Meteor client disconnected event on server

Question

Simple question, maybe simple answer: how do I know on the server that a certain client has disconnected? Basic use case: the serve would need to know if a player has dropped the connection.

http://stackoverflow.com/questions/10257958/server-cleanup-after-a-client-disconnects — Vic Goldfeld, Sep 11 '12 at 13:30
just added an alternative way of tracking user connection status on this thread http://stackoverflow.com/questions/10257958/server-cleanup-after-a-client-disconnects — Lloyd, Sep 12 '12 at 09:19

score 4 · Answer 1 · answered Sep 20 '12 at 03:09

4

In the publish function, you can watch socket close event as follows.

this.session.socket.on "close", -> # do your thing

answered Sep 20 '12 at 03:09

poordeveloper

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The correct name for the session variable is `_session`. – Jimmy Jun 28 '16 at 04:05

score 4 · Answer 2 · answered Aug 19 '13 at 14:16

4

 Meteor.publish("yourPublishFunction", function()
        {
            var id = this._session.userId;
            this._session.socket.on("close", Meteor.bindEnvironment(function()
            {
              console.log(id); // called once the user disconnects
            }, function(e){console.log(e)}));

            return YourCollection.find({});
        });

answered Aug 19 '13 at 14:16

Flavien Volken

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Why did you use `Meteor.bindEnvironment`? – Nyxynyx Jan 13 '14 at 07:01
… probably useless in most of the cases, I can imagine I was using it in my original code and just forgot to remove it for the SO post. – Flavien Volken Jan 13 '14 at 18:34

score 3 · Answer 3 · answered Aug 03 '13 at 03:18

I've created a pretty comprehensive package to keep track of all logged-in sessions from every user, as well as their IP addresses and activity:

https://github.com/mizzao/meteor-user-status

To watch for disconnects, you can just do the following, which catches both logouts and browser closes:

UserStatus.on "sessionLogout", (userId, sessionId) ->
  console.log(userId + " with session " + sessionId + " logged out")

You can also check out the code and do something similar for yourself.

score 1 · Answer 4 · answered Sep 11 '12 at 22:27

1

Maybe (in the server code)

Meteor.default_server.sessions.length

or

Meteor.default_server.stream_server.open_sockets.length

answered Sep 11 '12 at 22:27

snez

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score 0 · Accepted Answer · answered Sep 08 '12 at 20:05

0

you can do one thing make a event on server and call it from browser with ajax which call after some small time interval settimeinterval using with session values into header and if server din`t get request from user it means he dropped connection

answered Sep 08 '12 at 20:05

Gyan Chandra Srivastava

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try it and let me know if you stuck somewhere – Gyan Chandra Srivastava Sep 08 '12 at 20:06

Meteor client disconnected event on server

5 Answers5