fastapi

Implement FastAPI patterns for JWT authentication, async data access, and validation.

Updated Aug 27, 2026

Search Tags:#api #pydantic #fastapi #jwt #async #sqlalchemy

Ready to run

npx skills add https://github.com/ederheisler/agent-skills --skill fastapi-ederheisler

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: fastapi
Source: https://github.com/ederheisler/agent-skills/tree/main/skills/fastapi
Command: npx skills add https://github.com/ederheisler/agent-skills --skill fastapi-ederheisler

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill provides production-grade FastAPI patterns and best practices, enabling developers to build secure, scalable APIs with modern Python tooling.

Core Features & Use Cases

Production-tested patterns for FastAPI with Pydantic v2, SQLAlchemy 2.0 async, and JWT authentication.
Domain-based project structure with clear separation of concerns (auth, items), async I/O, and dependency injection.
Guidance for testing, deployment, and common pitfalls, including openAPI, CORS, and validation.

Quick Start

Create a new FastAPI project, install dependencies, and run the app to explore the provided patterns.

Frequently Asked Questions about fastapi

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I structure a FastAPI project for domain-driven design and async database access?▼

FastAPI authentication uses JWT-based patterns to secure endpoints, combined with Pydantic v2 for robust validation and dependency injection to manage user verification across domain-based modules.

What is the best way to handle async data access and validation in FastAPI?▼

FastAPI async data access leverages SQLAlchemy 2.0 async patterns for non-blocking I/O, while Pydantic v2 schemas enforce robust validation and dependency injection manages database sessions.

Does FastAPI work with JWT authentication and Pydantic v2 for production APIs?▼

FastAPI supports JWT authentication and Pydantic v2 for production APIs, providing secure token-based auth, robust validation, correct HTTP status codes, and dependency injection across scalable endpoints.

What are common FastAPI pitfalls with CORS, OpenAPI, and validation?▼

Common FastAPI pitfalls include misconfigured CORS, incomplete OpenAPI schemas, and insufficient Pydantic validation, resolved by applying production-grade patterns for correct status codes and comprehensive input checks.

How do I test and deploy a scalable async FastAPI application?▼

Testing and deploying a scalable async FastAPI application requires domain-driven structure, async I/O, and dependency injection patterns to ensure consistent behavior across environments during deployment.