The provided code defines a server application using the Hono framework on Cloudflare Workers, integrated with the Expo SDK for handling push notifications.

Application Setup

• Dependencies: The code uses hono for the server framework and expo-server-sdk for handling Expo push notifications.
• Middleware: Three middlewares are used:
  • poweredBy: Removes or customizes the X-Powered-By header.
  • cors: Enables CORS (Cross-Origin Resource Sharing).
  • Custom Authorization Middleware: Checks the Authorization header against an environment variable AUTHORIZATION. If it doesn't match, it returns a 401 Unauthorized response.

Routes

• GET / Returns a simple greeting message, "Hello IXO!", to test server running.
• GET /test/:token A route handled by Notifications.sendTestNotification. It sends a test push notification to an Expo push token.
• GET /receipt/:ticket Handled by Notifications.fetchTicketReceipt. It retrieves the receipt for a previously sent push notification based on its ticket.

Develop

• Ensure you have Cloudflare Workers account and CLI configured.
• Copy example wrangler.toml as wrangler.toml
• Set the AUTHORIZATION variable in the new wrangler.toml file with your secret key.

Install

yarn install

Develop

yarn dev

Test

yarn test

Deploy

yarn deploy

Issues

• /src/handlers/notifications.ts:20
  • TypeError: Illegal invocation
    at Expo2. (index.js:11319:54)
    at Generator.next ()
    at index.js:11159:71
    at new Promise ()
    at __awaiter (index.js:11141:14)
    at Expo2.requestAsync (index.js:11297:16)
    at Expo2. (index.js:11198:35)
    at Generator.next ()
    at index.js:11159:71
    at new Promise () {
    stack: TypeError: Illegal invocation
    at Expo2.<anonym…ndex.js:11159:71
    at new Promise (),
    message: Illegal invocation
    }