Question 1

How to set up rate limiting with FastAPI Guard?

Accepted Answer

Use the rate_limit parameter in SecurityConfig for global limits or the @guard_deco.rate_limit decorator for route-specific controls. Enable Redis for distributed state to handle multi-instance deployments effectively.

Question 2

FastAPI Guard vs FastAPI's built-in security: which should I use?

Accepted Answer

FastAPI Guard offers advanced features like IP filtering and geolocation blocking, while FastAPI's built-in tools focus on basics like CORS. Choose Guard for comprehensive protection, but it adds more configuration complexity.

Question 3

Does FastAPI Guard block cloud provider IPs?

Accepted Answer

Yes, configure the block_cloud_providers option in SecurityConfig with values like 'AWS', 'GCP', or 'Azure' to block requests from major cloud IP ranges, helping prevent abuse from scalable infrastructure.

Question 4

How to customize security headers in FastAPI Guard?

Accepted Answer

Set the security_headers dictionary in SecurityConfig with CSP, HSTS, and other headers following OWASP guidelines, as detailed in the HTTP Security Headers section with examples for common policies.

Question 5

What's the performance impact of FastAPI Guard?

Accepted Answer

It adds middleware overhead per request; impact varies with enabled features. Use Redis for distributed state to reduce latency in multi-instance setups, but benchmark with your API's traffic patterns.

Question 6

Can I use FastAPI Guard without an IPInfo token?

Accepted Answer

Yes, but geolocation features like country blocking will be disabled. You can implement a custom GeoIPHandler or skip geolocation entirely, though this limits some security capabilities.

Question 7

How to handle suspicious activity detection?

Accepted Answer

Enable penetration detection in SecurityConfig with auto_ban_threshold for automatic IP banning, or use the detect_penetration_attempt function for custom logging and response handling on specific routes.

FastAPI Guard

What is FastAPI Guard?

Overview

Use Cases

Best For

Found a gem we're missing?

Not Ideal For

Pros & Cons

Pros

Cons

Frequently Asked Questions