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arguments[1] : {};\n\n    _classCallCheck(this, Backend);\n\n    this.init(services, options);\n    this.type = 'backend';\n  }\n\n  _createClass(Backend, [{\n    key: \"init\",\n    value: function init(services) {\n      var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n      this.services = services;\n      this.options = defaults(options, this.options || {}, getDefaults());\n    }\n  }, {\n    key: \"readMulti\",\n    value: function readMulti(languages, namespaces, callback) {\n      var loadPath = this.options.loadPath;\n\n      if (typeof this.options.loadPath === 'function') {\n        loadPath = this.options.loadPath(languages, namespaces);\n      }\n\n      var url = this.services.interpolator.interpolate(loadPath, {\n        lng: languages.join('+'),\n        ns: namespaces.join('+')\n      });\n      this.loadUrl(url, callback);\n    }\n  }, {\n    key: \"read\",\n    value: function read(language, namespace, callback) {\n      var loadPath = this.options.loadPath;\n\n      if (typeof this.options.loadPath === 'function') {\n        loadPath = this.options.loadPath([language], [namespace]);\n      }\n\n      var url = this.services.interpolator.interpolate(loadPath, {\n        lng: language,\n        ns: namespace\n      });\n      this.loadUrl(url, callback);\n    }\n  }, {\n    key: \"loadUrl\",\n    value: function loadUrl(url, callback) {\n      var _this = this;\n\n      this.options.ajax(url, this.options, function (data, xhr) {\n        if (xhr.status >= 500 && xhr.status < 600) return callback('failed loading ' + url, true\n        /* retry */\n        );\n        if (xhr.status >= 400 && xhr.status < 500) return callback('failed loading ' + url, false\n        /* no retry */\n        );\n        var ret, err;\n\n        try {\n          ret = _this.options.parse(data, url);\n        } catch (e) {\n          err = 'failed parsing ' + url + ' to json';\n        }\n\n        if (err) return callback(err, false);\n        callback(null, ret);\n      });\n    }\n  }, {\n    key: \"create\",\n    value: function create(languages, namespace, key, fallbackValue) {\n      var _this2 = this;\n\n      if (typeof languages === 'string') languages = [languages];\n      var payload = this.options.parsePayload(namespace, key, fallbackValue);\n      languages.forEach(function (lng) {\n        var url = _this2.services.interpolator.interpolate(_this2.options.addPath, {\n          lng: lng,\n          ns: namespace\n        });\n\n        _this2.options.ajax(url, _this2.options, function (data, xhr) {//const statusCode = xhr.status.toString();\n          // TODO: if statusCode === 4xx do log\n        }, payload);\n      });\n    }\n  }]);\n\n  return Backend;\n}();\n\nBackend.type = 'backend';\n\nmodule.exports = Backend;\n"],"names":["_interopDefault","ex","_classCallCheck","_createClass","_defineProperty","_typeof","arr","each","forEach","slice","addQueryString","url","params","queryString","e","encodeURIComponent","paramName","indexOf","ajax","options","callback","data","cache","Date","queryStringParams","x","XMLHttpRequest","ActiveXObject","open","crossDomain","setRequestHeader","withCredentials","overrideMimeType","h","customHeaders","i","onreadystatechange","readyState","responseText","send","console","log","Backend","services","arguments","length","undefined","this","init","type","key","value","obj","call","source","prop","defaults","loadPath","addPath","allowMultiLoading","parse","JSON","parsePayload","namespace","fallbackValue","languages","namespaces","interpolator","interpolate","lng","join","ns","loadUrl","language","_this","xhr","status","ret","err","_this2","payload","module","exports"],"sourceRoot":""}