HTTPS POST request connect failing

RE: HTTPS POST request connect failing

Øyvind — Fri, 07 Aug 2020 10:50:06 GMT

Hello,

[quote user="kgarland789"]What header file is EOPNOTSUPP defined in?[/quote]

The error code is given in errno.h following https://man7.org/linux/man-pages/man3/errno.3.html.

[quote user="kgarland789"]Is there a better way to send a payload over https post?[/quote]

HTTPS Client sample uses TLS. In this sample, the TLS_setup() associates a socket with the security tag that the samples provisions the certificate with.

The server you are using does most likely have a certificate that you must use, however, it may return a certificate that is too large for the TLS buffer to handle, which is currently 2kB (maximum).

I recommend talking to your IT department to clarify what is needed to communicate with the server and to check what the TLS handshake looks like in regards to certificates returned by the server to the client.

Kind regards,
Øyvind

RE: HTTPS POST request connect failing

kgarland789 — Thu, 06 Aug 2020 18:19:08 GMT

Hi Øyvind,

Thanks for your response.

The certificate is working when I attempt to connect to google.com, but I was told we don't need a certificate to connect to our webserver (I am not skilled in backend webdev stuff). What header file is EOPNOTSUPP defined in?

At the end of the day yesterday, I was able to get the POST request working using the url below, but now I am unable to get it working again today.

char send_buf[] = "POST /api? HTTP/1.1\r\nHost: myserver.com\r\nConnection: keep-alive\r\nContent-type: application/json\r\nContent-length: 41\r\n\r\n\{\"product_id\": \"xxxxxxxxx\"\}";

Is there a better way to send a payload over https post? It seems a bit much to confgure for JSON and send in the request header. I can't seem to find any examples on how to send the payload.

I am using the latest version of ncs v 1.3? And also the latest version of modem firmware 2020-04-29_bc7ade8b

Thanks for your assistance.

RE: HTTPS POST request connect failing

Øyvind — Thu, 06 Aug 2020 11:37:27 GMT

Hello,

Have you verified that the certificate is correct? Often you will see that errno 45 is returned if the certificate is not correct.

#define EOPNOTSUPP 45      /* Operation not supported on socket */

What version of NCS and modem FW are you running?

Kind regards,
Øyvind