telegram-bot-grammy

.husky/pre-commit:

pnpm exec lint-staged
pnpm test

Code Structure

Entry File (src/index.ts)

import { PrismaClient } from "@prisma/client";
import { PrismaD1 } from "@prisma/adapter-d1";
import { Bot, webhookCallback } from "grammy";

export interface Env {
  BOT_TOKEN: string;
  BOT_INFO: string;
  DB: D1Database;
}

export default {
  async fetch(request: Request, env: Env): Promise<Response> {
    const adapter = new PrismaD1(env.DB);
    const prisma = new PrismaClient({ adapter });

    const bot = new Bot(env.BOT_TOKEN, {
      botInfo: JSON.parse(env.BOT_INFO),
    });

    bot.command("start", async (ctx) => {
      const user = ctx.from;
      if (user) {
        await prisma.user.upsert({
          where: { telegramId: BigInt(user.id) },
          update: { username: user.username, firstName: user.first_name },
          create: {
            telegramId: BigInt(user.id),
            username: user.username,
            firstName: user.first_name,
          },
        });
      }
      await ctx.reply("Welcome to the Bot!");
    });

    return webhookCallback(bot, "cloudflare-mod")(request);
  },
};

GitHub Actions CI/CD

Workflow Overview

| dev | push | development (my-telegram-bot-dev)

| main | push | production (my-telegram-bot)

.github/workflows/ci.yml

name: CI/CD

on:
  push:
    branches: [main, dev]
  pull_request:
    branches: [main, dev]

jobs:
  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: pnpm/action-setup@v4
      - uses: actions/setup-node@v4
        with:
          node-version: 20
          cache: pnpm
      - run: pnpm install --frozen-lockfile
      - run: pnpm exec prisma generate
      - run: pnpm run lint
      - run: pnpm run test

  deploy-dev:
    needs: test
    if: github.ref == 'refs/heads/dev' && github.event_name == 'push'
    environment: development
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: pnpm/action-setup@v4
      - uses: actions/setup-node@v4
      - run: pnpm install --frozen-lockfile
      - run: pnpm exec prisma generate
      - uses: cloudflare/wrangler-action@v3
        with:
          apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
          environment: dev

  deploy-production:
    needs: test
    if: github.ref == 'refs/heads/main' && github.event_name == 'push'
    environment: production
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: pnpm/action-setup@v4
      - uses: actions/setup-node@v4
      - run: pnpm install --frozen-lockfile
      - run: pnpm exec prisma generate
      - uses: cloudflare/wrangler-action@v3
        with:
          apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
          environment: production

GitHub Configuration

Secrets (Settings → Secrets and variables → Actions):

• CLOUDFLARE_API_TOKEN: Cloudflare API Token

Environments (Settings → Environments):

• development: Optional protection rules

• production: Recommend configuring Required reviewers

Deployment

Manual Deployment

# Deploy to development
pnpm exec wrangler deploy --env dev

# Deploy to production
pnpm exec wrangler deploy --env production

Set Secrets

# Development
pnpm exec wrangler secret put BOT_TOKEN --env dev

# Production
pnpm exec wrangler secret put BOT_TOKEN --env production

Set Webhook

# Development
curl "https://api.telegram.org/bot<DEV_TOKEN>/setWebhook?url=https://my-telegram-bot-dev.<subdomain>.workers.dev/"

# Production
curl "https://api.telegram.org/bot<PROD_TOKEN>/setWebhook?url=https://my-telegram-bot.<subdomain>.workers.dev/"

References

• grammY Documentation

• Prisma D1 Guide

• Cloudflare Workers

• Wrangler Environments