IM_System_Go

An instant messaging system using go language

Overall architecture

Versions and functions

• Version 1: Basic server
• Version 2: User online and broadcast
• Version 3: User message broadcast
• Version 4: Business decoupling and encapsulation: move user online, offline and send message logic to user.go
• Version 5: Add function to query online users
• Version 6: Add function to change user name
• Version 7: Add function to force user offline after timeout
• Version 8: Support private masseges
• Version 9: Add client module to replace the nc method

To run

• Build server:

go build -o server server.go main.go user.go

• Build client:

go build -o client client.go

• Run server:

./server

• Run client:

./client