This course navigates through the process of creating a real-time chatroom application utilizing Deno and WebSockets. It delves into establishing WebSocket connections, managing real-time bi-directional communication between the server (Deno) and clients, and handling connection lifecycles for robust chat interactions. Participants learn how Deno’s secure runtime environment is leveraged to build server-side components and how WebSockets facilitate pushing messages to clients instantaneously, enabling the real-time functionality critical to chat applications. The course focuses on practical implementations, such as broadcasting messages to connected clients, orchestrating chat rooms, and ensuring scalability and performance. By the end of the course, learners can architect and implement a real-time chatroom that capitalizes on Deno’s strengths and the seamless connectivity of WebSockets.