#fastware

A fast, batteries-included ASGI framework. The FastAPI alternative.

Current version: 0.1.0

#Install

pip install fastware

#Minimal example

from fastware import Router, create_app, serve

router = Router()

@router.get("/hello/{name}")
async def hello(request):
    return {"message": f"Hello, {request.path_params['name']}!"}

app = create_app(router)
serve(app, foreground=True, host="127.0.0.1", port=8000)

Run it and visit http://127.0.0.1:8000/hello/world to see {"message": "Hello, world!"}.

#Features

#Why fastware?

• msgspec for JSON -- 10-75x faster serialization than Pydantic. No schema compilation step, no startup penalty.
• Granian server included -- Rust-based ASGI server with managed lifecycle, PID files, and signal handling. No need to install or configure a separate server.
• Batteries included -- SSE broadcasting, dependency injection, authentication, middleware suite, test client, background tasks, and structured logging are all built in.
• Minimal core dependencies -- The framework core depends only on msgspec and granian. Everything else is opt-in via extras.

#Dependencies

The table below lists all runtime and optional dependencies that fastware can install. The core has only 2 required packages (msgspec for JSON serialization and granian for ASGI serving); all others are opt-in via 6 extras groups (auth, logging, dev, testing, mcp, pydantic) that add specific capabilities without bloating the default install:

#Project structure

The source tree consists of 20 modules organized by feature area (routing, responses, middleware, SSE, server, auth, DI, testing, and more). Each module is independently importable with no circular dependencies, and optional features use late imports to avoid loading unused packages:

fastware/
├── __init__.py
├── __main__.py
├── app.py
├── audit.py
├── auth.py
├── config.py
├── dev.py
├── di.py
├── error_log.py
├── features.py
├── logging.py
├── mcp.py
├── middleware.py
├── request.py
├── responses.py
├── routing.py
├── server.py
├── sse.py
├── tasks.py
├── testing.py
├── types.py
└── websocket.py