Telegram bot for AWS Lambda (TS)

Example repository for Telegraf.js + Serverless framework + AWS Lambda (Node.js Typescript)

Setup

Env

1. Clone this repo, path will be /path/to/project/telegraf_sls_ts_example
2. Set up AWS CLI. Serverless fw uses its credentials.
3. Set up AWS SDK layer for Lambda funtion in /path/to/project/aws-sdk-layer/nodejs
4. Install Node.js v16.x from nodesource.
5. Install Serverless Framework With $ npm install -g serverless
6. Install required npm packages with $ yarn install

Telegram Bot token

1. Open Telegram app & Create your new bot with @BotFather, then get a bot token.
2. $ cp .env.dev.sample.json .env.dev.json
3. paste your BOT TOKEN into .env.dev.json

Code

1. Deploy into AWS Lambda with $ yarn sls deploy
2. Make sure these items:
   • Your Lambda function exists on AWS, specified region.
   • BOT_TOKEN was written in function's Environment variables.
   • Make sure your API ENDPOINT URL on deploy log, that executes your Lambda function.
3. Set webhook with Telegram API. Open https://api.telegram.org/bot<BOT_TOKEN>/setWebHook?url=<API_ENDPOINT_URL> in browser.
   • ( API_ENDPOINT_URL looks like: https://abcdefghijk.execute-api.<REGION-NAME>.amazonaws.com/<STAGE>/<RESOURCE> )
4. Open Telegram app & /start with your bot.
5. Let's code your function in src/functions/webhook/handler.ts then $ yarn sls deploy dev -f webhook