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Lumberjack

FastAPI Integration

Lumberjack provides seamless integration with FastAPI applications through automatic instrumentation, async request tracing, and comprehensive error handling.

Installation

Section titled “Installation”
Terminal window
# Install with FastAPI support
uv add 'lumberjack_sdk[fastapi]'

Basic Setup

Section titled “Basic Setup”
from fastapi import FastAPI
from lumberjack_sdk import Lumberjack, LumberjackFastAPI
import logging


app = FastAPI(title="My API")


# Initialize Lumberjack first
Lumberjack.init(project_name="my-fastapi-app")


# Auto-instrument FastAPI
LumberjackFastAPI.instrument(app)


@app.get("/")
async def root():
    logging.info("Root endpoint called")
    return {"message": "Hello World"}


@app.get("/users/{user_id}")
async def get_user(user_id: int):
    logging.info(f"Getting user {user_id}")
    # Automatic request tracing and logging
    return {"user_id": user_id}

Next Steps

Section titled “Next Steps”