Update a Gift card

Keeping passes updated is an important way to engage with your customers and build a positive experience.

There are two resources that can be updated: The GiftCardClass and the GiftCardObject.

Important considerations

The following list contains helpful information to consider when updating your gift card classes and objects:

  • Any update logic should begin with a GET request to retrieve the class or object. This ensures that the latest version is used.
  • When you make an update request, any fields that you omit in the request are cleared. When making a patch request, only the patched values are updated.
  • When making patch requests to update arrays, the original array is replaced with the one included in the request body. You cannot modify the elements in an array individually.
  • In some cases, you may not know when changes happen, or when to trigger updates. Consider periodically scheduling update or patch requests for all classes and objects.

Update a class

Update class in the Google Pay & Wallet Console

Pass classes (not objects) can be modified directly in the Google Pay & Wallet Console.

  1. Navigate to the console
  2. Select Google Wallet API
  3. Select the class you want to modify
  4. Select Edit
  5. Update the class properties
  6. Select Save

Once you save your changes, the class is updated automatically for any giftcard holders.

Update class or object using the Google Wallet API

Updating the GiftCardClass affects all users who have been provisioned gift cards using this class. For example, to update the logo for your gift cards, you would submit an update or patch request to the Google Wallet API at either of the following endpoints. The resourceId value would be the class ID (ISSUER_ID.CLASS_SUFFIX).

# Update
PUT https://walletobjects.googleapis.com/walletobjects/v1/giftcardclass/{resourceId}

# Patch
PATCH https://walletobjects.googleapis.com/walletobjects/v1/giftcardclas/{resourceId}

For more information, see the API reference.

Java

/**
 * Update a class.
 *
 * <p><strong>Warning:</strong> This replaces all existing class attributes!
 *
 * @param issuerId The issuer ID being used for this request.
 * @param classSuffix Developer-defined unique ID for this pass class.
 * @return The pass class ID: "{issuerId}.{classSuffix}"
 */
public String updateClass(String issuerId, String classSuffix) throws IOException {
  GiftCardClass updatedClass;

  // Check if the class exists
  try {
    updatedClass =
        service.giftcardclass().get(String.format("%s.%s", issuerId, classSuffix)).execute();
  } catch (GoogleJsonResponseException ex) {
    if (ex.getStatusCode() == 404) {
      // Class does not exist
      System.out.printf("Class %s.%s not found!%n", issuerId, classSuffix);
      return String.format("%s.%s", issuerId, classSuffix);
    } else {
      // Something else went wrong...
      ex.printStackTrace();
      return String.format("%s.%s", issuerId, classSuffix);
    }
  }

  // Class exists
  // Update the class by adding a homepage
  updatedClass.setHomepageUri(
      new Uri()
          .setUri("https://developers.google.com/wallet")
          .setDescription("Homepage description"));

  // Note: reviewStatus must be 'UNDER_REVIEW' or 'DRAFT' for updates
  updatedClass.setReviewStatus("UNDER_REVIEW");

  GiftCardClass response =
      service
          .giftcardclass()
          .update(String.format("%s.%s", issuerId, classSuffix), updatedClass)
          .execute();

  System.out.println("Class update response");
  System.out.println(response.toPrettyString());

  return response.getId();
}

PHP

/**
 * Update a class.
 *
 * **Warning:** This replaces all existing class attributes!
 *
 * @param string $issuerId The issuer ID being used for this request.
 * @param string $classSuffix Developer-defined unique ID for this pass class.
 *
 * @return string The pass class ID: "{$issuerId}.{$classSuffix}"
 */
public function updateClass(string $issuerId, string $classSuffix)
{
  // Check if the class exists
  try {
    $updatedClass = $this->service->giftcardclass->get("{$issuerId}.{$classSuffix}");
  } catch (Google\Service\Exception $ex) {
    if (!empty($ex->getErrors()) && $ex->getErrors()[0]['reason'] == 'classNotFound') {
      // Class does not exist
      print("Class {$issuerId}.{$classSuffix} not found!");
      return "{$issuerId}.{$classSuffix}";
    } else {
      // Something else went wrong...
      print_r($ex);
      return "{$issuerId}.{$classSuffix}";
    }
  }

  // Update the class by adding a homepage
  $updatedClass->setHomepageUri(new Google_Service_Walletobjects_Uri([
    'uri' => 'https://developers.google.com/wallet',
    'description' => 'Homepage description'
  ]));

  // Note: reviewStatus must be 'UNDER_REVIEW' or 'DRAFT' for updates
  $updatedClass->setReviewStatus('UNDER_REVIEW');

  $response = $this->service->giftcardclass->update("{$issuerId}.{$classSuffix}", $updatedClass);

  print "Class update response\n";
  print_r($response);

  return $response->id;
}

Python

def update_class(self, issuer_id: str, class_suffix: str) -> str:
    """Update a class.

    **Warning:** This replaces all existing class attributes!

    Args:
        issuer_id (str): The issuer ID being used for this request.
        class_suffix (str): Developer-defined unique ID for this pass class.

    Returns:
        The pass class ID: f"{issuer_id}.{class_suffix}"
    """

    # Check if the class exists
    response = self.http_client.get(
        url=f'{self.class_url}/{issuer_id}.{class_suffix}')

    if response.status_code == 404:
        print(f'Class {issuer_id}.{class_suffix} not found!')
        return f'{issuer_id}.{class_suffix}'
    elif response.status_code != 200:
        # Something else went wrong...
        print(response.text)
        return f'{issuer_id}.{class_suffix}'

    # Class exists
    updated_class = response.json()

    # Update the class by adding a homepage
    updated_class['homepageUri'] = {
        'uri': 'https://developers.google.com/wallet',
        'description': 'Homepage description'
    }

    # Note: reviewStatus must be 'UNDER_REVIEW' or 'DRAFT' for updates
    updated_class['reviewStatus'] = 'UNDER_REVIEW'

    response = self.http_client.put(
        url=f'{self.class_url}/{issuer_id}.{class_suffix}',
        json=updated_class)

    print('Class update response')
    print(response.text)

    return response.json().get('id')

C#

/// <summary>
/// Update a class.
/// <para />
/// <strong>Warning:</strong> This replaces all existing class attributes!
/// </summary>
/// <param name="issuerId">The issuer ID being used for this request.</param>
/// <param name="classSuffix">Developer-defined unique ID for this pass class.</param>
/// <returns>The pass class ID: "{issuerId}.{classSuffix}"</returns>
public string UpdateClass(string issuerId, string classSuffix)
{
  // Check if the class exists
  Stream responseStream = service.Giftcardclass
      .Get($"{issuerId}.{classSuffix}")
      .ExecuteAsStream();

  StreamReader responseReader = new StreamReader(responseStream);
  JObject jsonResponse = JObject.Parse(responseReader.ReadToEnd());

  if (jsonResponse.ContainsKey("error"))
  {
    if (jsonResponse["error"].Value<int>("code") == 404)
    {
      // Class does not exist
      Console.WriteLine($"Class {issuerId}.{classSuffix} not found!");
      return $"{issuerId}.{classSuffix}";
    }
    else
    {
      // Something else went wrong...
      Console.WriteLine(jsonResponse.ToString());
      return $"{issuerId}.{classSuffix}";
    }
  }

  // Class exists
  GiftCardClass updatedClass = JsonConvert.DeserializeObject<GiftCardClass>(jsonResponse.ToString());

  // Update the class by adding a homepage
  updatedClass.HomepageUri = new Google.Apis.Walletobjects.v1.Data.Uri
  {
    UriValue = "https://developers.google.com/wallet",
    Description = "Homepage description"
  };

  // Note: reviewStatus must be 'UNDER_REVIEW' or 'DRAFT' for updates
  updatedClass.ReviewStatus = "UNDER_REVIEW";

  responseStream = service.Giftcardclass
      .Update(updatedClass, $"{issuerId}.{classSuffix}")
      .ExecuteAsStream();

  responseReader = new StreamReader(responseStream);
  jsonResponse = JObject.Parse(responseReader.ReadToEnd());

  Console.WriteLine("Class update response");
  Console.WriteLine(jsonResponse.ToString());

  return $"{issuerId}.{classSuffix}";
}

Node.js

/**
 * Update a class.
 *
 * **Warning:** This replaces all existing class attributes!
 *
 * @param {string} issuerId The issuer ID being used for this request.
 * @param {string} classSuffix Developer-defined unique ID for this pass class.
 *
 * @returns {string} The pass class ID: `${issuerId}.${classSuffix}`
 */
async updateClass(issuerId, classSuffix) {
  let response;

  // Check if the class exists
  try {
    response = await this.httpClient.request({
      url: `${this.classUrl}/${issuerId}.${classSuffix}`,
      method: 'GET'
    });
  } catch (err) {
    if (err.response && err.response.status === 404) {
      console.log(`Class ${issuerId}.${classSuffix} not found!`);
      return `${issuerId}.${classSuffix}`;
    } else {
      // Something else went wrong...
      console.log(err);
      return `${issuerId}.${classSuffix}`;
    }
  }

  // Class exists
  let updatedClass = response.data;

  // Update the class by adding a homepage
  updatedClass['homepageUri'] = {
    'uri': 'https://developers.google.com/wallet',
    'description': 'Homepage description'
  };

  // Note: reviewStatus must be 'UNDER_REVIEW' or 'DRAFT' for updates
  updatedClass['reviewStatus'] = 'UNDER_REVIEW';

  response = await this.httpClient.request({
    url: `${this.classUrl}/${issuerId}.${classSuffix}`,
    method: 'PUT',
    data: updatedClass
  });

  console.log('Class update response');
  console.log(response);

  return `${issuerId}.${classSuffix}`;
}

Update an object

Updating an individual GiftCardObject affects only the user who has been provisioned that specific object. You should regularly update individual gift cards to reflect changes that affect your customers and keep them engaged. The resourceId value would be the object ID (ISSUER_ID.OBJECT_SUFFIX).

# Update
PUT https://walletobjects.googleapis.com/walletobjects/v1/giftcardobject/{resourceId}

# Patch
PATCH https://walletobjects.googleapis.com/walletobjects/v1/giftcardobject/{resourceId}

For more information, see the API reference.

Java

/**
 * Update an object.
 *
 * <p><strong>Warning:</strong> This replaces all existing object attributes!
 *
 * @param issuerId The issuer ID being used for this request.
 * @param objectSuffix Developer-defined unique ID for this pass object.
 * @return The pass object ID: "{issuerId}.{objectSuffix}"
 */
public String updateObject(String issuerId, String objectSuffix) throws IOException {
  GiftCardObject updatedObject;

  // Check if the object exists
  try {
    updatedObject =
        service.giftcardobject().get(String.format("%s.%s", issuerId, objectSuffix)).execute();
  } catch (GoogleJsonResponseException ex) {
    if (ex.getStatusCode() == 404) {
      // Object does not exist
      System.out.printf("Object %s.%s not found!%n", issuerId, objectSuffix);
      return String.format("%s.%s", issuerId, objectSuffix);
    } else {
      // Something else went wrong...
      ex.printStackTrace();
      return String.format("%s.%s", issuerId, objectSuffix);
    }
  }

  // Object exists
  // Update the object by adding a link
  Uri newLink =
      new Uri()
          .setUri("https://developers.google.com/wallet")
          .setDescription("New link description");

  if (updatedObject.getLinksModuleData() == null) {
    // LinksModuleData was not set on the original object
    updatedObject.setLinksModuleData(new LinksModuleData().setUris(List.of(newLink)));
  } else {
    updatedObject.getLinksModuleData().getUris().add(newLink);
  }

  GiftCardObject response =
      service
          .giftcardobject()
          .update(String.format("%s.%s", issuerId, objectSuffix), updatedObject)
          .execute();

  System.out.println("Object update response");
  System.out.println(response.toPrettyString());

  return response.getId();
}

PHP

/**
 * Update an object.
 *
 * **Warning:** This replaces all existing object attributes!
 *
 * @param string $issuerId The issuer ID being used for this request.
 * @param string $objectSuffix Developer-defined unique ID for this pass object.
 *
 * @return string The pass object ID: "{$issuerId}.{$objectSuffix}"
 */
public function updateObject(string $issuerId, string $objectSuffix)
{
  // Check if the object exists
  try {
    $updatedObject = $this->service->giftcardobject->get("{$issuerId}.{$objectSuffix}");
  } catch (Google\Service\Exception $ex) {
    if (!empty($ex->getErrors()) && $ex->getErrors()[0]['reason'] == 'resourceNotFound') {
      print("Object {$issuerId}.{$objectSuffix} not found!");
      return "{$issuerId}.{$objectSuffix}";
    } else {
      // Something else went wrong...
      print_r($ex);
      return "{$issuerId}.{$objectSuffix}";
    }
  }

  // Update the object by adding a link
  $newLink = new Google_Service_Walletobjects_Uri([
    'uri' => 'https://developers.google.com/wallet',
    'description' => 'New link description'
  ]);

  $linksModuleData = $updatedObject->getLinksModuleData();
  if (is_null($linksModuleData)) {
    // LinksModuleData was not set on the original object
    $linksModuleData = new Google_Service_Walletobjects_LinksModuleData([
      'uris' => []
    ]);
  }
  $uris = $linksModuleData->getUris();
  array_push(
    $uris,
    $newLink
  );
  $linksModuleData->setUris($uris);

  $updatedObject->setLinksModuleData($linksModuleData);

  $response = $this->service->giftcardobject->update("{$issuerId}.{$objectSuffix}", $updatedObject);

  print "Object update response\n";
  print_r($response);

  return $response->id;
}

Python

def update_object(self, issuer_id: str, object_suffix: str) -> str:
    """Update an object.

    **Warning:** This replaces all existing object attributes!

    Args:
        issuer_id (str): The issuer ID being used for this request.
        object_suffix (str): Developer-defined unique ID for the pass object.

    Returns:
        The pass object ID: f"{issuer_id}.{object_suffix}"
    """

    # Check if the object exists
    response = self.http_client.get(
        url=f'{self.object_url}/{issuer_id}.{object_suffix}')

    if response.status_code == 404:
        print(f'Object {issuer_id}.{object_suffix} not found!')
        return f'{issuer_id}.{object_suffix}'
    elif response.status_code != 200:
        # Something else went wrong...
        print(response.text)
        return f'{issuer_id}.{object_suffix}'

    # Object exists
    updated_object = response.json()

    # Update the object by adding a link
    new_link = {
        'uri': 'https://developers.google.com/wallet',
        'description': 'New link description'
    }
    if not updated_object.get('linksModuleData'):
        updated_object['linksModuleData'] = {'uris': []}
    updated_object['linksModuleData']['uris'].append(new_link)

    response = self.http_client.put(
        url=f'{self.object_url}/{issuer_id}.{object_suffix}',
        json=updated_object)

    print('Object update response')
    print(response.text)

    return response.json().get('id')

C#

/// <summary>
/// Update an object.
/// <para />
/// <strong>Warning:</strong> This replaces all existing class attributes!
/// </summary>
/// <param name="issuerId">The issuer ID being used for this request.</param>
/// <param name="objectSuffix">Developer-defined unique ID for this pass object.</param>
/// <returns>The pass object ID: "{issuerId}.{objectSuffix}"</returns>
public string UpdateObject(string issuerId, string objectSuffix)
{
  // Check if the object exists
  Stream responseStream = service.Giftcardobject
      .Get($"{issuerId}.{objectSuffix}")
      .ExecuteAsStream();

  StreamReader responseReader = new StreamReader(responseStream);
  JObject jsonResponse = JObject.Parse(responseReader.ReadToEnd());

  if (jsonResponse.ContainsKey("error"))
  {
    if (jsonResponse["error"].Value<int>("code") == 404)
    {
      // Object does not exist
      Console.WriteLine($"Object {issuerId}.{objectSuffix} not found!");
      return $"{issuerId}.{objectSuffix}";
    }
    else
    {
      // Something else went wrong...
      Console.WriteLine(jsonResponse.ToString());
      return $"{issuerId}.{objectSuffix}";
    }
  }

  // Object exists
  GiftCardObject updatedObject = JsonConvert.DeserializeObject<GiftCardObject>(jsonResponse.ToString());

  // Update the object by adding a link
  Google.Apis.Walletobjects.v1.Data.Uri newLink = new Google.Apis.Walletobjects.v1.Data.Uri
  {
    UriValue = "https://developers.google.com/wallet",
    Description = "New link description"
  };

  if (updatedObject.LinksModuleData == null)
  {
    // LinksModuleData was not set on the original object
    updatedObject.LinksModuleData = new LinksModuleData
    {
      Uris = new List<Google.Apis.Walletobjects.v1.Data.Uri>()
    };
  }
  updatedObject.LinksModuleData.Uris.Add(newLink);

  responseStream = service.Giftcardobject
      .Update(updatedObject, $"{issuerId}.{objectSuffix}")
      .ExecuteAsStream();

  responseReader = new StreamReader(responseStream);
  jsonResponse = JObject.Parse(responseReader.ReadToEnd());

  Console.WriteLine("Object update response");
  Console.WriteLine(jsonResponse.ToString());

  return $"{issuerId}.{objectSuffix}";
}

Node.js

/**
 * Update an object.
 *
 * **Warning:** This replaces all existing object attributes!
 *
 * @param {string} issuerId The issuer ID being used for this request.
 * @param {string} objectSuffix Developer-defined unique ID for the pass object.
 *
 * @returns {string} The pass object ID: `${issuerId}.${objectSuffix}`
 */
async updateObject(issuerId, objectSuffix) {
  let response;

  // Check if the object exists
  try {
    response = await this.httpClient.request({
      url: `${this.objectUrl}/${issuerId}.${objectSuffix}`,
      method: 'GET'
    });
  } catch (err) {
    if (err.response && err.response.status === 404) {
      console.log(`Object ${issuerId}.${objectSuffix} not found!`);
      return `${issuerId}.${objectSuffix}`;
    } else {
      // Something else went wrong...
      console.log(err);
      return `${issuerId}.${objectSuffix}`;
    }
  }

  // Object exists
  let updatedObject = response.data;

  // Update the object by adding a link
  let newLink = {
    'uri': 'https://developers.google.com/wallet',
    'description': 'New link description'
  }
  if (updatedObject['linksModuleData'] === undefined) {
    updatedObject['linksModuleData'] = {
      'uris': [newLink]
    };
  } else {
    updatedObject['linksModuleData']['uris'].push(newLink);
  }

  response = await this.httpClient.request({
    url: `${this.objectUrl}/${issuerId}.${objectSuffix}`,
    method: 'PUT',
    data: updatedObject
  });

  console.log('Object update response');
  console.log(response);

  return `${issuerId}.${objectSuffix}`;
}