AT commands for sending data to the server using http.

RE: AT commands for sending data to the server using http.

Heidi — Mon, 25 Jan 2021 12:57:28 GMT

Yes, you can modify the application you are using to add support for the SLM proprietary commands. Here is the implementation of the HTTP commands: ncs/nrf/serial_lte_modem/src/http_c/slm_at_httpc.c

RE: AT commands for sending data to the server using http.

Shivek — Wed, 20 Jan 2021 17:42:18 GMT

But if the SLM proprietary AT commands can run on the device, then that means there is some way to run those commands (if not using at_cmd_write() ).

RE: AT commands for sending data to the server using http.

Heidi — Wed, 20 Jan 2021 15:36:44 GMT

[quote user="Shivek"]I tried using "AT#XSOCKET=1,1,0" command to open a TCP based socket. But the modem is not responding when I am using at_cmd_write() function from API command interface API. [/quote]

Yes, this will not work. You can only use the SLM proprietary AT commands when the SLM application is running on the device. The function at_cmd_write() only accepts the AT commands documented in the reference guide.

RE: AT commands for sending data to the server using http.

Shivek — Wed, 20 Jan 2021 14:28:51 GMT

Thanks for your reply. I tried using "AT#XSOCKET=1,1,0" command to open a TCP based socket. But the modem is not responding when I am using at_cmd_write() function from API command interface API.

Though using the same at_amd_write() function I am able to get the response from modem for standard commands like AT+CGMI or AT+CFUN?.

Is there anything related to settings or project configuration in menuconfig that I need to do?

Because when I am flashing nRF9160(on Thingy:91) using LTE serial modem application and sending the AT#XSOCKET=1,1,0 command, the modem is responding as expected. So, I think probably I need to establish a LTE connection from modem and then only I can create sockets. Or it can be the configuration settings.

I will appreciate any further insight.

Regards,

Shivek

RE: AT commands for sending data to the server using http.

Heidi — Wed, 20 Jan 2021 13:49:26 GMT

Hi!

No, there is no standardized AT command for that.

The Serial LTE Modem application in NCS has some proprietary AT commands for this (HTTP client AT commands).

#XHTTPCCON allows you to connect and disconnect from an HTTP server, #XHTTPCREQ allows you to send an HTTP request and #XHTTPCRSP is an unsolicited notification that indicates that a part of the HTTP response has been received.

Best regards,

Heidi