Java tutorial
/* * Copyright (c) Microsoft. All rights reserved. * Licensed under the MIT license. See LICENSE file in the project root for full license information. */ package com.microsoft.azure.iot.service.sdk; import com.google.gson.*; import com.microsoft.azure.iot.service.auth.SymmetricKey; import java.lang.reflect.Type; public class DeviceSerializer implements JsonSerializer<Device> { private class Authentication { private SymmetricKey symmetricKey; public Authentication(SymmetricKey symmetricKey) { this.symmetricKey = symmetricKey; } } Gson gson = new Gson(); @Override public JsonElement serialize(Device device, Type type, JsonSerializationContext jsonSerializationContext) { // CODES_SRS_SERVICE_SDK_JAVA_DEVICE_SERIALIZER_15_001: [The function shall serialize a Device object // into a JSON string recognized by the service] Authentication authentication = new Authentication(device.symmetricKey); JsonElement authenticationJsonElement = gson.toJsonTree(authentication, Authentication.class); JsonElement finalJson = gson.toJsonTree(device, type); finalJson.getAsJsonObject().add("authentication", authenticationJsonElement); return finalJson; } }