Google Apps Script URLFetchApp Permission

Question

I\'m new to GAS and I struggle with the permission system.

I\'m a normal Google drive user and I started a spreadsheet and tried to add some code to it. My code is worki

Answer 1

onEdit(), like all simple triggers, is bound by the following restrictions (see official documentation):

• The script must be bound to a Google Sheets, Slides, Docs, or Forms file, or else be an add-on that extends one of those applications.
• They do not run if a file is opened in read-only (view or comment) mode.
• Script executions and API requests do not cause triggers to run. For example, calling Range.setValue() to edit a cell does not cause the spreadsheet's onEdit trigger to run.
• They cannot access services that require authorization. For example, a simple trigger cannot send an email because the Gmail service requires authorization, but a simple trigger can translate a phrase with the Language service, which is anonymous.
• They can modify the file they are bound to, but cannot access other files because that would require authorization.
• They may or may not be able to determine the identity of the current user, depending on a complex set of security restrictions.
• They cannot run for longer than 30 seconds.
• In certain circumstances, editor add-ons run their onOpen(e) and onEdit(e) simple triggers in a no-authorization mode that presents some additional complications. For more information, see the guide to the add-on authorization lifecycle.
• Simple triggers are subject to Apps Script trigger quota limits.

The ones highlighted in bold apply to your question.

Basically, it boils down to this - UrlFetchApp.fetch() is a service that requires authorization, so you won't be able to execute it from your onEdit(e) trigger, even if you have its associated scope set in your manifest file.

Answer 2

Use installable trigger instead and write your own "onEdit" function (with a different name) that you bind to your installable trigger.

https://developers.google.com/apps-script/guides/triggers/installable#g_suite_application_triggers

This solved the issue for me.