Serverless backend for Facebook Messenger Bot
You need to have installed the Serverless Framework (version 0.5.2 or higher) and you're using Node.js v4.0+.
sls project install serverless-facebook-messenger-bot
Follow quickstart but start with Step 1 and Step 3 to get Page Access Token before deploying backend.
sls variables set -k PAGE_ACCESS_TOKEN
sls variables set -k VERIFY_TOKEN
VERIFY_TOKEN is used for subsciption verification.
Deploy all functions and endpoints
sls function deploy --all
sls endpoint deploy --all
Now you have public webhook URL.
Back to the FB App Quickstart and verify your webhook.
curl -ik -X POST "https://graph.facebook.com/v2.6/me/subscribed_apps?access_token=<PAGE_ACCESS_TOKEN>"
Go to your Facebook Page and send a message to it. The response will come from your brand new servreless backend! See screenshots in the Quickstart
npm test
Want to add some logic into bot's responses? Take a look in functions/webhook/handlers/
sls function deploy --all
npm run offline
and you can send POST requests to http://localhost:3000/webhook
To get an idea about the POST body, enable logging:
sls variables set -k LOG_WEBHOOK_MESSAGES -v true
deploy, send few messages via Messenger and see the logs:
sls function logs webhook