PythonのHTTP POSTをオウム返しするHTTPServer

echo-http-server.py

#/usr/bin/python

# usage) python echo-http-server.py 

from http.server import HTTPServer, BaseHTTPRequestHandler

class EchoHandler(BaseHTTPRequestHandler):
    def do_POST(self):
        self.send_response(200)
        self.send_header('Content-type', 'text/plain; charset=utf-8')
        self.end_headers()

        self.wfile.write(self.requestline.encode())
        self.wfile.write(b"\r\n")
        self.wfile.write(str(self.headers).encode())
        len = int(self.headers.get('Content-Length'))
        self.wfile.write(self.rfile.read(len))
        self.wfile.flush()

if __name__ == '__main__':
    server_address = ('', 8080)
    httpd = HTTPServer(server_address, EchoHandler)
    httpd.serve_forever()

gistfile1.txt

# Server
$ python echo-http-server.py 
127.0.0.1 - - [04/Apr/2022 12:08:17] "POST / HTTP/1.1" 200 -

# Client
$ curl -X POST -d "hello=world" http://localhost:8080/
POST / HTTP/1.1
Host: localhost:8080
User-Agent: curl/7.68.0
Accept: */*
Content-Length: 11
Content-Type: application/x-www-form-urlencoded

hello=world