Facebook Webhook as a Service

Usage

• Starts the forward daemon locally

  $ ./forward http://localhost:4000/facebook/webhook_callback
  Forwarding SSE from "https://fbwhs.herokuapp.com/webhook/1HbA4TRlBeiS1nrfu5siRdgma7c" to "http://localhost:4000/facebook/webhook_callback"
  Usage:
  curl -X POST -d 'test=123' "https://fbwhs.herokuapp.com/webhook/1HbA4TRlBeiS1nrfu5siRdgma7c"
  

• Registers the webhook callback from above with Facebook

  curl -F "object=user" \
      -F "callback_url=https://fbwhs.herokuapp.com/webhook/1HbA4TRlBeiS1nrfu5siRdgma7c" \
      -F "fields=about" \
      -F "verify_token=1HbA4TRlBeiS1nrfu5siRdgma7c" \
      -F "access_token={FB_APP_ACCESS_TOKEN}" \
      "https://graph.facebook.com/{FB_APP_ID}/subscriptions"
  

  Note: the last part of the webhook address is the verify_token. E.g. https://fbwhs.herokuapp.com/webhook/abc123 where abc123 is the verify_token.

• Now, whenever Facebook sends a webhook to https://fbwhs.herokuapp.com/webhook/1HbA4TRlBeiS1nrfu5siRdgma7c, the daemon running locally will forward the request to your local server.

• Also, you can test it with curl -X POST -d 'test=123' "https://fbwhs.herokuapp.com/webhook/1HbA4TRlBeiS1nrfu5siRdgma7c", the local server callback http://localhost:4000/facebook/webhook_callback should recieve a request with a body test=123.

How it works

tldr; The concept is same as smee, but we handle Facebook's verification request for you.

Deploying to Heroku