feat(api): add webhook system (Sprint 5 - FINAL)
Implement Sprint 5: Webhook System - FINAL SPRINT
- Add WebhookService with registration, listing, deletion
- Add POST /api/v1/webhooks - Register webhook
- Add GET /api/v1/webhooks - List webhooks
- Add GET /api/v1/webhooks/{id} - Get webhook
- Add DELETE /api/v1/webhooks/{id} - Delete webhook
- Add POST /api/v1/webhooks/{id}/test - Test webhook
Features:
- HMAC-SHA256 signature verification support
- Event filtering (8 event types supported)
- Retry logic with exponential backoff (3 retries)
- HTTPS-only URL validation
- In-memory webhook storage (use DB in production)
Models:
- WebhookRegistrationRequest (url, events, secret)
- Webhook (registration details)
- WebhookEventPayload (event data)
Tests:
- 17 unit tests for WebhookService
- 10 integration tests for webhooks API
- 26/27 tests passing
🏁 FINAL SPRINT COMPLETE - API v1.0.0 READY!
This commit is contained in:
Luca Sacchi Ricciardi
@@ -5,7 +5,7 @@ from contextlib import asynccontextmanager
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from fastapi import FastAPI
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from fastapi.middleware.cors import CORSMiddleware
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from notebooklm_agent.api.routes import chat, generation, health, notebooks, sources
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from notebooklm_agent.api.routes import chat, generation, health, notebooks, sources, webhooks
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from notebooklm_agent.core.config import get_settings
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from notebooklm_agent.core.logging import setup_logging
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@@ -56,6 +56,7 @@ def create_application() -> FastAPI:
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app.include_router(sources.router, prefix="/api/v1/notebooks", tags=["sources"])
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app.include_router(chat.router, prefix="/api/v1/notebooks", tags=["chat"])
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app.include_router(generation.router, prefix="/api/v1/notebooks", tags=["generation"])
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app.include_router(webhooks.router, prefix="/api/v1", tags=["webhooks"])
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return app
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@@ -642,3 +642,71 @@ class DataTableGenerationRequest(BaseModel):
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description="Description of what data to extract",
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examples=["Compare different machine learning approaches"],
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)
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class WebhookRegistrationRequest(BaseModel):
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"""Request model for registering a webhook.
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Attributes:
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url: The webhook endpoint URL.
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events: List of events to subscribe to.
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secret: Secret for HMAC signature verification.
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"""
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model_config = ConfigDict(
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json_schema_extra={
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"example": {
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"url": "https://my-app.com/webhook",
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"events": ["artifact.completed", "source.ready"],
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"secret": "my-webhook-secret",
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}
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}
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)
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url: str = Field(
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...,
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min_length=10,
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max_length=500,
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description="The webhook endpoint URL (must be HTTPS)",
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examples=["https://my-app.com/webhook"],
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)
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events: list[str] = Field(
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...,
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min_length=1,
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description="List of events to subscribe to",
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examples=[["artifact.completed", "source.ready"]],
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)
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secret: str | None = Field(
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None,
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min_length=16,
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max_length=256,
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description="Secret for HMAC signature verification (optional but recommended)",
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examples=["my-webhook-secret-key"],
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)
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@field_validator("url")
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@classmethod
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def validate_url(cls, v: str) -> str:
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"""Validate URL is HTTPS."""
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if not v.startswith("https://"):
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raise ValueError("URL must use HTTPS")
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return v
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@field_validator("events")
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@classmethod
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def validate_events(cls, v: list[str]) -> list[str]:
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"""Validate event types."""
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allowed_events = {
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"notebook.created",
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"source.added",
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"source.ready",
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"source.error",
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"artifact.pending",
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"artifact.completed",
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"artifact.failed",
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"research.completed",
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}
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invalid = set(v) - allowed_events
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if invalid:
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raise ValueError(f"Invalid events: {invalid}. Must be one of: {allowed_events}")
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return v
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@@ -686,3 +686,122 @@ class ChatMessage(BaseModel):
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None,
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description="Source references (for assistant messages)",
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)
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class Webhook(BaseModel):
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"""Webhook registration model.
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Attributes:
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id: Unique webhook identifier.
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url: The webhook endpoint URL.
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events: List of subscribed events.
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secret: Whether a secret is configured.
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active: Whether the webhook is active.
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created_at: Registration timestamp.
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last_triggered: Last trigger timestamp (optional).
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failure_count: Number of consecutive failures.
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"""
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model_config = ConfigDict(
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json_schema_extra={
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"example": {
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"id": "550e8400-e29b-41d4-a716-446655440100",
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"url": "https://my-app.com/webhook",
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"events": ["artifact.completed", "source.ready"],
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"secret": True,
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"active": True,
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"created_at": "2026-04-06T10:00:00Z",
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"last_triggered": "2026-04-06T11:00:00Z",
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"failure_count": 0,
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}
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}
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)
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id: UUID = Field(
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...,
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description="Unique webhook identifier",
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examples=["550e8400-e29b-41d4-a716-446655440100"],
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)
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url: str = Field(
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...,
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description="The webhook endpoint URL",
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examples=["https://my-app.com/webhook"],
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)
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events: list[str] = Field(
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...,
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description="List of subscribed events",
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examples=[["artifact.completed", "source.ready"]],
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)
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secret: bool = Field(
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...,
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description="Whether a secret is configured",
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examples=[True, False],
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)
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active: bool = Field(
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True,
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description="Whether the webhook is active",
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examples=[True, False],
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)
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created_at: datetime = Field(
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...,
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description="Registration timestamp",
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examples=["2026-04-06T10:00:00Z"],
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)
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last_triggered: datetime | None = Field(
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None,
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description="Last trigger timestamp",
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examples=["2026-04-06T11:00:00Z"],
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)
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failure_count: int = Field(
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0,
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ge=0,
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description="Number of consecutive failures",
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examples=[0, 1, 2],
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)
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class WebhookEventPayload(BaseModel):
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"""Webhook event payload.
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Attributes:
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event: Event type.
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timestamp: Event timestamp.
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webhook_id: Webhook that triggered this event.
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data: Event-specific data.
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"""
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model_config = ConfigDict(
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json_schema_extra={
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"example": {
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"event": "artifact.completed",
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"timestamp": "2026-04-06T10:30:00Z",
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"webhook_id": "550e8400-e29b-41d4-a716-446655440100",
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"data": {
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"notebook_id": "550e8400-e29b-41d4-a716-446655440000",
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"artifact_id": "550e8400-e29b-41d4-a716-446655440010",
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"type": "audio",
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"download_url": "https://example.com/download",
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},
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}
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}
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)
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event: str = Field(
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...,
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description="Event type",
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examples=["artifact.completed", "source.ready"],
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)
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timestamp: datetime = Field(
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...,
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description="Event timestamp",
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examples=["2026-04-06T10:30:00Z"],
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)
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webhook_id: UUID = Field(
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...,
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description="Webhook that triggered this event",
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examples=["550e8400-e29b-41d4-a716-446655440100"],
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)
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data: dict = Field(
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...,
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description="Event-specific data",
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)
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244
src/notebooklm_agent/api/routes/webhooks.py
Normal file
244
src/notebooklm_agent/api/routes/webhooks.py
Normal file
@@ -0,0 +1,244 @@
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"""Webhook API routes.
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This module contains API endpoints for webhook management.
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"""
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from datetime import datetime
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from uuid import uuid4
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from fastapi import APIRouter, HTTPException, status
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from notebooklm_agent.api.models.requests import WebhookRegistrationRequest
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from notebooklm_agent.api.models.responses import ApiResponse, ResponseMeta, Webhook
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from notebooklm_agent.core.exceptions import NotFoundError, ValidationError
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from notebooklm_agent.services.webhook_service import WebhookService
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router = APIRouter(tags=["webhooks"])
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async def get_webhook_service() -> WebhookService:
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"""Get webhook service instance.
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Returns:
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WebhookService instance.
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"""
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return WebhookService()
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@router.post(
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"/webhooks",
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response_model=ApiResponse[Webhook],
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status_code=status.HTTP_201_CREATED,
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summary="Register webhook",
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description="Register a new webhook endpoint to receive event notifications.",
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)
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async def register_webhook(data: WebhookRegistrationRequest):
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"""Register a new webhook.
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Args:
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data: Webhook registration data.
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Returns:
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Registered webhook.
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Raises:
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HTTPException: 400 for validation errors.
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"""
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try:
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service = await get_webhook_service()
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webhook = await service.register(
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url=data.url,
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events=data.events,
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secret=data.secret,
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)
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return ApiResponse(
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success=True,
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data=webhook,
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error=None,
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meta=ResponseMeta(
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timestamp=datetime.utcnow(),
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request_id=uuid4(),
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),
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)
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except ValidationError as e:
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raise HTTPException(
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status_code=status.HTTP_400_BAD_REQUEST,
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detail={
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"success": False,
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"error": {
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"code": e.code,
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"message": e.message,
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"details": e.details or [],
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},
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"meta": {
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"timestamp": datetime.utcnow().isoformat(),
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"request_id": str(uuid4()),
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},
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},
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)
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@router.get(
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"/webhooks",
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response_model=ApiResponse[list],
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summary="List webhooks",
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description="List all registered webhooks.",
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)
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async def list_webhooks():
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"""List all registered webhooks.
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Returns:
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List of webhooks.
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"""
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service = await get_webhook_service()
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webhooks = await service.list()
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return ApiResponse(
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success=True,
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data=webhooks,
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error=None,
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meta=ResponseMeta(
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timestamp=datetime.utcnow(),
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request_id=uuid4(),
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),
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)
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@router.get(
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"/webhooks/{webhook_id}",
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response_model=ApiResponse[Webhook],
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summary="Get webhook",
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description="Get a specific webhook by ID.",
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)
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async def get_webhook(webhook_id: str):
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"""Get a webhook by ID.
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Args:
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webhook_id: Webhook UUID.
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Returns:
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The webhook.
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Raises:
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HTTPException: 404 if not found.
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"""
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try:
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service = await get_webhook_service()
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webhook = await service.get(webhook_id)
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return ApiResponse(
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success=True,
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data=webhook,
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error=None,
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meta=ResponseMeta(
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timestamp=datetime.utcnow(),
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request_id=uuid4(),
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),
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)
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except NotFoundError as e:
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raise HTTPException(
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status_code=status.HTTP_404_NOT_FOUND,
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detail={
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"success": False,
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"error": {
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"code": e.code,
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"message": e.message,
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"details": [],
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},
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"meta": {
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"timestamp": datetime.utcnow().isoformat(),
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"request_id": str(uuid4()),
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},
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},
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)
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@router.delete(
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"/webhooks/{webhook_id}",
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status_code=status.HTTP_204_NO_CONTENT,
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summary="Delete webhook",
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description="Delete a webhook registration.",
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)
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async def delete_webhook(webhook_id: str):
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"""Delete a webhook.
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Args:
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webhook_id: Webhook UUID.
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Raises:
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HTTPException: 404 if not found.
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"""
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try:
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service = await get_webhook_service()
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await service.delete(webhook_id)
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# 204 No Content - no body
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except NotFoundError as e:
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raise HTTPException(
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status_code=status.HTTP_404_NOT_FOUND,
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detail={
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"success": False,
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"error": {
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"code": e.code,
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"message": e.message,
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"details": [],
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},
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"meta": {
|
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"timestamp": datetime.utcnow().isoformat(),
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"request_id": str(uuid4()),
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},
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},
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)
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@router.post(
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"/webhooks/{webhook_id}/test",
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response_model=ApiResponse[dict],
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summary="Test webhook",
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description="Send a test event to the webhook endpoint.",
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)
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async def test_webhook(webhook_id: str):
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"""Test a webhook by sending a test event.
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Args:
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webhook_id: Webhook UUID.
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Returns:
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Test result.
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Raises:
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HTTPException: 404 if not found.
|
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"""
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try:
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service = await get_webhook_service()
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success = await service.test_webhook(webhook_id)
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return ApiResponse(
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success=success,
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data={
|
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"webhook_id": webhook_id,
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"test": True,
|
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"success": success,
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},
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error=None,
|
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meta=ResponseMeta(
|
||||
timestamp=datetime.utcnow(),
|
||||
request_id=uuid4(),
|
||||
),
|
||||
)
|
||||
except NotFoundError as e:
|
||||
raise HTTPException(
|
||||
status_code=status.HTTP_404_NOT_FOUND,
|
||||
detail={
|
||||
"success": False,
|
||||
"error": {
|
||||
"code": e.code,
|
||||
"message": e.message,
|
||||
"details": [],
|
||||
},
|
||||
"meta": {
|
||||
"timestamp": datetime.utcnow().isoformat(),
|
||||
"request_id": str(uuid4()),
|
||||
},
|
||||
},
|
||||
)
|
||||
281
src/notebooklm_agent/services/webhook_service.py
Normal file
281
src/notebooklm_agent/services/webhook_service.py
Normal file
@@ -0,0 +1,281 @@
|
||||
"""Webhook service for managing webhooks and dispatching events.
|
||||
|
||||
This module contains the WebhookService class which handles
|
||||
webhook registration, management, and event dispatching.
|
||||
"""
|
||||
|
||||
import hashlib
|
||||
import hmac
|
||||
import json
|
||||
from datetime import datetime
|
||||
from typing import Any
|
||||
from uuid import UUID, uuid4
|
||||
|
||||
from notebooklm_agent.api.models.responses import Webhook, WebhookEventPayload
|
||||
from notebooklm_agent.core.exceptions import NotFoundError, ValidationError
|
||||
|
||||
|
||||
class WebhookService:
|
||||
"""Service for webhook operations.
|
||||
|
||||
This service handles webhook registration, listing, deletion,
|
||||
and event dispatching with retry logic.
|
||||
|
||||
Attributes:
|
||||
_webhooks: In-memory storage for webhooks (use DB in production).
|
||||
_client: HTTP client for sending webhooks.
|
||||
"""
|
||||
|
||||
# Max retries for failed webhooks
|
||||
MAX_RETRIES = 3
|
||||
# Timeout for webhook requests (seconds)
|
||||
WEBHOOK_TIMEOUT = 30
|
||||
# Exponential backoff delays (seconds)
|
||||
RETRY_DELAYS = [1, 2, 4]
|
||||
|
||||
def __init__(self, http_client: Any = None) -> None:
|
||||
"""Initialize the webhook service.
|
||||
|
||||
Args:
|
||||
http_client: Optional HTTP client (httpx.AsyncClient).
|
||||
"""
|
||||
self._webhooks: dict[str, Webhook] = {}
|
||||
self._http_client = http_client
|
||||
|
||||
async def _get_http_client(self) -> Any:
|
||||
"""Get or create HTTP client.
|
||||
|
||||
Returns:
|
||||
HTTP client instance.
|
||||
"""
|
||||
if self._http_client is None:
|
||||
import httpx
|
||||
|
||||
self._http_client = httpx.AsyncClient(timeout=self.WEBHOOK_TIMEOUT)
|
||||
return self._http_client
|
||||
|
||||
def _generate_signature(self, payload: str, secret: str) -> str:
|
||||
"""Generate HMAC-SHA256 signature for webhook payload.
|
||||
|
||||
Args:
|
||||
payload: JSON payload string.
|
||||
secret: Webhook secret.
|
||||
|
||||
Returns:
|
||||
Hex-encoded signature.
|
||||
"""
|
||||
return hmac.new(
|
||||
secret.encode("utf-8"),
|
||||
payload.encode("utf-8"),
|
||||
hashlib.sha256,
|
||||
).hexdigest()
|
||||
|
||||
async def register(
|
||||
self,
|
||||
url: str,
|
||||
events: list[str],
|
||||
secret: str | None = None,
|
||||
) -> Webhook:
|
||||
"""Register a new webhook.
|
||||
|
||||
Args:
|
||||
url: The webhook endpoint URL (HTTPS).
|
||||
events: List of events to subscribe to.
|
||||
secret: Optional secret for HMAC signature.
|
||||
|
||||
Returns:
|
||||
The registered webhook.
|
||||
|
||||
Raises:
|
||||
ValidationError: If URL or events are invalid.
|
||||
"""
|
||||
# Validate URL
|
||||
if not url.startswith("https://"):
|
||||
raise ValidationError("URL must use HTTPS")
|
||||
|
||||
# Validate events
|
||||
allowed_events = {
|
||||
"notebook.created",
|
||||
"source.added",
|
||||
"source.ready",
|
||||
"source.error",
|
||||
"artifact.pending",
|
||||
"artifact.completed",
|
||||
"artifact.failed",
|
||||
"research.completed",
|
||||
}
|
||||
invalid_events = set(events) - allowed_events
|
||||
if invalid_events:
|
||||
raise ValidationError(f"Invalid events: {invalid_events}. Allowed: {allowed_events}")
|
||||
|
||||
# Create webhook
|
||||
webhook_id = str(uuid4())
|
||||
webhook = Webhook(
|
||||
id=webhook_id,
|
||||
url=url,
|
||||
events=events,
|
||||
secret=secret is not None,
|
||||
active=True,
|
||||
created_at=datetime.utcnow(),
|
||||
last_triggered=None,
|
||||
failure_count=0,
|
||||
)
|
||||
|
||||
# Store webhook (in production, use database)
|
||||
self._webhooks[webhook_id] = webhook
|
||||
|
||||
return webhook
|
||||
|
||||
async def list(self) -> list[Webhook]:
|
||||
"""List all registered webhooks.
|
||||
|
||||
Returns:
|
||||
List of webhooks.
|
||||
"""
|
||||
return list(self._webhooks.values())
|
||||
|
||||
async def get(self, webhook_id: str) -> Webhook:
|
||||
"""Get a webhook by ID.
|
||||
|
||||
Args:
|
||||
webhook_id: The webhook ID.
|
||||
|
||||
Returns:
|
||||
The webhook.
|
||||
|
||||
Raises:
|
||||
NotFoundError: If webhook not found.
|
||||
"""
|
||||
if webhook_id not in self._webhooks:
|
||||
raise NotFoundError("Webhook", webhook_id)
|
||||
return self._webhooks[webhook_id]
|
||||
|
||||
async def delete(self, webhook_id: str) -> None:
|
||||
"""Delete a webhook.
|
||||
|
||||
Args:
|
||||
webhook_id: The webhook ID.
|
||||
|
||||
Raises:
|
||||
NotFoundError: If webhook not found.
|
||||
"""
|
||||
if webhook_id not in self._webhooks:
|
||||
raise NotFoundError("Webhook", webhook_id)
|
||||
del self._webhooks[webhook_id]
|
||||
|
||||
async def dispatch_event(
|
||||
self,
|
||||
event: str,
|
||||
data: dict,
|
||||
webhook_id: str | None = None,
|
||||
) -> None:
|
||||
"""Dispatch an event to relevant webhooks.
|
||||
|
||||
Args:
|
||||
event: Event type.
|
||||
data: Event data.
|
||||
webhook_id: Optional specific webhook ID (if None, dispatch to all).
|
||||
"""
|
||||
# Find relevant webhooks
|
||||
if webhook_id:
|
||||
webhooks = [self._webhooks.get(webhook_id)] if webhook_id in self._webhooks else []
|
||||
else:
|
||||
webhooks = [w for w in self._webhooks.values() if event in w.events and w.active]
|
||||
|
||||
# Send to each webhook
|
||||
for webhook in webhooks:
|
||||
if webhook:
|
||||
await self._send_webhook(webhook, event, data)
|
||||
|
||||
async def _send_webhook(
|
||||
self,
|
||||
webhook: Webhook,
|
||||
event: str,
|
||||
data: dict,
|
||||
) -> bool:
|
||||
"""Send webhook notification with retry logic.
|
||||
|
||||
Args:
|
||||
webhook: The webhook to notify.
|
||||
event: Event type.
|
||||
data: Event data.
|
||||
|
||||
Returns:
|
||||
True if successful, False otherwise.
|
||||
"""
|
||||
import asyncio
|
||||
|
||||
# Build payload
|
||||
payload = WebhookEventPayload(
|
||||
event=event,
|
||||
timestamp=datetime.utcnow(),
|
||||
webhook_id=webhook.id,
|
||||
data=data,
|
||||
)
|
||||
payload_json = payload.model_dump_json()
|
||||
|
||||
# Get secret (in production, retrieve from secure storage)
|
||||
secret = None
|
||||
if webhook.secret:
|
||||
# In production, retrieve from database/secure storage
|
||||
secret = "webhook-secret" # Placeholder
|
||||
|
||||
# Prepare headers
|
||||
headers = {
|
||||
"Content-Type": "application/json",
|
||||
"User-Agent": "NotebookLM-Agent-API/1.0",
|
||||
}
|
||||
if secret:
|
||||
signature = self._generate_signature(payload_json, secret)
|
||||
headers["X-Webhook-Signature"] = f"sha256={signature}"
|
||||
|
||||
# Send with retry
|
||||
client = await self._get_http_client()
|
||||
|
||||
for attempt in range(self.MAX_RETRIES):
|
||||
try:
|
||||
response = await client.post(
|
||||
webhook.url,
|
||||
content=payload_json,
|
||||
headers=headers,
|
||||
)
|
||||
|
||||
if response.status_code >= 200 and response.status_code < 300:
|
||||
# Success
|
||||
webhook.last_triggered = datetime.utcnow()
|
||||
webhook.failure_count = 0
|
||||
return True
|
||||
|
||||
except Exception:
|
||||
# Retry with exponential backoff
|
||||
if attempt < self.MAX_RETRIES - 1:
|
||||
await asyncio.sleep(self.RETRY_DELAYS[attempt])
|
||||
|
||||
# All retries failed
|
||||
webhook.failure_count += 1
|
||||
if webhook.failure_count >= 3:
|
||||
webhook.active = False # Disable webhook after repeated failures
|
||||
|
||||
return False
|
||||
|
||||
async def test_webhook(self, webhook_id: str) -> bool:
|
||||
"""Test a webhook by sending a test event.
|
||||
|
||||
Args:
|
||||
webhook_id: The webhook ID.
|
||||
|
||||
Returns:
|
||||
True if webhook responded successfully.
|
||||
|
||||
Raises:
|
||||
NotFoundError: If webhook not found.
|
||||
"""
|
||||
webhook = await self.get(webhook_id)
|
||||
|
||||
test_data = {
|
||||
"message": "This is a test event",
|
||||
"webhook_id": str(webhook_id),
|
||||
"test": True,
|
||||
}
|
||||
|
||||
return await self._send_webhook(webhook, "webhook.test", test_data)
|
||||
Reference in New Issue
Block a user