If a user buys multiple event tickets, then it's useful to allow the user to add all tickets to their device at once. You can define multiple objects or classes in a JSON Web Token (JWT), which can then be used to create an Add to Google Wallet button or link. When the user clicks the button, it will add all defined passes to the user's device at the same time.
In the JWT to be signed, include pass classes and objects in the
eventTicketClasses and eventTicketObjects arrays of the payload property,
respectively. The following examples show two variations on how to do this.
For more information on the UI representation of multiple passes, see Group multiple Event tickets.
Existing classes and objects
This example uses pre-created classes and objects and only requires the IDs of
each. Note that the classId property is optional for the pass objects. It is
shown here for demonstrative purposes.
{
"aud": "google",
"origins": [],
"iss": "your_iam_account@appspot.gserviceaccount.com",
"iat": 1534891254,
"typ": "savetowallet",
"payload": {
"eventTicketObjects": [
{
"classId": "issuerId.eventTicketClassSuffix",
"id": "issuerId.eventTicketObjectSuffix_01"
},
{
"classId": "issuerId.eventTicketClassSuffix",
"id": "issuerId.eventTicketObjectSuffix_02"
}
]
}
}
Create new classes and objects
This example defines a class and multiple child objects. Both the class and objects are created by Google Wallet only when the user clicks the Add to Google Wallet link and adds the passes to their device.
{
"aud": "google",
"origins": [],
"iss": "your_iam_account@appspot.gserviceaccount.com",
"iat": 1534891254,
"typ": "savetowallet",
"payload": {
"eventTicketClasses": [
{
"id": "issuerId.eventTicketClassSuffix",
"issuerName": "Google Wallet Events",
"reviewStatus": "underReview",
"eventName": {
"defaultValue": {
"language": "en-US",
"value": "Coding for Coffee"
}
},
"venue": {
"name": {
"defaultValue": {
"language": "en-US",
"value": "1600 Amphitheatre Pkwy, Mountain View, CA 94043"
}
},
"address": {
"defaultValue": {
"language": "en-US",
"value": "1600 Amphitheatre Pkwy, Mountain View, CA 94043"
}
}
},
"dateTime": {
"doorsOpenLabel": "doorsOpen",
"doorsOpen": "2027-04-12T19:20",
"start": "2027-04-12T20:00",
"end": "2027-04-12T21:20"
}
}
],
"eventTicketObjects": [
{
"id": "issuerId.eventTicketObjectSuffix_1",
"classId": "issuerId.eventTicketClassSuffix",
"state": "active"
},
{
"id": "issuerId.eventTicketObjectSuffix_2",
"classId": "issuerId.eventTicketClassSuffix",
"state": "active"
}
]
}
}
The following code example demonstrates creating an Add to Google Wallet
link with a new eventTicketClass and eventTicketObject that will be created
when the user clicks the button and adds the pass to their device.
Java
To start your integration in Java, refer to our complete code samples on GitHub.
/** * Generate a signed JWT that creates a new pass class and object. * * <p>When the user opens the "Add to Google Wallet" URL and saves the pass to their wallet, the * pass class and object defined in the JWT are created. This allows you to create multiple pass * classes and objects in one API call when the user saves the pass to their wallet. * * @param issuerId The issuer ID being used for this request. * @param classSuffix Developer-defined unique ID for this pass class. * @param objectSuffix Developer-defined unique ID for the pass object. * @return An "Add to Google Wallet" link. */ public String createJWTNewObjects(String issuerId, String classSuffix, String objectSuffix) { // See link below for more information on required properties // https://developers.google.com/wallet/tickets/events/rest/v1/eventticketclass EventTicketClass newClass = new EventTicketClass() .setId(String.format("%s.%s", issuerId, classSuffix)) .setIssuerName("Issuer name") .setReviewStatus("UNDER_REVIEW") .setEventName( new LocalizedString() .setDefaultValue( new TranslatedString().setLanguage("en-US").setValue("Event name"))); // See link below for more information on required properties // https://developers.google.com/wallet/tickets/events/rest/v1/eventticketobject EventTicketObject newObject = new EventTicketObject() .setId(String.format("%s.%s", issuerId, objectSuffix)) .setClassId(String.format("%s.%s", issuerId, classSuffix)) .setState("ACTIVE") .setHeroImage( new Image() .setSourceUri( new ImageUri() .setUri( "https://farm4.staticflickr.com/3723/11177041115_6e6a3b6f49_o.jpg")) .setContentDescription( new LocalizedString() .setDefaultValue( new TranslatedString() .setLanguage("en-US") .setValue("Hero image description")))) .setTextModulesData( List.of( new TextModuleData() .setHeader("Text module header") .setBody("Text module body") .setId("TEXT_MODULE_ID"))) .setLinksModuleData( new LinksModuleData() .setUris( Arrays.asList( new Uri() .setUri("http://maps.google.com/") .setDescription("Link module URI description") .setId("LINK_MODULE_URI_ID"), new Uri() .setUri("tel:6505555555") .setDescription("Link module tel description") .setId("LINK_MODULE_TEL_ID")))) .setImageModulesData( List.of( new ImageModuleData() .setMainImage( new Image() .setSourceUri( new ImageUri() .setUri( "http://farm4.staticflickr.com/3738/12440799783_3dc3c20606_b.jpg")) .setContentDescription( new LocalizedString() .setDefaultValue( new TranslatedString() .setLanguage("en-US") .setValue("Image module description")))) .setId("IMAGE_MODULE_ID"))) .setBarcode(new Barcode().setType("QR_CODE").setValue("QR code value")) .setLocations( List.of( new LatLongPoint() .setLatitude(37.424015499999996) .setLongitude(-122.09259560000001))) .setSeatInfo( new EventSeat() .setSeat( new LocalizedString() .setDefaultValue( new TranslatedString().setLanguage("en-US").setValue("42"))) .setRow( new LocalizedString() .setDefaultValue( new TranslatedString().setLanguage("en-US").setValue("G3"))) .setSection( new LocalizedString() .setDefaultValue( new TranslatedString().setLanguage("en-US").setValue("5"))) .setGate( new LocalizedString() .setDefaultValue( new TranslatedString().setLanguage("en-US").setValue("A")))) .setTicketHolderName("Ticket holder name") .setTicketNumber("Ticket number"); // Create the JWT as a HashMap object HashMap<String, Object> claims = new HashMap<String, Object>(); claims.put("iss", ((ServiceAccountCredentials) credentials).getClientEmail()); claims.put("aud", "google"); claims.put("origins", List.of("www.example.com")); claims.put("typ", "savetowallet"); // Create the Google Wallet payload and add to the JWT HashMap<String, Object> payload = new HashMap<String, Object>(); payload.put("eventTicketClasses", List.of(newClass)); payload.put("eventTicketObjects", List.of(newObject)); claims.put("payload", payload); // The service account credentials are used to sign the JWT Algorithm algorithm = Algorithm.RSA256( null, (RSAPrivateKey) ((ServiceAccountCredentials) credentials).getPrivateKey()); String token = JWT.create().withPayload(claims).sign(algorithm); System.out.println("Add to Google Wallet link"); System.out.printf("https://pay.google.com/gp/v/save/%s%n", token); return String.format("https://pay.google.com/gp/v/save/%s", token); }
PHP
To start your integration in PHP, refer to our complete code samples on GitHub.
/** * Generate a signed JWT that creates a new pass class and object. * * When the user opens the "Add to Google Wallet" URL and saves the pass to * their wallet, the pass class and object defined in the JWT are * created. This allows you to create multiple pass classes and objects in * one API call when the user saves the pass to their wallet. * * @param string $issuerId The issuer ID being used for this request. * @param string $classSuffix Developer-defined unique ID for the pass class. * @param string $objectSuffix Developer-defined unique ID for the pass object. * * @return string An "Add to Google Wallet" link. */ public function createJwtNewObjects(string $issuerId, string $classSuffix, string $objectSuffix) { // See link below for more information on required properties // https://developers.google.com/wallet/tickets/events/rest/v1/eventticketclass $newClass = new EventTicketClass([ 'id' => "{$issuerId}.{$classSuffix}", 'issuerName' => 'Issuer name', 'reviewStatus' => 'UNDER_REVIEW', 'eventName' => new LocalizedString([ 'defaultValue' => new TranslatedString([ 'language' => 'en-US', 'value' => 'Event name' ]) ]) ]); // See link below for more information on required properties // https://developers.google.com/wallet/tickets/events/rest/v1/eventticketobject $newObject = new EventTicketObject([ 'id' => "{$issuerId}.{$objectSuffix}", 'classId' => "{$issuerId}.{$classSuffix}", 'state' => 'ACTIVE', 'heroImage' => new Image([ 'sourceUri' => new ImageUri([ 'uri' => 'https://farm4.staticflickr.com/3723/11177041115_6e6a3b6f49_o.jpg' ]), 'contentDescription' => new LocalizedString([ 'defaultValue' => new TranslatedString([ 'language' => 'en-US', 'value' => 'Hero image description' ]) ]) ]), 'textModulesData' => [ new TextModuleData([ 'header' => 'Text module header', 'body' => 'Text module body', 'id' => 'TEXT_MODULE_ID' ]) ], 'linksModuleData' => new LinksModuleData([ 'uris' => [ new Uri([ 'uri' => 'http://maps.google.com/', 'description' => 'Link module URI description', 'id' => 'LINK_MODULE_URI_ID' ]), new Uri([ 'uri' => 'tel:6505555555', 'description' => 'Link module tel description', 'id' => 'LINK_MODULE_TEL_ID' ]) ] ]), 'imageModulesData' => [ new ImageModuleData([ 'mainImage' => new Image([ 'sourceUri' => new ImageUri([ 'uri' => 'http://farm4.staticflickr.com/3738/12440799783_3dc3c20606_b.jpg' ]), 'contentDescription' => new LocalizedString([ 'defaultValue' => new TranslatedString([ 'language' => 'en-US', 'value' => 'Image module description' ]) ]) ]), 'id' => 'IMAGE_MODULE_ID' ]) ], 'barcode' => new Barcode([ 'type' => 'QR_CODE', 'value' => 'QR code value' ]), 'locations' => [ new LatLongPoint([ 'latitude' => 37.424015499999996, 'longitude' => -122.09259560000001 ]) ], 'seatInfo' => new EventSeat([ 'seat' => new LocalizedString([ 'defaultValue' => new TranslatedString([ 'language' => 'en-US', 'value' => '42' ]) ]), 'row' => new LocalizedString([ 'defaultValue' => new TranslatedString([ 'language' => 'en-US', 'value' => 'G3' ]) ]), 'section' => new LocalizedString([ 'defaultValue' => new TranslatedString([ 'language' => 'en-US', 'value' => '5' ]) ]), 'gate' => new LocalizedString([ 'defaultValue' => new TranslatedString([ 'language' => 'en-US', 'value' => 'A' ]) ]) ]), 'ticketHolderName' => 'Ticket holder name', 'ticketNumber' => 'Ticket number' ]); // The service account credentials are used to sign the JWT $serviceAccount = json_decode(file_get_contents($this->keyFilePath), true); // Create the JWT as an array of key/value pairs $claims = [ 'iss' => $serviceAccount['client_email'], 'aud' => 'google', 'origins' => ['www.example.com'], 'typ' => 'savetowallet', 'payload' => [ 'eventTicketClasses' => [ $newClass ], 'eventTicketObjects' => [ $newObject ] ] ]; $token = JWT::encode( $claims, $serviceAccount['private_key'], 'RS256' ); print "Add to Google Wallet link\n"; print "https://pay.google.com/gp/v/save/{$token}"; return "https://pay.google.com/gp/v/save/{$token}"; }
Python
To start your integration in Python, refer to our complete code samples on GitHub.
def create_jwt_new_objects(self, issuer_id: str, class_suffix: str, object_suffix: str) -> str: """Generate a signed JWT that creates a new pass class and object. When the user opens the "Add to Google Wallet" URL and saves the pass to their wallet, the pass class and object defined in the JWT are created. This allows you to create multiple pass classes and objects in one API call when the user saves the pass to their wallet. Args: issuer_id (str): The issuer ID being used for this request. class_suffix (str): Developer-defined unique ID for the pass class. object_suffix (str): Developer-defined unique ID for the pass object. Returns: An "Add to Google Wallet" link. """ # See link below for more information on required properties # https://developers.google.com/wallet/tickets/events/rest/v1/eventticketclass new_class = { 'id': f'{issuer_id}.{class_suffix}', 'issuerName': 'Issuer name', 'reviewStatus': 'UNDER_REVIEW', 'eventName': { 'defaultValue': { 'language': 'en-US', 'value': 'Event name' } } } # See link below for more information on required properties # https://developers.google.com/wallet/tickets/events/rest/v1/eventticketobject new_object = { 'id': f'{issuer_id}.{object_suffix}', 'classId': f'{issuer_id}.{class_suffix}', 'state': 'ACTIVE', 'heroImage': { 'sourceUri': { 'uri': 'https://farm4.staticflickr.com/3723/11177041115_6e6a3b6f49_o.jpg' }, 'contentDescription': { 'defaultValue': { 'language': 'en-US', 'value': 'Hero image description' } } }, 'textModulesData': [{ 'header': 'Text module header', 'body': 'Text module body', 'id': 'TEXT_MODULE_ID' }], 'linksModuleData': { 'uris': [{ 'uri': 'http://maps.google.com/', 'description': 'Link module URI description', 'id': 'LINK_MODULE_URI_ID' }, { 'uri': 'tel:6505555555', 'description': 'Link module tel description', 'id': 'LINK_MODULE_TEL_ID' }] }, 'imageModulesData': [{ 'mainImage': { 'sourceUri': { 'uri': 'http://farm4.staticflickr.com/3738/12440799783_3dc3c20606_b.jpg' }, 'contentDescription': { 'defaultValue': { 'language': 'en-US', 'value': 'Image module description' } } }, 'id': 'IMAGE_MODULE_ID' }], 'barcode': { 'type': 'QR_CODE', 'value': 'QR code' }, 'locations': [{ 'latitude': 37.424015499999996, 'longitude': -122.09259560000001 }], 'seatInfo': { 'seat': { 'defaultValue': { 'language': 'en-US', 'value': '42' } }, 'row': { 'defaultValue': { 'language': 'en-US', 'value': 'G3' } }, 'section': { 'defaultValue': { 'language': 'en-US', 'value': '5' } }, 'gate': { 'defaultValue': { 'language': 'en-US', 'value': 'A' } } }, 'ticketHolderName': 'Ticket holder name', 'ticketNumber': 'Ticket number' } # Create the JWT claims claims = { 'iss': self.credentials.service_account_email, 'aud': 'google', 'origins': ['www.example.com'], 'typ': 'savetowallet', 'payload': { # The listed classes and objects will be created 'eventTicketClasses': [new_class], 'eventTicketObjects': [new_object] } } # The service account credentials are used to sign the JWT signer = crypt.RSASigner.from_service_account_file(self.key_file_path) token = jwt.encode(signer, claims).decode('utf-8') print('Add to Google Wallet link') print(f'https://pay.google.com/gp/v/save/{token}') return f'https://pay.google.com/gp/v/save/{token}'
C#
To start your integration in C#, refer to our complete code samples on GitHub.
/// <summary> /// Generate a signed JWT that creates a new pass class and object. /// <para /> /// When the user opens the "Add to Google Wallet" URL and saves the pass to /// their wallet, the pass class and object defined in the JWT are created. /// This allows you to create multiple pass classes and objects in one API /// call when the user saves the pass to their wallet. /// <para /> /// The Google Wallet C# library uses Newtonsoft.Json.JsonPropertyAttribute /// to specify the property names when converting objects to JSON. The /// Newtonsoft.Json.JsonConvert.SerializeObject method will automatically /// serialize the object with the right property names. /// </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> /// <param name="objectSuffix">Developer-defined unique ID for the pass object.</param> /// <returns>An "Add to Google Wallet" link.</returns> public string CreateJWTNewObjects(string issuerId, string classSuffix, string objectSuffix) { // Ignore null values when serializing to/from JSON JsonSerializerSettings excludeNulls = new JsonSerializerSettings() { NullValueHandling = NullValueHandling.Ignore }; // See link below for more information on required properties // https://developers.google.com/wallet/tickets/events/rest/v1/eventticketclass EventTicketClass newClass = new EventTicketClass { Id = $"{issuerId}.{classSuffix}", IssuerName = "Issuer name", ReviewStatus = "UNDER_REVIEW", EventId = classSuffix, EventName = new LocalizedString { DefaultValue = new TranslatedString { Language = "en-US", Value = "Event name" } } }; // See link below for more information on required properties // https://developers.google.com/wallet/tickets/events/rest/v1/eventticketobject EventTicketObject newObject = new EventTicketObject { Id = $"{issuerId}.{objectSuffix}", ClassId = $"{issuerId}.{classSuffix}", State = "ACTIVE", HeroImage = new Image { SourceUri = new ImageUri { Uri = "https://farm4.staticflickr.com/3723/11177041115_6e6a3b6f49_o.jpg" }, ContentDescription = new LocalizedString { DefaultValue = new TranslatedString { Language = "en-US", Value = "Hero image description" } } }, TextModulesData = new List<TextModuleData> { new TextModuleData { Header = "Text module header", Body = "Text module body", Id = "TEXT_MODULE_ID" } }, LinksModuleData = new LinksModuleData { Uris = new List<Google.Apis.Walletobjects.v1.Data.Uri> { new Google.Apis.Walletobjects.v1.Data.Uri { UriValue = "http://maps.google.com/", Description = "Link module URI description", Id = "LINK_MODULE_URI_ID" }, new Google.Apis.Walletobjects.v1.Data.Uri { UriValue = "tel:6505555555", Description = "Link module tel description", Id = "LINK_MODULE_TEL_ID" } } }, ImageModulesData = new List<ImageModuleData> { new ImageModuleData { MainImage = new Image { SourceUri = new ImageUri { Uri = "http://farm4.staticflickr.com/3738/12440799783_3dc3c20606_b.jpg" }, ContentDescription = new LocalizedString { DefaultValue = new TranslatedString { Language = "en-US", Value = "Image module description" } } }, Id = "IMAGE_MODULE_ID" } }, Barcode = new Barcode { Type = "QR_CODE", Value = "QR code" }, Locations = new List<LatLongPoint> { new LatLongPoint { Latitude = 37.424015499999996, Longitude = -122.09259560000001 } }, SeatInfo = new EventSeat { Seat = new LocalizedString { DefaultValue = new TranslatedString { Language = "en-US", Value = "42" } }, Row = new LocalizedString { DefaultValue = new TranslatedString { Language = "en-US", Value = "G3" } }, Section = new LocalizedString { DefaultValue = new TranslatedString { Language = "en-US", Value = "5" } }, Gate = new LocalizedString { DefaultValue = new TranslatedString { Language = "en-US", Value = "A" } } }, TicketHolderName = "Ticket holder name", TicketNumber = "Ticket number" }; // Create JSON representations of the class and object JObject serializedClass = JObject.Parse( JsonConvert.SerializeObject(newClass, excludeNulls)); JObject serializedObject = JObject.Parse( JsonConvert.SerializeObject(newObject, excludeNulls)); // Create the JWT as a JSON object JObject jwtPayload = JObject.Parse(JsonConvert.SerializeObject(new { iss = credentials.Id, aud = "google", origins = new List<string> { "www.example.com" }, typ = "savetowallet", payload = JObject.Parse(JsonConvert.SerializeObject(new { // The listed classes and objects will be created // when the user saves the pass to their wallet eventTicketClasses = new List<JObject> { serializedClass }, eventTicketObjects = new List<JObject> { serializedObject } })) })); // Deserialize into a JwtPayload JwtPayload claims = JwtPayload.Deserialize(jwtPayload.ToString()); // The service account credentials are used to sign the JWT RsaSecurityKey key = new RsaSecurityKey(credentials.Key); SigningCredentials signingCredentials = new SigningCredentials( key, SecurityAlgorithms.RsaSha256); JwtSecurityToken jwt = new JwtSecurityToken( new JwtHeader(signingCredentials), claims); string token = new JwtSecurityTokenHandler().WriteToken(jwt); Console.WriteLine("Add to Google Wallet link"); Console.WriteLine($"https://pay.google.com/gp/v/save/{token}"); return $"https://pay.google.com/gp/v/save/{token}"; }
Node.js
To start your integration in Node, refer to our complete code samples on GitHub.
/** * Generate a signed JWT that creates a new pass class and object. * * When the user opens the "Add to Google Wallet" URL and saves the pass to * their wallet, the pass class and object defined in the JWT are * created. This allows you to create multiple pass classes and objects in * one API call when the user saves the pass to their wallet. * * @param {string} issuerId The issuer ID being used for this request. * @param {string} classSuffix Developer-defined unique ID for the pass class. * @param {string} objectSuffix Developer-defined unique ID for the pass object. * * @returns {string} An "Add to Google Wallet" link. */ createJwtNewObjects(issuerId, classSuffix, objectSuffix) { // See link below for more information on required properties // https://developers.google.com/wallet/tickets/events/rest/v1/eventticketclass let newClass = { 'id': `${issuerId}.${classSuffix}`, 'issuerName': 'Issuer name', 'reviewStatus': 'UNDER_REVIEW', 'eventName': { 'defaultValue': { 'language': 'en-US', 'value': 'Event name' } } }; // See link below for more information on required properties // https://developers.google.com/wallet/tickets/events/rest/v1/eventticketobject let newObject = { 'id': `${issuerId}.${objectSuffix}`, 'classId': `${issuerId}.${classSuffix}`, 'state': 'ACTIVE', 'heroImage': { 'sourceUri': { 'uri': 'https://farm4.staticflickr.com/3723/11177041115_6e6a3b6f49_o.jpg' }, 'contentDescription': { 'defaultValue': { 'language': 'en-US', 'value': 'Hero image description' } } }, 'textModulesData': [ { 'header': 'Text module header', 'body': 'Text module body', 'id': 'TEXT_MODULE_ID' } ], 'linksModuleData': { 'uris': [ { 'uri': 'http://maps.google.com/', 'description': 'Link module URI description', 'id': 'LINK_MODULE_URI_ID' }, { 'uri': 'tel:6505555555', 'description': 'Link module tel description', 'id': 'LINK_MODULE_TEL_ID' } ] }, 'imageModulesData': [ { 'mainImage': { 'sourceUri': { 'uri': 'http://farm4.staticflickr.com/3738/12440799783_3dc3c20606_b.jpg' }, 'contentDescription': { 'defaultValue': { 'language': 'en-US', 'value': 'Image module description' } } }, 'id': 'IMAGE_MODULE_ID' } ], 'barcode': { 'type': 'QR_CODE', 'value': 'QR code' }, 'locations': [ { 'latitude': 37.424015499999996, 'longitude': -122.09259560000001 } ], 'seatInfo': { 'seat': { 'defaultValue': { 'language': 'en-US', 'value': '42' } }, 'row': { 'defaultValue': { 'language': 'en-US', 'value': 'G3' } }, 'section': { 'defaultValue': { 'language': 'en-US', 'value': '5' } }, 'gate': { 'defaultValue': { 'language': 'en-US', 'value': 'A' } } }, 'ticketHolderName': 'Ticket holder name', 'ticketNumber': 'Ticket number' }; // Create the JWT claims let claims = { iss: this.credentials.client_email, aud: 'google', origins: ['www.example.com'], typ: 'savetowallet', payload: { // The listed classes and objects will be created eventTicketClasses: [newClass], eventTicketObjects: [newObject] } }; // The service account credentials are used to sign the JWT let token = jwt.sign(claims, this.credentials.private_key, { algorithm: 'RS256' }); console.log('Add to Google Wallet link'); console.log(`https://pay.google.com/gp/v/save/${token}`); return `https://pay.google.com/gp/v/save/${token}`; }
Go
To start your integration in Go, refer to our complete code samples on GitHub code samples on Github.
// Generate a signed JWT that creates a new pass class and object. // // When the user opens the "Add to Google Wallet" URL and saves the pass to // their wallet, the pass class and object defined in the JWT are // created. This allows you to create multiple pass classes and objects in // one API call when the user saves the pass to their wallet. func (d *demoEventticket) createJwtNewObjects(issuerId, classSuffix, objectSuffix string) { eventticketObject := new(walletobjects.EventTicketObject) eventticketObject.Id = fmt.Sprintf("%s.%s", issuerId, objectSuffix) eventticketObject.ClassId = fmt.Sprintf("%s.%s", issuerId, classSuffix) eventticketObject.TicketHolderName = "Ticket holder name" eventticketObject.TicketNumber = "Ticket number" eventticketObject.State = "ACTIVE" eventticketJson, _ := json.Marshal(eventticketObject) var payload map[string]any json.Unmarshal([]byte(fmt.Sprintf(` { "eventticketObjects": [%s] } `, eventticketJson)), &payload) claims := jwt.MapClaims{ "iss": d.credentials.Email, "aud": "google", "origins": []string{"www.example.com"}, "typ": "savetowallet", "payload": payload, } // The service account credentials are used to sign the JWT key, _ := jwt.ParseRSAPrivateKeyFromPEM(d.credentials.PrivateKey) token, _ := jwt.NewWithClaims(jwt.SigningMethodRS256, claims).SignedString(key) fmt.Println("Add to Google Wallet link") fmt.Println("https://pay.google.com/gp/v/save/" + token) }