So at a high level, I created an OSSN site for my club and club members have differing dues that I want to keep track of and show in their Profile panel. The values will be pulled from a Google Sheets file using this call which is pointing to a dummy test document but uses this same schema so to speak where the name of the person is in column A as LAST,FIRST and column B is balance due in $###.## format.
I am going to call this API endpoint when the Profile link to take them into their profile is clicked, match the logged in user name to the name in column A and in a readonly field that will be new add the Balance amount.
Now, here is where I am struggling. I am a software engineer by trade but only typically do MSSQL and .net programming, I dont know much except very basics of PHP and I know even less of the OSSN framework. If someone could help me get started with a template or kind of a high level walk through to do this that would be amazing.