Hi everyone,
I created an API that can access specific sheets in Google Drive and read some data from it. I have configured the API key, OAuth 2.0 Client ID, and consent screen in GoogleConsole. I have enabled Google Drive API and Google Sheets API as well.
This is the feature that I don't use often so once I implemented it a few weeks ago I was able to read this data and perform this 'read' call successfully, and today I got the following error for the very same call:
{ "code" : 403, "errors" : [ { "domain" : "global", "message" : "Method doesn't allow unregistered callers (callers without established identity). Please use API Key or other form of API consumer identity to call this API.", "reason" : "forbidden" } ], "message" : "Method doesn't allow unregistered callers (callers without established identity). Please use API Key or other form of API consumer identity to call this API.", "status" : "PERMISSION_DENIED" }
I checked GoogleConsole for any quotas that might be exceeded, key that might be expired or services that might be disabled and I saw that configuration is unchanged so I don't know what else could provoke this issue. Also no changes were made on the document itself and I use the same google account to try this 'read' call.
I'd appreciate any hint or advice on where to look for root of this issue
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