# Otomasi Webhook

Webhook memungkinkan Anda memicu sistem eksternal saat event Synapse aktif.
Panduan ini mencakup pola otomasi umum.

## Pola Umum

### Pola 1: Notifikasi pada Memori Critical

Kirim pesan Slack saat memori critical disimpan:

```python
# Webhook handler (your server)
@app.post("/webhook")
async def handle(request):
    payload = await request.json()
    
    # Verify signature
    if not verify_signature(payload, request.headers):
        return 401
    
    if payload["event"] == "memory.store":
        memory = payload["data"]
        if memory.get("priority") == "critical":
            # Send Slack notification
            await slack.post(
                f"🚨 Critical memory stored: {memory['key']}\n{memory['content'][:200]}"
            )
    
    return 200
```

Daftarkan 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.store",
    "secret": "my-hmac-secret"
  }'
```

### Pola 2: Sinkronisasi ke Sistem Eksternal

Sinkronkan memori ke Notion, Obsidian, atau KB eksternal apa pun:

```python
@app.post("/webhook")
async def sync_to_notion(request):
    payload = await request.json()
    
    if payload["event"] == "memory.store":
        memory = payload["data"]
        # Create Notion page
        await notion.create_page(
            title=memory["key"],
            content=memory["content"],
            tags=memory.get("tags", [])
        )
    
    elif payload["event"] == "memory.delete":
        # Delete from Notion
        await notion.delete_page(memory_id=payload["data"]["id"])
    
    return 200
```

### Pola 3: Picu CI/CD

Picu deployment saat memori "release" disimpan:

```python
@app.post("/webhook")
async def trigger_deploy(request):
    payload = await request.json()
    
    if payload["event"] == "memory.store":
        memory = payload["data"]
        if memory.get("key", "").startswith("release_"):
            # Trigger GitLab pipeline
            await gitlab.trigger_pipeline(
                project="synapse",
                ref="main",
                variables={"RELEASE_MEMORY_ID": memory["id"]}
            )
    
    return 200
```

### Pola 4: Bangunkan Agen pada Pesan Manusia

Picu menjalankan agen LLM saat manusia mengirim pesan chat:

```python
@app.post("/webhook")
async def wake_agent(request):
    payload = await request.json()
    
    if payload["event"] == "chat.message_received":
        message = payload["data"]
        # Queue agent processing job
        await job_queue.enqueue(
            "process_message",
            message_id=message["id"],
            content=message["content"]
        )
    
    return 200
```

### Pola 5: Agregasi Metrik

Lacak pertumbuhan memori, aktivitas chat, penyelesaian tugas:

```python
@app.post("/webhook")
async def track_metrics(request):
    payload = await request.json()
    event = payload["event"]
    
    metrics = {
        "memory.store": "memories_stored_total",
        "memory.delete": "memories_deleted_total",
        "chat.message_received": "messages_received_total",
        "task.created": "tasks_created_total",
        "task.completed": "tasks_completed_total",
    }
    
    if event in metrics:
        await prometheus.increment(metrics[event])
    
    return 200
```

## Verifikasi Tanda Tangan

Selalu verifikasi tanda tangan webhook untuk mencegah spoofing:

```python
import hmac
import hashlib

def verify_signature(payload_body: bytes, headers, secret: str) -> bool:
    signature = headers.get("X-Synapse-Signature", "")
    if not signature.startswith("sha256="):
        return False
    
    expected = hmac.new(
        secret.encode(),
        payload_body,
        hashlib.sha256
    ).hexdigest()
    
    return hmac.compare_digest(f"sha256={expected}", signature)
```

## Logika Coba Ulang

Synapse mencoba ulang webhook yang gagal dengan exponential backoff. Handler Anda harus:

1. **Mengembalikan 200 dengan cepat** — jangan lakukan pekerjaan berat secara sinkron
2. **Antri pekerjaan** — gunakan sistem pekerjaan latar belakang
3. **Idempoten** — event yang sama mungkin dikirim dua kali

```python
@app.post("/webhook")
async def handle(request):
    payload = await request.json()
    # Queue for async processing
    await job_queue.enqueue("process_webhook", payload)
    # Return immediately
    return 200
```

## Debugging Webhook

### Periksa riwayat pengiriman

Pengiriman webhook dicatat. Periksa pengiriman webhook terbaru Anda:

```bash
# Get webhook details including recent deliveries
curl -H "Authorization: Bearer YOUR_MIND_KEY" \
     https://synapse.schaefer.zone/webhooks/wh_001
```

### Tes webhook secara manual

```bash
# Trigger a test event
curl -X POST https://synapse.schaefer.zone/webhooks/wh_001/test \
  -H "Authorization: Bearer YOUR_MIND_KEY"
```

### Masalah umum

| Masalah | Perbaikan |
|-------|-----|
| Respons 4xx | Periksa handler Anda mengembalikan 200 |
| Respons 5xx | Error server — periksa log aplikasi Anda |
| Timeout | Kembalikan 200 cepat, antri pekerjaan asinkron |
| Pengiriman duplikat | Buat handler idempoten |
| Ketidakcocokan tanda tangan | Verifikasi secret benar |

## Praktik Terbaik

> [!TIP]
> - **Selalu verifikasi tanda tangan** — jangan pernah lewati ini
> - **Kembalikan 200 cepat** — jangan blokir Synapse
> - **Idempoten** — tangani pengiriman duplikat
> - **Gunakan event spesifik** — `memory.store` bukan `*`
> - **Pantau kegagalan pengiriman** — siapkan peringatan

## Langkah Berikutnya

- [Webhooks API](/docs/api/webhooks)
- [Cron & Scheduler](/docs/api/cron)
- [Agen LLM Persisten](/docs/guides/persistent-llm-agent)