JSON Web Tokens são um padrão do setor comumente usado para transferir informações com segurança como um objeto JSON. Ao usar a API Google Wallet, você codifica os detalhes do objeto de cartões que quer usar para criar uma instância de cartão no formato JWT (pronunciado, "jot") e envia esse JWT em uma solicitação para a API Google Wallet.
Para garantir a segurança, os JWTs são assinados com uma senha secreta antes de serem enviados à API Google Wallet. Se você estiver usando a API REST da Carteira do Google, a chave secreta de assinatura será sua chave da conta de serviço do Google Cloud. Se você usa o SDK da Carteira do Google para Android, a chave secreta de assinatura é a impressão digital SHA-1 do seu app Android.
Codificar um cartão em um JWT
Quando o FlightObject
for criado, una-o a um JWT não assinado com o atributo payload.FlightObjects
, conforme mostrado no snippet a seguir:
JSON
{
"iss": "OWNER_EMAIL_ADDRESS",
"aud": "google",
"typ": "savetowallet",
"iat": "UNIX_TIME",
"origins": [],
"payload": {
"flightObjects": [ NEW_OBJECT ]
}
}
Para mais informações sobre o formato esperado de JWTs, consulte a referência de JWT.
Assinar um JWT
Para garantir a segurança, os JWTs são assinados com uma senha secreta antes de serem enviados à API Google Wallet. Se você estiver usando a API REST da Carteira do Google, a chave secreta de assinatura será sua chave da conta de serviço do Google Cloud. Se você usa o SDK da Carteira do Google para Android, a chave secreta de assinatura é a impressão digital SHA-1 do seu app Android.
Web, e-mail e SMS
O JWT precisa ser assinado usando a chave da conta de serviço associada à conta de serviço do Google Cloud que você autorizou no Business Console da Carteira do Google. A API Google Wallet vai validar essas declarações verificando a assinatura JWT.
Assinar o JWT produz um token que pode ser usado para criar uma opção "Adicionar à Carteira do Google" que pode ser usado para emitir o cartão para um usuário:
Java
Para iniciar sua integração em Java, consulte nosso exemplos de código no GitHub (link em inglês).
/** * 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/boarding-passes/rest/v1/flightclass FlightClass newClass = new FlightClass() .setId(String.format("%s.%s", issuerId, classSuffix)) .setIssuerName("Issuer name") .setReviewStatus("UNDER_REVIEW") .setLocalScheduledDepartureDateTime("2023-07-02T15:30:00") .setFlightHeader( new FlightHeader() .setCarrier(new FlightCarrier().setCarrierIataCode("LX")) .setFlightNumber("123")) .setOrigin(new AirportInfo().setAirportIataCode("LAX").setTerminal("1").setGate("A2")) .setDestination( new AirportInfo().setAirportIataCode("SFO").setTerminal("2").setGate("C3")); // See link below for more information on required properties // https://developers.google.com/wallet/tickets/boarding-passes/rest/v1/flightobject FlightObject newObject = new FlightObject() .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))) .setPassengerName("Passenger name") .setBoardingAndSeatingInfo( new BoardingAndSeatingInfo().setBoardingGroup("B").setSeatNumber("42")) .setReservationInfo(new ReservationInfo().setConfirmationCode("Confirmation code")); // 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("flightClasses", List.of(newClass)); payload.put("flightObjects", 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
Para iniciar sua integração em PHP, consulte nosso exemplos de código no GitHub (link em inglês).
/** * 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/boarding-passes/rest/v1/flightclass $newClass = new FlightClass([ 'id' => "{$issuerId}.{$classSuffix}", 'issuerName' => 'Issuer name', 'reviewStatus' => 'UNDER_REVIEW', 'localScheduledDepartureDateTime' => '2023-07-02T15:30:00', 'flightHeader' => new FlightHeader([ 'carrier' => new FlightCarrier([ 'carrierIataCode' => 'LX' ]), 'flightNumber' => '123' ]), 'origin' => new AirportInfo([ 'airportIataCode' => 'LAX', 'terminal' => '1', 'gate' => 'A2' ]), 'destination' => new AirportInfo([ 'airportIataCode' => 'SFO', 'terminal' => '2', 'gate' => 'C3' ]) ]); // See link below for more information on required properties // https://developers.google.com/wallet/tickets/boarding-passes/rest/v1/flightobject $newObject = new FlightObject([ 'id' => "{$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 ]) ], 'passengerName' => 'Passenger name', 'boardingAndSeatingInfo' => new BoardingAndSeatingInfo([ 'boardingGroup' => 'B', 'seatNumber' => '42' ]), 'reservationInfo' => new ReservationInfo([ 'confirmationCode' => 'Confirmation code' ]) ]); // 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' => [ 'flightClasses' => [ $newClass ], 'flightObjects' => [ $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
Para iniciar sua integração em Python, consulte nosso exemplos de código no GitHub (link em inglês).
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. """ # Seelink below for more information on required properties # https://developers.google.com/wallet/tickets/boarding-passes/rest/v1/flightclass new_class = { 'id': f'{issuer_id}.{class_suffix}', 'issuerName': 'Issuer name', 'reviewStatus': 'UNDER_REVIEW', 'localScheduledDepartureDateTime': '2023-07-02T15:30:00', 'flightHeader': { 'carrier': { 'carrierIataCode': 'LX' }, 'flightNumber': '123' }, 'origin': { 'airportIataCode': 'LAX', 'terminal': '1', 'gate': 'A2' }, 'destination': { 'airportIataCode': 'SFO', 'terminal': '2', 'gate': 'C3' } } # See link below for more information on required properties # https://developers.google.com/wallet/tickets/boarding-passes/rest/v1/flightclass 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 }], 'passengerName': 'Passenger name', 'boardingAndSeatingInfo': { 'boardingGroup': 'B', 'seatNumber': '42' }, 'reservationInfo': { 'confirmationCode': 'Confirmation code' } } # 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 'flightClasses': [new_class], 'flightObjects': [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#
Para iniciar sua integração em C#, consulte nosso exemplos de código no GitHub (link em inglês).
/// <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/boarding-passes/rest/v1/flightclass FlightClass newClass = new FlightClass { Id = $"{issuerId}.{classSuffix}", IssuerName = "Issuer name", ReviewStatus = "UNDER_REVIEW", LocalScheduledDepartureDateTime = "2023-07-02T15:30:00", FlightHeader = new FlightHeader { Carrier = new FlightCarrier { CarrierIataCode = "LX" }, FlightNumber = "123" }, Origin = new AirportInfo { AirportIataCode = "LAX", Terminal = "1", Gate = "A2" }, Destination = new AirportInfo { AirportIataCode = "SFO", Terminal = "2", Gate = "C3" } }; // See link below for more information on required properties // https://developers.google.com/wallet/tickets/boarding-passes/rest/v1/flightobject FlightObject newObject = new FlightObject { 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 } }, PassengerName = "Passenger name", BoardingAndSeatingInfo = new BoardingAndSeatingInfo { BoardingGroup = "B", SeatNumber = "42" }, ReservationInfo = new ReservationInfo { ConfirmationCode = "Confirmation code" } }; // 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 flightClasses = new List<JObject> { serializedClass }, flightObjects = 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 $"https://pay.google.com/gp/v/save/{token}"; }
Node.js
Para iniciar sua integração no Node, consulte nosso exemplos de código no GitHub (link em inglês).
/** * Generate a signed JWT that creates a new pass class and object. * * When the user opens the "Add to Google Wallet" URL and saves the pass to * their wallet, the pass class and object defined in the JWT are * created. This allows you to create multiple pass classes and objects in * one API call when the user saves the pass to their wallet. * * @param {string} issuerId The issuer ID being used for this request. * @param {string} classSuffix Developer-defined unique ID for the pass class. * @param {string} objectSuffix Developer-defined unique ID for the pass object. * * @returns {string} An "Add to Google Wallet" link. */ createJwtNewObjects(issuerId, classSuffix, objectSuffix) { // See link below for more information on required properties // https://developers.google.com/wallet/tickets/boarding-passes/rest/v1/flightclass let newClass = { 'id': `${issuerId}.${classSuffix}`, 'issuerName': 'Issuer name', 'reviewStatus': 'UNDER_REVIEW', 'localScheduledDepartureDateTime': '2023-07-02T15:30:00', 'flightHeader': { 'carrier': { 'carrierIataCode': 'LX' }, 'flightNumber': '123' }, 'origin': { 'airportIataCode': 'LAX', 'terminal': '1', 'gate': 'A2' }, 'destination': { 'airportIataCode': 'SFO', 'terminal': '2', 'gate': 'C3' } }; // See link below for more information on required properties // https://developers.google.com/wallet/tickets/boarding-passes/rest/v1/flightobject let newObject = { 'id': `${issuerId}.${objectSuffix}`, 'classId': `${issuerId}.${classSuffix}`, 'state': 'ACTIVE', 'heroImage': { 'sourceUri': { 'uri': 'https://farm4.staticflickr.com/3723/11177041115_6e6a3b6f49_o.jpg' }, 'contentDescription': { 'defaultValue': { 'language': 'en-US', 'value': 'Hero image description' } } }, 'textModulesData': [ { 'header': 'Text module header', 'body': 'Text module body', 'id': 'TEXT_MODULE_ID' } ], 'linksModuleData': { 'uris': [ { 'uri': 'http://maps.google.com/', 'description': 'Link module URI description', 'id': 'LINK_MODULE_URI_ID' }, { 'uri': 'tel:6505555555', 'description': 'Link module tel description', 'id': 'LINK_MODULE_TEL_ID' } ] }, 'imageModulesData': [ { 'mainImage': { 'sourceUri': { 'uri': 'http://farm4.staticflickr.com/3738/12440799783_3dc3c20606_b.jpg' }, 'contentDescription': { 'defaultValue': { 'language': 'en-US', 'value': 'Image module description' } } }, 'id': 'IMAGE_MODULE_ID' } ], 'barcode': { 'type': 'QR_CODE', 'value': 'QR code' }, 'locations': [ { 'latitude': 37.424015499999996, 'longitude': -122.09259560000001 } ], 'passengerName': 'Passenger name', 'boardingAndSeatingInfo': { 'boardingGroup': 'B', 'seatNumber': '42' }, 'reservationInfo': { 'confirmationCode': 'Confirmation code' } }; // Create the JWT claims let claims = { iss: this.credentials.client_email, aud: 'google', origins: ['www.example.com'], typ: 'savetowallet', payload: { // The listed classes and objects will be created flightClasses: [newClass], flightObjects: [newObject] } }; // The service account credentials are used to sign the JWT let token = jwt.sign(claims, this.credentials.private_key, { algorithm: 'RS256' }); console.log('Add to Google Wallet link'); console.log(`https://pay.google.com/gp/v/save/${token}`); return `https://pay.google.com/gp/v/save/${token}`; }
Go
Para iniciar sua integração em Go, consulte nossos exemplos de código completos no GitHub exemplos de código no 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 *demoFlight) createJwtNewObjects(issuerId, classSuffix, objectSuffix string) { flightObject := new(walletobjects.FlightObject) flightObject.Id = fmt.Sprintf("%s.%s", issuerId, objectSuffix) flightObject.ClassId = fmt.Sprintf("%s.%s", issuerId, classSuffix) flightObject.State = "ACTIVE" flightObject.PassengerName = "Passenger name" flightObject.ReservationInfo = &walletobjects.ReservationInfo{ ConfirmationCode: "Confirmation code", } flightJson, _ := json.Marshal(flightObject) var payload map[string]any json.Unmarshal([]byte(fmt.Sprintf(` { "flightObjects": [%s] } `, flightJson)), &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) }
Apps Android
Quando o método savePasses
é chamado para emitir um cartão a um usuário, o SDK da Carteira do Google para Android assina automaticamente o JWT com a impressão digital SHA-1 da chave de assinatura do app fornecida no Business Console da Carteira do Google. Como alternativa, também é possível emitir o cartão usando um JWT assinado anteriormente usando o método savePassesJwt
do SDK do Android.
Para mais informações, consulte Como emitir cartões com o SDK do Android.