add method

void add(
  1. String key,
  2. MessageCallbackFunction callback
)

Add a callback for a specific remote endpoint Key format: IPv4 "192.168.1.100:8080" or IPv6 "2001:db8::1:8080" If a callback already exists for this key, it will be replaced

Implementation

void add(String key, MessageCallbackFunction callback) {
  final handler = CallbackOnMessage();
  handler.register((params) => callback(params));
  _handlers[key] = handler;
}