Discord Notification Bot

This example receives Freshbatch webhook payloads, verifies the HMAC signature, and forwards job listings to a Discord channel using webhook embeds.

How it works

• - POST requests are received on /webhook.
• - The webhook-signature header is validated with WEBHOOK_SECRET.
• - Incoming jobs are normalized and formatted into Discord embeds.
• - A message is delivered via Discord webhook URL.

Project structure

• - server.ts handles Express routes and webhook endpoint logic.
• - utils.ts contains signature verification and key sorting helpers.
• - discord-webhook.ts builds embeds and posts with discord.js WebhookClient.
• - call-hook.test.ts sends a signed local mock request.

Environment variables

PORT=3232
WEBHOOK_SECRET=your_shared_secret
DISCORD_WEBHOOK_URL=https://discord.com/api/webhooks/...
SERVER_URL=http://localhost:3232

Run locally

bun install
bun run server

# In a separate terminal (with server running)
bun run mock-test

Expected request shape

{
	"data": [
		{
			"title": "...",
			"url": "...",
			"company_name": "...",
			"is_fte": true,
			"is_intern": false,
			"is_test": true,
			"date_posted": 1704067200000,
			"source": "freshbatch-test",
			"degrees": ["BS Computer Science"],
			"sponsorship": "Available",
			"locations": ["Remote"],
			"category": "Engineering"
		}
	]
}