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Description:

fastwapi 0.1.3

Description
FastWAPI is a simple lightweight Websocket framework based on Starlette, which provide easy-to-use Python decorator to parse JSON incoming message.
It's in the same spirit as FastAPI, where each decorator map to an HTTP path. But here, each decorator map to a Pydantic object, and each object map to a function.
Installation
pip install fastwapi
Disclaimer

The module is available, but far from finished & polished, please do not use it in production.

Roadmap

Add authent middleware
Add background job to asynchrounosly send JSON to the client

Usage
See example/main.py for complete code.
Getting started in three steps :
Instanciates the framework and declare the Websocket HTTP endpoint.
import uvicorn
from fastwapi import FastWAPI, WebSocket
from pydantic import BaseModel

app = FastWAPI(endpoint="/ws")

Define Pyndantic model, for incoming and outgoing messages.
class CM(BaseModel):
counter: int

class SD(BaseModel):
name: str

Map each Pydantic model to your function.
@app.parse(CM)
async def parse_CM(websocket: WebSocket, data: CM):
print("RECEIVED CM : ", data)
await websocket.send_json(data.dict())

@app.parse(SD)
async def parse_SD(websocket: WebSocket, data: CM):
print("RECEIVED SD : ", data)
await websocket.send_json(data.dict())

Launch your app
Either through command line "uvicorn main:app" or directly inside the python file :
if __name__ == "__main__":
uvicorn.run("main:app", port=5000, log_level="info")