fast-routes

Generate typed HTTP clients from FastAPI apps automatically.
This library inspects your FastAPI app and produces a fully usable async client with request/response models — ideal for service-to-service communication or rapid prototyping.

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🚀 Features

• Extracts all FastAPI routes.
• Generates:
  • Request/response models
  • Method handlers (with typed parameters)
  • A reusable HTTP client class
• Provides a download endpoint (/fastroutes) and a CLI tool to fetch generated code.

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📦 Installation

pip install git+https://github.com/draew6/fastroutes

🛠️ Usage

1. Add FastRoutes to your FastAPI app:

from fastapi import FastAPI
from fastroutes import FastRoutes

app = FastAPI()
FastRoutes(app, name="MyVeryNiceClient").add_route_to_fastapi()

This will add a /fastroutes endpoint that servers your generated client code.

2. Download the generated client code:

fastroutes http://localhost:8000/fastroutes output_file.py

This will save the generated code to output_file.py.