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How to access global variables in Meteor template without using a helper?


I have all my image files served from a different domain, and I put that host name as a variable into Meteor.settings. Then, how can I access this variable within a Meteor template?

For example, in this template, what's the best practice to replace img.example.com with a variable defined in Meteor.settings or some other global variables? I don't think it's a good idea to pass it to every template by using helpers.

<template name="products">
  {{#each items}}
    <img src="http://img.example.com/{{id}}.png">
  {{/each}}
</template>

Solution

  • The only way how you can pass data into your templates is via helpers. You can use global helper:

    Template.registerHelper('imgExampleUrl', function() {
       return 'img.example.com';
    });
    

    Then you can use global helper in many templates:

    <template name="products">
      {{#each items}}
        <img src="http://{{imgExampleUrl}}/{{id}}.png">
      {{/each}}
    </template>
    
    <template name="otherTemplate">
        <img src="http://{{imgExampleUrl}}/{{id}}.png">
    </template>
    

    Or if you want to get value of imgExampleUrl from settings.json

    Template.registerHelper('imgExampleUrl', function() {
       return Meteor.settings.public.imgExampleUrl;
    });
    

    Your settings.json:

    {
      "public": {
        "imgExampleUrl": "img.example.com"
      }
    }