CODEWITHSUNDEEP
javascriptmeteorservermeteor-accounts
equalsound
equalsound

Reputation: 327

Meteor: onConnection, check if user is logged in

I'm using the onConnection hook and some template helpers to do some stuff with statistics. But now, I want't to exclude these operations when I'm a registered user. The Problem, I can't use Meteor.user() in the onConnection hook, so how can i check if a user is logged in ?

Concerning code, there is not much to show

Meteor.onConnection(function(conn) {
 if(Meteor.user()) {
  console.log("you are logged in")
 } else {
  console.log("u are not logged in")
 }
});

It's not the true example but it shows simple what i want to do The Error 

err [Error: Meteor.userId can only be invoked in method calls. Use this.userId in publish functions.]

I understand that i can just use Meteor.user() in methods, but how can i find out in the onConnection if a user is logged in ?

Upvotes: 1

Views: 919

Answers (2)

Pavlo Sirous
Pavlo Sirous

Reputation: 161

For statistics purposes I'd recommend to use publications. They have more sophisticated api which allows you to have more control over your connection.

Meteor.publish('users.trackPresence', function() {
  // Both this.userId && this.connection are available to be called from here

  this.onStop(function(){
    // user went offline
  });

  this.ready();
});

and on the client you can check if user is present and not even subscribe if this is the case:

Tracker.autorun(function(){
  if (!Meteor.userId())
    Meteor.subscribe('users.trackPresence');
});

Meteor automatically handles unsubscribe/resubscribe when you subscribe from within a Tracker.autorun

read more about pubsub api here https://docs.meteor.com/api/pubsub.html

Upvotes: 1

jordanwillis
jordanwillis

Reputation: 10705

Obviously as you stated, the Meteor docs do not provide any insight for how to achieve this. I spent a decent amount of time going thru the accounts-base source and don't see any way to do what you are asking natively.

With that said, if you could update the Users collection each time they login and save their current IP address, then you could use this as a way to see if the current connection is logged in. Here is an example.

Meteor.onConnection((connection) => {
  var user = Meteor.users.findOne({
    'user.profile.currentIp': connection.clientAddress
  });

  if (user) {
    console.log("you are logged in")
  } else {
    console.log("u are not logged in")
  }
});

Be sure to add login and logout hooks to set and remove the user's current IP. I have not tested this approach, but in theory it should work.

Upvotes: 0

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