abstract class Amber::WebSockets::Channel

• Amber::WebSockets::Channel
• Reference
• Object

Overview

Sockets subscribe to Channels, where the communication log is handled. The channel provides functionality to handle socket join #handle_joined and socket messages handle_message(msg).

Example:

class ChatChannel < Amber::Websockets::Channel
  def handle_joined(client_socket)
    # functionality when the user joins the channel, optional
  end

  def handle_leave(client_socket)
    # functionality when the user leaves the channel, optional
  end

  # functionality when a socket sends a message to a channel, required
  def handle_message(msg)
    rebroadcast!(msg)
  end
end

Defined in:

amber/websockets/channel.cr

Constructors

• .new(topic_path : String)

Instance Method Summary

• #handle_joined(client_socket, message)

  Authorization can happen here

• #handle_leave(client_socket)
• #handle_message(client_socket, msg)
• #on_message(client_socket_id, message)

  Called from proc when message is returned from the pubsub service

Constructor Detail

Instance Method Detail