I've read google spreadsheet documentation https://developers.google.com/sheets/api/guides/authorizing And it says, that if document is public, you don't need Oauth 2.0 and API key is sufficient. I'm trying to do a test request with hurl and api key as parameter.it, but it still gives me error, that I need to use Oauth, any thoughts?
Response:
"error": {"code": 401,"message": "Request is missing required authentication credential. Expected OAuth 2 access token, login cookie or other valid authentication credential. See https://developers.google.com/identity/sign-in/web/devconsole-project.","status": "UNAUTHENTICATED"}
API key is not enough. You're trying to use spreadsheets.values.append which requires OAuth authorization:
Authorization Requires one of the following OAuth scopes:
https://www.googleapis.com/auth/drive https://www.googleapis.com/auth/drive.file https://www.googleapis.com/auth/spreadsheets For more information, see the [Auth Guide](https://developers.google.com/identity/protocols/OAuth2).
Note it says OAuth.
In my case I need to publish content from a Google Spreadsheet to a web page. My workarround consists in use the HTTP GET call
GET https://sheets.googleapis.com/v4/spreadsheets/{spreadsheetId}/values/{range}
using the javascript object XMLHttpRequest In this solution you only have to use the API key
来源：https://stackoverflow.com/questions/48747530/access-google-spreadsheet-api-without-oauth-token