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Telegram News Bot

Deploy application to AWS

  • install aws cli and sam cli,
  • set credentials and region via aws cli (guide),
  • create .env file from .env.example file and modify it for your needs.

Import parameters

Run task for importing parameters from .env file to SSM Parameter Store.

rake reimport_params NAMESPACE=<stack-name>

  • NAMESPACE - string that matches stack name provided in deploy script ($AWS_STACK_NAME, see below).

Deployment

  • run deployment script:
AWS_STACK_NAME=<stack-name> S3_BUCKET_NAME=<bucket-name> ./deploy.sh
  • AWS_STACK_NAME - string (kebab-case); value that matches namespace from SSM Parameter Store,
  • S3_BUCKET_NAME - string (kebab-case); previously created S3 bucket name that will hold artifacts.

Attach Telegram Webhook

After deployment, you will get WEBHOOK_URL. Go to Telegram, message BotFather to get TELEGRAM_BOT_TOKEN. Change the URL provided below to fit the parameters and paste it in your browser.

GET https://api.telegram.org/bot<TELEGRAM_BOT_TOKEN>/setWebhook?url=<WEBHOOK_URL>

Serverless setup locally

  • install ngrok (npm install -g ngrok), create an account and login
  • create ngrok tunnel to port 3000
    • ngrok http 3000
    • copy tunnel link (e.g. https://b26b43ce.ngrok.io) as it will be your WEBHOOK_URL
  • attach Telegram webhook to your bot as described above
  • run script to try serverless setup locally ./test_local.sh

Local development

For local development we don't need to use serverless stack.

  • delete Telegram Webhook:
GET https://api.telegram.org/bot<TELEGRAM_BOT_TOKEN>/deleteWebhook
  • run script:
ruby polling_dev.rb
  • for stopping the script, press CMD/CTRL + Z to suspend and run:
ps -A | grep polling_dev.rb | awk '{print $1}' | xargs kill -KILL