The example

The example includes 3 functions.

• A doGet example for a web app.
• An example where the token has already been setup by a one off doGet example
• An example of consuming the token

The doGet should be published 

function doGet(e) {

  return doGetDataStoreUser (e);

}

and will create a consent screen like this, from which the redirect URI can be copied and added to the App dashboard.

The patterns

the example

function doGetDataStoreUser (e) {

  

  // this is pattern for a WebApp.

  // passing the doGet parameters (or anything else)

  // will ensure they are preservered during the multiple oauth2 processes

  

  var packageName = 'DriverDatastore_example',

      userPropertyStore = PropertiesService.getUserProperties(),

      scriptPropertyStore = PropertiesService.getScriptProperties();

  

  // this starts with a package copy for a specific user if its needed

  cGoa.GoaApp.userClone(packageName, scriptPropertyStore , userPropertyStore);

  

  // create a user specific package. 

  var goa = cGoa.GoaApp.createGoa (packageName,userPropertyStore).execute(e);

  

  // it's possible that we need consent - this will cause a consent dialog

  if (goa.needsConsent()) {

    return goa.getConsent();

  }

  

  // if we get here its time for your webapp to run and we should have a token, or thrown an error somewhere

  if (!goa.hasToken()) throw 'something went wrong with goa - did you check if consent was needed?';

  

  // This is a webapp doing whaever its supposed to do

  // getParams is used to retrieve the original parameters passed to this function

  var result = testDataStore (goa.getToken(), goa.getParams() );   

  

  // remove package -- if you want to disable access to the service for the user and need continuous auth dalog uncomment this...

  ////goa.remove();

  

  // now return it as normal

  return HtmlService.createHtmlOutput (result.getContentText())

    .setSandboxMode(HtmlService.SandboxMode.IFRAME);

}

function dataStoreUser(params) {

       

  // pick up the token refreshing if necessary

  var goa = cGoa.GoaApp.createGoa('DriverDatastore_example', PropertiesService.getUserProperties()).execute(params);

  

  if (!goa.hasToken()) {

    throw 'for a non webapp version - first publish once off to provoke a dialog - token will be refreshed automatically thereafter';

  }

  

  // do a test - passing the token and any parameters that arrived to this function

  Logger.log (testDataStore (goa.getToken(), goa.getParams() ));

  

} 

/**

 * this is your main processing - will be called with your access token

 * @param {string} accessToken - the accessToken

 * @param {*} params any params

 */

function testDataStore (accessToken,params) {

 

   var options = {

     method: "POST",

     contentType : "application/json" ,

     muteHttpExceptions : true,

     headers: {

       "authorization": "Bearer " + accessToken,

     },

     payload:JSON.stringify({

       "query": {

        "kinds": [{"name":"polymerdbab"}]

       }

      })

   };

   

  return UrlFetchApp.fetch( 

    "https://www.googleapis.com/datastore/v1beta2/datasets/xliberationdatastore/runQuery", options);

}