AFIR SDK - Python SDK for API Failure Recorder

A lightweight Python SDK for monitoring and tracking API failures in your web applications.

Installation

Using pip

pip install afir-sdk

Using uv

uv add afir-sdk

Quick Start

FastAPI Integration

from fastapi import FastAPI
from afir_sdk import AFIRConfig
from afir_sdk.middleware.fastapi import AFIRMiddleware

# Configure the SDK
config = AFIRConfig(
    api_key="your-api-key",
    endpoint="http://localhost:8000/api/v1",  # Your AFIR server
    service_name="my-api",
    environment="prod"
)

# Create your app
app = FastAPI()

# Add the middleware
app.add_middleware(AFIRMiddleware, config=config)

# Your routes here
@app.get("/users/{user_id}")
def get_user(user_id: int):
    # If this returns a 4xx/5xx, it will be tracked automatically
    return {"user_id": user_id}

Manual Event Tracking

from afir_sdk import AFIRClient, AFIRConfig

config = AFIRConfig(
    api_key="your-api-key",
    service_name="my-service",
    environment="prod"
)

client = AFIRClient(config)

# Track an event manually
client.track_event(
    method="POST",
    path="/api/payment",
    status_code=500,
    latency_ms=1500,
    error_payload={"error": "Payment gateway timeout"}
)

# Always shutdown gracefully
client.shutdown()

Configuration Options

Features

• ✅ Automatic failure detection (4xx/5xx responses)
• ✅ Request batching for efficiency
• ✅ Background thread for non-blocking sends
• ✅ Correlation ID support for tracing
• ✅ Automatic header redaction (Authorization, Cookie)
• ✅ Graceful shutdown with flush

License

MIT