Using 'this' in channel:'user.' + this.user.id

[GordonChen13]

can I do something like this to apply current vue instance scope in channel: 'user.' + this.user.id

channel: function (vm) {
return 'user.' + vm.user.id;
}

[happyDemon]

If the user property has been defined before you return it here it should be fine.

[GordonChen13]

But I got error like this:

[Vue warn]: Error in created hook: "TypeError: e.startsWith is not a function"

app.js:6812 TypeError: e.startsWith is not a function
    at app.js:99918
    at VueComponent.created (app.js:99918)
    at callHook (app.js:8911)
    at VueComponent.Vue._init (app.js:10472)
    at new VueComponent (app.js:10642)
    at createComponentInstanceForVnode (app.js:9924)
    at init (app.js:9741)
    at app.js:9941
    at createComponent (app.js:11393)
    at createElm (app.js:11336)

even console.log(vm) get the same error. I think channel: function (vm) {
return 'user.' + vm.user.id;
} wasn't support yet. I can use this.$echo.channel() function to get what I need , But if it can support
channel:..... ,it is better. Thanks a lot!

[happyDemon]

oh, I'm sorry, I read through that too quickly while I was at work.

but you're right, only strings are currently supported. I'll see if I can whip something up this weekend.

My main worry is though, is that the channel gets initialised on the created hook.
So the user info, or at least the id should be present before that happens.
Accessing the VM does not seem like the most logical option, unless you're pulling in data and setting it to the VM in the beforeCreate hook.

[tomlankhorst]

You could join a channel in mounted and unsubscribe manually in beforeDestroy.

export default { 
  // data: ... 
  mounted: function(){
    this.$echo.channel('My.Channel.'+this.me); //... etc. 
  },
  beforeDestroy: function(){
    this.$echo.leave('My.Channel.'+this.me)
  }
}