nsolid-manager/lib/utils.js

A manager that sets up and runs N|Solid for you

'use strict';

var request = require('request');

/*
Make an request and return a promise.
Assumes incoming body is JSON and parseable.
*/
function requestAsync(url) {
  return new Promise(function (resolve, reject) {
    request({
      url: url,
      headers: {
        'user-agent': 'nsolid-manager'
      }
    }, function (error, response, body) {

      if (!error && response.statusCode === 200) {
        try {
          var jsonBody = JSON.parse(body);
          resolve(jsonBody);
        } catch (e) {
          reject(new Error('Problem parsing incoming json for ' + url));
        }
      } else {
        reject(error || new Error('Invalid response from ' + url));
      }
    });
  });
}

/*
Accepts a string that is formatted in template string
format, and returns a new string
*/
function templateString(string, context) {
  return string.replace(/\$\{([^\$\{\}\r\n]*)\}/g, function (match, id) {
    return context[id];
  });
}

module.exports = {
  requestAsync: requestAsync,
  templateString: templateString
};