Java tutorial
/** * Copyright (c) Microsoft Corporation. All rights reserved. * Licensed under the MIT License. See License.txt in the project root for * license information. */ package com.microsoft.azure.keyvault.webkey; import java.io.IOException; import org.apache.commons.codec.binary.Base64; import com.fasterxml.jackson.core.JsonParser; import com.fasterxml.jackson.core.JsonProcessingException; import com.fasterxml.jackson.databind.DeserializationContext; import com.fasterxml.jackson.databind.JsonDeserializer; /** * The base64 URL JSON deserializer. */ public class Base64UrlJsonDeserializer extends JsonDeserializer<byte[]> { static final Base64 BASE64 = new Base64(-1, null, true); @Override public byte[] deserialize(JsonParser jp, DeserializationContext ctxt) throws IOException, JsonProcessingException { String text = jp.getText(); if (text != null) { return BASE64.decode(text); } return null; } }