Code used in tutorial for setting up Blogger API with Google Apps Script

bloggerAPIExample.gs

var CLIENT_ID = 'YOUR_CLIENT_ID';
var CLIENT_SECRET = 'YOUR_CLIENT_SECRET';

function getService() {
  // Create a new service with the given name. The name will be used when
  // persisting the authorized token, so ensure it is unique within the
  // scope of the property store.
  return OAuth2.createService('blogger')

      // Set the endpoint URLs, which are the same for all Google services.
      .setAuthorizationBaseUrl('https://accounts.google.com/o/oauth2/auth')
      .setTokenUrl('https://accounts.google.com/o/oauth2/token')
      

      // Set the client ID and secret, from the Google Developers Console.
      .setClientId(CLIENT_ID)
      .setClientSecret(CLIENT_SECRET)

      // Set the name of the callback function in the script referenced
      // above that should be invoked to complete the OAuth flow.
      .setCallbackFunction('authCallback')

      // Set the property store where authorized tokens should be persisted.
      .setPropertyStore(PropertiesService.getUserProperties())

      // Set the scopes to request (space-separated for Google services).
      // this is blogger read only scope for write access is:
      // https://www.googleapis.com/auth/blogger
      .setScope('https://www.googleapis.com/auth/blogger.readonly')

      // Below are Google-specific OAuth2 parameters.

      // Sets the login hint, which will prevent the account chooser screen
      // from being shown to users logged in with multiple accounts.
      .setParam('login_hint', Session.getActiveUser().getEmail())
      
      // Requests offline access.
      .setParam('access_type', 'offline')

      // Forces the approval prompt every time. This is useful for testing,
      // but not desirable in a production application.
      .setParam('approval_prompt', 'force');
}

function authCallback(request) {
  var bloggerService = getService();
  var isAuthorized = bloggerService.handleCallback(request);
  if (isAuthorized) {
    return HtmlService.createHtmlOutput('Success! You can close this tab.');
  } else {
    return HtmlService.createHtmlOutput('Denied. You can close this tab');
  }
}

// Modified from http://ctrlq.org/code/20068-blogger-api-with-google-apps-script
function bloggerAPI() {
  var service = getService();
  if (service.hasAccess()) {
  
    var api = "https://www.googleapis.com/blogger/v3/users/self/blogs";
    
    var headers = {
      "Authorization": "Bearer " + getService().getAccessToken()
    };
    
    var options = {
      "headers": headers,
      "method" : "GET",
      "muteHttpExceptions": true
    };
    
    var response = UrlFetchApp.fetch(api, options);
    
    var json = JSON.parse(response.getContentText());
    
    for (var i in json.items) {
      Logger.log("[%s] %s %s", json.items[i].id, json.items[i].name, json.items[i].url); 
    }
  } else {
    var authorizationUrl = service.getAuthorizationUrl();
    Logger.log('Open the following URL and re-run the script: %s',
        authorizationUrl);
  }
}