Chat Application

C++ Chat Console application using C++17 and boost::asio asynchronous library(https://www.boost.org/doc/libs/1_62_0/doc/html/boost_asio.html). The project generates 2 executables (./server and ./client). The server app retains the message history(default: last 100 messages) so that they can be broadcast to every new joined user. Ctrl+C is used to exit the apps.

Server architecture

• The server app uses the Observer design pattern to update all participants.
• The first received message is the name of the new user (stored in a map)
• The Participant class represents the observer in the model and the Room class represents the subject
• The Session class is responsible with connecting the Server with the client (Participant)

Usage:

• Client app
  • ./client - starts the executable, then it prompts for the ip, port number and name
  • ./client <ip address> <port number> - start the executable with the ip and port as arguments, the programme will prompt user to enter name
  • ./client <ip address> <port number> <name> - all variables are specified as arguments
• Server app
  • ./server <port number>