---
title: "Triggers"
description: "Triggers (instance) class"
---

## Methods

### set_webhook_subscription()

Create or update the project webhook subscription used for webhook delivery.  If a subscription already exists, the first subscription is updated. Otherwise a new subscription is created. By default this subscribes to V3 trigger message events.

```python
def set_webhook_subscription(webhook_url: str, enabled_events: Sequence[str | None] = ..., version: Union[WebhookVersion, str] = ...) -> WebhookSubscription
```

**Parameters**

| Name | Type |
|------|------|
| `webhook_url` | `str` |
| `enabled_events?` | `Sequence[str \| None]` |
| `version?` | `Union[WebhookVersion, str]` |

**Returns**

`WebhookSubscription`

**Example**

```python
composio.triggers.set_webhook_subscription(
    webhook_url=f"{APP_URL}/webhooks/composio",
)
```

---

### get_type()

Get a trigger type by its slug Uses the global toolkit version provided when initializing composio instance to fetch trigger for specific toolkit version

```python
def get_type(slug: str) -> TriggersTypeRetrieveResponse
```

**Parameters**

| Name | Type |
|------|------|
| `slug` | `str` |

**Returns**

`TriggersTypeRetrieveResponse` — The trigger type

---

### list_active()

List all active triggers

```python
def list_active(trigger_ids: list[str | None] = ..., trigger_names: list[str | None] = ..., auth_config_ids: list[str | None] = ..., connected_account_ids: list[str | None] = ..., show_disabled: bool | None = ..., limit: int | None = ..., cursor: str | None = ...)
```

**Parameters**

| Name | Type |
|------|------|
| `trigger_ids?` | `list[str \| None]` |
| `trigger_names?` | `list[str \| None]` |
| `auth_config_ids?` | `list[str \| None]` |
| `connected_account_ids?` | `list[str \| None]` |
| `show_disabled?` | `bool \| None` |
| `limit?` | `int \| None` |
| `cursor?` | `str \| None` |

---

### list()

List all the trigger types.

```python
def list(cursor: str | None = ..., limit: int | None = ..., toolkit_slugs: list[str | None] = ...)
```

**Parameters**

| Name | Type |
|------|------|
| `cursor?` | `str \| None` |
| `limit?` | `int \| None` |
| `toolkit_slugs?` | `list[str \| None]` |

---

### create()

Create a trigger instance

```python
def create(slug: str, user_id: str | None = ..., connected_account_id: str | None = ..., trigger_config: Dict[str, Any | None] = ...) -> trigger_instance_upsert_response.TriggerInstanceUpsertRes...
```

**Parameters**

| Name | Type |
|------|------|
| `slug` | `str` |
| `user_id?` | `str \| None` |
| `connected_account_id?` | `str \| None` |
| `trigger_config?` | `Dict[str, Any \| None]` |

**Returns**

`trigger_instance_upsert_response.TriggerInstanceUpsertRes...` — The trigger instance

---

### subscribe()

Subscribe to a trigger and receive trigger events.

```python
def subscribe(timeout: float = ...) -> TriggerSubscription
```

**Parameters**

| Name | Type |
|------|------|
| `timeout?` | `float` |

**Returns**

`TriggerSubscription` — The trigger subscription handler.

---

### verify_webhook()

Verify an incoming webhook payload and signature.  This method validates that the webhook request is authentic by: 1. Validating the webhook timestamp is within the tolerance window 2. Verifying the HMAC-SHA256 signature using the correct algorithm 3. Parsing the payload and detecting the webhook version (V1, V2, or V3)

```python
def verify_webhook(id: str, payload: str, secret: str, signature: str, timestamp: str, tolerance: int = ...) -> VerifyWebhookResult
```

**Parameters**

| Name | Type |
|------|------|
| `id` | `str` |
| `payload` | `str` |
| `secret` | `str` |
| `signature` | `str` |
| `timestamp` | `str` |
| `tolerance?` | `int` |

**Returns**

`VerifyWebhookResult` — VerifyWebhookResult containing version, normalized payload, and raw payload :raises WebhookSignatureVerificationError: If the signature verification fails :raises WebhookPayloadError: If the payload cannot be parsed or is invalid

**Example**

```python
# In a Flask webhook handler
@app.route('/webhook', methods=['POST'])
def webhook():
    try:
        result = composio.triggers.verify_webhook(
            id=request.headers.get('webhook-id', ''),
            payload=request.get_data(as_text=True),
            signature=request.headers.get('webhook-signature', ''),
            timestamp=request.headers.get('webhook-timestamp', ''),
            secret=os.environ['COMPOSIO_WEBHOOK_SECRET'],
        )

        # Process the verified payload
        print(f"Version: {result['version']}")
        print(f"Received trigger: {result['payload']['trigger_slug']}")
        return 'OK', 200
    except WebhookSignatureVerificationError:
        return 'Unauthorized', 401
```

---

### parse()

Parse an incoming webhook request into a typed, normalized trigger payload.  Pass a framework request object, or pass ``body=`` and ``headers=`` explicitly. When ``verify_secret`` is provided, the SDK verifies the webhook signature before returning the normalized trigger payload. When it is omitted, the SDK parses the body without verifying the signature.  ``request`` may be any object exposing the request body and headers, such as a Flask, Django, or FastAPI request. The body is read from ``.body`` (or ``.data`` / ``.get_data()``), and the headers are read from ``.headers``. Because this SDK is synchronous, async frameworks must pass an already-read raw body, for example via ``body=await request.body()``.

```python
def parse(request: Any = ..., body: Union[str, bytes, Mapping[str, Any], None] = ..., headers: Union[Mapping[str, Any], None] = ..., verify_secret: Union[str, None, Omit] = ..., tolerance: int = ...) -> VerifyWebhookResult
```

**Parameters**

| Name | Type |
|------|------|
| `request?` | `Any` |
| `body?` | `Union[str, bytes, Mapping[str, Any], None]` |
| `headers?` | `Union[Mapping[str, Any], None]` |
| `verify_secret?` | `Union[str, None, Omit]` |
| `tolerance?` | `int` |

**Returns**

`VerifyWebhookResult` — VerifyWebhookResult containing version, normalized payload, and raw payload :raises ValidationError: If ``verify_secret`` is empty, or is set but signature headers are missing :raises WebhookSignatureVerificationError: If signature verification fails :raises WebhookPayloadError: If the payload cannot be parsed

**Example**

```python
# Flask: verify the signature
@app.route('/webhooks/composio', methods=['POST'])
def webhook():
    try:
        result = composio.triggers.parse(
            request,
            verify_secret=os.environ['COMPOSIO_WEBHOOK_SECRET'],
        )
        print(f"Trigger: {result['payload']['trigger_slug']}")
        print(f"Event data: {result['payload']['payload']}")
        return 'OK', 200
    except exceptions.WebhookSignatureVerificationError:
        return 'Unauthorized', 401

# FastAPI: parse without verifying after reading the async body
@app.post('/webhooks/composio')
async def webhook(request: Request):
    raw = await request.body()
    result = composio.triggers.parse(body=raw, headers=request.headers)
    return {'trigger': result['payload']['trigger_slug']}
```

---

[View source](https://github.com/composiohq/composio/blob/next/python/composio/core/models/triggers.py#L881)