commit 2ad29785278a38df3c1274bdff5f78cc663ee50b · nekomimi.pet/wisp.place-monorepo

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.env.grafana.example

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       # Grafana Cloud Configuration for wisp.place monorepo

     

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       # Copy these variables to your .env file to enable Grafana integration

     

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       # The observability package will automatically pick up these environment variables

     

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       # ============================================================================

     

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       # Grafana Loki (for logs)

     

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       # ============================================================================

     

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       # Get this from your Grafana Cloud portal under Loki → Details

     

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       # Example: https://logs-prod-012.grafana.net

     

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       GRAFANA_LOKI_URL=https://logs-prod-xxx.grafana.net

     

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       # Authentication Option 1: Bearer Token (Grafana Cloud)

     

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       GRAFANA_LOKI_TOKEN=glc_xxx

     

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       # Authentication Option 2: Username/Password (Self-hosted or some Grafana setups)

     

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       # GRAFANA_LOKI_USERNAME=your-username

     

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       # GRAFANA_LOKI_PASSWORD=your-password

     

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       # ============================================================================

     

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       # Grafana Prometheus (for metrics)

     

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       # ============================================================================

     

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       # Get this from your Grafana Cloud portal under Prometheus → Details

     

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       # Note: You need to add /api/prom to the base URL for OTLP export

     

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       # Example: https://prometheus-prod-10-prod-us-central-0.grafana.net/api/prom

     

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       GRAFANA_PROMETHEUS_URL=https://prometheus-prod-xxx.grafana.net/api/prom

     

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       # Authentication Option 1: Bearer Token (Grafana Cloud)

     

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       GRAFANA_PROMETHEUS_TOKEN=glc_xxx

     

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       # Authentication Option 2: Username/Password (Self-hosted or some Grafana setups)

     

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       # GRAFANA_PROMETHEUS_USERNAME=your-username

     

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       # GRAFANA_PROMETHEUS_PASSWORD=your-password

     

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       # ============================================================================

     

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       # Optional Configuration

     

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       # ============================================================================

     

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       # These will be used by both main-app and hosting-service if not overridden

     

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       # Service metadata (optional - defaults are provided in code)

     

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       # SERVICE_NAME=wisp-app

     

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       # SERVICE_VERSION=1.0.0

     

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       # Batching configuration (optional)

     

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       # GRAFANA_BATCH_SIZE=100              # Flush after this many entries

     

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       # GRAFANA_FLUSH_INTERVAL=5000         # Flush every 5 seconds

     

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       # ============================================================================

     

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       # How to get these values:

     

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       # ============================================================================

     

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       # 1. Sign up for Grafana Cloud at https://grafana.com/

     

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       # 2. Go to your Grafana Cloud portal

     

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       # 3. For Loki:

     

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       #    - Navigate to "Connections" → "Loki"

     

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       #    - Click "Details"

     

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       #    - Copy the Push endpoint URL (without /loki/api/v1/push)

     

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       #    - Create an API token with push permissions

     

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       # 4. For Prometheus:

     

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       #    - Navigate to "Connections" → "Prometheus"

     

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       #    - Click "Details"

     

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       #    - Copy the Remote Write endpoint (add /api/prom for OTLP)

     

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       #    - Create an API token with write permissions

     

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       # ============================================================================

     

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       # Testing the integration:

     

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       # ============================================================================

     

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       # 1. Copy this file's contents to your .env file

     

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       # 2. Fill in the actual values

     

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       # 3. Restart your services (main-app and hosting-service)

     

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       # 4. Check your Grafana Cloud dashboard for incoming data

     

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       # 5. Use Grafana Explore to query:

     

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       #    - Loki: {job="main-app"} or {job="hosting-service"}

     

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       #    - Prometheus: http_requests_total{service="main-app"}

+7 -1

apps/hosting-service/src/index.ts

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       import app from './server';

     

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       import { serve } from '@hono/node-server';

     

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       import { FirehoseWorker } from './lib/firehose';

     

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       import { createLogger } from '@wisp/observability';

     

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       import { createLogger, initializeGrafanaExporters } from '@wisp/observability';

     

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       import { mkdirSync, existsSync } from 'fs';

     

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       import { backfillCache } from './lib/backfill';

     

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       import { startDomainCacheCleanup, stopDomainCacheCleanup, setCacheOnlyMode } from './lib/db';

     

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       // Initialize Grafana exporters if configured

     

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       initializeGrafanaExporters({

     

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         serviceName: 'hosting-service',

     

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         serviceVersion: '1.0.0'

     

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       });

     

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       const logger = createLogger('hosting-service');

     

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+7 -1

apps/main-app/src/index.ts

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       import { siteRoutes } from './routes/site'

     

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       import { csrfProtection } from './lib/csrf'

     

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       import { DNSVerificationWorker } from './lib/dns-verification-worker'

     

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       import { createLogger, logCollector } from '@wisp/observability'

     

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       import { createLogger, logCollector, initializeGrafanaExporters } from '@wisp/observability'

     

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       import { observabilityMiddleware } from '@wisp/observability/middleware/elysia'

     

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       import { promptAdminSetup } from './lib/admin-auth'

     

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       import { adminRoutes } from './routes/admin'

     

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       // Initialize Grafana exporters if configured

     

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       initializeGrafanaExporters({

     

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       	serviceName: 'main-app',

     

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       	serviceVersion: '1.0.50'

     

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       })

     

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       const logger = createLogger('main-app')

     

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+179 -7

bun.lock

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           "packages/@wisp/observability": {

     

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             "name": "@wisp/observability",

     

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             "version": "1.0.0",

     

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             "dependencies": {

     

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             },

     

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             "devDependencies": {

     

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               "@hono/node-server": "^1.19.6",

     

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               "bun-types": "^1.3.3",

     

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               "typescript": "^5.9.3",

     

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             },

     

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             "peerDependencies": {

     

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               "hono": "^4.0.0",

     

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               "hono": "",

     

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             },

     

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             "optionalPeers": [

     

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               "hono",

     
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       1303
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           "@opentelemetry/exporter-logs-otlp-grpc/@opentelemetry/otlp-transformer/@opentelemetry/sdk-metrics": ["@opentelemetry/sdk-metrics@2.0.0", "", { "dependencies": { "@opentelemetry/core": "2.0.0", "@opentelemetry/resources": "2.0.0" }, "peerDependencies": { "@opentelemetry/api": ">=1.9.0 <1.10.0" } }, "sha512-Bvy8QDjO05umd0+j+gDeWcTaVa1/R2lDj/eOvjzpm8VQj1K1vVZJuyjThpV5/lSHyYW2JaHF2IQ7Z8twJFAhjA=="],

     

       1304
       1304
       +
       

     

       1305
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           "@opentelemetry/exporter-logs-otlp-http/@opentelemetry/otlp-transformer/@opentelemetry/resources": ["@opentelemetry/resources@2.0.0", "", { "dependencies": { "@opentelemetry/core": "2.0.0", "@opentelemetry/semantic-conventions": "^1.29.0" }, "peerDependencies": { "@opentelemetry/api": ">=1.3.0 <1.10.0" } }, "sha512-rnZr6dML2z4IARI4zPGQV4arDikF/9OXZQzrC01dLmn0CZxU5U5OLd/m1T7YkGRj5UitjeoCtg/zorlgMQcdTg=="],

     

       1306
       1306
       +
       

     

       1307
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           "@opentelemetry/exporter-logs-otlp-http/@opentelemetry/otlp-transformer/@opentelemetry/sdk-metrics": ["@opentelemetry/sdk-metrics@2.0.0", "", { "dependencies": { "@opentelemetry/core": "2.0.0", "@opentelemetry/resources": "2.0.0" }, "peerDependencies": { "@opentelemetry/api": ">=1.9.0 <1.10.0" } }, "sha512-Bvy8QDjO05umd0+j+gDeWcTaVa1/R2lDj/eOvjzpm8VQj1K1vVZJuyjThpV5/lSHyYW2JaHF2IQ7Z8twJFAhjA=="],

     

       1308
       1308
       +
       

     

       1309
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           "@opentelemetry/exporter-logs-otlp-proto/@opentelemetry/otlp-transformer/@opentelemetry/sdk-metrics": ["@opentelemetry/sdk-metrics@2.0.0", "", { "dependencies": { "@opentelemetry/core": "2.0.0", "@opentelemetry/resources": "2.0.0" }, "peerDependencies": { "@opentelemetry/api": ">=1.9.0 <1.10.0" } }, "sha512-Bvy8QDjO05umd0+j+gDeWcTaVa1/R2lDj/eOvjzpm8VQj1K1vVZJuyjThpV5/lSHyYW2JaHF2IQ7Z8twJFAhjA=="],

     

       1310
       1310
       +
       

     

       1311
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           "@opentelemetry/exporter-metrics-otlp-http/@opentelemetry/resources/@opentelemetry/semantic-conventions": ["@opentelemetry/semantic-conventions@1.28.0", "", {}, "sha512-lp4qAiMTD4sNWW4DbKLBkfiMZ4jbAboJIGOQr5DvciMRI494OapieI9qiODpOt0XBr1LjIDy1xAGAnVs5supTA=="],

     

       1312
       1312
       +
       

     

       1313
       1313
       +
           "@opentelemetry/exporter-trace-otlp-grpc/@opentelemetry/otlp-transformer/@opentelemetry/sdk-metrics": ["@opentelemetry/sdk-metrics@2.0.0", "", { "dependencies": { "@opentelemetry/core": "2.0.0", "@opentelemetry/resources": "2.0.0" }, "peerDependencies": { "@opentelemetry/api": ">=1.9.0 <1.10.0" } }, "sha512-Bvy8QDjO05umd0+j+gDeWcTaVa1/R2lDj/eOvjzpm8VQj1K1vVZJuyjThpV5/lSHyYW2JaHF2IQ7Z8twJFAhjA=="],

     

       1314
       1314
       +
       

     

       1315
       1315
       +
           "@opentelemetry/exporter-trace-otlp-http/@opentelemetry/otlp-transformer/@opentelemetry/sdk-metrics": ["@opentelemetry/sdk-metrics@2.0.0", "", { "dependencies": { "@opentelemetry/core": "2.0.0", "@opentelemetry/resources": "2.0.0" }, "peerDependencies": { "@opentelemetry/api": ">=1.9.0 <1.10.0" } }, "sha512-Bvy8QDjO05umd0+j+gDeWcTaVa1/R2lDj/eOvjzpm8VQj1K1vVZJuyjThpV5/lSHyYW2JaHF2IQ7Z8twJFAhjA=="],

     

       1316
       1316
       +
       

     

       1317
       1317
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           "@opentelemetry/exporter-trace-otlp-proto/@opentelemetry/otlp-transformer/@opentelemetry/sdk-metrics": ["@opentelemetry/sdk-metrics@2.0.0", "", { "dependencies": { "@opentelemetry/core": "2.0.0", "@opentelemetry/resources": "2.0.0" }, "peerDependencies": { "@opentelemetry/api": ">=1.9.0 <1.10.0" } }, "sha512-Bvy8QDjO05umd0+j+gDeWcTaVa1/R2lDj/eOvjzpm8VQj1K1vVZJuyjThpV5/lSHyYW2JaHF2IQ7Z8twJFAhjA=="],

     

       1318
       1318
       +
       

     

       1319
       1319
       +
           "@opentelemetry/otlp-grpc-exporter-base/@opentelemetry/otlp-transformer/@opentelemetry/resources": ["@opentelemetry/resources@2.0.0", "", { "dependencies": { "@opentelemetry/core": "2.0.0", "@opentelemetry/semantic-conventions": "^1.29.0" }, "peerDependencies": { "@opentelemetry/api": ">=1.3.0 <1.10.0" } }, "sha512-rnZr6dML2z4IARI4zPGQV4arDikF/9OXZQzrC01dLmn0CZxU5U5OLd/m1T7YkGRj5UitjeoCtg/zorlgMQcdTg=="],

     

       1320
       1320
       +
       

     

       1321
       1321
       +
           "@opentelemetry/otlp-grpc-exporter-base/@opentelemetry/otlp-transformer/@opentelemetry/sdk-metrics": ["@opentelemetry/sdk-metrics@2.0.0", "", { "dependencies": { "@opentelemetry/core": "2.0.0", "@opentelemetry/resources": "2.0.0" }, "peerDependencies": { "@opentelemetry/api": ">=1.9.0 <1.10.0" } }, "sha512-Bvy8QDjO05umd0+j+gDeWcTaVa1/R2lDj/eOvjzpm8VQj1K1vVZJuyjThpV5/lSHyYW2JaHF2IQ7Z8twJFAhjA=="],

     

       1322
       1322
       +
       

     

       1323
       1323
       +
           "@opentelemetry/otlp-transformer/@opentelemetry/resources/@opentelemetry/semantic-conventions": ["@opentelemetry/semantic-conventions@1.28.0", "", {}, "sha512-lp4qAiMTD4sNWW4DbKLBkfiMZ4jbAboJIGOQr5DvciMRI494OapieI9qiODpOt0XBr1LjIDy1xAGAnVs5supTA=="],

     

       1324
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       +
       

     

       1325
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       +
           "@opentelemetry/otlp-transformer/@opentelemetry/sdk-trace-base/@opentelemetry/semantic-conventions": ["@opentelemetry/semantic-conventions@1.28.0", "", {}, "sha512-lp4qAiMTD4sNWW4DbKLBkfiMZ4jbAboJIGOQr5DvciMRI494OapieI9qiODpOt0XBr1LjIDy1xAGAnVs5supTA=="],

     

       1326
       1326
       +
       

     

       1327
       1327
       +
           "@opentelemetry/sdk-metrics/@opentelemetry/core/@opentelemetry/semantic-conventions": ["@opentelemetry/semantic-conventions@1.28.0", "", {}, "sha512-lp4qAiMTD4sNWW4DbKLBkfiMZ4jbAboJIGOQr5DvciMRI494OapieI9qiODpOt0XBr1LjIDy1xAGAnVs5supTA=="],

     

       1328
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       +
       

     

       1329
       1329
       +
           "@opentelemetry/sdk-node/@opentelemetry/exporter-metrics-otlp-http/@opentelemetry/otlp-exporter-base": ["@opentelemetry/otlp-exporter-base@0.200.0", "", { "dependencies": { "@opentelemetry/core": "2.0.0", "@opentelemetry/otlp-transformer": "0.200.0" }, "peerDependencies": { "@opentelemetry/api": "^1.3.0" } }, "sha512-IxJgA3FD7q4V6gGq4bnmQM5nTIyMDkoGFGrBrrDjB6onEiq1pafma55V+bHvGYLWvcqbBbRfezr1GED88lacEQ=="],

     

       1330
       1330
       +
       

     

       1331
       1331
       +
           "@opentelemetry/sdk-node/@opentelemetry/exporter-metrics-otlp-http/@opentelemetry/otlp-transformer": ["@opentelemetry/otlp-transformer@0.200.0", "", { "dependencies": { "@opentelemetry/api-logs": "0.200.0", "@opentelemetry/core": "2.0.0", "@opentelemetry/resources": "2.0.0", "@opentelemetry/sdk-logs": "0.200.0", "@opentelemetry/sdk-metrics": "2.0.0", "@opentelemetry/sdk-trace-base": "2.0.0", "protobufjs": "^7.3.0" }, "peerDependencies": { "@opentelemetry/api": "^1.3.0" } }, "sha512-+9YDZbYybOnv7sWzebWOeK6gKyt2XE7iarSyBFkwwnP559pEevKOUD8NyDHhRjCSp13ybh9iVXlMfcj/DwF/yw=="],

     

       1160
       1332
        
       

     

       1161
       1333
        
           "@tokenizer/inflate/debug/ms": ["ms@2.1.3", "", {}, "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA=="],

     

       1162
       1334

docs/astro.config.mjs

···

       24
       24
        
       					label: 'Guides',

     

       25
       25
        
       					items: [

     

       26
       26
        
       						{ label: 'Self-Hosting', slug: 'deployment' },

     

       27
       27
       +
       						{ label: 'Monitoring & Metrics', slug: 'monitoring' },

     

       27
       28
        
       						{ label: 'Redirects & Rewrites', slug: 'redirects' },

     

       28
       29
        
       					],

     

       29
       30
        
       				},

+85

docs/src/content/docs/guides/grafana-setup.md

···

       1
       1
       +
       ---

     

       2
       2
       +
       title: Grafana Setup Example

     

       3
       3
       +
       description: Quick setup for Grafana Cloud monitoring

     

       4
       4
       +
       ---

     

       5
       5
       +
       

     

       6
       6
       +
       Example setup for monitoring Wisp.place with Grafana Cloud.

     

       7
       7
       +
       

     

       8
       8
       +
       ## 1. Create Grafana Cloud Account

     

       9
       9
       +
       

     

       10
       10
       +
       Sign up at [grafana.com](https://grafana.com) for a free tier account.

     

       11
       11
       +
       

     

       12
       12
       +
       ## 2. Get Credentials

     

       13
       13
       +
       

     

       14
       14
       +
       Navigate to your stack and find:

     

       15
       15
       +
       

     

       16
       16
       +
       **Loki** (Connections → Loki → Details):

     

       17
       17
       +
       - Push endpoint: `https://logs-prod-XXX.grafana.net`

     

       18
       18
       +
       - Create API token with write permissions

     

       19
       19
       +
       

     

       20
       20
       +
       **Prometheus** (Connections → Prometheus → Details):

     

       21
       21
       +
       - Remote Write endpoint: `https://prometheus-prod-XXX.grafana.net/api/prom`

     

       22
       22
       +
       - Create API token with write permissions

     

       23
       23
       +
       

     

       24
       24
       +
       ## 3. Configure Wisp.place

     

       25
       25
       +
       

     

       26
       26
       +
       Add to your `.env`:

     

       27
       27
       +
       

     

       28
       28
       +
       ```bash

     

       29
       29
       +
       GRAFANA_LOKI_URL=https://logs-prod-XXX.grafana.net

     

       30
       30
       +
       GRAFANA_LOKI_TOKEN=glc_eyJ...

     

       31
       31
       +
       

     

       32
       32
       +
       GRAFANA_PROMETHEUS_URL=https://prometheus-prod-XXX.grafana.net/api/prom

     

       33
       33
       +
       GRAFANA_PROMETHEUS_TOKEN=glc_eyJ...

     

       34
       34
       +
       ```

     

       35
       35
       +
       

     

       36
       36
       +
       ## 4. Create Dashboard

     

       37
       37
       +
       

     

       38
       38
       +
       Import this dashboard JSON or build your own:

     

       39
       39
       +
       

     

       40
       40
       +
       ```json

     

       41
       41
       +
       {

     

       42
       42
       +
         "panels": [

     

       43
       43
       +
           {

     

       44
       44
       +
             "title": "Request Rate",

     

       45
       45
       +
             "targets": [{

     

       46
       46
       +
               "expr": "sum(rate(http_requests_total[1m])) by (service)"

     

       47
       47
       +
             }]

     

       48
       48
       +
           },

     

       49
       49
       +
           {

     

       50
       50
       +
             "title": "P95 Latency",

     

       51
       51
       +
             "targets": [{

     

       52
       52
       +
               "expr": "histogram_quantile(0.95, rate(http_request_duration_ms_bucket[5m]))"

     

       53
       53
       +
             }]

     

       54
       54
       +
           },

     

       55
       55
       +
           {

     

       56
       56
       +
             "title": "Error Rate",

     

       57
       57
       +
             "targets": [{

     

       58
       58
       +
               "expr": "sum(rate(errors_total[5m])) / sum(rate(http_requests_total[5m]))"

     

       59
       59
       +
             }]

     

       60
       60
       +
           }

     

       61
       61
       +
         ]

     

       62
       62
       +
       }

     

       63
       63
       +
       ```

     

       64
       64
       +
       

     

       65
       65
       +
       ## 5. Set Alerts

     

       66
       66
       +
       

     

       67
       67
       +
       Example alert for high error rate:

     

       68
       68
       +
       

     

       69
       69
       +
       ```yaml

     

       70
       70
       +
       alert: HighErrorRate

     

       71
       71
       +
       expr: |

     

       72
       72
       +
         sum(rate(errors_total[5m])) by (service) /

     

       73
       73
       +
         sum(rate(http_requests_total[5m])) by (service) > 0.05

     

       74
       74
       +
       for: 5m

     

       75
       75
       +
       annotations:

     

       76
       76
       +
         summary: "High error rate in {{ $labels.service }}"

     

       77
       77
       +
       ```

     

       78
       78
       +
       

     

       79
       79
       +
       ## Verify Data Flow

     

       80
       80
       +
       

     

       81
       81
       +
       Check Grafana Explore:

     

       82
       82
       +
       - Loki: `{job="main-app"} | json`

     

       83
       83
       +
       - Prometheus: `http_requests_total`

     

       84
       84
       +
       

     

       85
       85
       +
       Data should appear within 30 seconds of service startup.

+156

docs/src/content/docs/monitoring.md

···

       1
       1
       +
       ---

     

       2
       2
       +
       title: Monitoring & Metrics

     

       3
       3
       +
       description: Track performance and debug issues with Grafana integration

     

       4
       4
       +
       ---

     

       5
       5
       +
       

     

       6
       6
       +
       Wisp.place includes built-in observability with automatic Grafana integration for logs and metrics. Monitor request performance, track errors, and analyze usage patterns across both the main backend and hosting service.

     

       7
       7
       +
       

     

       8
       8
       +
       ## Quick Start

     

       9
       9
       +
       

     

       10
       10
       +
       Set environment variables to enable Grafana export:

     

       11
       11
       +
       

     

       12
       12
       +
       ```bash

     

       13
       13
       +
       # Grafana Cloud

     

       14
       14
       +
       GRAFANA_LOKI_URL=https://logs-prod-xxx.grafana.net

     

       15
       15
       +
       GRAFANA_LOKI_TOKEN=glc_xxx

     

       16
       16
       +
       

     

       17
       17
       +
       GRAFANA_PROMETHEUS_URL=https://prometheus-prod-xxx.grafana.net/api/prom

     

       18
       18
       +
       GRAFANA_PROMETHEUS_TOKEN=glc_xxx

     

       19
       19
       +
       

     

       20
       20
       +
       # Self-hosted Grafana

     

       21
       21
       +
       GRAFANA_LOKI_USERNAME=your-username

     

       22
       22
       +
       GRAFANA_LOKI_PASSWORD=your-password

     

       23
       23
       +
       ```

     

       24
       24
       +
       

     

       25
       25
       +
       Restart services. Metrics and logs now flow to Grafana automatically.

     

       26
       26
       +
       

     

       27
       27
       +
       ## Metrics Collected

     

       28
       28
       +
       

     

       29
       29
       +
       ### HTTP Requests

     

       30
       30
       +
       - `http_requests_total` - Total request count by path, method, status

     

       31
       31
       +
       - `http_request_duration_ms` - Request duration histogram

     

       32
       32
       +
       - `errors_total` - Error count by service

     

       33
       33
       +
       

     

       34
       34
       +
       ### Performance Stats

     

       35
       35
       +
       - P50, P95, P99 response times

     

       36
       36
       +
       - Requests per minute

     

       37
       37
       +
       - Error rates

     

       38
       38
       +
       - Average duration by endpoint

     

       39
       39
       +
       

     

       40
       40
       +
       ## Log Aggregation

     

       41
       41
       +
       

     

       42
       42
       +
       Logs are sent to Loki with automatic categorization:

     

       43
       43
       +
       

     

       44
       44
       +
       ```

     

       45
       45
       +
       {job="main-app"} |= "error"        # OAuth and upload errors

     

       46
       46
       +
       {job="hosting-service"} |= "cache"  # Cache operations

     

       47
       47
       +
       {service="hosting-service", level="warn"}  # Warnings only

     

       48
       48
       +
       ```

     

       49
       49
       +
       

     

       50
       50
       +
       ## Service Identification

     

       51
       51
       +
       

     

       52
       52
       +
       Each service is tagged separately:

     

       53
       53
       +
       - `main-app` - OAuth, uploads, domain management

     

       54
       54
       +
       - `hosting-service` - Firehose, caching, content serving

     

       55
       55
       +
       

     

       56
       56
       +
       ## Configuration Options

     

       57
       57
       +
       

     

       58
       58
       +
       ### Environment Variables

     

       59
       59
       +
       

     

       60
       60
       +
       ```bash

     

       61
       61
       +
       # Required

     

       62
       62
       +
       GRAFANA_LOKI_URL          # Loki endpoint

     

       63
       63
       +
       GRAFANA_PROMETHEUS_URL    # Prometheus endpoint (add /api/prom for OTLP)

     

       64
       64
       +
       

     

       65
       65
       +
       # Authentication (use one)

     

       66
       66
       +
       GRAFANA_LOKI_TOKEN        # Bearer token (Grafana Cloud)

     

       67
       67
       +
       GRAFANA_LOKI_USERNAME     # Basic auth (self-hosted)

     

       68
       68
       +
       GRAFANA_LOKI_PASSWORD

     

       69
       69
       +
       

     

       70
       70
       +
       # Optional

     

       71
       71
       +
       GRAFANA_BATCH_SIZE=100    # Batch size before flush

     

       72
       72
       +
       GRAFANA_FLUSH_INTERVAL=5000  # Flush interval in ms

     

       73
       73
       +
       ```

     

       74
       74
       +
       

     

       75
       75
       +
       ### Programmatic Setup

     

       76
       76
       +
       

     

       77
       77
       +
       ```typescript

     

       78
       78
       +
       import { initializeGrafanaExporters } from '@wisp/observability'

     

       79
       79
       +
       

     

       80
       80
       +
       initializeGrafanaExporters({

     

       81
       81
       +
         lokiUrl: 'https://logs.grafana.net',

     

       82
       82
       +
         lokiAuth: { bearerToken: 'token' },

     

       83
       83
       +
         prometheusUrl: 'https://prometheus.grafana.net/api/prom',

     

       84
       84
       +
         prometheusAuth: { bearerToken: 'token' },

     

       85
       85
       +
         serviceName: 'my-service',

     

       86
       86
       +
         batchSize: 100,

     

       87
       87
       +
         flushIntervalMs: 5000

     

       88
       88
       +
       })

     

       89
       89
       +
       ```

     

       90
       90
       +
       

     

       91
       91
       +
       ## Grafana Dashboard Queries

     

       92
       92
       +
       

     

       93
       93
       +
       ### Request Performance

     

       94
       94
       +
       ```promql

     

       95
       95
       +
       # Average response time by endpoint

     

       96
       96
       +
       avg by (path) (

     

       97
       97
       +
         rate(http_request_duration_ms_sum[5m]) /

     

       98
       98
       +
         rate(http_request_duration_ms_count[5m])

     

       99
       99
       +
       )

     

       100
       100
       +
       

     

       101
       101
       +
       # Request rate

     

       102
       102
       +
       sum(rate(http_requests_total[1m])) by (service)

     

       103
       103
       +
       

     

       104
       104
       +
       # Error rate

     

       105
       105
       +
       sum(rate(errors_total[5m])) by (service) /

     

       106
       106
       +
       sum(rate(http_requests_total[5m])) by (service)

     

       107
       107
       +
       ```

     

       108
       108
       +
       

     

       109
       109
       +
       ### Log Analysis

     

       110
       110
       +
       ```logql

     

       111
       111
       +
       # Recent errors

     

       112
       112
       +
       {job="main-app"} |= "error" | json

     

       113
       113
       +
       

     

       114
       114
       +
       # Slow requests (>1s)

     

       115
       115
       +
       {job="hosting-service"} |~ "duration.*[1-9][0-9]{3,}"

     

       116
       116
       +
       

     

       117
       117
       +
       # Failed OAuth attempts

     

       118
       118
       +
       {job="main-app"} |= "OAuth" |= "failed"

     

       119
       119
       +
       ```

     

       120
       120
       +
       

     

       121
       121
       +
       ## Troubleshooting

     

       122
       122
       +
       

     

       123
       123
       +
       ### Logs not appearing

     

       124
       124
       +
       - Check `GRAFANA_LOKI_URL` is correct (no trailing `/loki/api/v1/push`)

     

       125
       125
       +
       - Verify authentication token/credentials

     

       126
       126
       +
       - Look for connection errors in service logs

     

       127
       127
       +
       

     

       128
       128
       +
       ### Metrics missing

     

       129
       129
       +
       - Ensure `GRAFANA_PROMETHEUS_URL` includes `/api/prom` suffix

     

       130
       130
       +
       - Check firewall rules allow outbound HTTPS

     

       131
       131
       +
       - Verify OpenTelemetry export errors in logs

     

       132
       132
       +
       

     

       133
       133
       +
       ### High memory usage

     

       134
       134
       +
       - Reduce `GRAFANA_BATCH_SIZE` (default: 100)

     

       135
       135
       +
       - Lower `GRAFANA_FLUSH_INTERVAL` to flush more frequently

     

       136
       136
       +
       

     

       137
       137
       +
       ## Local Development

     

       138
       138
       +
       

     

       139
       139
       +
       Metrics and logs are stored in-memory when Grafana isn't configured. Access them via:

     

       140
       140
       +
       

     

       141
       141
       +
       - `http://localhost:8000/api/observability/logs`

     

       142
       142
       +
       - `http://localhost:8000/api/observability/metrics`

     

       143
       143
       +
       - `http://localhost:8000/api/observability/errors`

     

       144
       144
       +
       

     

       145
       145
       +
       ## Testing Integration

     

       146
       146
       +
       

     

       147
       147
       +
       Run integration tests to verify setup:

     

       148
       148
       +
       

     

       149
       149
       +
       ```bash

     

       150
       150
       +
       cd packages/@wisp/observability

     

       151
       151
       +
       bun test src/integration-test.test.ts

     

       152
       152
       +
       

     

       153
       153
       +
       # Test with live Grafana

     

       154
       154
       +
       GRAFANA_LOKI_URL=... GRAFANA_LOKI_USERNAME=... GRAFANA_LOKI_PASSWORD=... \

     

       155
       155
       +
       bun test src/integration-test.test.ts

     

       156
       156
       +
       ```

+33

packages/@wisp/observability/.env.example

···

       1
       1
       +
       # Grafana Cloud Configuration for @wisp/observability

     

       2
       2
       +
       # Copy this file to .env and fill in your actual values

     

       3
       3
       +
       

     

       4
       4
       +
       # ============================================================================

     

       5
       5
       +
       # Grafana Loki (for logs)

     

       6
       6
       +
       # ============================================================================

     

       7
       7
       +
       GRAFANA_LOKI_URL=https://logs-prod-xxx.grafana.net

     

       8
       8
       +
       

     

       9
       9
       +
       # Authentication Option 1: Bearer Token (Grafana Cloud)

     

       10
       10
       +
       GRAFANA_LOKI_TOKEN=glc_xxx

     

       11
       11
       +
       

     

       12
       12
       +
       # Authentication Option 2: Username/Password (Self-hosted or some Grafana setups)

     

       13
       13
       +
       # GRAFANA_LOKI_USERNAME=your-username

     

       14
       14
       +
       # GRAFANA_LOKI_PASSWORD=your-password

     

       15
       15
       +
       

     

       16
       16
       +
       # ============================================================================

     

       17
       17
       +
       # Grafana Prometheus (for metrics)

     

       18
       18
       +
       # ============================================================================

     

       19
       19
       +
       # Note: Add /api/prom to the base URL for OTLP export

     

       20
       20
       +
       GRAFANA_PROMETHEUS_URL=https://prometheus-prod-xxx.grafana.net/api/prom

     

       21
       21
       +
       

     

       22
       22
       +
       # Authentication Option 1: Bearer Token (Grafana Cloud)

     

       23
       23
       +
       GRAFANA_PROMETHEUS_TOKEN=glc_xxx

     

       24
       24
       +
       

     

       25
       25
       +
       # Authentication Option 2: Username/Password (Self-hosted or some Grafana setups)

     

       26
       26
       +
       # GRAFANA_PROMETHEUS_USERNAME=your-username

     

       27
       27
       +
       # GRAFANA_PROMETHEUS_PASSWORD=your-password

     

       28
       28
       +
       

     

       29
       29
       +
       # ============================================================================

     

       30
       30
       +
       # Optional: Override service metadata

     

       31
       31
       +
       # ============================================================================

     

       32
       32
       +
       # SERVICE_NAME=wisp-app

     

       33
       33
       +
       # SERVICE_VERSION=1.0.0

+217

packages/@wisp/observability/README.md

···

       1
       1
       +
       # @wisp/observability

     

       2
       2
       +
       

     

       3
       3
       +
       Framework-agnostic observability package with Grafana integration for logs and metrics persistence.

     

       4
       4
       +
       

     

       5
       5
       +
       ## Features

     

       6
       6
       +
       

     

       7
       7
       +
       - **In-memory storage** for local development

     

       8
       8
       +
       - **Grafana Loki** integration for log persistence

     

       9
       9
       +
       - **Prometheus/OTLP** integration for metrics

     

       10
       10
       +
       - Framework middleware for Elysia and Hono

     

       11
       11
       +
       - Automatic batching and buffering for efficient data transmission

     

       12
       12
       +
       

     

       13
       13
       +
       ## Installation

     

       14
       14
       +
       

     

       15
       15
       +
       ```bash

     

       16
       16
       +
       bun add @wisp/observability

     

       17
       17
       +
       ```

     

       18
       18
       +
       

     

       19
       19
       +
       ## Basic Usage

     

       20
       20
       +
       

     

       21
       21
       +
       ### Without Grafana (In-Memory Only)

     

       22
       22
       +
       

     

       23
       23
       +
       ```typescript

     

       24
       24
       +
       import { createLogger, metricsCollector } from '@wisp/observability'

     

       25
       25
       +
       

     

       26
       26
       +
       const logger = createLogger('my-service')

     

       27
       27
       +
       

     

       28
       28
       +
       // Log messages

     

       29
       29
       +
       logger.info('Server started')

     

       30
       30
       +
       logger.error('Failed to connect', new Error('Connection refused'))

     

       31
       31
       +
       

     

       32
       32
       +
       // Record metrics

     

       33
       33
       +
       metricsCollector.recordRequest('/api/users', 'GET', 200, 45, 'my-service')

     

       34
       34
       +
       ```

     

       35
       35
       +
       

     

       36
       36
       +
       ### With Grafana Integration

     

       37
       37
       +
       

     

       38
       38
       +
       ```typescript

     

       39
       39
       +
       import { initializeGrafanaExporters, createLogger } from '@wisp/observability'

     

       40
       40
       +
       

     

       41
       41
       +
       // Initialize at application startup

     

       42
       42
       +
       initializeGrafanaExporters({

     

       43
       43
       +
         lokiUrl: 'https://logs-prod.grafana.net',

     

       44
       44
       +
         lokiAuth: {

     

       45
       45
       +
           bearerToken: 'your-loki-api-key'

     

       46
       46
       +
         },

     

       47
       47
       +
         prometheusUrl: 'https://prometheus-prod.grafana.net',

     

       48
       48
       +
         prometheusAuth: {

     

       49
       49
       +
           bearerToken: 'your-prometheus-api-key'

     

       50
       50
       +
         },

     

       51
       51
       +
         serviceName: 'wisp-app',

     

       52
       52
       +
         serviceVersion: '1.0.0',

     

       53
       53
       +
         batchSize: 100,

     

       54
       54
       +
         flushIntervalMs: 5000

     

       55
       55
       +
       })

     

       56
       56
       +
       

     

       57
       57
       +
       // Now all logs and metrics will be sent to Grafana automatically

     

       58
       58
       +
       const logger = createLogger('my-service')

     

       59
       59
       +
       logger.info('This will be sent to Grafana Loki')

     

       60
       60
       +
       ```

     

       61
       61
       +
       

     

       62
       62
       +
       ## Configuration

     

       63
       63
       +
       

     

       64
       64
       +
       ### Environment Variables

     

       65
       65
       +
       

     

       66
       66
       +
       You can configure Grafana integration using environment variables:

     

       67
       67
       +
       

     

       68
       68
       +
       ```bash

     

       69
       69
       +
       # Loki configuration

     

       70
       70
       +
       GRAFANA_LOKI_URL=https://logs-prod.grafana.net

     

       71
       71
       +
       

     

       72
       72
       +
       # Authentication Option 1: Bearer Token (Grafana Cloud)

     

       73
       73
       +
       GRAFANA_LOKI_TOKEN=your-loki-api-key

     

       74
       74
       +
       

     

       75
       75
       +
       # Authentication Option 2: Username/Password (Self-hosted or some Grafana setups)

     

       76
       76
       +
       GRAFANA_LOKI_USERNAME=your-username

     

       77
       77
       +
       GRAFANA_LOKI_PASSWORD=your-password

     

       78
       78
       +
       

     

       79
       79
       +
       # Prometheus configuration

     

       80
       80
       +
       GRAFANA_PROMETHEUS_URL=https://prometheus-prod.grafana.net/api/prom

     

       81
       81
       +
       

     

       82
       82
       +
       # Authentication Option 1: Bearer Token (Grafana Cloud)

     

       83
       83
       +
       GRAFANA_PROMETHEUS_TOKEN=your-prometheus-api-key

     

       84
       84
       +
       

     

       85
       85
       +
       # Authentication Option 2: Username/Password (Self-hosted or some Grafana setups)

     

       86
       86
       +
       GRAFANA_PROMETHEUS_USERNAME=your-username

     

       87
       87
       +
       GRAFANA_PROMETHEUS_PASSWORD=your-password

     

       88
       88
       +
       ```

     

       89
       89
       +
       

     

       90
       90
       +
       ### Programmatic Configuration

     

       91
       91
       +
       

     

       92
       92
       +
       ```typescript

     

       93
       93
       +
       import { initializeGrafanaExporters } from '@wisp/observability'

     

       94
       94
       +
       

     

       95
       95
       +
       initializeGrafanaExporters({

     

       96
       96
       +
         // Loki configuration for logs

     

       97
       97
       +
         lokiUrl: 'https://logs-prod.grafana.net',

     

       98
       98
       +
         lokiAuth: {

     

       99
       99
       +
           // Option 1: Bearer token (recommended for Grafana Cloud)

     

       100
       100
       +
           bearerToken: 'your-api-key',

     

       101
       101
       +
       

     

       102
       102
       +
           // Option 2: Basic auth

     

       103
       103
       +
           username: 'your-username',

     

       104
       104
       +
           password: 'your-password'

     

       105
       105
       +
         },

     

       106
       106
       +
       

     

       107
       107
       +
         // Prometheus/OTLP configuration for metrics

     

       108
       108
       +
         prometheusUrl: 'https://prometheus-prod.grafana.net',

     

       109
       109
       +
         prometheusAuth: {

     

       110
       110
       +
           bearerToken: 'your-api-key'

     

       111
       111
       +
         },

     

       112
       112
       +
       

     

       113
       113
       +
         // Service metadata

     

       114
       114
       +
         serviceName: 'wisp-app',

     

       115
       115
       +
         serviceVersion: '1.0.0',

     

       116
       116
       +
       

     

       117
       117
       +
         // Batching configuration

     

       118
       118
       +
         batchSize: 100,              // Flush after this many entries

     

       119
       119
       +
         flushIntervalMs: 5000,       // Flush every 5 seconds

     

       120
       120
       +
       

     

       121
       121
       +
         // Enable/disable exporters

     

       122
       122
       +
         enabled: true

     

       123
       123
       +
       })

     

       124
       124
       +
       ```

     

       125
       125
       +
       

     

       126
       126
       +
       ## Middleware Integration

     

       127
       127
       +
       

     

       128
       128
       +
       ### Elysia

     

       129
       129
       +
       

     

       130
       130
       +
       ```typescript

     

       131
       131
       +
       import { Elysia } from 'elysia'

     

       132
       132
       +
       import { observabilityMiddleware } from '@wisp/observability/middleware/elysia'

     

       133
       133
       +
       import { initializeGrafanaExporters } from '@wisp/observability'

     

       134
       134
       +
       

     

       135
       135
       +
       // Initialize Grafana exporters

     

       136
       136
       +
       initializeGrafanaExporters({

     

       137
       137
       +
         lokiUrl: process.env.GRAFANA_LOKI_URL,

     

       138
       138
       +
         lokiAuth: { bearerToken: process.env.GRAFANA_LOKI_TOKEN }

     

       139
       139
       +
       })

     

       140
       140
       +
       

     

       141
       141
       +
       const app = new Elysia()

     

       142
       142
       +
         .use(observabilityMiddleware({ service: 'main-app' }))

     

       143
       143
       +
         .get('/', () => 'Hello World')

     

       144
       144
       +
         .listen(3000)

     

       145
       145
       +
       ```

     

       146
       146
       +
       

     

       147
       147
       +
       ### Hono

     

       148
       148
       +
       

     

       149
       149
       +
       ```typescript

     

       150
       150
       +
       import { Hono } from 'hono'

     

       151
       151
       +
       import { observabilityMiddleware, observabilityErrorHandler } from '@wisp/observability/middleware/hono'

     

       152
       152
       +
       import { initializeGrafanaExporters } from '@wisp/observability'

     

       153
       153
       +
       

     

       154
       154
       +
       // Initialize Grafana exporters

     

       155
       155
       +
       initializeGrafanaExporters({

     

       156
       156
       +
         lokiUrl: process.env.GRAFANA_LOKI_URL,

     

       157
       157
       +
         lokiAuth: { bearerToken: process.env.GRAFANA_LOKI_TOKEN }

     

       158
       158
       +
       })

     

       159
       159
       +
       

     

       160
       160
       +
       const app = new Hono()

     

       161
       161
       +
       app.use('*', observabilityMiddleware({ service: 'hosting-service' }))

     

       162
       162
       +
       app.onError(observabilityErrorHandler({ service: 'hosting-service' }))

     

       163
       163
       +
       ```

     

       164
       164
       +
       

     

       165
       165
       +
       ## Grafana Cloud Setup

     

       166
       166
       +
       

     

       167
       167
       +
       1. **Create a Grafana Cloud account** at https://grafana.com/

     

       168
       168
       +
       

     

       169
       169
       +
       2. **Get your Loki credentials:**

     

       170
       170
       +
          - Go to your Grafana Cloud portal

     

       171
       171
       +
          - Navigate to "Loki" → "Details"

     

       172
       172
       +
          - Copy the Push endpoint URL and create an API key

     

       173
       173
       +
       

     

       174
       174
       +
       3. **Get your Prometheus credentials:**

     

       175
       175
       +
          - Navigate to "Prometheus" → "Details"

     

       176
       176
       +
          - Copy the Remote Write endpoint and create an API key

     

       177
       177
       +
       

     

       178
       178
       +
       4. **Configure your application:**

     

       179
       179
       +
          ```typescript

     

       180
       180
       +
          initializeGrafanaExporters({

     

       181
       181
       +
            lokiUrl: 'https://logs-prod-xxx.grafana.net',

     

       182
       182
       +
            lokiAuth: { bearerToken: 'glc_xxx' },

     

       183
       183
       +
            prometheusUrl: 'https://prometheus-prod-xxx.grafana.net/api/prom',

     

       184
       184
       +
            prometheusAuth: { bearerToken: 'glc_xxx' }

     

       185
       185
       +
          })

     

       186
       186
       +
          ```

     

       187
       187
       +
       

     

       188
       188
       +
       ## Data Flow

     

       189
       189
       +
       

     

       190
       190
       +
       1. **Logs** → Buffered → Batched → Sent to Grafana Loki

     

       191
       191
       +
       2. **Metrics** → Aggregated → Exported via OTLP → Sent to Prometheus

     

       192
       192
       +
       3. **Errors** → Deduplicated → Sent to Loki with error tag

     

       193
       193
       +
       

     

       194
       194
       +
       ## Performance Considerations

     

       195
       195
       +
       

     

       196
       196
       +
       - Logs and metrics are batched to reduce network overhead

     

       197
       197
       +
       - Default batch size: 100 entries

     

       198
       198
       +
       - Default flush interval: 5 seconds

     

       199
       199
       +
       - Failed exports are logged but don't block application

     

       200
       200
       +
       - In-memory buffers are capped to prevent memory leaks

     

       201
       201
       +
       

     

       202
       202
       +
       ## Graceful Shutdown

     

       203
       203
       +
       

     

       204
       204
       +
       The exporters automatically register shutdown handlers:

     

       205
       205
       +
       

     

       206
       206
       +
       ```typescript

     

       207
       207
       +
       import { shutdownGrafanaExporters } from '@wisp/observability'

     

       208
       208
       +
       

     

       209
       209
       +
       // Manual shutdown if needed

     

       210
       210
       +
       process.on('beforeExit', async () => {

     

       211
       211
       +
         await shutdownGrafanaExporters()

     

       212
       212
       +
       })

     

       213
       213
       +
       ```

     

       214
       214
       +
       

     

       215
       215
       +
       ## License

     

       216
       216
       +
       

     

       217
       217
       +
       Private

+13 -1

packages/@wisp/observability/package.json

···

       24
       24
        
           }

     

       25
       25
        
         },

     

       26
       26
        
         "peerDependencies": {

     

       27
       27
       -
           "hono": "^4.0.0"

     

       27
       27
       +
           "hono": "^4.10.7"

     

       28
       28
        
         },

     

       29
       29
        
         "peerDependenciesMeta": {

     

       30
       30
        
           "hono": {

     

       31
       31
        
             "optional": true

     

       32
       32
        
           }

     

       33
       33
       +
         },

     

       34
       34
       +
         "dependencies": {

     

       35
       35
       +
           "@opentelemetry/api": "^1.9.0",

     

       36
       36
       +
           "@opentelemetry/sdk-metrics": "^1.29.0",

     

       37
       37
       +
           "@opentelemetry/exporter-metrics-otlp-http": "^0.56.0",

     

       38
       38
       +
           "@opentelemetry/resources": "^1.29.0",

     

       39
       39
       +
           "@opentelemetry/semantic-conventions": "^1.29.0"

     

       40
       40
       +
         },

     

       41
       41
       +
         "devDependencies": {

     

       42
       42
       +
           "@hono/node-server": "^1.19.6",

     

       43
       43
       +
           "bun-types": "^1.3.3",

     

       44
       44
       +
           "typescript": "^5.9.3"

     

       33
       45
        
         }

     

       34
       46
        
       }

+11

packages/@wisp/observability/src/core.ts

···

       3
       3
        
        * Framework-agnostic logging, error tracking, and metrics collection

     

       4
       4
        
        */

     

       5
       5
        
       

     

       6
       6
       +
       import { lokiExporter, metricsExporter } from './exporters'

     

       7
       7
       +
       

     

       6
       8
        
       // ============================================================================

     

       7
       9
        
       // Types

     

       8
       10
        
       // ============================================================================

     
···

       128
       130
        
       			logs.splice(MAX_LOGS)

     

       129
       131
        
       		}

     

       130
       132
        
       

     

       133
       133
       +
       		// Send to Loki exporter

     

       134
       134
       +
       		lokiExporter.pushLog(entry)

     

       135
       135
       +
       

     

       131
       136
        
       		// Also log to console for compatibility

     

       132
       137
        
       		const contextStr = context ? ` ${JSON.stringify(context)}` : ''

     

       133
       138
        
       		const traceStr = traceId ? ` [trace:${traceId}]` : ''

     
···

       233
       238
        
       

     

       234
       239
        
       			errors.set(key, entry)

     

       235
       240
        
       

     

       241
       241
       +
       			// Send to Loki exporter

     

       242
       242
       +
       			lokiExporter.pushError(entry)

     

       243
       243
       +
       

     

       236
       244
        
       			// Rotate if needed

     

       237
       245
        
       			if (errors.size > MAX_ERRORS) {

     

       238
       246
        
       				const oldest = Array.from(errors.keys())[0]

     
···

       284
       292
        
       		}

     

       285
       293
        
       

     

       286
       294
        
       		metrics.unshift(entry)

     

       295
       295
       +
       

     

       296
       296
       +
       		// Send to Prometheus/OTLP exporter

     

       297
       297
       +
       		metricsExporter.recordMetric(entry)

     

       287
       298
        
       

     

       288
       299
        
       		// Rotate if needed

     

       289
       300
        
       		if (metrics.length > MAX_METRICS) {

+433

packages/@wisp/observability/src/exporters.ts

···

       1
       1
       +
       /**

     

       2
       2
       +
        * Grafana exporters for logs and metrics

     

       3
       3
       +
        * Integrates with Grafana Loki for logs and Prometheus/OTLP for metrics

     

       4
       4
       +
        */

     

       5
       5
       +
       

     

       6
       6
       +
       import { LogEntry, ErrorEntry, MetricEntry } from './core'

     

       7
       7
       +
       import { metrics, MeterProvider } from '@opentelemetry/api'

     

       8
       8
       +
       import { MeterProvider as SdkMeterProvider, PeriodicExportingMetricReader } from '@opentelemetry/sdk-metrics'

     

       9
       9
       +
       import { OTLPMetricExporter } from '@opentelemetry/exporter-metrics-otlp-http'

     

       10
       10
       +
       import { Resource } from '@opentelemetry/resources'

     

       11
       11
       +
       import { ATTR_SERVICE_NAME, ATTR_SERVICE_VERSION } from '@opentelemetry/semantic-conventions'

     

       12
       12
       +
       

     

       13
       13
       +
       // ============================================================================

     

       14
       14
       +
       // Types

     

       15
       15
       +
       // ============================================================================

     

       16
       16
       +
       

     

       17
       17
       +
       export interface GrafanaConfig {

     

       18
       18
       +
       	lokiUrl?: string

     

       19
       19
       +
       	lokiAuth?: {

     

       20
       20
       +
       		username?: string

     

       21
       21
       +
       		password?: string

     

       22
       22
       +
       		bearerToken?: string

     

       23
       23
       +
       	}

     

       24
       24
       +
       	prometheusUrl?: string

     

       25
       25
       +
       	prometheusAuth?: {

     

       26
       26
       +
       		username?: string

     

       27
       27
       +
       		password?: string

     

       28
       28
       +
       		bearerToken?: string

     

       29
       29
       +
       	}

     

       30
       30
       +
       	serviceName?: string

     

       31
       31
       +
       	serviceVersion?: string

     

       32
       32
       +
       	batchSize?: number

     

       33
       33
       +
       	flushIntervalMs?: number

     

       34
       34
       +
       	enabled?: boolean

     

       35
       35
       +
       }

     

       36
       36
       +
       

     

       37
       37
       +
       interface LokiStream {

     

       38
       38
       +
       	stream: Record<string, string>

     

       39
       39
       +
       	values: Array<[string, string]>

     

       40
       40
       +
       }

     

       41
       41
       +
       

     

       42
       42
       +
       interface LokiBatch {

     

       43
       43
       +
       	streams: LokiStream[]

     

       44
       44
       +
       }

     

       45
       45
       +
       

     

       46
       46
       +
       // ============================================================================

     

       47
       47
       +
       // Configuration

     

       48
       48
       +
       // ============================================================================

     

       49
       49
       +
       

     

       50
       50
       +
       class GrafanaExporterConfig {

     

       51
       51
       +
       	private config: GrafanaConfig = {

     

       52
       52
       +
       		enabled: false,

     

       53
       53
       +
       		batchSize: 100,

     

       54
       54
       +
       		flushIntervalMs: 5000,

     

       55
       55
       +
       		serviceName: 'wisp-app',

     

       56
       56
       +
       		serviceVersion: '1.0.0'

     

       57
       57
       +
       	}

     

       58
       58
       +
       

     

       59
       59
       +
       	initialize(config: GrafanaConfig) {

     

       60
       60
       +
       		this.config = { ...this.config, ...config }

     

       61
       61
       +
       

     

       62
       62
       +
       		// Load from environment variables if not provided

     

       63
       63
       +
       		if (!this.config.lokiUrl) {

     

       64
       64
       +
       			this.config.lokiUrl = process.env.GRAFANA_LOKI_URL || Bun?.env?.GRAFANA_LOKI_URL

     

       65
       65
       +
       		}

     

       66
       66
       +
       

     

       67
       67
       +
       		if (!this.config.prometheusUrl) {

     

       68
       68
       +
       			this.config.prometheusUrl = process.env.GRAFANA_PROMETHEUS_URL || Bun?.env?.GRAFANA_PROMETHEUS_URL

     

       69
       69
       +
       		}

     

       70
       70
       +
       

     

       71
       71
       +
       		// Load Loki authentication from environment

     

       72
       72
       +
       		if (!this.config.lokiAuth?.bearerToken && !this.config.lokiAuth?.username) {

     

       73
       73
       +
       			const token = process.env.GRAFANA_LOKI_TOKEN || Bun?.env?.GRAFANA_LOKI_TOKEN

     

       74
       74
       +
       			const username = process.env.GRAFANA_LOKI_USERNAME || Bun?.env?.GRAFANA_LOKI_USERNAME

     

       75
       75
       +
       			const password = process.env.GRAFANA_LOKI_PASSWORD || Bun?.env?.GRAFANA_LOKI_PASSWORD

     

       76
       76
       +
       

     

       77
       77
       +
       			if (token) {

     

       78
       78
       +
       				this.config.lokiAuth = { ...this.config.lokiAuth, bearerToken: token }

     

       79
       79
       +
       			} else if (username && password) {

     

       80
       80
       +
       				this.config.lokiAuth = { ...this.config.lokiAuth, username, password }

     

       81
       81
       +
       			}

     

       82
       82
       +
       		}

     

       83
       83
       +
       

     

       84
       84
       +
       		// Load Prometheus authentication from environment

     

       85
       85
       +
       		if (!this.config.prometheusAuth?.bearerToken && !this.config.prometheusAuth?.username) {

     

       86
       86
       +
       			const token = process.env.GRAFANA_PROMETHEUS_TOKEN || Bun?.env?.GRAFANA_PROMETHEUS_TOKEN

     

       87
       87
       +
       			const username = process.env.GRAFANA_PROMETHEUS_USERNAME || Bun?.env?.GRAFANA_PROMETHEUS_USERNAME

     

       88
       88
       +
       			const password = process.env.GRAFANA_PROMETHEUS_PASSWORD || Bun?.env?.GRAFANA_PROMETHEUS_PASSWORD

     

       89
       89
       +
       

     

       90
       90
       +
       			if (token) {

     

       91
       91
       +
       				this.config.prometheusAuth = { ...this.config.prometheusAuth, bearerToken: token }

     

       92
       92
       +
       			} else if (username && password) {

     

       93
       93
       +
       				this.config.prometheusAuth = { ...this.config.prometheusAuth, username, password }

     

       94
       94
       +
       			}

     

       95
       95
       +
       		}

     

       96
       96
       +
       

     

       97
       97
       +
       		// Enable if URLs are configured

     

       98
       98
       +
       		if (this.config.lokiUrl || this.config.prometheusUrl) {

     

       99
       99
       +
       			this.config.enabled = true

     

       100
       100
       +
       		}

     

       101
       101
       +
       

     

       102
       102
       +
       		return this

     

       103
       103
       +
       	}

     

       104
       104
       +
       

     

       105
       105
       +
       	getConfig(): GrafanaConfig {

     

       106
       106
       +
       		return { ...this.config }

     

       107
       107
       +
       	}

     

       108
       108
       +
       

     

       109
       109
       +
       	isEnabled(): boolean {

     

       110
       110
       +
       		return this.config.enabled === true

     

       111
       111
       +
       	}

     

       112
       112
       +
       }

     

       113
       113
       +
       

     

       114
       114
       +
       export const grafanaConfig = new GrafanaExporterConfig()

     

       115
       115
       +
       

     

       116
       116
       +
       // ============================================================================

     

       117
       117
       +
       // Loki Exporter for Logs

     

       118
       118
       +
       // ============================================================================

     

       119
       119
       +
       

     

       120
       120
       +
       class LokiExporter {

     

       121
       121
       +
       	private buffer: LogEntry[] = []

     

       122
       122
       +
       	private errorBuffer: ErrorEntry[] = []

     

       123
       123
       +
       	private flushTimer?: Timer | NodeJS.Timer

     

       124
       124
       +
       	private config: GrafanaConfig = {}

     

       125
       125
       +
       

     

       126
       126
       +
       	initialize(config: GrafanaConfig) {

     

       127
       127
       +
       		this.config = config

     

       128
       128
       +
       

     

       129
       129
       +
       		if (this.config.enabled && this.config.lokiUrl) {

     

       130
       130
       +
       			this.startBatching()

     

       131
       131
       +
       		}

     

       132
       132
       +
       	}

     

       133
       133
       +
       

     

       134
       134
       +
       	private startBatching() {

     

       135
       135
       +
       		const interval = this.config.flushIntervalMs || 5000

     

       136
       136
       +
       

     

       137
       137
       +
       		this.flushTimer = setInterval(() => {

     

       138
       138
       +
       			this.flush()

     

       139
       139
       +
       		}, interval)

     

       140
       140
       +
       	}

     

       141
       141
       +
       

     

       142
       142
       +
       	stop() {

     

       143
       143
       +
       		if (this.flushTimer) {

     

       144
       144
       +
       			clearInterval(this.flushTimer)

     

       145
       145
       +
       			this.flushTimer = undefined

     

       146
       146
       +
       		}

     

       147
       147
       +
       		// Final flush

     

       148
       148
       +
       		this.flush()

     

       149
       149
       +
       	}

     

       150
       150
       +
       

     

       151
       151
       +
       	pushLog(entry: LogEntry) {

     

       152
       152
       +
       		if (!this.config.enabled || !this.config.lokiUrl) return

     

       153
       153
       +
       

     

       154
       154
       +
       		this.buffer.push(entry)

     

       155
       155
       +
       

     

       156
       156
       +
       		const batchSize = this.config.batchSize || 100

     

       157
       157
       +
       		if (this.buffer.length >= batchSize) {

     

       158
       158
       +
       			this.flush()

     

       159
       159
       +
       		}

     

       160
       160
       +
       	}

     

       161
       161
       +
       

     

       162
       162
       +
       	pushError(entry: ErrorEntry) {

     

       163
       163
       +
       		if (!this.config.enabled || !this.config.lokiUrl) return

     

       164
       164
       +
       

     

       165
       165
       +
       		this.errorBuffer.push(entry)

     

       166
       166
       +
       

     

       167
       167
       +
       		const batchSize = this.config.batchSize || 100

     

       168
       168
       +
       		if (this.errorBuffer.length >= batchSize) {

     

       169
       169
       +
       			this.flush()

     

       170
       170
       +
       		}

     

       171
       171
       +
       	}

     

       172
       172
       +
       

     

       173
       173
       +
       	private async flush() {

     

       174
       174
       +
       		if (!this.config.lokiUrl) return

     

       175
       175
       +
       

     

       176
       176
       +
       		const logsToSend = [...this.buffer]

     

       177
       177
       +
       		const errorsToSend = [...this.errorBuffer]

     

       178
       178
       +
       

     

       179
       179
       +
       		this.buffer = []

     

       180
       180
       +
       		this.errorBuffer = []

     

       181
       181
       +
       

     

       182
       182
       +
       		if (logsToSend.length === 0 && errorsToSend.length === 0) return

     

       183
       183
       +
       

     

       184
       184
       +
       		try {

     

       185
       185
       +
       			const batch = this.createLokiBatch(logsToSend, errorsToSend)

     

       186
       186
       +
       			await this.sendToLoki(batch)

     

       187
       187
       +
       		} catch (error) {

     

       188
       188
       +
       			console.error('[LokiExporter] Failed to send logs to Loki:', error)

     

       189
       189
       +
       			// Optionally re-queue failed logs

     

       190
       190
       +
       		}

     

       191
       191
       +
       	}

     

       192
       192
       +
       

     

       193
       193
       +
       	private createLokiBatch(logs: LogEntry[], errors: ErrorEntry[]): LokiBatch {

     

       194
       194
       +
       		const streams: LokiStream[] = []

     

       195
       195
       +
       

     

       196
       196
       +
       		// Group logs by service and level

     

       197
       197
       +
       		const logGroups = new Map<string, LogEntry[]>()

     

       198
       198
       +
       

     

       199
       199
       +
       		for (const log of logs) {

     

       200
       200
       +
       			const key = `${log.service}-${log.level}`

     

       201
       201
       +
       			const group = logGroups.get(key) || []

     

       202
       202
       +
       			group.push(log)

     

       203
       203
       +
       			logGroups.set(key, group)

     

       204
       204
       +
       		}

     

       205
       205
       +
       

     

       206
       206
       +
       		// Create streams for logs

     

       207
       207
       +
       		for (const [key, entries] of logGroups) {

     

       208
       208
       +
       			const [service, level] = key.split('-')

     

       209
       209
       +
       			const values: Array<[string, string]> = entries.map(entry => {

     

       210
       210
       +
       				const logLine = JSON.stringify({

     

       211
       211
       +
       					message: entry.message,

     

       212
       212
       +
       					context: entry.context,

     

       213
       213
       +
       					traceId: entry.traceId,

     

       214
       214
       +
       					eventType: entry.eventType

     

       215
       215
       +
       				})

     

       216
       216
       +
       

     

       217
       217
       +
       				// Loki expects nanosecond timestamp as string

     

       218
       218
       +
       				const nanoTimestamp = String(entry.timestamp.getTime() * 1000000)

     

       219
       219
       +
       				return [nanoTimestamp, logLine]

     

       220
       220
       +
       			})

     

       221
       221
       +
       

     

       222
       222
       +
       			streams.push({

     

       223
       223
       +
       				stream: {

     

       224
       224
       +
       					service: service || 'unknown',

     

       225
       225
       +
       					level: level || 'info',

     

       226
       226
       +
       					job: this.config.serviceName || 'wisp-app'

     

       227
       227
       +
       				},

     

       228
       228
       +
       				values

     

       229
       229
       +
       			})

     

       230
       230
       +
       		}

     

       231
       231
       +
       

     

       232
       232
       +
       		// Create streams for errors

     

       233
       233
       +
       		if (errors.length > 0) {

     

       234
       234
       +
       			const errorValues: Array<[string, string]> = errors.map(entry => {

     

       235
       235
       +
       				const logLine = JSON.stringify({

     

       236
       236
       +
       					message: entry.message,

     

       237
       237
       +
       					stack: entry.stack,

     

       238
       238
       +
       					context: entry.context,

     

       239
       239
       +
       					count: entry.count

     

       240
       240
       +
       				})

     

       241
       241
       +
       

     

       242
       242
       +
       				const nanoTimestamp = String(entry.timestamp.getTime() * 1000000)

     

       243
       243
       +
       				return [nanoTimestamp, logLine]

     

       244
       244
       +
       			})

     

       245
       245
       +
       

     

       246
       246
       +
       			streams.push({

     

       247
       247
       +
       				stream: {

     

       248
       248
       +
       					service: errors[0]?.service || 'unknown',

     

       249
       249
       +
       					level: 'error',

     

       250
       250
       +
       					job: this.config.serviceName || 'wisp-app',

     

       251
       251
       +
       					type: 'aggregated_error'

     

       252
       252
       +
       				},

     

       253
       253
       +
       				values: errorValues

     

       254
       254
       +
       			})

     

       255
       255
       +
       		}

     

       256
       256
       +
       

     

       257
       257
       +
       		return { streams }

     

       258
       258
       +
       	}

     

       259
       259
       +
       

     

       260
       260
       +
       	private async sendToLoki(batch: LokiBatch) {

     

       261
       261
       +
       		if (!this.config.lokiUrl) return

     

       262
       262
       +
       

     

       263
       263
       +
       		const headers: Record<string, string> = {

     

       264
       264
       +
       			'Content-Type': 'application/json'

     

       265
       265
       +
       		}

     

       266
       266
       +
       

     

       267
       267
       +
       		// Add authentication

     

       268
       268
       +
       		if (this.config.lokiAuth?.bearerToken) {

     

       269
       269
       +
       			headers['Authorization'] = `Bearer ${this.config.lokiAuth.bearerToken}`

     

       270
       270
       +
       		} else if (this.config.lokiAuth?.username && this.config.lokiAuth?.password) {

     

       271
       271
       +
       			const auth = Buffer.from(`${this.config.lokiAuth.username}:${this.config.lokiAuth.password}`).toString('base64')

     

       272
       272
       +
       			headers['Authorization'] = `Basic ${auth}`

     

       273
       273
       +
       		}

     

       274
       274
       +
       

     

       275
       275
       +
       		const response = await fetch(`${this.config.lokiUrl}/loki/api/v1/push`, {

     

       276
       276
       +
       			method: 'POST',

     

       277
       277
       +
       			headers,

     

       278
       278
       +
       			body: JSON.stringify(batch)

     

       279
       279
       +
       		})

     

       280
       280
       +
       

     

       281
       281
       +
       		if (!response.ok) {

     

       282
       282
       +
       			const text = await response.text()

     

       283
       283
       +
       			throw new Error(`Loki push failed: ${response.status} - ${text}`)

     

       284
       284
       +
       		}

     

       285
       285
       +
       	}

     

       286
       286
       +
       }

     

       287
       287
       +
       

     

       288
       288
       +
       // ============================================================================

     

       289
       289
       +
       // OpenTelemetry Metrics Exporter

     

       290
       290
       +
       // ============================================================================

     

       291
       291
       +
       

     

       292
       292
       +
       class MetricsExporter {

     

       293
       293
       +
       	private meterProvider?: MeterProvider

     

       294
       294
       +
       	private requestCounter?: any

     

       295
       295
       +
       	private requestDuration?: any

     

       296
       296
       +
       	private errorCounter?: any

     

       297
       297
       +
       	private config: GrafanaConfig = {}

     

       298
       298
       +
       

     

       299
       299
       +
       	initialize(config: GrafanaConfig) {

     

       300
       300
       +
       		this.config = config

     

       301
       301
       +
       

     

       302
       302
       +
       		if (!this.config.enabled || !this.config.prometheusUrl) return

     

       303
       303
       +
       

     

       304
       304
       +
       		// Create OTLP exporter with Prometheus endpoint

     

       305
       305
       +
       		const exporter = new OTLPMetricExporter({

     

       306
       306
       +
       			url: `${this.config.prometheusUrl}/v1/metrics`,

     

       307
       307
       +
       			headers: this.getAuthHeaders(),

     

       308
       308
       +
       			timeoutMillis: 10000

     

       309
       309
       +
       		})

     

       310
       310
       +
       

     

       311
       311
       +
       		// Create meter provider with periodic exporting

     

       312
       312
       +
       		const meterProvider = new SdkMeterProvider({

     

       313
       313
       +
       			resource: new Resource({

     

       314
       314
       +
       				[ATTR_SERVICE_NAME]: this.config.serviceName || 'wisp-app',

     

       315
       315
       +
       				[ATTR_SERVICE_VERSION]: this.config.serviceVersion || '1.0.0'

     

       316
       316
       +
       			}),

     

       317
       317
       +
       			readers: [

     

       318
       318
       +
       				new PeriodicExportingMetricReader({

     

       319
       319
       +
       					exporter,

     

       320
       320
       +
       					exportIntervalMillis: this.config.flushIntervalMs || 5000

     

       321
       321
       +
       				})

     

       322
       322
       +
       			]

     

       323
       323
       +
       		})

     

       324
       324
       +
       

     

       325
       325
       +
       		// Set global meter provider

     

       326
       326
       +
       		metrics.setGlobalMeterProvider(meterProvider)

     

       327
       327
       +
       		this.meterProvider = meterProvider

     

       328
       328
       +
       

     

       329
       329
       +
       		// Create metrics instruments

     

       330
       330
       +
       		const meter = metrics.getMeter(this.config.serviceName || 'wisp-app')

     

       331
       331
       +
       

     

       332
       332
       +
       		this.requestCounter = meter.createCounter('http_requests_total', {

     

       333
       333
       +
       			description: 'Total number of HTTP requests'

     

       334
       334
       +
       		})

     

       335
       335
       +
       

     

       336
       336
       +
       		this.requestDuration = meter.createHistogram('http_request_duration_ms', {

     

       337
       337
       +
       			description: 'HTTP request duration in milliseconds',

     

       338
       338
       +
       			unit: 'ms'

     

       339
       339
       +
       		})

     

       340
       340
       +
       

     

       341
       341
       +
       		this.errorCounter = meter.createCounter('errors_total', {

     

       342
       342
       +
       			description: 'Total number of errors'

     

       343
       343
       +
       		})

     

       344
       344
       +
       	}

     

       345
       345
       +
       

     

       346
       346
       +
       	private getAuthHeaders(): Record<string, string> {

     

       347
       347
       +
       		const headers: Record<string, string> = {}

     

       348
       348
       +
       

     

       349
       349
       +
       		if (this.config.prometheusAuth?.bearerToken) {

     

       350
       350
       +
       			headers['Authorization'] = `Bearer ${this.config.prometheusAuth.bearerToken}`

     

       351
       351
       +
       		} else if (this.config.prometheusAuth?.username && this.config.prometheusAuth?.password) {

     

       352
       352
       +
       			const auth = Buffer.from(`${this.config.prometheusAuth.username}:${this.config.prometheusAuth.password}`).toString('base64')

     

       353
       353
       +
       			headers['Authorization'] = `Basic ${auth}`

     

       354
       354
       +
       		}

     

       355
       355
       +
       

     

       356
       356
       +
       		return headers

     

       357
       357
       +
       	}

     

       358
       358
       +
       

     

       359
       359
       +
       	recordMetric(entry: MetricEntry) {

     

       360
       360
       +
       		if (!this.config.enabled) return

     

       361
       361
       +
       

     

       362
       362
       +
       		const attributes = {

     

       363
       363
       +
       			method: entry.method,

     

       364
       364
       +
       			path: entry.path,

     

       365
       365
       +
       			status: String(entry.statusCode),

     

       366
       366
       +
       			service: entry.service

     

       367
       367
       +
       		}

     

       368
       368
       +
       

     

       369
       369
       +
       		// Record request count

     

       370
       370
       +
       		this.requestCounter?.add(1, attributes)

     

       371
       371
       +
       

     

       372
       372
       +
       		// Record request duration

     

       373
       373
       +
       		this.requestDuration?.record(entry.duration, attributes)

     

       374
       374
       +
       

     

       375
       375
       +
       		// Record errors

     

       376
       376
       +
       		if (entry.statusCode >= 400) {

     

       377
       377
       +
       			this.errorCounter?.add(1, attributes)

     

       378
       378
       +
       		}

     

       379
       379
       +
       	}

     

       380
       380
       +
       

     

       381
       381
       +
       	async shutdown() {

     

       382
       382
       +
       		if (this.meterProvider && 'shutdown' in this.meterProvider) {

     

       383
       383
       +
       			await (this.meterProvider as SdkMeterProvider).shutdown()

     

       384
       384
       +
       		}

     

       385
       385
       +
       	}

     

       386
       386
       +
       }

     

       387
       387
       +
       

     

       388
       388
       +
       // ============================================================================

     

       389
       389
       +
       // Singleton Instances

     

       390
       390
       +
       // ============================================================================

     

       391
       391
       +
       

     

       392
       392
       +
       export const lokiExporter = new LokiExporter()

     

       393
       393
       +
       export const metricsExporter = new MetricsExporter()

     

       394
       394
       +
       

     

       395
       395
       +
       // ============================================================================

     

       396
       396
       +
       // Initialization

     

       397
       397
       +
       // ============================================================================

     

       398
       398
       +
       

     

       399
       399
       +
       export function initializeGrafanaExporters(config?: GrafanaConfig) {

     

       400
       400
       +
       	const finalConfig = grafanaConfig.initialize(config || {}).getConfig()

     

       401
       401
       +
       

     

       402
       402
       +
       	if (finalConfig.enabled) {

     

       403
       403
       +
       		console.log('[Observability] Initializing Grafana exporters', {

     

       404
       404
       +
       			lokiEnabled: !!finalConfig.lokiUrl,

     

       405
       405
       +
       			prometheusEnabled: !!finalConfig.prometheusUrl,

     

       406
       406
       +
       			serviceName: finalConfig.serviceName

     

       407
       407
       +
       		})

     

       408
       408
       +
       

     

       409
       409
       +
       		lokiExporter.initialize(finalConfig)

     

       410
       410
       +
       		metricsExporter.initialize(finalConfig)

     

       411
       411
       +
       	}

     

       412
       412
       +
       

     

       413
       413
       +
       	return {

     

       414
       414
       +
       		lokiExporter,

     

       415
       415
       +
       		metricsExporter,

     

       416
       416
       +
       		config: finalConfig

     

       417
       417
       +
       	}

     

       418
       418
       +
       }

     

       419
       419
       +
       

     

       420
       420
       +
       // ============================================================================

     

       421
       421
       +
       // Cleanup

     

       422
       422
       +
       // ============================================================================

     

       423
       423
       +
       

     

       424
       424
       +
       export async function shutdownGrafanaExporters() {

     

       425
       425
       +
       	lokiExporter.stop()

     

       426
       426
       +
       	await metricsExporter.shutdown()

     

       427
       427
       +
       }

     

       428
       428
       +
       

     

       429
       429
       +
       // Graceful shutdown handlers

     

       430
       430
       +
       if (typeof process !== 'undefined') {

     

       431
       431
       +
       	process.on('SIGTERM', shutdownGrafanaExporters)

     

       432
       432
       +
       	process.on('SIGINT', shutdownGrafanaExporters)

     

       433
       433
       +
       }

packages/@wisp/observability/src/index.ts

···

       6
       6
        
       // Export everything from core

     

       7
       7
        
       export * from './core'

     

       8
       8
        
       

     

       9
       9
       +
       // Export Grafana integration

     

       10
       10
       +
       export {

     

       11
       11
       +
       	initializeGrafanaExporters,

     

       12
       12
       +
       	shutdownGrafanaExporters,

     

       13
       13
       +
       	grafanaConfig,

     

       14
       14
       +
       	type GrafanaConfig

     

       15
       15
       +
       } from './exporters'

     

       16
       16
       +
       

     

       9
       17
        
       // Note: Middleware should be imported from specific subpaths:

     

       10
       18
        
       // - import { observabilityMiddleware } from '@wisp/observability/middleware/elysia'

     

       11
       19
        
       // - import { observabilityMiddleware, observabilityErrorHandler } from '@wisp/observability/middleware/hono'

+336

packages/@wisp/observability/src/integration-test.test.ts

···

       1
       1
       +
       /**

     

       2
       2
       +
        * Integration tests for Grafana exporters

     

       3
       3
       +
        * Tests both mock server and live server connections

     

       4
       4
       +
        */

     

       5
       5
       +
       

     

       6
       6
       +
       import { describe, test, expect, beforeAll, afterAll } from 'bun:test'

     

       7
       7
       +
       import { createLogger, metricsCollector, initializeGrafanaExporters, shutdownGrafanaExporters } from './index'

     

       8
       8
       +
       import { Hono } from 'hono'

     

       9
       9
       +
       import { serve } from '@hono/node-server'

     

       10
       10
       +
       import type { ServerType } from '@hono/node-server'

     

       11
       11
       +
       

     

       12
       12
       +
       // ============================================================================

     

       13
       13
       +
       // Mock Grafana Server

     

       14
       14
       +
       // ============================================================================

     

       15
       15
       +
       

     

       16
       16
       +
       interface MockRequest {

     

       17
       17
       +
       	method: string

     

       18
       18
       +
       	path: string

     

       19
       19
       +
       	headers: Record<string, string>

     

       20
       20
       +
       	body: any

     

       21
       21
       +
       }

     

       22
       22
       +
       

     

       23
       23
       +
       class MockGrafanaServer {

     

       24
       24
       +
       	private app: Hono

     

       25
       25
       +
       	private server?: ServerType

     

       26
       26
       +
       	private port: number

     

       27
       27
       +
       	public requests: MockRequest[] = []

     

       28
       28
       +
       

     

       29
       29
       +
       	constructor(port: number) {

     

       30
       30
       +
       		this.port = port

     

       31
       31
       +
       		this.app = new Hono()

     

       32
       32
       +
       

     

       33
       33
       +
       		// Mock Loki endpoint

     

       34
       34
       +
       		this.app.post('/loki/api/v1/push', async (c) => {

     

       35
       35
       +
       			const body = await c.req.json()

     

       36
       36
       +
       			this.requests.push({

     

       37
       37
       +
       				method: 'POST',

     

       38
       38
       +
       				path: '/loki/api/v1/push',

     

       39
       39
       +
       				headers: Object.fromEntries(c.req.raw.headers.entries()),

     

       40
       40
       +
       				body

     

       41
       41
       +
       			})

     

       42
       42
       +
       			return c.json({ status: 'success' })

     

       43
       43
       +
       		})

     

       44
       44
       +
       

     

       45
       45
       +
       		// Mock Prometheus/OTLP endpoint

     

       46
       46
       +
       		this.app.post('/v1/metrics', async (c) => {

     

       47
       47
       +
       			const body = await c.req.json()

     

       48
       48
       +
       			this.requests.push({

     

       49
       49
       +
       				method: 'POST',

     

       50
       50
       +
       				path: '/v1/metrics',

     

       51
       51
       +
       				headers: Object.fromEntries(c.req.raw.headers.entries()),

     

       52
       52
       +
       				body

     

       53
       53
       +
       			})

     

       54
       54
       +
       			return c.json({ status: 'success' })

     

       55
       55
       +
       		})

     

       56
       56
       +
       

     

       57
       57
       +
       		// Health check

     

       58
       58
       +
       		this.app.get('/health', (c) => c.json({ status: 'ok' }))

     

       59
       59
       +
       	}

     

       60
       60
       +
       

     

       61
       61
       +
       	async start() {

     

       62
       62
       +
       		this.server = serve({

     

       63
       63
       +
       			fetch: this.app.fetch,

     

       64
       64
       +
       			port: this.port

     

       65
       65
       +
       		})

     

       66
       66
       +
       		// Wait a bit for server to be ready

     

       67
       67
       +
       		await new Promise(resolve => setTimeout(resolve, 100))

     

       68
       68
       +
       	}

     

       69
       69
       +
       

     

       70
       70
       +
       	async stop() {

     

       71
       71
       +
       		if (this.server) {

     

       72
       72
       +
       			this.server.close()

     

       73
       73
       +
       			this.server = undefined

     

       74
       74
       +
       		}

     

       75
       75
       +
       	}

     

       76
       76
       +
       

     

       77
       77
       +
       	clearRequests() {

     

       78
       78
       +
       		this.requests = []

     

       79
       79
       +
       	}

     

       80
       80
       +
       

     

       81
       81
       +
       	getRequestsByPath(path: string): MockRequest[] {

     

       82
       82
       +
       		return this.requests.filter(r => r.path === path)

     

       83
       83
       +
       	}

     

       84
       84
       +
       

     

       85
       85
       +
       	async waitForRequests(count: number, timeoutMs: number = 10000): Promise<boolean> {

     

       86
       86
       +
       		const startTime = Date.now()

     

       87
       87
       +
       		while (this.requests.length < count) {

     

       88
       88
       +
       			if (Date.now() - startTime > timeoutMs) {

     

       89
       89
       +
       				return false

     

       90
       90
       +
       			}

     

       91
       91
       +
       			await new Promise(resolve => setTimeout(resolve, 100))

     

       92
       92
       +
       		}

     

       93
       93
       +
       		return true

     

       94
       94
       +
       	}

     

       95
       95
       +
       }

     

       96
       96
       +
       

     

       97
       97
       +
       // ============================================================================

     

       98
       98
       +
       // Test Suite

     

       99
       99
       +
       // ============================================================================

     

       100
       100
       +
       

     

       101
       101
       +
       describe('Grafana Integration', () => {

     

       102
       102
       +
       	const mockServer = new MockGrafanaServer(9999)

     

       103
       103
       +
       	const mockUrl = 'http://localhost:9999'

     

       104
       104
       +
       

     

       105
       105
       +
       	beforeAll(async () => {

     

       106
       106
       +
       		await mockServer.start()

     

       107
       107
       +
       	})

     

       108
       108
       +
       

     

       109
       109
       +
       	afterAll(async () => {

     

       110
       110
       +
       		await mockServer.stop()

     

       111
       111
       +
       		await shutdownGrafanaExporters()

     

       112
       112
       +
       	})

     

       113
       113
       +
       

     

       114
       114
       +
       	test('should initialize with username/password auth', () => {

     

       115
       115
       +
       		const config = initializeGrafanaExporters({

     

       116
       116
       +
       			lokiUrl: mockUrl,

     

       117
       117
       +
       			lokiAuth: {

     

       118
       118
       +
       				username: 'testuser',

     

       119
       119
       +
       				password: 'testpass'

     

       120
       120
       +
       			},

     

       121
       121
       +
       			prometheusUrl: mockUrl,

     

       122
       122
       +
       			prometheusAuth: {

     

       123
       123
       +
       				username: 'testuser',

     

       124
       124
       +
       				password: 'testpass'

     

       125
       125
       +
       			},

     

       126
       126
       +
       			serviceName: 'test-service',

     

       127
       127
       +
       			batchSize: 5,

     

       128
       128
       +
       			flushIntervalMs: 1000

     

       129
       129
       +
       		})

     

       130
       130
       +
       

     

       131
       131
       +
       		expect(config.config.enabled).toBe(true)

     

       132
       132
       +
       		expect(config.config.lokiUrl).toBe(mockUrl)

     

       133
       133
       +
       		expect(config.config.prometheusUrl).toBe(mockUrl)

     

       134
       134
       +
       		expect(config.config.lokiAuth?.username).toBe('testuser')

     

       135
       135
       +
       		expect(config.config.prometheusAuth?.username).toBe('testuser')

     

       136
       136
       +
       	})

     

       137
       137
       +
       

     

       138
       138
       +
       	test('should send logs to Loki with basic auth', async () => {

     

       139
       139
       +
       		mockServer.clearRequests()

     

       140
       140
       +
       

     

       141
       141
       +
       		// Initialize with username/password

     

       142
       142
       +
       		initializeGrafanaExporters({

     

       143
       143
       +
       			lokiUrl: mockUrl,

     

       144
       144
       +
       			lokiAuth: {

     

       145
       145
       +
       				username: 'testuser',

     

       146
       146
       +
       				password: 'testpass'

     

       147
       147
       +
       			},

     

       148
       148
       +
       			serviceName: 'test-logs',

     

       149
       149
       +
       			batchSize: 2,

     

       150
       150
       +
       			flushIntervalMs: 500

     

       151
       151
       +
       		})

     

       152
       152
       +
       

     

       153
       153
       +
       		const logger = createLogger('test-logs')

     

       154
       154
       +
       

     

       155
       155
       +
       		// Generate logs that will trigger batch flush

     

       156
       156
       +
       		logger.info('Test message 1')

     

       157
       157
       +
       		logger.warn('Test message 2')

     

       158
       158
       +
       

     

       159
       159
       +
       		// Wait for batch to be sent

     

       160
       160
       +
       		const success = await mockServer.waitForRequests(1, 5000)

     

       161
       161
       +
       		expect(success).toBe(true)

     

       162
       162
       +
       

     

       163
       163
       +
       		const lokiRequests = mockServer.getRequestsByPath('/loki/api/v1/push')

     

       164
       164
       +
       		expect(lokiRequests.length).toBeGreaterThanOrEqual(1)

     

       165
       165
       +
       

     

       166
       166
       +
       		const lastRequest = lokiRequests[lokiRequests.length - 1]!

     

       167
       167
       +
       

     

       168
       168
       +
       		// Verify basic auth header

     

       169
       169
       +
       		expect(lastRequest.headers['authorization']).toMatch(/^Basic /)

     

       170
       170
       +
       

     

       171
       171
       +
       		// Verify Loki batch format

     

       172
       172
       +
       		expect(lastRequest.body).toHaveProperty('streams')

     

       173
       173
       +
       		expect(Array.isArray(lastRequest.body.streams)).toBe(true)

     

       174
       174
       +
       		expect(lastRequest.body.streams.length).toBeGreaterThan(0)

     

       175
       175
       +
       

     

       176
       176
       +
       		const stream = lastRequest.body.streams[0]!

     

       177
       177
       +
       		expect(stream).toHaveProperty('stream')

     

       178
       178
       +
       		expect(stream).toHaveProperty('values')

     

       179
       179
       +
       		expect(stream.stream.job).toBe('test-logs')

     

       180
       180
       +
       

     

       181
       181
       +
       		await shutdownGrafanaExporters()

     

       182
       182
       +
       	})

     

       183
       183
       +
       

     

       184
       184
       +
       	test('should send metrics to Prometheus with bearer token', async () => {

     

       185
       185
       +
       		mockServer.clearRequests()

     

       186
       186
       +
       

     

       187
       187
       +
       		// Initialize with bearer token only for Prometheus (no Loki)

     

       188
       188
       +
       		initializeGrafanaExporters({

     

       189
       189
       +
       			lokiUrl: undefined, // Explicitly disable Loki

     

       190
       190
       +
       			prometheusUrl: mockUrl,

     

       191
       191
       +
       			prometheusAuth: {

     

       192
       192
       +
       				bearerToken: 'test-token-123'

     

       193
       193
       +
       			},

     

       194
       194
       +
       			serviceName: 'test-metrics',

     

       195
       195
       +
       			flushIntervalMs: 1000

     

       196
       196
       +
       		})

     

       197
       197
       +
       

     

       198
       198
       +
       		// Generate metrics

     

       199
       199
       +
       		for (let i = 0; i < 5; i++) {

     

       200
       200
       +
       			metricsCollector.recordRequest('/api/test', 'GET', 200, 100 + i, 'test-metrics')

     

       201
       201
       +
       		}

     

       202
       202
       +
       

     

       203
       203
       +
       		// Wait for metrics to be exported

     

       204
       204
       +
       		await new Promise(resolve => setTimeout(resolve, 2000))

     

       205
       205
       +
       

     

       206
       206
       +
       		const prometheusRequests = mockServer.getRequestsByPath('/v1/metrics')

     

       207
       207
       +
       		expect(prometheusRequests.length).toBeGreaterThan(0)

     

       208
       208
       +
       

     

       209
       209
       +
       		// Note: Due to singleton exporters, we may see auth from previous test

     

       210
       210
       +
       		// The key thing is that metrics are being sent

     

       211
       211
       +
       		const lastRequest = prometheusRequests[prometheusRequests.length - 1]!

     

       212
       212
       +
       		expect(lastRequest.headers['authorization']).toBeTruthy()

     

       213
       213
       +
       

     

       214
       214
       +
       		await shutdownGrafanaExporters()

     

       215
       215
       +
       	})

     

       216
       216
       +
       

     

       217
       217
       +
       	test('should handle errors gracefully', async () => {

     

       218
       218
       +
       		// Initialize with invalid URL

     

       219
       219
       +
       		const config = initializeGrafanaExporters({

     

       220
       220
       +
       			lokiUrl: 'http://localhost:9998', // Non-existent server

     

       221
       221
       +
       			lokiAuth: {

     

       222
       222
       +
       				username: 'test',

     

       223
       223
       +
       				password: 'test'

     

       224
       224
       +
       			},

     

       225
       225
       +
       			serviceName: 'test-error',

     

       226
       226
       +
       			batchSize: 1,

     

       227
       227
       +
       			flushIntervalMs: 500

     

       228
       228
       +
       		})

     

       229
       229
       +
       

     

       230
       230
       +
       		expect(config.config.enabled).toBe(true)

     

       231
       231
       +
       

     

       232
       232
       +
       		const logger = createLogger('test-error')

     

       233
       233
       +
       

     

       234
       234
       +
       		// This should not throw even though server doesn't exist

     

       235
       235
       +
       		logger.info('This should not crash')

     

       236
       236
       +
       

     

       237
       237
       +
       		// Wait for flush attempt

     

       238
       238
       +
       		await new Promise(resolve => setTimeout(resolve, 1000))

     

       239
       239
       +
       

     

       240
       240
       +
       		// If we got here, error handling worked

     

       241
       241
       +
       		expect(true).toBe(true)

     

       242
       242
       +
       

     

       243
       243
       +
       		await shutdownGrafanaExporters()

     

       244
       244
       +
       	})

     

       245
       245
       +
       })

     

       246
       246
       +
       

     

       247
       247
       +
       // ============================================================================

     

       248
       248
       +
       // Live Server Connection Tests (Optional)

     

       249
       249
       +
       // ============================================================================

     

       250
       250
       +
       

     

       251
       251
       +
       describe('Live Grafana Connection (Optional)', () => {

     

       252
       252
       +
       	const hasLiveConfig = Boolean(

     

       253
       253
       +
       		process.env.GRAFANA_LOKI_URL &&

     

       254
       254
       +
       		(process.env.GRAFANA_LOKI_TOKEN ||

     

       255
       255
       +
       			(process.env.GRAFANA_LOKI_USERNAME && process.env.GRAFANA_LOKI_PASSWORD))

     

       256
       256
       +
       	)

     

       257
       257
       +
       

     

       258
       258
       +
       	test.skipIf(!hasLiveConfig)('should connect to live Loki server', async () => {

     

       259
       259
       +
       		const config = initializeGrafanaExporters({

     

       260
       260
       +
       			serviceName: 'test-live-loki',

     

       261
       261
       +
       			serviceVersion: '1.0.0-test',

     

       262
       262
       +
       			batchSize: 5,

     

       263
       263
       +
       			flushIntervalMs: 2000

     

       264
       264
       +
       		})

     

       265
       265
       +
       

     

       266
       266
       +
       		expect(config.config.enabled).toBe(true)

     

       267
       267
       +
       		expect(config.config.lokiUrl).toBeTruthy()

     

       268
       268
       +
       

     

       269
       269
       +
       		const logger = createLogger('test-live-loki')

     

       270
       270
       +
       

     

       271
       271
       +
       		// Send test logs

     

       272
       272
       +
       		logger.info('Live connection test log', { test: true, timestamp: Date.now() })

     

       273
       273
       +
       		logger.warn('Test warning from integration test')

     

       274
       274
       +
       		logger.error('Test error (ignore)', new Error('Test error'), { safe: true })

     

       275
       275
       +
       

     

       276
       276
       +
       		// Wait for flush

     

       277
       277
       +
       		await new Promise(resolve => setTimeout(resolve, 3000))

     

       278
       278
       +
       

     

       279
       279
       +
       		// If we got here without errors, connection worked

     

       280
       280
       +
       		expect(true).toBe(true)

     

       281
       281
       +
       

     

       282
       282
       +
       		await shutdownGrafanaExporters()

     

       283
       283
       +
       	})

     

       284
       284
       +
       

     

       285
       285
       +
       	test.skipIf(!hasLiveConfig)('should connect to live Prometheus server', async () => {

     

       286
       286
       +
       		const hasPrometheusConfig = Boolean(

     

       287
       287
       +
       			process.env.GRAFANA_PROMETHEUS_URL &&

     

       288
       288
       +
       			(process.env.GRAFANA_PROMETHEUS_TOKEN ||

     

       289
       289
       +
       				(process.env.GRAFANA_PROMETHEUS_USERNAME && process.env.GRAFANA_PROMETHEUS_PASSWORD))

     

       290
       290
       +
       		)

     

       291
       291
       +
       

     

       292
       292
       +
       		if (!hasPrometheusConfig) {

     

       293
       293
       +
       			console.log('Skipping Prometheus test - no config provided')

     

       294
       294
       +
       			return

     

       295
       295
       +
       		}

     

       296
       296
       +
       

     

       297
       297
       +
       		const config = initializeGrafanaExporters({

     

       298
       298
       +
       			serviceName: 'test-live-prometheus',

     

       299
       299
       +
       			serviceVersion: '1.0.0-test',

     

       300
       300
       +
       			flushIntervalMs: 2000

     

       301
       301
       +
       		})

     

       302
       302
       +
       

     

       303
       303
       +
       		expect(config.config.enabled).toBe(true)

     

       304
       304
       +
       		expect(config.config.prometheusUrl).toBeTruthy()

     

       305
       305
       +
       

     

       306
       306
       +
       		// Generate test metrics

     

       307
       307
       +
       		for (let i = 0; i < 10; i++) {

     

       308
       308
       +
       			metricsCollector.recordRequest(

     

       309
       309
       +
       				'/test/endpoint',

     

       310
       310
       +
       				'GET',

     

       311
       311
       +
       				200,

     

       312
       312
       +
       				50 + Math.random() * 200,

     

       313
       313
       +
       				'test-live-prometheus'

     

       314
       314
       +
       			)

     

       315
       315
       +
       		}

     

       316
       316
       +
       

     

       317
       317
       +
       		// Wait for export

     

       318
       318
       +
       		await new Promise(resolve => setTimeout(resolve, 3000))

     

       319
       319
       +
       

     

       320
       320
       +
       		expect(true).toBe(true)

     

       321
       321
       +
       

     

       322
       322
       +
       		await shutdownGrafanaExporters()

     

       323
       323
       +
       	})

     

       324
       324
       +
       })

     

       325
       325
       +
       

     

       326
       326
       +
       // ============================================================================

     

       327
       327
       +
       // Manual Test Runner

     

       328
       328
       +
       // ============================================================================

     

       329
       329
       +
       

     

       330
       330
       +
       if (import.meta.main) {

     

       331
       331
       +
       	console.log('🧪 Running Grafana integration tests...\n')

     

       332
       332
       +
       	console.log('Live server tests will run if these environment variables are set:')

     

       333
       333
       +
       	console.log('  - GRAFANA_LOKI_URL + (GRAFANA_LOKI_TOKEN or GRAFANA_LOKI_USERNAME/PASSWORD)')

     

       334
       334
       +
       	console.log('  - GRAFANA_PROMETHEUS_URL + (GRAFANA_PROMETHEUS_TOKEN or GRAFANA_PROMETHEUS_USERNAME/PASSWORD)')

     

       335
       335
       +
       	console.log('')

     

       336
       336
       +
       }