ESP32 Forum

Posted: **Tue Jan 01, 2019 7:18 pm**

Hey all,

To start I have used the search function and read through the problems from other posts, the most similar one was this https://www.esp32.com/viewtopic.php?t=843 tried the same thing but it seemed like an old example and couldn't get it to work.

My issue is that I am working through http_request_example, and I change the code to suit my needs and it connect to my website easily, but I get a HTTP 400 error, and a esp errno of 128 (I believe is SSL?)

here is what I am sending as the post request:

Code: Select all

POST http://xxx.com/xxx/Device04/Test2.php HTTP/1.1
Host: xxx.com
User-Agent: ESP32HTTPClient
Connection: close
Accept-Encoding: identity;q=1,chunked;q=0.1,*;q=0
Content-Type: application/x-www-form-urlencoded
Content-Length: 58

t=10&h=10&t2=10&s=(10,10)&password=Password&table=Device05

here is output from IDF

Code: Select all

I (561465) Test: Connected to AP
I (561465) Test: DNS lookup succeeded. IP=
I (561465) Test: ... allocated socket
I (561505) Test: ... connected
I (561505) Test: ... socket send success
I (561505) Test: ... set socket receiving timeout success
HTTP/1.1 400 Bad Request
Server: nginx/1.14.1
Date: Tue, 01 Jan 2019 08:00:44 GMT
Content-Type: text/html
Content-Length: 173
Connection: close

<html>
<head><title>400 Bad Request</title></head>
<body bgcolor="white">
<center><h1>400 Bad Request</h1></center>
<hr><center>nginx/1.14.1</center>
</body>
</html>
I (561565)Test: ... done reading from socket. Last read return=0 errno=128

any help will be greatly appreciated. I am also not using https and my site does not have ssl currently. as mentioned in title, it works fine in arduino, and GET works as well.

Posted: **Thu Jan 03, 2019 5:12 am**

good news I ended up getting the code to finally work, after working through it when I can the past couple of days...

In case you come to this issue:

Here what I changed:
I changed

Code: Select all

 http://www.xxx.com/aaa/bbb/ccc.php

to

Code: Select all

 [/aaa/bbb/ccc]

removing my url + .com from the first line of the POST ended up working beautifully! This is confusing since in the past I had to add the http:// in previous esp-idf versions which was weird...

here is what the final POST looked like:

Code: Select all

 
POST /xxx/xxx/Test2.php HTTP/1.1                                                                                                                                                       
Host: xxx.com                                                                                                                                                                         
User-Agent: ESP32HTTPClient                                                                                                                                                                 
Connection: close                                                                                                                                                                           
Accept-Encoding: identity;q=1,chunked;q=0.1,*;q=0                                                                                                                                           
Content-Type: application/x-www-form-urlencoded                                                                                                                                             
Content-Length: 58                                                                                                                                                                          
                                                                                                                                                                                            
t=30&h=10&t2=10&s=(10,10)&password=Password&table=Device05

Posted: **Thu Jan 03, 2019 6:03 am**

Works for me:

Code: Select all

	esp_http_client_handle_t client = esp_http_client_init(&config);
	esp_http_client_set_method(client, HTTP_METHOD_POST);
	esp_http_client_set_header(client, "Content-Type", "image/jpeg");
	esp_http_client_set_post_field(client, (const char*)fb_data->base64_data, fb_data->base64_size);
	esp_err_t err = esp_http_client_perform(client);
	if (err == ESP_OK) {
		fb_data->resp_len = esp_http_client_get_content_length(client);
		ESP_LOGI(TAG, "HTTP POST Status = %d, content_length = %d",
			esp_http_client_get_status_code(client),
			fb_data->resp_len);
	}
	else {
		ESP_LOGE(TAG, "HTTP POST request failed: %s", esp_err_to_name(err));
	}

Posted: **Fri Jan 04, 2019 5:25 am**

chegewara,

Interesting, did my solution work, or my initial post worked for you? do you mind sending me what your POST request looked like?

thanks!

Posted: **Fri Jan 04, 2019 6:35 pm**

I didnt try with your solution, above code snippet is from my app.

ESP32 Forum

HTTP POST does not work in esp-idf, it does work in arduino..

HTTP POST does not work in esp-idf, it does work in arduino..

Got it to work

Re: HTTP POST does not work in esp-idf, it does work in arduino..

Re: HTTP POST does not work in esp-idf, it does work in arduino..

Re: HTTP POST does not work in esp-idf, it does work in arduino..