usage example of "sendDirectlyToAll" of simplewebrtc? - simplewebrtc

Question

I am trying to send text to all my peers and I found this function "sendDirectlyToAll".
For your convenience, I put the function information here:
sendDirectlyToAll(channelLabel, messageType, payload) - broadcasts a
message to all peers in the room via a dataChannel.
string channelLabel - the label for the dataChannel to send on.
string messageType - the key for the type of message being sent.
object payload - an arbitrary value or object to send to peers.
I do not understand the meaning of 2nd and 3rd parameters. Could you kindly show me an example how to use this function?
Thanks
Derek

Answer 1

Here is my example showing how i managed to get it working:
/**
* send directly to all other peers
*/
oSimpleWebRTC.sendDirectlyToAll(
'meta', // sLabel
'info', // sType - will become oData.sType
{"foo": "bar"} // oData - will become oData.payload
);
/**
* Handle incoming dataChannel messages sent by "sendDirectlyToAll"
* #param {object} oPeer The Remote sending Peer Object
* #param {string} sLabel A Label, e.g.: 'meta'
* #param {object} oData Object containing the relevant Data
*/
oSimpleWebRTC.on('channelMessage', function (oPeer, sLabel, oData) {
// e.g. we want label "hark" to be ignored, as it fires continiously.
if ('hark' === sLabel) {
return true;
}
if ('meta' === sLabel) {
if ('info' === oData.type)
{
// do your stuff
console.log(oData.payload.foo);
}
}
}
Also, There are Answers to this question at the official SimpleWebRTC issues Tracker: https://github.com/andyet/SimpleWebRTC/issues/450
See my blog post to this example: https://blog.ueffing.net/post/2017/02/22/simplewebrtc-usage-example-of-senddirectlytoall/