But you can also declare the Response that you want to be used (e.g. any Response subclass), in the path operation decorator using the response_class parameter.The contents that you return from your path operation function will be put inside of that Response....
fromfastapiimportFastAPIfromfastapi.responsesimportStreamingResponseimportioimportxlsxwriter app=FastAPI()@app.get("/download")asyncdefgenerate_excel():# 创建一个内存中的文件流output=io.BytesIO()# 创建一个Excel文件workbook=xlsxwriter.Workbook(output,{'in_memory':True})worksheet=w...
from fastapi import FastAPI, Response import shutil import os app = FastAPI() @app.get("/download/{filename}") async def download_file(filename: str): file_path = f"./files/{filename}" if not os.path.exists(file_path): return Response(content="File not found", status_code=404) r...
from fastapi.responses import JSONResponse, HTMLResponse, FileResponse app = FastAPI() #创建访问路径 @app.get("/user") def user(): return JSONResponse( content = { "msg": "get user" }, status_code = 202, headers = { "a": "b" }) # 给返回的header增加新的key:a @app.get("/")...
File 是直接从 Form 继承的类。 But remember that when you import Query, Path, File and others from fastapi, those are actually functions that return special classes. 但是请记住,当您从 fastapi 中导入 Query、Path、File 和其他文件时,这些实际上是返回特殊类的函数。
from fastapi import FastAPI, Response import shutil import os app = FastAPI() @app.get("/download/{filename}") async def download_file(filename: str): file_path = f"./files/{filename}" if not os.path.exists(file_path): return Response(content="File not found", status_code=404) r...
In this example, the messages will be written to thelog.txtfileafterthe response is sent. If there was a query in the request, it will be written to the log in a background task. And then another background task generated at thepath operation functionwill write a message using theemail...
在FastAPI中实现内存缓存(InMemory 缓存)非常简单,无需依赖外部服务(如Redis),适合单进程开发环境或临时缓存需求。 内存缓存的特点: 单进程适用:仅在单个应用进程内有效,多进程或多实例部署时缓存不共享。 数据易失性:应用重启后缓存数据会丢失。 简单轻量:无需外部服务,适合开发环境或小型临时缓存需求。 内存缓存适...
db_url="sqlite://:memory:", modules={"models": [__name__]}, generate_schemas=True, ):await_initial_users() add_pagination(app)yieldapp = FastAPI(title="Tortoise ORM Pagination example", lifespan=lifespan) fastapi_cdn_host.patch_docs(app)@app.post("/users", response_model=UserOut)as...
return FileResponse("server_monitor_frontend/index.html") @app.get("/stats") async def get_server_stats(): # Your server stats logic here return {"cpu_percent": 50, "memory_percent": 60, "disk_percent": 70} if __name__ == "__main__": ...