Google Apps Script Quickstart

Complete the steps described in the rest of this page, and in about five minutes you'll have a simple Google Apps Script that makes requests to the Google Tasks API.

Prerequisites

To run this quickstart, you'll need:

  • Access to the internet and a web browser.
  • A Google account with Google Tasks enabled.
  • Access to Google Drive.

Step 1: Create the script

  1. Open Google Drive in your web browser.
  2. Click New > More > Google Apps Script.

    If Google Apps Script isn't listed, you can install it by clicking the Connect more apps option instead. Search for "Google Apps Script" and click the +CONNECT button. Click the OK button in the popup, click the X icon to close the dialog, and repeat the step above.

  3. If you are presented with a welcome screen, click Blank Project.
  4. Replace the contents of the script editor with the following code:
    function listTaskLists() {
      var optionalArgs = {
        maxResults: 10
      };
      var response = Tasks.Tasklists.list(optionalArgs);
      var taskLists = response.items;
      if (taskLists && taskLists.length > 0) {
        Logger.log('Task lists:');
        for (var i = 0; i < taskLists.length; i++) {
          var taskList = taskLists[i];
          Logger.log('%s (%s)', taskList.title, taskList.id);
        }
      } else {
        Logger.log('No task lists found.');
      }
    }
    
  5. Click File > Save, name your project "Quickstart", and click OK.

Step 2: Turn on the Google Tasks API

  1. In the Apps Script editor, click Resources > Advanced Google Services.
  2. Locate Tasks API in the dialog and click the corresponding toggle, setting it to on.
  3. Click the Google API Console link.
  4. Enter "Tasks API" into the search box and click on the corresponding entry in the results.
  5. Click the Enable API button.
  6. Return to the Apps Script editor and click the OK button on the Advanced Google Services dialog.

Step 3: Run the sample

In the Apps Script editor, click Run > listTaskLists.

The first time you run the sample, it will prompt you to authorize access:

  1. Click the Continue button.
  2. Click the Accept button.

To view the script's output, click View > Logs.

Further reading

Troubleshooting

ReferenceError: "[API NAME]" is not defined

This error occurs when the API hasn't been toggled on in the Apps Script code editor. Revisit Step 2.b and ensure the corresponding toggle is set to on.

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