ESP-AT fails with HTTP POST
Posted: Wed Nov 08, 2023 11:43 am
Hi guys, I work on http client using esp-at on my esp32-wroom-32u, i encountered problem, when i connect to the server and send this command:
simple python server created with command
i get response as expected:
but when i do the same with this server:
there is only ERROR
When i tried to test server with curl -X POST http://192.168.31.31:8080 -d "key=value" server answered.
Did somebody encounter something similar?
Code: Select all
AT+HTTPCLIENT=3,1,"http://192.168.31.31:8080/","","",1,"key=value"
Code: Select all
python3 -m http.server -b 192.168.31.31 8080
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AT+HTTPCLIENT=3,1,"http://192.168.31.31:8080/","","",1,"key=value"
+HTTPCLIENT:497,<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN""
"http://www.w 3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="Content-Type" con tent="text/html;charset=utf-8">
<title>Error response</title>
</head>
<bo dy>
<h1>Error response</h1>
<p>Error code: 501</p>
<p>Message: Un supported method ('POST').</p>
<p>Error code explanation: HTTPStatus.NOT_IMPLEM ENTED - Server does not support this operation.</p>
</body>
</html>
ERROR
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#!/usr/bin/env python3
"""
License: MIT License
Copyright (c) 2023 Miel Donkers
Very simple HTTP server in python for logging requests
Usage::
./server.py [<port>]
"""
from http.server import BaseHTTPRequestHandler, HTTPServer
import logging
class S(BaseHTTPRequestHandler):
def _set_response(self):
self.send_response(200)
self.send_header('Content-type', 'text/html')
self.end_headers()
def do_GET(self):
logging.info("GET request,\nPath: %s\nHeaders:\n%s\n", str(self.path), str(self.headers))
self._set_response()
self.wfile.write("<html><body><h1>Get Request Received!</h1></body></html>".format(self.path).encode('utf-8'))
def do_POST(self):
print("post!!!")
content_length = int(self.headers['Content-Length']) # <--- Gets the size of data
post_data = self.rfile.read(content_length) # <--- Gets the data itself
logging.info("POST request,\nPath: %s\nHeaders:\n%s\n\nBody:\n%s\n",
str(self.path), str(self.headers), post_data.decode('utf-8'))
self._set_response()
self.wfile.write("POST request for {}".format(self.path).encode('utf-8'))
def run(server_class=HTTPServer, handler_class=S, port=8081):
logging.basicConfig(level=logging.INFO)
server_address = ('192.168.31.31', port)
httpd = server_class(server_address, handler_class)
logging.info('Starting httpd...\n')
try:
httpd.serve_forever()
except KeyboardInterrupt:
pass
httpd.server_close()
logging.info('Stopping httpd...\n')
if __name__ == '__main__':
from sys import argv
if len(argv) == 2:
run(port=int(argv[1]))
else:
run()
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AT+HTTPCLIENT=3,3,"http://192.168.31.31:8080","192.168.31.31:8080","/",1,"hi"
ERROR
Did somebody encounter something similar?