mozu-node-sdk/utils/get-url-template.js

Mozu JavaScript SDK for Node.js and Arc.js environments

'use strict';
/**
 * Memoized function to turn URI Template text strings into Template objects.
 *
 * Assumes that unescaped URI Template variables are required,
 * since they're always base URLs in the current codegen.
 *
 * @param {String} templateText The URI template string.
 * @returns {Template} Object with a `render` method and a `keysUsed` object.
 */

var expRe = /\{.+?\}/g;
var varnameRe = /[\w_-]+/;
function findKeys(rawTpt) {
  var matches = rawTpt.match(expRe);
  if (!matches) return [];
  return matches.map(function (x) {
    return x.match(varnameRe)[0];
  });
}

var uritemplate = require('uri-template');
var cache = {};
module.exports = function (templateText) {
  if (cache[templateText]) {
    return cache[templateText];
  }
  var tpt = uritemplate.parse(templateText);
  return cache[templateText] = {
    render: function render(x) {
      return tpt.expand(x);
    },
    keysUsed: findKeys(templateText)
  };
};