How to use Meteor methods inside of a template helper

Question

How can I define a Meteor method which is also callable in a template helper?

I have these two files:

file: lib/test.js

Meteor.methods({
             


        

Answer 1

You need to interface your return value with a Session variable as the request is asynchronous:

Template.helloWorld.helpers({
    txt : function () {
        return Session.get("txt") || "Loading";
    }
});

Template.helloWorld.created = function() {
    Meteor.call('viewTest', 'Hello World.', function(err, result) {
        Session.set("txt", result);
    });

}

So .rendered should be called once when your template loads (at least it should with the newer version of Meteor.)

The value would be called and displayed. Otherwise it would say "Loading".