fastapi实现文件下载链接

以下代码示例
假设文件夹D:/codes/files下有个content1.pdf
浏览器访问http://ip:8001/download/content1.pdf即可下载文件

from fastapi import FastAPI
from fastapi.responses import FileResponse
import os

app = FastAPI()

async def download_file(filename: str):
    file_path = f"D:/codes/files/{filename}"
    if not os.path.exists(file_path):
        return {"error": "File not found"}
    return FileResponse(file_path, media_type='application/octet-stream', filename=filename)


app.get("/download/{filename}")(download_file)

if __name__ == "__main__":
    import uvicorn
    uvicorn.run("main:app", host="0.0.0.0", port=8001, reload=True)