Complete Bugsly Setup for FastAPI

Your FastAPI application has bugs you don't know about yet. Error monitoring with Bugsly catches them before your users file complaints.

Prerequisites

Before you begin, make sure you have a Bugsly account and a FastAPI project ready to instrument. You'll need your project DSN from the Bugsly dashboard — find it under Settings > Projects > Client Keys.

Step-by-Step Integration

1. Add the Bugsly package to your FastAPI project:

pip install bugsly-sdk[fastapi]

1. Configure the SDK at your application's entry point:

import bugsly_sdk
from bugsly_sdk.integrations.fastapi import FastApiIntegration

bugsly_sdk.init(
    dsn="YOUR_BUGSLY_DSN",
    integrations=[FastApiIntegration()],
    traces_sample_rate=1.0,
)

app = FastAPI()

1. Deploy your changes and verify events appear in the Bugsly dashboard.

Fine-Tuning Your Setup

After the basic integration works, consider these adjustments for FastAPI:

• Sampling rate: Adjust tracesSampleRate based on your traffic volume. High-traffic apps should sample at 0.1–0.3 to control costs.
• Environment tags: Tag events with production, staging, or development to filter noise.
• Release tracking: Pass your version string so Bugsly can track regressions across deployments.
• Custom context: Attach user IDs, request metadata, or business-specific data to events for richer debugging.

Bugsly's error monitoring for FastAPI runs with minimal overhead. The SDK is designed to be lightweight, batching events and sending them asynchronously so your application performance stays unaffected.

Next Steps

Once error monitoring is live, set up issue ownership rules to automatically assign errors to the right team. Configure integration with your project management tool to create tickets from Bugsly issues. Enable weekly reports to track your team's progress on reducing error rates across releases.