API HTTP GET Request on the Cellular 3G

Question

Hi,

I am having the same kind of trouble as the user who posted this:
https://www.digi.com/support/forum/66120/http-get-in-api-mode-on-xbee-lte-cat-1

I am trying to perform a simple HTTP GET request on httpbin.org using the API mode. I have been able to do it using putty, both with the url and its IP address, which is 54.225.153.22. I found it using https://www.site24x7.com/find-ip-address-of-web-site.html.

When I perform the following request:
(newline)
GET /get HTTP/1.0
HOST: www.httpbin.org
(newline)

I receive the intended result, using putty, and the connection closing. Both happens when using the url and IP address.

When trying to do the same using the API mode I receive a TX status, notifying me that the connection is lost, and nothing else.

The frame I am sending is the following, generated using XCTU:
7E 00 38 20 01 36 E1 99 16 00 50 00 01 01 00 0D 0A 47 45 54 20 2F 67 65 74 20 48 54 54 50 2F 31 2E 30 0D 0A 48 4F 53 54 3A 20 77 77 77 2E 68 74 74 70 62 69 6E 2E 6F 72 67 0D 0A 5A

Any kind of help would be greatly appreciated.

Thank you all in advance.

Edit:
I solved the problem. I changed the port number like tckr suggested, and added another newline to the payload (0D 0A), like mvut suggested..

Answer 1

May I suggest you copy the following data packet into the data portion of your API frame.

47 45 54 20 2F 69 70 20 48 54 54 50 2F 31 2E 31 0D 0A 48 6F 73 74 3A 20 68 74 74 70 62 69 6E 2E 6F 72 67 0D 0A 0D 0A

You will find that it is accurate as to what the data portion needs to be for the HTTP get to work.

Answer 2

It looks like you are specifying a source port of 1 (00 01). This needs to be 0 (00 00), otherwise XBee Cellular will give the "connection lost" status because there is no existing connection with local port 1.