Webhooks

Casdoor can notify your application when events occur by sending HTTP POST requests with a JSON payload to a URL you configure. Use webhooks to react to sign-ups, logins, logouts, profile updates, and many other events.

How webhooks work

When an event occurs in Casdoor:

1. Casdoor sends a POST request to the specified webhook URL.
2. The request contains a JSON payload with event details.
3. Your application processes the payload and executes relevant actions based on the event type.

Supported events

Webhooks can be subscribed to a wide set of events, grouped by area:

Authentication & Session Events

• signup, login, logout - User authentication flows
• sso-logout, unlink - Single sign-on and account unlinking
• new-user - Custom event for new user creation

Resource Management Events

Standard CRUD operations (add-*, update-*, delete-*) are available for all core resources including organizations, groups, users, applications, providers, and certificates. Additional resources like roles, permissions, models, adapters, enforcers, sessions, tokens, products, payments, and pricing also support these operations. Webhooks can track changes to syncers, forms, invitations, LDAP configurations, orders, tickets, and transactions as well.

Specialized Operations

User Management: add-user-keys, remove-user-from-group, upload-users, check-user-password, set-password, reset-email-or-phone, verify-identification

Bulk Operations: upload-groups, upload-roles, upload-permissions, upload-resource

Order Processing: place-order, cancel-order, pay-order

Payment Handling: invoice-payment, notify-payment

Invitations: send-invitation, verify-invitation

Support Systems: add-ticket-message

Synchronization: run-syncer, test-syncer-db, sync-ldap-users

Access Control: enforce, batch-enforce, add-policy, update-policy, remove-policy, add-record

Multi-Factor Authentication: delete-mfa, set-preferred-mfa, mfa/setup/initiate, mfa/setup/verify, mfa/setup/enable

WebAuthn: webauthn/signup/begin, webauthn/signup/finish, webauthn/signin/begin, webauthn/signin/finish

OAuth & Token Management: login/oauth/access_token, login/oauth/refresh_token, login/oauth/introspect

Verification & Communication: send-verification-code, verify-code, verify-captcha, send-email, send-sms, send-notification

SAML: acs, saml/metadata

System Operations: run-casbin-command, refresh-engines, health, metrics, callback, device-auth, faceid-signin-begin, user, userinfo

Each event includes contextual information in the webhook payload, allowing you to implement custom logic based on the specific action that triggered the webhook.

Setting up a webhook

1. In your Casdoor instance, go to Settings → Webhooks.
2. Click Add Webhook.
3. Enter the Webhook URL that will receive events.
4. Select one or more events to subscribe to.
5. (Optional) Add custom headers (e.g. for authentication).
6. Save. Casdoor will send events to the URL from then on.

Filtering webhook payloads

When working with webhooks, you might not always need the complete record data. Casdoor allows you to filter the payload by configuring ObjectFields for each webhook. This feature is particularly valuable when you have privacy concerns, bandwidth constraints, or when your endpoint only processes specific fields.

The ObjectFields configuration accepts either "All" to receive the complete record, or a list of specific field names you want to include. When you specify field names, Casdoor will send only those fields in the webhook payload, reducing payload size and exposing only the data your application needs.

If you configure multiple webhooks with different ObjectFields settings, each webhook operates independently. For example, one webhook might receive only user IDs and timestamps, while another receives full user profiles. Casdoor ensures that the filtering applied to one webhook doesn't affect the data sent to others, even when they're triggered by the same event.

Example payload

Example JSON sent to your webhook on login:

{
  "event": "login",
  "timestamp": 1709452800,
  "user": {
    "id": "12345",
    "username": "johndoe",
    "email": "johndoe@example.com"
  }
}

Your application should parse this payload and perform necessary actions, such as logging the event or notifying another service.

Testing webhooks

Before production, test with:

• Beeceptor – Allows you to create a custom webhook URL and inspect incoming requests.
• Webhook.site – Provides an instant webhook endpoint for testing.

Example with Beeceptor

1. Create an endpoint at Beeceptor.
2. Copy the URL and set it as the webhook URL in Casdoor.
3. Trigger an event (e.g. sign in to Casdoor).
4. Inspect the request in Beeceptor’s dashboard.

Handling webhooks in your application

Your server should be able to process incoming webhook requests. Below is a simple example in Node.js:

const express = require('express');
const app = express();

app.use(express.json());

app.post('/webhook', (req, res) => {
  console.log('Received webhook:', req.body);
  res.status(200).send('Webhook received');
});

app.listen(3000, () => console.log('Server running on port 3000'));

Validate incoming webhook requests (e.g. signatures or shared secrets) and test with Beeceptor or Webhook.site before using webhooks in production.

Delivery tracking and retry

Casdoor persists every webhook delivery attempt as a Webhook Event record. Navigate to Webhook Events in the sidebar to see the delivery history for all webhooks in your organization.

Each event record includes:

Field	Description
Status	pending, success, failed, or retrying
Attempt count	How many delivery attempts have been made
Last status code	HTTP response code from the most recent attempt
Last response / error	Response body or error message from the most recent attempt
Next retry time	When the next automatic retry will occur (if applicable)

Automatic retry

Failed deliveries are retried automatically by a background worker that runs every 30 seconds. The default maximum retries per event is 3. After all retries are exhausted the event status is set to failed and no further attempts are made automatically.

Manual replay

To re-deliver an event, open it in the Webhook Events list and click Replay. This creates a new delivery attempt regardless of the current retry count or status. Use this to recover from temporary endpoint outages or to re-process an event after fixing a bug in your handler.