In this article, you’ll learn how to use WebSocket API with Spring Boot and build a simple status delivery application at the end.

WebSocket is a communication protocol that makes it possible to establish a two-way communication channel between a server and its client. Websockets are supported by most of the browsers that are commonly used today. 

Create an Application

First, you need to set up your Twilio account and a suitable phone number.

• If you haven't yet, sign up for a free Twilio Account
• Purchase a phone number from the Console if you don't yet have one (you'll need one with SMS capability)

Here are the steps to generate a project using Spring Initializr: 

1. Go to http://start.spring.io/.
2. Enter Artifact’s value as websocket-callback.
3. Add Websocket in the dependencies section.
4. Click Generate Project to download the project.
5. Extract the downloaded zip file.
6. Note: You will need Java 8 or …