A Cloudflare Worker which works in conjunction with https://github.com/indexxing/bsky-alt-text
indexx.dev
1import { fromHono } from "chanfana";
2import { cors } from "hono/cors";
3import { Hono } from "hono";
4
5import { CondenseTextEndpoint } from "./endpoints/condense_text";
6import { GenerateEndpoint } from "./endpoints/generate";
7import { geminiMiddleware } from "./middleware/gemini";
8import { authMiddleware } from "./middleware/auth";
9import { Env, Variables } from "./types";
10
11const app = new Hono<{ Bindings: Env; Variables: Variables }>();
12
13// The path which all routes are served from, for easy use with Worker Routes on custom domains.
14const rootPath = "/api/altText/";
15
16app.use(
17 "*",
18 cors({
19 origin: (origin) => {
20 const allowedOrigins = [
21 "https://indexx.dev",
22 "chrome-extension://",
23 "safari-web-extension://",
24 "moz-extension://",
25 ];
26
27 if (
28 origin &&
29 allowedOrigins.some((allowed) => origin.startsWith(allowed))
30 ) {
31 return origin;
32 }
33 return null;
34 },
35 allowMethods: ["GET", "POST", "PUT", "DELETE", "OPTIONS"],
36 allowHeaders: ["*"],
37 maxAge: 600,
38 credentials: true,
39 }),
40);
41
42const openapi = fromHono(app, {
43 schema: {
44 info: {
45 title: "Bluesky Alt Text",
46 description:
47 "Endpoints for https://github.com/indexxing/Bluesky-Alt-Text",
48 version: "1.0",
49 },
50 },
51 docs_url: rootPath,
52 openapi_url: rootPath + "openapi.json",
53});
54
55openapi.registry.registerComponent("securitySchemes", "bearerAuth", {
56 type: "http",
57 scheme: "bearer",
58 bearerFormat: "API key",
59});
60
61// Define Middlewares
62app.use("*", geminiMiddleware);
63app.use(rootPath + "generate", authMiddleware);
64app.use(rootPath + "condense_text", authMiddleware);
65
66// Define Routes
67openapi.post(rootPath + "generate", GenerateEndpoint);
68openapi.post(rootPath + "condense_text", CondenseTextEndpoint);
69
70export default app;