Data API - HTTP "AT COMMANDS" to POST data to cluster

Hello. I am attempting to read and write data to a cluster using a wifi module that has “AT Commands” for http. I created the free cluster and have some sample data in the database. I set up an api key and was able to successfully read and write data using POST with cURL and Postman. I am now attempting to use the wifi module through a serial terminal with the HTTP at commands. I am having some trouble and was wondering if someone could assist me or point me in the right direction. Thank you in advance