# Webhooks API

I webhook permettono di ricevere callback HTTP quando si verificano eventi in
Synapse. Perfetti per attivare automazione esterna, inviare notifiche o
sincronizzare con altri sistemi.

## Endpoint

### POST /webhooks

Registra un nuovo webhook.

```bash
curl -X POST https://synapse.schaefer.zone/webhooks \
  -H "Authorization: Bearer YOUR_MIND_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "url": "https://my-app.com/webhook",
    "events": "memory.*",
    "secret": "my-hmac-secret-min-8-chars"
  }'
```

Risposta:

```json
{
  "id": "wh_001",
  "url": "https://my-app.com/webhook",
  "events": ["memory.*"],
  "enabled": true,
  "created_at": "2026-06-27T..."
}
```

### GET /webhooks

Elenca tutti i webhook della mente corrente.

```bash
curl -H "Authorization: Bearer YOUR_MIND_KEY" \
     https://synapse.schaefer.zone/webhooks
```

### GET /webhooks/:id

Ottiene un singolo webhook.

```bash
curl -H "Authorization: Bearer YOUR_MIND_KEY" \
     https://synapse.schaefer.zone/webhooks/wh_001
```

### PUT /webhooks/:id

Aggiorna un webhook (URL, eventi, secret o flag enabled).

```bash
curl -X PUT https://synapse.schaefer.zone/webhooks/wh_001 \
  -H "Authorization: Bearer YOUR_MIND_KEY" \
  -H "Content-Type: application/json" \
  -d '{"enabled": false}'
```

### DELETE /webhooks/:id

Elimina un webhook.

```bash
curl -X DELETE -H "Authorization: Bearer YOUR_MIND_KEY" \
     https://synapse.schaefer.zone/webhooks/wh_001
```

## Tipi di evento

| Pattern | Si attiva quando |
|---------|------------|
| `memory.*` | Qualsiasi evento memory |
| `memory.store` | Nuova memoria salvata |
| `memory.update` | Memoria aggiornata |
| `memory.delete` | Memoria eliminata |
| `chat.*` | Qualsiasi evento chat |
| `chat.message_received` | Nuovo messaggio dall'umano |
| `task.*` | Qualsiasi evento task |
| `task.created` | Nuova attività creata |
| `task.completed` | Attività contrassegnata come completata |
| `*` | Tutti gli eventi |

## Payload del webhook

Quando si verifica un evento, Synapse invia una POST alla sua URL:

```json
{
  "event": "memory.store",
  "timestamp": "2026-06-27T...",
  "mind_id": "m_xyz789",
  "data": {
    "id": "mem_001",
    "category": "fact",
    "key": "user_name",
    "content": "Michael Schäfer"
  }
}
```

## Verifica della firma

Se imposta un `secret`, Synapse firma ogni payload con HMAC-SHA256:

```
X-Synapse-Signature: sha256=<hex-hmac>
```

Verifichi nel suo handler:

```python
import hmac, hashlib

def verify_signature(payload_body: bytes, signature: str, secret: str) -> bool:
    expected = hmac.new(
        secret.encode(),
        payload_body,
        hashlib.sha256
    ).hexdigest()
    return hmac.compare_digest(f"sha256={expected}", signature)
```

## Modello: sync in tempo reale

```python
# Your webhook handler
@app.post("/webhook")
async def handle_webhook(request):
    body = await request.body()
    signature = request.headers.get("X-Synapse-Signature", "")
    if not verify_signature(body, signature, WEBHOOK_SECRET):
        return 401

    event = json.loads(body)
    if event["event"] == "memory.store":
        # Sync to another system
        sync_to_external(event["data"])
    elif event["event"] == "chat.message_received":
        # Trigger agent wake-up
        notify_agent(event["data"])
```

## Prossimi passi

- [Cron & Scheduler](/docs/api/cron)
- [Guida automazione webhook](/docs/guides/webhook-automation)