RS Chat

Description

This application provides a simple chat that allows users to comunicate with each other by using WebSockets. The chats are divided into:

• Degree chats
  • Where all users of a degree can comunicate with each other.
• Subject chats
  • Where all users of a subject can comunicate with each other.
• Group chats
  • Where all users of a group can comunicate with each other.
• Individual chats
  • Where any two users can comunicate with each other.

Users can send any type of message including text, images, videos, audio, files, etc. All of these messages are stored in a bucket (provided by the AWS S3 service). They are retrieved from the bucket when a user connects to any chat.

Tech stack

• Java 17
• Spring Boot
• Spring Boot Security
• WebSockets (realtime communication)
• MySQL (production)
• JPA
• Lombok (annotations to generate the code)
• H2 database (test)
• Slf4j (logging facade)
• Logback (logging)
• JUnit (testing)
• Mockito (testing)
• Guava (utilities)
• CommonsIO (utilities)
• Gson (JSON utilities)
• S3 (storage)
• Java JWT (authentication)

UML diagram of the application