如何使用 Google Apps Script Execution API + Java 创建 Google 表单？

Question

I tried a simple Java command-line application that makes requests to the Google Apps Script Execution API. Something like this: https://developers.google.com/apps-script/guides/rest/quickstart/java#prerequisites . But it doesn't work.

Google Apps Script Editor:

function createForm() {

  var form = FormApp.create('New Form');

}

Java Error:

Credentials saved to /home/palmaslab/.credentials/script-java-quickstart.json
com.google.api.client.googleapis.json.GoogleJsonResponseException: 401 Unauthorized
        at com.google.api.client.googleapis.json.GoogleJsonResponseException.from(GoogleJsonResponseException.java:145)
        at com.google.api.client.googleapis.services.json.AbstractGoogleJsonClientRequest.newExceptionOnError(AbstractGoogleJsonClientRequest.java:113)
        at com.google.api.client.googleapis.services.json.AbstractGoogleJsonClientRequest.newExceptionOnError(AbstractGoogleJsonClientRequest.java:40)
        at com.google.api.client.googleapis.services.AbstractGoogleClientRequest$1.interceptResponse(AbstractGoogleClientRequest.java:321)
        at com.google.api.client.http.HttpRequest.execute(HttpRequest.java:1056)
        at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:419)
        at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:352)
        at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.execute(AbstractGoogleClientRequest.java:469)
        at org.gradle.AppsScriptApiQuickstart.main(AppsScriptApiQuickstart.java:188)

Answer 1

API returning an HTTP 401 response when calling the API. These error could indicate any of:

Token expiry, token revocation, token not authorized for needed scope, request not authorized correctly with OAuth 2.0 protocol . You may also check Forms Service for more information regarding forms services

Here's a related issue of 401: Unauthorized: Google apps script and execution API: latest version of script throws error

Answer 2

Seems you have to authorize previously the scopes. Maybe it could help you: Manual authorization scopes for Sheets, Docs, and Forms