How do I send HTTP POST request with thingy91?

Hi, I am new to HTTP, and are trying to make a simple http post (not https) code for thingy91 over LTE. I have a http server that require some headers in the request. I have tried to look at the https_client sample, but I'm not sure what to remove to make it a working http code. It would be nice to get some help/tips to do it correctly, or if there already are some opensource http post code available that you know of that does not require TLS and other certificates, just the part for an http post request. 

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