A snippet for using an creating an Agora RTM message using JSON

sendChannelMessage+snippet.js

function sendChannelMessage(property, direction){
  if (localStreams.rtmActive) {
    // use a JSON object to send our instructions in a structured way
    const jsonMsg = {
      property: property,
      direction: direction
    };
    // build the Agora RTM Message
    const msg = { 
      description: undefined,
      messageType: 'TEXT',
      rawMessage: undefined,
      text: JSON.stringify(jsonMsg) 
    }; 

    rtmChannel.sendMessage(msg).then(() => {
      // channel message-send success
      console.log('sent msg success');
    }).catch(error => {
    // channel message-send failure
    console.log('sent msg failure');
    });
  }
}