Webhooks

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The Help Center explains this surface as users see it: API Routes & Webhooks.

Apps can expose public webhook endpoints — server-side handlers that receive requests without requiring Informer authentication. Webhooks are ideal for receiving callbacks from external services (Slack, Stripe, GitHub, etc.).

How Webhooks Work

Webhooks use the same file-convention routing as server routes, but files go in a webhooks/ directory instead of server/:

Directory	Auth Required	URL Pattern
`server/`	Yes (session/token)	`/api/apps/{id}/view/api/_server/...`
`webhooks/`	No (public)	`/api/apps/{id}/_hook/...`

During deploy, both directories are scanned and bundled. Webhook routes are registered with a public: true flag.

Defining Webhooks

Create handler files in webhooks/ using the same conventions as server routes:

// webhooks/stripe.js
export const config = { timeout: 60000 };

export async function POST({ query, fetch, request }) {
  const event = request.body;

  // Verify signature using rawBody
  // (rawBody is available on webhook requests for HMAC verification)

  await query(
    'INSERT INTO webhook_events (type, payload) VALUES ($1, $2)',
    [event.type, JSON.stringify(event)]
  );

  return { status: 200, body: { received: true } };
}

// webhooks/slack/commands.js
export const config = { timeout: 25000 };

export async function POST({ query, fetch, respond, request }) {
  const { text, response_url } = request.body;

  // Ack Slack immediately (3-second deadline)
  await respond({ response_type: 'ephemeral', text: 'Processing...' });

  // Do the real work in background
  const result = await fetch('datasets/admin:sales/_search', {
    method: 'POST',
    body: { query: { match_all: {} }, size: 10 }
  });

  // Post back to Slack
  await fetch('integrations/slack/request', {
    method: 'POST',
    body: {
      url: response_url,
      method: 'POST',
      data: { text: `Found ${result.body.hits.total} records` }
    }
  });
}

File Routing

File	Route	URL
`webhooks/stripe.js`	`POST /stripe`	`/api/apps/{id}/_hook/stripe`
`webhooks/slack/commands.js`	`POST /slack/commands`	`/api/apps/{id}/_hook/slack/commands`
`webhooks/github/[action].js`	`POST /github/:action`	`/api/apps/{id}/_hook/github/push`

Webhook Handler Context

Webhook handlers receive the same single context bag as server routes — query, fetch, context (typed dependencies), respond, emit, broadcast, notify, email, crypto, markdown, extractText, log, and env, plus the base64 globals (base64Encode/base64Decode/base64UrlEncode/base64UrlDecode, btoa/atob). See Server Routes for the full reference on each callback, and The crypto Object for the crypto surface.

notify() and email() are available on webhooks — handlers run as the app owner, so message attribution is well-defined. This is at parity with server routes.

The differences are all in how the request is identified — webhooks are public, so there's no authenticated caller:

Property	Webhook value
`request.rawBody`	Raw request body string — present on webhooks for HMAC signature verification
`request.user`	The app owner's identity (handlers run as the owner), not the caller
`request.roles`	Always `[]` (a public caller has no app roles)
`request.app`	Same as server routes: identity plus `baseUrl`, `origin`, and `apiUrl` (App Object)
`request.body` / `headers` / `params` / `query`	Same as server routes

Authentication

Webhook requests run with the app owner's credentials. This means:

fetch() calls use the owner's API permissions
query() accesses the owner's workspace schema
The owner credentials are cached for 5 minutes

Since webhooks are public, verify the caller's identity using signature verification. Use crypto.verifyHmac(...) — it computes the HMAC and compares in constant time, avoiding the timing leak of a plain ===/!== comparison:

export async function POST({ request, crypto, env }) {
  // GitHub sends `x-hub-signature-256: sha256=<hex>`
  const signature = (request.headers['x-hub-signature-256'] || '').replace(/^sha256=/, '');

  const ok = await crypto.verifyHmac('sha256', env.GITHUB_WEBHOOK_SECRET, request.rawBody, signature);
  if (!ok) {
    return { status: 401, body: { error: 'Invalid signature' } };
  }

  // Process verified webhook...
}

Webhook API Endpoints

GET /api/apps/{id}/webhooks

List registered webhook routes and their invocation statistics.

Authentication: Required

Permissions Required: app:write (Designer for Magic Reports, Admin for full Apps)

Query Parameters: method and path (together) filter the recent and daily sections to one route.

List webhook routes and statsGET /api/apps/00000000-0000-4000-8000-000000000001/webhooks

recent holds the last 50 invocations; daily aggregates the last 30 days. method/path query params filter both.

Response · 200

{
  "_links": {
    "self": {
      "href": "https://informer.example.com/api/apps/00000000-0000-4000-8000-000000000001/webhooks"
    }
  },
  "routes": [
    {
      "method": "POST",
      "path": "/order-created",
      "config": {
        "public": true
      }
    }
  ],
  "recent": [
    {
      "id": "00000000-0000-4000-8000-000000000002",
      "method": "POST",
      "path": "/order-created",
      "startedAt": "2026-01-15T16:20:00.000Z",
      "durationMs": 42,
      "statusCode": 200,
      "memoryPeakBytes": "8388608",
      "error": null
    },
    {
      "id": "00000000-0000-4000-8000-000000000003",
      "method": "POST",
      "path": "/order-created",
      "startedAt": "2026-01-15T16:20:00.000Z",
      "durationMs": 42,
      "statusCode": 200,
      "memoryPeakBytes": "8388608",
      "error": null
    }
  ],
  "daily": [
    {
      "day": "2026-01-15T16:20:00.000Z",
      "count": 2,
      "avgDurationMs": 42,
      "errorCount": 0
    }
  ]
}

Captured from the API examples test suite; ids and timestamps are normalized.

Response Sections:

Field	Description
`routes`	Registered public routes: `{ method, path, config }`
`recent`	Last 50 invocations: id, method, path, `startedAt`, `durationMs`, `statusCode`, `memoryPeakBytes`, and the captured `error` (if any)
`daily`	Per-day aggregates for the last 30 days: `count`, `avgDurationMs`, `errorCount`

Webhook Invocation Endpoints

These are the public endpoints that external services call:

GET /api/apps/{id}/_hook/{path*} — Public GET webhook
POST /api/apps/{id}/_hook/{path*} — Public POST webhook
PUT /api/apps/{id}/_hook/{path*} — Public PUT webhook

No Informer session is required; the ?token= JWT authenticates the call and the {path*} segment is matched against registered webhook routes.

Invoke a webhook (public)POST /api/apps/00000000-0000-4000-8000-000000000001/_hook/order-created?token=eyJhbGciOiJIUzI1NiJ9.example-token-1.signature

No Informer session: the ?token= JWT authenticates the call and the handler runs as the app owner. GET, POST, and PUT are supported.

Request body

{
  "orderId": 1043
}

Response · 200

{
  "received": true,
  "orderId": 1043
}

Captured from the API examples test suite; ids and timestamps are normalized.

Webhook Tokens

Webhook invocation URLs are authenticated with a ?token=<jwt> query parameter. A webhook token is a JWT signed with the app's webhook secret, so its validity is scoped to a single app. Tokens are revocable: deleting a token immediately rejects any future request that presents it with 401, without rotating the app's secret or invalidating other tokens.

These management endpoints require app:write (Designer for Magic Reports, Admin for full Apps).

POST /api/apps/{id}/webhook-tokens

Mint a new revocable token. Optional body: { "notes": "<label>" }.

Mint a webhook tokenPOST /api/apps/00000000-0000-4000-8000-000000000001/webhook-tokens

The token is a JWT signed with the app webhook secret; embed it as ?token= on the _hook URL. Revoking the row immediately invalidates it.

Request body

{
  "notes": "Order Desk CI hook"
}

Response · 201

{
  "_links": {
    "self": {
      "href": "https://informer.example.com/api/tokens/00000000-0000-4000-8000-000000000002"
    },
    "inf:token-type": {
      "href": "https://informer.example.com/api/token-types/webhook"
    }
  },
  "resource": "Order Desk",
  "permissions": {
    "edit": true,
    "delete": true
  },
  "id": "00000000-0000-4000-8000-000000000002",
  "type": "webhook",
  "readOnly": false,
  "notes": "Order Desk CI hook",
  "restrict": null,
  "host": null,
  "cidr": null,
  "data": null,
  "requests": 0,
  "blocked": 0,
  "lastAccessedAt": null,
  "expiresAt": null,
  "createdAt": "2026-01-15T16:20:00.000Z",
  "updatedAt": "2026-01-15T16:20:00.000Z",
  "tenant": "acme",
  "username": "admin",
  "reportId": null,
  "queryId": null,
  "visualId": null,
  "datasourceId": null,
  "datasetId": null,
  "appId": "00000000-0000-4000-8000-000000000001",
  "assistantId": null,
  "oauthClientId": null,
  "user": {
    "permissions": {
      "changeDomain": true,
      "changeProfile": true,
      "changePassword": false,
      "delete": true,
      "edit": true,
      "reassign": true,
      "superuser": true,
      "enable": true,
      "changeTheme": true,
      "lock": true,
      "setGlobalPermissions": true,
      "manageLogin": false
    },
    "displayName": "acme Administrator",
    "email": null
  },
  "assistant": null,
  "oauthClient": null,
  "typeName": "App Webhook Token",
  "key": "eyJhbGciOiJIUzI1NiJ9.example-token-1.signature",
  "_embedded": {
    "inf:app": {
      "_links": {
        "self": {
          "href": "https://informer.example.com/api/apps/00000000-0000-4000-8000-000000000001"
        },
        "inf:owner": {
          "href": "https://informer.example.com/api/apps/admin%3Aorder-desk/owner"
        },
        "inf:draft": {
          "href": "https://informer.example.com/api/apps/admin%3Aorder-desk/draft"
        },
        "inf:app-shares": {
          "href": "https://informer.example.com/api/apps/admin%3Aorder-desk/shares"
        },
        "inf:app-tags": {
          "href": "https://informer.example.com/api/apps/00000000-0000-4000-8000-000000000001/tags"
        },
        "inf:favorite": {
          "href": "https://informer.example.com/api/apps/00000000-0000-4000-8000-000000000001/favorite"
        },
        "inf:app-tag": {
          "href": "https://informer.example.com/api/apps/00000000-0000-4000-8000-000000000001/tags/{tagId}",
          "templated": true
        },
        "inf:export-bundle": {
          "href": "https://informer.example.com/api/apps/00000000-0000-4000-8000-000000000001/_export"
        },
        "inf:cloud-publish": {
          "href": "https://informer.example.com/api/apps/00000000-0000-4000-8000-000000000001/_cloud-publish"
        },
        "inf:copy": {
          "href": "https://informer.example.com/api/apps/00000000-0000-4000-8000-000000000001/_copy"
        },
        "inf:print": [
          {
            "href": "https://informer.example.com/api/apps/00000000-0000-4000-8000-000000000001/_print"
          },
          {
            "href": "https://informer.example.com/api/apps/admin%3Aorder-desk/_print",
            "title": "Print to PDF"
          }
        ],
        "inf:migrate": {
          "href": "https://informer.example.com/api/apps/00000000-0000-4000-8000-000000000001/_migrate"
        },
        "inf:deploy": {
          "href": "https://informer.example.com/api/apps/00000000-0000-4000-8000-000000000001/_deploy"
        },
        "inf:app-mcp": {
          "href": "https://informer.example.com/api/apps/admin%3Aorder-desk/mcp"
        },
        "inf:app-tokens": {
          "href": "https://informer.example.com/api/apps/admin%3Aorder-desk/tokens"
        },
        "inf:app-roles": {
          "href": "https://informer.example.com/api/apps/admin%3Aorder-desk/roles"
        },
        "inf:app-dependencies": {
          "href": "https://informer.example.com/api/apps/admin%3Aorder-desk/dependencies"
        },
        "inf:app-dependency": {
          "href": "https://informer.example.com/api/apps/00000000-0000-4000-8000-000000000001/dependencies/{name}",
          "templated": true
        },
        "inf:app-environment": {
          "href": "https://informer.example.com/api/apps/admin%3Aorder-desk/environment"
        },
        "inf:app-environment-var": {
          "href": "https://informer.example.com/api/apps/00000000-0000-4000-8000-000000000001/environment/{key}",
          "templated": true
        },
        "inf:app-suggest-icon": {
          "href": "https://informer.example.com/api/apps/admin%3Aorder-desk/_suggest-icon"
        },
        "inf:app-modernize-manifest": {
          "href": "https://informer.example.com/api/apps/admin%3Aorder-desk/_modernize-manifest"
        },
        "inf:app-draft-diff": {
          "href": "https://informer.example.com/api/apps/admin%3Aorder-desk/draft/_diff"
        },
        "edit": {
          "href": "https://informer.example.com/api/apps/admin%3Aorder-desk/_edit"
        },
        "inf:app-share": {
          "href": "https://informer.example.com/api/apps/00000000-0000-4000-8000-000000000001/shares/{principalId}",
          "templated": true
        },
        "inf:entrypoint": {
          "href": "https://informer.example.com/api/apps/admin%3Aorder-desk/view/",
          "title": "index.html"
        },
        "inf:library": {
          "href": "https://informer.example.com/api/libraries/00000000-0000-4000-8000-000000000003",
          "title": "App Files"
        },
        "inf:library-contents": {
          "href": "https://informer.example.com/api/libraries/00000000-0000-4000-8000-000000000003/contents/index.html",
          "title": "Raw Contents"
        },
        "share": {
          "href": "https://informer.example.com/api/apps/admin%3Aorder-desk/view/?token=%7Btoken%7D",
          "title": "Share Page"
        }
      },
      "naturalId": "admin:order-desk",
      "isManaged": false,
      "permissions": {
        "assignTags": true,
        "bind": true,
        "changeOwner": true,
        "copy": true,
        "delete": true,
        "edit": true,
        "manage": true,
        "purge": true,
        "restore": true,
        "run": true,
        "share": true,
        "switchRoles": true,
        "unmanage": true,
        "write": true
      },
      "id": "00000000-0000-4000-8000-000000000001",
      "type": "app",
      "name": "Order Desk",
      "tenant": "acme",
      "ownerId": "admin",
      "slug": "order-desk",
      "description": "Track and fulfill open orders",
      "defn": {
        "entryPoint": "index.html"
      },
      "settings": {
        "sandbox": true,
        "passDatasets": true
      },
      "origin": "ui",
      "source": null,
      "sourceId": null,
      "shared": false,
      "defnUpdatedAt": null,
      "libraryId": "00000000-0000-4000-8000-000000000003",
      "folderId": null,
      "deletedAt": null,
      "editingId": null,
      "deployedAt": "2026-01-15T16:20:00.000Z",
      "editingSession": null,
      "editingHeartbeatAt": null,
      "editingLockedBy": null,
      "createdAt": "2026-01-15T16:20:00.000Z",
      "updatedAt": "2026-01-15T16:20:00.000Z",
      "contentModifiedAt": "2026-01-15T16:20:00.000Z"
    }
  }
}

Captured from the API examples test suite; ids and timestamps are normalized.

GET /api/apps/{id}/webhook-tokens

List the app's revocable webhook tokens (rows are embedded under _embedded["inf:token"], newest first). Each entry includes the signed key, re-derived from the current webhook secret on every read.

List an App's webhook tokensGET /api/apps/00000000-0000-4000-8000-000000000001/webhook-tokens

Response · 200

{
  "_links": {
    "self": {
      "href": "https://informer.example.com/api/apps/00000000-0000-4000-8000-000000000001/webhook-tokens"
    }
  },
  "start": 0,
  "count": 1,
  "total": 1,
  "_embedded": {
    "inf:token": [
      {
        "_links": {
          "self": {
            "href": "https://informer.example.com/api/apps/00000000-0000-4000-8000-000000000001/webhook-tokens/00000000-0000-4000-8000-000000000002"
          },
          "inf:token-type": {
            "href": "https://informer.example.com/api/token-types/webhook"
          }
        },
        "permissions": {
          "edit": true,
          "delete": true
        },
        "id": "00000000-0000-4000-8000-000000000002",
        "type": "webhook",
        "readOnly": false,
        "notes": "Order Desk CI hook",
        "restrict": null,
        "host": null,
        "cidr": null,
        "data": null,
        "requests": 0,
        "blocked": 0,
        "lastAccessedAt": null,
        "expiresAt": null,
        "createdAt": "2026-01-15T16:20:00.000Z",
        "updatedAt": "2026-01-15T16:20:00.000Z",
        "tenant": "acme",
        "username": "admin",
        "reportId": null,
        "queryId": null,
        "visualId": null,
        "datasourceId": null,
        "datasetId": null,
        "appId": "00000000-0000-4000-8000-000000000001",
        "assistantId": null,
        "oauthClientId": null,
        "typeName": "App Webhook Token",
        "key": "eyJhbGciOiJIUzI1NiJ9.example-token-1.signature"
      }
    ]
  }
}

Captured from the API examples test suite; ids and timestamps are normalized.

DELETE /api/apps/{id}/webhook-tokens/{tokenId}

Revoke a token by deleting it. Subsequent webhook requests presenting that token are rejected with 401. Returns 404 if the token does not exist for this app.

Revoke a webhook tokenDELETE /api/apps/00000000-0000-4000-8000-000000000001/webhook-tokens/00000000-0000-4000-8000-000000000002

Response · 200

{
  "_links": {
    "self": {
      "href": "https://informer.example.com/api/apps/00000000-0000-4000-8000-000000000001/webhook-tokens/00000000-0000-4000-8000-000000000002"
    }
  },
  "id": "00000000-0000-4000-8000-000000000002"
}

Captured from the API examples test suite; ids and timestamps are normalized.

POST /api/apps/{id}/_rotate-webhook-secret

Rotate the app's webhook secret. Every previously-distributed token signature stops verifying at once; existing token rows survive and re-derive against the new secret on the next list.

Rotate the webhook secretPOST /api/apps/00000000-0000-4000-8000-000000000001/_rotate-webhook-secret

Invalidates every previously-distributed token signature at once. Token rows survive and re-derive against the new secret on the next list.

Response · 200

{
  "_links": {
    "self": {
      "href": "https://informer.example.com/api/apps/00000000-0000-4000-8000-000000000001/_rotate-webhook-secret"
    }
  },
  "id": "00000000-0000-4000-8000-000000000001"
}

Captured from the API examples test suite; ids and timestamps are normalized.

Emitting Events from Webhooks

Webhooks can trigger agents by emitting events:

// webhooks/github.js
export async function POST({ emit, request }) {
  const event = request.headers['x-github-event'];
  const payload = request.body;

  // Emit an event that triggers an agent
  await emit('github_push', {
    repo: payload.repository.full_name,
    branch: payload.ref,
    commits: payload.commits.length
  });

  return { status: 200, body: { received: true } };
}

Invocation Tracking

Each webhook invocation is recorded with:

HTTP method and path
Response status code
Execution duration (ms)
Peak memory usage
Error details (if any)

Daily aggregates are available via GET /api/apps/{id}/webhooks for the last 30 days.

Project Structure

my-app/
  server/
    orders/index.js       ← Auth-required routes
  webhooks/
    stripe.js             ← Public webhook (POST /stripe)
    slack/
      commands.js         ← Public webhook (POST /slack/commands)
      events.js           ← Public webhook (POST /slack/events)
  migrations/
    001-create-tables.sql
  informer.yaml
  index.html
  package.json

How Webhooks Work​

Defining Webhooks​

File Routing​

Webhook Handler Context​

Authentication​

Webhook API Endpoints​

GET /api/apps/{id}/webhooks​

Webhook Invocation Endpoints​

Webhook Tokens​

POST /api/apps/{id}/webhook-tokens​

GET /api/apps/{id}/webhook-tokens​

DELETE /api/apps/{id}/webhook-tokens/{tokenId}​

POST /api/apps/{id}/_rotate-webhook-secret​

Emitting Events from Webhooks​

Invocation Tracking​

Project Structure​

How Webhooks Work

Defining Webhooks

File Routing

Webhook Handler Context

Authentication

Webhook API Endpoints

GET /api/apps/{id}/webhooks

Webhook Invocation Endpoints

Webhook Tokens

POST /api/apps/{id}/webhook-tokens

GET /api/apps/{id}/webhook-tokens

DELETE /api/apps/{id}/webhook-tokens/{tokenId}

POST /api/apps/{id}/_rotate-webhook-secret

Emitting Events from Webhooks

Invocation Tracking

Project Structure