npm install node-curly
...
var curly = require('node-curly');

Curly can be used to interpolate data into strings with ease. Use it like this:

curly(text, data);

text is a string that has an interpolation target in it. data is an object literal that contains what you want to inject into the string.

var str = 'Hello, my name is {{name}}';
var data = {
	name: 'Prakash'
};

var interpolatedString = curly(str, data);

This yields:

'Hello, my name is Prakash'

There are options you have as well. The default pattern curly searches for takes the form

{{\w*}}

But if you want to change this you can by altering the Curly (capital 'C') namespace:

Curly.regex = // Whatever you want here

node-curly

{{Curly}}