Sending Data

Iris Protocol does support sending Data from the sender (Channel) to the registered listeners

Sending Data

To send data just simply prepare the data to send it in your Channel (sender)

import { Channel } from "@aurelianoa/iris-channels/contracts/channel/Channel.sol";

contract MyChannel is Channel {
  
  function foo() {
    /// your logic

    /// broadcast the message
    address networkAddress = "0x...."
    string memory myEventIndex = "myEventIndex"
    bytes memory data = abi.encode("my data");

    broadcast(networkAddress, myEventIndex, data);
  }

}

Receiving your data

In yopur listeners just simply access the data on the onReceivedMessage

import { Listener } from "@aurelianoa/iris-channels/contracts/listener/Listener.sol";

contract MyListener is Listener {
  
  /// Override the onReceivedMessage function
  function onReceivedMessage(address sender, string memory eventIndex, bytes memory data) internal override {
        if(isChannelAvailable(sender) && compareIndex(eventIndex, "myEventIndex")) {
            /// access the data from the message
            (_string) = abi.decode(data);
            /// your logic here
        }
    }
}

Access the last message

The Listener.sol does store the last message sent from a specific channel and to access it simply call lastMessages[channel] mapping.