cim

CIM (Cross IM) is a distributed instant messaging system designed for developers to build scalable communication platforms. It serves as a foundation for IM applications, message push middleware for mobile apps, and message middleware for massive IoT connection scenarios. The system architecture is built on Spring Boot and Netty, utilizing Zookeeper for service registration and discovery, and Redis for caching. Key features include group and private chat, AI-integrated responses, delayed message support, and efficient communication via Google Protocol Buffer. The project supports horizontal scaling and provides a command-line client with built-in tools for history searching, online user management, and emoji support. It is container-ready with Docker support and includes comprehensive documentation for deployment and development.