Web API Controllers

Description

Simple Web API controller framework for FastAPI

Installation

To install this package, use pip:

pip install webapicontrollers

Example

from fastapi import FastAPI, HTTPException, Request
from fastapi.responses import JSONResponse
from webapicontrollers import APIController, Get, Post, Patch, Delete, Put, RoutePrefix



@RoutePrefix('/test')
class TestController(APIController):

    def __init__(self, app: FastAPI) -> None:
        super().__init__(app, cors_origins=['*'])    
    
    @Get('/', name='Optional name for OpenAPI docs', description='Optional description for OpenAPI docs')
    async def get(self) -> dict:
        return {"method": "GET", "path": "/"}  
    
    @Get('/400')
    async def get_bad_request(self) -> dict:
        raise HTTPException(status_code=400, detail="Bad Request")
    
    @Get('/401')
    async def get_not_authorized(self) -> dict:
        raise HTTPException(status_code=401, detail="Not Authorized")
    
    @Get('/403')
    async def get_forbidden(self) -> dict:
        raise HTTPException(status_code=403, detail="Forbidden")
    
    @Get('/404')
    async def get_not_found(self) -> dict:
        raise HTTPException(status_code=404, detail="Not Found")
    
    @Get('/405')
    async def get_method_not_allowed(self) -> dict:
        raise HTTPException(status_code=405, detail="Method Not Allowed")
    
    @Get('/500')
    async def get_internal_server_error(self) -> dict:
        raise HTTPException(status_code=500, detail="Internal Server Error")
    
    @Get('/{arg}')
    async def get_with_arg(self, arg) -> dict:
        return {"method": "GET", "path": "/", "arg": arg}

    @Post('/')
    async def post(self) -> dict:
        return {"method": "POST", "path": "/"}

    @Post('/{arg}')
    async def post_with_arg(self, arg) -> dict:
        return {"method": "POST", "path": "/", "arg": arg}
    
    @Put('/')
    async def put(self) -> dict:
        return {"method": "PUT", "path": "/"}
    
    @Put('/{arg}')
    async def put_with_arg(self, arg) -> dict:
        return {"method": "PUT", "path": "/", "arg": arg}
    
    @Patch('/')
    async def patch(self) -> dict:
        return {"method": "PATCH", "path": "/"}
    
    @Patch('/{arg}')
    async def patch_with_arg(self, arg) -> dict:
        return {"method": "PATCH", "path": "/", "arg": arg}
    
    @Delete('/')
    async def delete(self) -> dict:
        return {"method": "DELETE", "path": "/"}
    
    @Delete('/{arg}')
    async def delete_with_arg(self, arg) -> dict:
        return {"method": "DELETE", "path": "/", "arg": arg}
    
    def bad_request(self, request: Request, exc: HTTPException) -> JSONResponse:
        # Custom handling code
        return super().bad_request(request, exc)
    
    def not_authorized(self, request: Request, exc: HTTPException) -> JSONResponse:
        # Custom handling code
        return super().not_authorized(request, exc)
    
    def forbidden(self, request: Request, exc: HTTPException) -> JSONResponse:
        # Custom handling code
        return super().forbidden(request, exc)
    
    def not_found(self, request: Request, exc: HTTPException) -> JSONResponse:
        # Custom handling code
        return super().not_found(request, exc)
    
    def method_not_allowed(self, request: Request, exc: HTTPException) -> JSONResponse:
        # Custom handling code
        return super().method_not_allowed(request, exc)
    
    def internal_server_error(self, request: Request, exc: HTTPException) -> JSONResponse:
        # Custom handling code
        return super().internal_server_error(request, exc)


app = FastAPI()

TestController(app)

Known Issues

If you overide the handler methods such as not_found etc. in more than one cotnroller only one handler will be registered on a last one wins basis. Implementing a per route prefix handling system is on the to do list.

If you create a base controller class and then overide it's methods in a derived class the path needs to be the same in both methods. If you don't do this then FastAPI gets confused about which handler maps to which path.

Caution

This project is in a very early state and might not be very useful to anyone yet. There is no support avilable, use at your own risk.

License

This project is licensed under the MIT License.