How to Test Facebook Messenger Webhooks

Facebook Messenger Platform webhooks deliver incoming messages, postbacks, and delivery receipts for chatbot integrations.

1. Facebook Messenger Webhook Events

Facebook Messenger can send the following webhook events to your endpoint:

2. Set Up a Test Endpoint with HookRay

Follow these steps to start receiving Facebook Messenger webhooks for testing:

1. Go to HookRay and click "Start Testing — Free" to get your unique webhook URL.
2. Copy the URL (e.g., https://h.hookray.com/abc123).
3. In your Facebook Messenger dashboard, navigate to the webhook settings and paste the HookRay URL as your endpoint.
4. Select the events you want to receive (see list above).
5. Trigger a test event — HookRay will show the incoming webhook in real-time.

3. Sample Facebook Messenger Webhook Payload

Here's an example of what a Facebook Messenger webhook payload looks like:

{
  "object": "page",
  "entry": [
    {
      "id": "PAGE_ID",
      "time": 1763589000,
      "messaging": [
        {
          "sender": {
            "id": "USER_ID"
          },
          "recipient": {
            "id": "PAGE_ID"
          },
          "timestamp": 1763589000,
          "message": {
            "mid": "mid.abc123",
            "text": "Hello, I have a question!"
          }
        }
      ]
    }
  ]
}

4. Common Issues & Troubleshooting

5. Next Steps

• Use HookRay's webhook replay feature to re-send captured webhooks while building your handler
• Enable smart parsing (Pro plan) to see Facebook Messenger-specific fields highlighted automatically
• Check the Facebook Messenger webhook documentation for the complete event reference