pubnub=newPubNub({publishKey: 'myPublishKey',subscribeKey: 'mySubscribeKey',userId: 'myUniqueUserId',});

// create a subscription from a channel entityconstchannel=pubnub.channel('my_channel');constsubscription=channel.subscription();subscription.subscribe();// Event-specific listenerssubscription.onMessage=(messageEvent)=>{console.log("Message event: ",messageEvent);};subscription.onPresence=(presenceEvent)=>{console.log("Presence event: ",presenceEvent);};subscription.onMessage=(messageEvent)=>{console.log("Message event: ",messageEvent);};subscription.onPresence=(presenceEvent)=>{console.log("Presence event: ",presenceEvent);};subscription.onSignal=(signalEvent)=>{console.log("Signal event: ",signalEvent);};subscription.onObjects=(objectsEvent)=>{console.log("Objects event: ",objectsEvent);};subscription.onMessageAction=(messageActionEvent)=>{console.log("Message Action event: ",messageActionEvent);};subscription.onFile=(fileEvent)=>{console.log("File event: ",fileEvent);};// Generic listenerssubscription.addListener({// Messagesmessage: function(m){constchannelName=m.channel;// Channel on which the message was publishedconstchannelGroup=m.subscription;// Channel group or wildcard subscription match (if exists)constpubTT=m.timetoken;// Publish timetokenconstmsg=m.message;// Message payloadconstpublisher=m.publisher;// Message publisher},// Presence// requires a subscription with presencepresence: function(p){constaction=p.action;// Can be join, leave, state-change, or timeoutconstchannelName=p.channel;// Channel to which the message belongsconstoccupancy=p.occupancy;// Number of users subscribed to the channelconststate=p.state;// User stateconstchannelGroup=p.subscription;// Channel group or wildcard subscription match, if anyconstpublishTime=p.timestamp;// Publish timetokenconsttimetoken=p.timetoken;// Current timetokenconstuuid=p.uuid;// UUIDs of users who are subscribed to the channel},// Signalssignal: function(s){constchannelName=s.channel;// Channel to which the signal belongsconstchannelGroup=s.subscription;// Channel group or wildcard subscription match, if anyconstpubTT=s.timetoken;// Publish timetokenconstmsg=s.message;// Payloadconstpublisher=s.publisher;// Message publisher},// App Contextobjects: (objectEvent)=>{constchannel=objectEvent.channel;// Channel to which the event belongsconstchannelGroup=objectEvent.subscription;// Channel groupconsttimetoken=objectEvent.timetoken;// Event timetokenconstpublisher=objectEvent.publisher;// UUID that made the callconstevent=objectEvent.event;// Name of the event that occurredconsttype=objectEvent.type;// Type of the event that occurredconstdata=objectEvent.data;// Data from the event that occurred},// Message ReactionsmessageAction: function(ma){constchannelName=ma.channel;// Channel to which the message belongsconstpublisher=ma.publisher;// Message publisherconstevent=ma.event;// Message action added or removedconsttype=ma.data.type;// Message action typeconstvalue=ma.data.value;// Message action valueconstmessageTimetoken=ma.data.messageTimetoken;// Timetoken of the original messageconstactionTimetoken=ma.data.actionTimetoken;// Timetoken of the message action},// File Sharingfile: function(event){constchannelName=event.channel;// Channel to which the file belongsconstchannelGroup=event.subscription;// Channel group or wildcard subscription match (if exists)constpublisher=event.publisher;// File publisherconsttimetoken=event.timetoken;// Event timetokenconstmessage=event.message;// Optional message attached to the fileconstfileId=event.file.id;// File unique idconstfileName=event.file.name;// File nameconstfileUrl=event.file.url;// File direct URL}});

constchannel=pubnub.channel('my_channel');constsubscription=channel.subscription();subscription.subscribe();try{constresult=awaitpubnub.publish({message: {such: "object",},channel: "my_channel",sendByPost: false,// true to send via poststoreInHistory: false,//override default Message Persistence optionsmeta: {cool: "meta",},// publish extra meta with the request});}catch(status){console.log(status);}