lambda udpate records from a google user using cognito

cognito-records-example.js

module.exports.auth = (event, context, callback) => {
  AWS.config.credentials = new AWS.CognitoIdentityCredentials({
    IdentityPoolId: IdentityPoolId,
    Logins: {
      'accounts.google.com': event.id_token
    }
  });

  AWS.config.credentials.get(() =>{
    if (!AWS.config.credentials.accessKeyId) {
      return callback(new Error('invalid tokenid ' + event.id_token));
    }

    const cognitosync = new AWS.CognitoSync({apiVersion: '2014-06-30'});

    cognitosync.listRecords({
      DatasetName: 'userinfo',
      IdentityId: AWS.config.credentials.identityId,
      IdentityPoolId: IdentityPoolId,
    }, (err, data) => {
      if (err) {
        callback(err);
      } else {
        /**
        data = {
            "Records": [
                {
                    "Key": "test",
                    "Value": "test value",
                    "SyncCount": 1,
                    "LastModifiedDate": "2016-09-21T12:34:47.519Z",
                    "LastModifiedBy": "eu-west-1:be04407a-a0a4-436e-ae23-276f4599d219",
                    "DeviceLastModifiedDate": "2016-09-21T12:34:47.519Z"
                }
            ]
        }
         */
        cognitosync.updateRecords({
          DatasetName: 'userinfo',
          IdentityId: AWS.config.credentials.identityId,
          IdentityPoolId: IdentityPoolId,
          SyncSessionToken: data.SyncSessionToken,
          RecordPatches: [{
              Key: 'test',
              Op: 'replace',
              SyncCount: 0,
              Value: 'test value'
            }
          ]
        }, (err, updatedRecords) => {
          if (err) {
            callback(err);
          }
          else {
            callback(null, {
              identityId: AWS.config.credentials.identityId
            });
          }
        });
      }
    });
  });
};