How to achieve reasonable splitting and modular organization of requests in FastAPI
Introduction:
FastAPI is a high-performance web framework based on Python, which provides asynchronous support and automated API document generation , so when developing large projects, we need to consider how to reasonably split and modularize requests. This article will introduce a method to achieve reasonable splitting and modular organization of requests in FastAPI, and give corresponding code examples.
1. Why we need reasonable splitting and modular organization of requests
As the scale of the project increases, the number and complexity of the API will also increase. If all request processing functions are written in one file, the code will be lengthy, poorly readable, and difficult to maintain. In addition, if a request involves the operation of multiple database tables, the logic can be separated through reasonable splitting to reduce coupling.
2. How to reasonably split and modularize requests
from fastapi import FastAPI app = FastAPI() # 引入其他模块中的路由 from app import module1, module2 app.include_router(module1.router) app.include_router(module2.router)
from fastapi import APIRouter router = APIRouter() @router.get("/api/module1/") def module1_handler(): return {"message": "This is module 1."}
from fastapi import APIRouter router = APIRouter() @router.get("/api/module2/") def module2_handler(): return {"message": "This is module 2."} @router.get("/api/module2/{id}") def module2_detail_handler(id: int): return {"message": f"This is detail page of module 2 with id {id}."}
from fastapi import FastAPI app = FastAPI() from app import module1, module2 app.include_router(module1.router) app.include_router(module2.router)
3. Summary
By reasonably splitting and modularizing requests, the code structure can be made clearer, logical separation can be achieved, and the readability and maintainability of the code can be improved. In FastAPI, we can use APIRouter to create modular routes and add them to the application through app.include_router(). This approach can help us better organize and manage request processing functions.
Reference materials:
https://fastapi.tiangolo.com/tutorial/bigger-applications/
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