I would like to make an HTTP POST using google apps script. I have found very little documentation on this, maybe someone could kindly help?
The HTTP POST will be to
I had difficulties using Google App Script HtmlService in the beginning as well. Check for the fully functional basic example that I made on how to use Htmlservice. In this example you can post a form, display the posted information on a second page, and navigate between pages.
https://script.google.com/macros/s/AKfycby-tsWP8GiVj9KxdZa2KtIcEIh9zfaCaG_iCtayydhg-6G-rsc/exec
if you want to see the code just access the link bellow. Make a copy to yourself and don't forget to change the link to your script on line 50 (Codigo.gs)
https://script.google.com/macros/d/MWH5NC4RbgzryH_Ut-1zVe3Ow4ZzbpCe7/edit