go-tcp-chat

A simple TCP-based concurrent chat server written in Go. Clients can connect via the terminal using nc (netcat), choose a nickname, and send public or private messages to other connected users.

Features

• Handles multiple concurrent clients using Goroutines
• Prompts each user to choose a unique nickname on connect
• Broadcasts messages to all users
• Supports private messaging using @nickname message syntax
• Synchronized access to client data using sync.Mutex
• Standard library only (no external dependencies)

Requirements

• Go 1.18 or higher
• nc (netcat) installed for connecting as a client

Getting Started

Clone the Repository

git clone https://github.com/sanki92/go-tcp-chat.git
cd go-tcp-chat
go run main.go

Connect as a Client

nc localhost 8080