WebSocket Tutorial with Spring Boot | Build One On One Chat Application

Buy me a coffee: https://ko-fi.com/boualiali 🚀 Explore the power of WebSockets, Spring Boot, JavaScript, and MongoDB in our latest video on Ali Bouali! Join me, Alibou, your seasoned software engineer guide, as we dive into the heart of real-time communication and data persistence by building a real time One on One Chat application.

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👨‍💻 In this concise tutorial, we'll build a one-on-one chat application, leveraging the seamless integration of WebSockets with Spring Boot, enhancing the user experience with dynamic JavaScript interactions, and ensuring data longevity through MongoDB storage.

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Table of Content:
00:00 Introduction
02:00 Old application architecture
03:23 How One to One WebSocket communication looks like
05:07 Chat WebSocket Overview
09:24 Database diagran
10:43 Create a new Spring boot project
12:14 Create the docker compose file
17:14 Configure the database connection
19:02 Add WebSocket configuration
26:33 Create the user document
28:14 Create the user service
32:31 Implement the user controller
37:25 Create ChatRoom document
38:40 Implement ChatRoom service
45:32 Create ChatMessage document
47:21 Implement the ChatMessage service
52:54 Implement the Chat Controller
01:01:33 Create the index.html file
01:03:21 UI Overview
01:08:50 Connect the user and subscribe to notifications
01:22:08 Find and display connected users
01:28:39 Display the user element
01:33:37 Test the changes
01:37:02 Add event listener to the selected user
01:42:30 Display user message
01:47:30 Send a message
01:50:49 Implement receive message method
01:57:48 Test the changes
02:00:00 Implement the logout
02:03:49 Test the application
02:08:10 Outro