python 详解如何写flask文件下载接口

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Created on Sat Oct 23 19:53:18 2021
@author: huyi
"""
 
from flask import Flask, request, make_response, send_from_directory
from gevent.pywsgi import WSGIServer
from gevent import monkey
 
# 将python标准的io方法，都替换成gevent中的同名方法，遇到io阻塞gevent自动进行协程切换
monkey.patch_all()
app = Flask(__name__)
 
@app.route("/download", methods=['GET'])
def download_file():
 get_data = request.args.to_dict()
 file_path = get_data.get('fileName')
 
 response = make_response(
  send_from_directory('/Users/huyi/Movies/Videos',file_path,as_attachment=True))
 response.headers["Content-Disposition"] = "attachment; filename={}".format(
  file_path.encode().decode('latin-1'))
 return response
 
if __name__ == '__main__':
 WSGIServer(('0.0.0.0', 8080), app).serve_forever()