Basic Process Communication

Coming Soon

This lesson will teach you how processes communicate and coordinate in Erlang systems. You’ll learn how to:

• Send and receive messages between processes
• Implement synchronous and asynchronous communication patterns
• Use process linking for fault propagation
• Create basic supervision relationships
• Build reliable message-passing protocols

What You’ll Build

By the end of this lesson, you’ll have implemented:

• A chat user process that handles messages
• Process linking for fault tolerance
• Basic supervision patterns
• Message protocol design for chat operations
• A foundation for the OTP patterns to come

Key Concepts Preview

% Message passing
UserPid ! {send_message, "Hello world"},
receive
    {message_sent, Result} -> handle_result(Result);
    {error, Reason} -> handle_error(Reason)
end.

% Process linking
link(UserPid),
trap_exit(true).

This lesson completes the Foundation Phase by building on the process creation from Lesson 7 and prepares you for the OTP principles we’ll explore in Lesson 9.

This lesson is currently under development. Check back soon for the complete content!