How to Add Two-Factor Authentication (2FA) Using Java and Spark
In this tutorial you'll see how to quickly add two factor authentication (2FA) to your Java application using the Vonage Verify API and Spark.
Play an Audio File Into a Voice Call with Java and Spark
This tutorial shows you how to stream audio into a call using the Nexmo Voice API.
Receiving SMS Delivery Receipts with Java and Spark
Many networks that Nexmo uses to carry your message will provide a delivery receipt. Here's how to get set up to receive them using Java and Spark.
How to Build a Simple IVR with Java and the Spark Framework
Interactive Voice Response (IVR) is a key part of many customer facing phone systems. This tutorial shows you how to build one using Java and Spark.
Build a Full Stack Nexmo App with Express and React
The Nexmo Node and JS Client SDKs along with Express and React can create a full-stack app as a basis for most things you may want from Nexmo in th...
Version 4 of the Nexmo Java Client Library Is Here
Version 4.0.0 of the Nexmo Java Client Library brings a couple of backwards compatibility breaks but a whole host of shiny new features.
Creating a Websocket Server With the Java API for Websockets
Learn how to create a WebSocket server that can receive both binary and text messages, using the Java API for WebSockets, Gradle, Gretty and Tomcat.
Creating a WebSocket Server with the Spark Framework
In this tutorial you will learn how to create a WebSocket server using Spark which can receive both binary and text messages.
Full Voice API Support Coming in Nexmo Java Client v2.0
Announcing the snapshot release of v2.0 of the Nexmo Java client library with full Voice API support available via Gradle or Maven.