Created
February 7, 2016 23:36
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| module.exports = function (options) { | |
| return new Promise(function (resolve, reject) { | |
| var req = new XMLHttpRequest(); | |
| req.open(options.method || 'GET', options.url, true); | |
| // Set request headers if provided. | |
| Object.keys(options.headers || {}).forEach(function (key) { | |
| req.setRequestHeader(key, options.headers[key]); | |
| }); | |
| req.onreadystatechange = function (e) { | |
| if (req.readyState !== 4) { | |
| return; | |
| } | |
| if ([200, 304].indexOf(req.status) === -1) { | |
| reject(new Error('Server responded with a status of ' + req.status)); | |
| } else { | |
| options.expect = options.expect || 'anything'; | |
| switch (options.expect.toLowerCase()) { | |
| case 'json': | |
| resolve(JSON.parse(e.target.responseText)); | |
| break; | |
| case 'xml': | |
| resolve(e.target.responseXML); | |
| break; | |
| default: | |
| resolve(e.target.responseText); | |
| break; | |
| } | |
| } | |
| }; | |
| req.send(options.data || void 0); | |
| }); | |
| } |
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