commit 928fb954fe6d4cdc6eec3ab372ce478b122d5830 · cduck.me/statusphere-example-app-fork

+13 -11

src/index.ts

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       import { createResolver, Resolver } from '#/firehose/resolver'

     

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       import type { Database } from '#/db'

     

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       // Application state passed to the router and elsewhere

     

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       export type AppContext = {

     

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         db: Database

     

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         ingester: Ingester

     
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         static async create() {

     

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           const { NODE_ENV, HOST, PORT, DB_PATH } = env

     

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           const logger = pino({ name: 'server start' })

     

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           const logger = pino({ name: 'server start' })

     

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           // Set up the SQLite database

     

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           const db = createDb(DB_PATH)

     

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           await migrateToLatest(db)

     

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           const ingester = new Ingester(db)

     

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           // Create the atproto utilities

     

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           const oauthClient = await createClient(db)

     

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           const ingester = new Ingester(db)

     

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           const resolver = createResolver()

     

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           ingester.start()

     

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           const ctx = {

     

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             db,

     

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             ingester,

     
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             resolver,

     

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           }

     

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           const app: Express = express()

     

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           // Subscribe to events on the firehose

     

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           ingester.start()

     

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           // Set the application to trust the reverse proxy

     

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           // Create our server

     

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           const app: Express = express()

     

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           app.set('trust proxy', true)

     

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           // Middlewares

     

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           // Routes & middlewares

     

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           const router = createRouter(ctx)

     

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           app.use(express.json())

     

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           app.use(express.urlencoded({ extended: true }))

     

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           // Routes

     

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           const router = createRouter(ctx)

     

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           app.use(router)

     

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           // Error handlers

     

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           app.use((_req, res) => res.sendStatus(404))

     

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           // Bind our server to the port

     

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           const server = app.listen(env.PORT)

     

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           await events.once(server, 'listening')

     

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           logger.info(`Server (${NODE_ENV}) running on port http://${HOST}:${PORT}`)

+31

src/routes.ts

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       import { page } from '#/lib/view'

     

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       import * as Status from '#/lexicon/types/com/example/status'

     

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       // Helper function for defining routes

     

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       const handler =

     

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         (fn: express.Handler) =>

     

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         async (

     
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       export const createRouter = (ctx: AppContext) => {

     

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         const router = express.Router()

     

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         // Static assets

     

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         router.use('/public', express.static(path.join(__dirname, 'pages', 'public')))

     

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         // OAuth metadata

     

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         router.get(

     

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           '/client-metadata.json',

     

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           handler((_req, res) => {

     
···

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           })

     

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         )

     

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         // OAuth callback to complete session creation

     

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         router.get(

     

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           '/oauth/callback',

     

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           handler(async (req, res) => {

     
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           })

     

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         )

     

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         // Login page

     

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         router.get(

     

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           '/login',

     

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           handler(async (_req, res) => {

     
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           })

     

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         )

     

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         // Login handler

     

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         router.post(

     

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           '/login',

     

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           handler(async (req, res) => {

     

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             // Validate

     

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             const handle = req.body?.handle

     

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             if (typeof handle !== 'string' || !isValidHandle(handle)) {

     

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               return res.type('html').send(page(login({ error: 'invalid handle' })))

     

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             }

     

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             // Initiate the OAuth flow

     

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             try {

     

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               const url = await ctx.oauthClient.authorize(handle)

     

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               return res.redirect(url.toString())

     
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           })

     

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         )

     

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         // Logout handler

     

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         router.post(

     

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           '/logout',

     

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           handler(async (req, res) => {

     
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           })

     

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         )

     

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         // Homepage

     

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         router.get(

     

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           '/',

     

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           handler(async (req, res) => {

     

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             // If the user is signed in, get an agent which communicates with their server

     

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             const agent = await getSessionAgent(req, res, ctx)

     

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             // Fetch data stored in our SQLite

     

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             const statuses = await ctx.db

     

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               .selectFrom('status')

     

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               .selectAll()

     
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                   .where('authorDid', '=', agent.accountDid)

     

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                   .executeTakeFirst()

     

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               : undefined

     

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             // Map user DIDs to their domain-name handles

     

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             const didHandleMap = await ctx.resolver.resolveDidsToHandles(

     

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               statuses.map((s) => s.authorDid)

     

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             )

     

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             if (!agent) {

     

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               // Serve the logged-out view

     

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               return res.type('html').send(page(home({ statuses, didHandleMap })))

     

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             }

     

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             // Fetch additional information about the logged-in user

     

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             const { data: profile } = await agent.getProfile({

     

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               actor: agent.accountDid,

     

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             })

     

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             didHandleMap[profile.handle] = agent.accountDid

     

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             // Serve the logged-in view

     

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             return res

     

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               .type('html')

     

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               .send(page(home({ statuses, didHandleMap, profile, myStatus })))

     

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           })

     

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         )

     

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         // "Set status" handler

     

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         router.post(

     

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           '/status',

     

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           handler(async (req, res) => {

     

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             // If the user is signed in, get an agent which communicates with their server

     

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             const agent = await getSessionAgent(req, res, ctx)

     

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             if (!agent) {

     

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               return res.status(401).json({ error: 'Session required' })

     

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             }

     

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             // Construct & validate their status record

     

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             const record = {

     

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               $type: 'com.example.status',

     

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               status: req.body?.status,

     
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             }

     

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             try {

     

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               // Write the status record to the user's repository

     

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               await agent.com.atproto.repo.putRecord({

     

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                 repo: agent.accountDid,

     

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                 collection: 'com.example.status',

     
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             }

     

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             try {

     

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               // Optimistically update our SQLite

     

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               // This isn't strictly necessary because the write event will be

     

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               // handled in #/firehose/ingestor.ts, but it ensures that future reads

     

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               // will be up-to-date after this method finishes.

     

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               await ctx.db

     

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                 .insertInto('status')

     

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                 .values({