How to create an Apps Script Web API Endpoint for AJAX connections output Sheet as JSON doPost

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You can setup your webapp to serve as an endpoint for web applications. In this example we explore how to make both GET method requests and POST method requests to the endpoint, retrieving and returning data from a spreadsheet into the JavaScript code as data from an AJAX request.
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[@username31031]

Thank you for the video. I have one question. This approach returns the entire row, but what if I have a sheet with 3 columns and I want to do a check if the data input (via html form) from column 1 & 2 are true, then return the data from the 3rd column. I hope this makes sense

[@LaurenceSvekisCourses]

You need to select the range you want to return

[@stylersito]

Why is it that if I try to make a POST request I get a CORS error?

[@Jesus_777.2]

There was an issue I had with getting back the response from the http request. I got lucky and found the answer here by accident

[@LaurenceSvekisCourses]

Great let me know if you have any questions