(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.i18nextHttpBackend = f()}})(function(){var define,module,exports;return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
(function (global){(function (){
var fetchApi
if (typeof fetch === 'function') {
  if (typeof global !== 'undefined' && global.fetch) {
    fetchApi = global.fetch
  } else if (typeof window !== 'undefined' && window.fetch) {
    fetchApi = window.fetch
  }
}

if (typeof require !== 'undefined' && (typeof window === 'undefined' || typeof window.document === 'undefined')) {
  var f = fetchApi || require('cross-fetch')
  if (f.default) f = f.default
  exports.default = f
  module.exports = exports.default
}

}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"cross-fetch":5}],2:[function(require,module,exports){
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

var _utils = require("./utils.js");

var _request = _interopRequireDefault(require("./request.js"));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); Object.defineProperty(Constructor, "prototype", { writable: false }); return Constructor; }

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

var getDefaults = function getDefaults() {
  return {
    loadPath: '/locales/{{lng}}/{{ns}}.json',
    addPath: '/locales/add/{{lng}}/{{ns}}',
    allowMultiLoading: false,
    parse: function parse(data) {
      return JSON.parse(data);
    },
    stringify: JSON.stringify,
    parsePayload: function parsePayload(namespace, key, fallbackValue) {
      return _defineProperty({}, key, fallbackValue || '');
    },
    request: _request.default,
    reloadInterval: typeof window !== 'undefined' ? false : 60 * 60 * 1000,
    customHeaders: {},
    queryStringParams: {},
    crossDomain: false,
    withCredentials: false,
    overrideMimeType: false,
    requestOptions: {
      mode: 'cors',
      credentials: 'same-origin',
      cache: 'default'
    }
  };
};

var Backend = function () {
  function Backend(services) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    var allOptions = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};

    _classCallCheck(this, Backend);

    this.services = services;
    this.options = options;
    this.allOptions = allOptions;
    this.type = 'backend';
    this.init(services, options, allOptions);
  }

  _createClass(Backend, [{
    key: "init",
    value: function init(services) {
      var _this = this;

      var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
      var allOptions = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
      this.services = services;
      this.options = (0, _utils.defaults)(options, this.options || {}, getDefaults());
      this.allOptions = allOptions;

      if (this.services && this.options.reloadInterval) {
        setInterval(function () {
          return _this.reload();
        }, this.options.reloadInterval);
      }
    }
  }, {
    key: "readMulti",
    value: function readMulti(languages, namespaces, callback) {
      this._readAny(languages, languages, namespaces, namespaces, callback);
    }
  }, {
    key: "read",
    value: function read(language, namespace, callback) {
      this._readAny([language], language, [namespace], namespace, callback);
    }
  }, {
    key: "_readAny",
    value: function _readAny(languages, loadUrlLanguages, namespaces, loadUrlNamespaces, callback) {
      var _this2 = this;

      var loadPath = this.options.loadPath;

      if (typeof this.options.loadPath === 'function') {
        loadPath = this.options.loadPath(languages, namespaces);
      }

      loadPath = (0, _utils.makePromise)(loadPath);
      loadPath.then(function (resolvedLoadPath) {
        if (!resolvedLoadPath) return callback(null, {});

        var url = _this2.services.interpolator.interpolate(resolvedLoadPath, {
          lng: languages.join('+'),
          ns: namespaces.join('+')
        });

        _this2.loadUrl(url, callback, loadUrlLanguages, loadUrlNamespaces);
      });
    }
  }, {
    key: "loadUrl",
    value: function loadUrl(url, callback, languages, namespaces) {
      var _this3 = this;

      this.options.request(this.options, url, undefined, function (err, res) {
        if (res && (res.status >= 500 && res.status < 600 || !res.status)) return callback('failed loading ' + url + '; status code: ' + res.status, true);
        if (res && res.status >= 400 && res.status < 500) return callback('failed loading ' + url + '; status code: ' + res.status, false);
        if (!res && err && err.message && err.message.indexOf('Failed to fetch') > -1) return callback('failed loading ' + url + ': ' + err.message, true);
        if (err) return callback(err, false);
        var ret, parseErr;

        try {
          if (typeof res.data === 'string') {
            ret = _this3.options.parse(res.data, languages, namespaces);
          } else {
            ret = res.data;
          }
        } catch (e) {
          parseErr = 'failed parsing ' + url + ' to json';
        }

        if (parseErr) return callback(parseErr, false);
        callback(null, ret);
      });
    }
  }, {
    key: "create",
    value: function create(languages, namespace, key, fallbackValue, callback) {
      var _this4 = this;

      if (!this.options.addPath) return;
      if (typeof languages === 'string') languages = [languages];
      var payload = this.options.parsePayload(namespace, key, fallbackValue);
      var finished = 0;
      var dataArray = [];
      var resArray = [];
      languages.forEach(function (lng) {
        var addPath = _this4.options.addPath;

        if (typeof _this4.options.addPath === 'function') {
          addPath = _this4.options.addPath(lng, namespace);
        }

        var url = _this4.services.interpolator.interpolate(addPath, {
          lng: lng,
          ns: namespace
        });

        _this4.options.request(_this4.options, url, payload, function (data, res) {
          finished += 1;
          dataArray.push(data);
          resArray.push(res);

          if (finished === languages.length) {
            if (callback) callback(dataArray, resArray);
          }
        });
      });
    }
  }, {
    key: "reload",
    value: function reload() {
      var _this5 = this;

      var _this$services = this.services,
          backendConnector = _this$services.backendConnector,
          languageUtils = _this$services.languageUtils,
          logger = _this$services.logger;
      var currentLanguage = backendConnector.language;
      if (currentLanguage && currentLanguage.toLowerCase() === 'cimode') return;
      var toLoad = [];

      var append = function append(lng) {
        var lngs = languageUtils.toResolveHierarchy(lng);
        lngs.forEach(function (l) {
          if (toLoad.indexOf(l) < 0) toLoad.push(l);
        });
      };

      append(currentLanguage);
      if (this.allOptions.preload) this.allOptions.preload.forEach(function (l) {
        return append(l);
      });
      toLoad.forEach(function (lng) {
        _this5.allOptions.ns.forEach(function (ns) {
          backendConnector.read(lng, ns, 'read', null, null, function (err, data) {
            if (err) logger.warn("loading namespace ".concat(ns, " for language ").concat(lng, " failed"), err);
            if (!err && data) logger.log("loaded namespace ".concat(ns, " for language ").concat(lng), data);
            backendConnector.loaded("".concat(lng, "|").concat(ns), err, data);
          });
        });
      });
    }
  }]);

  return Backend;
}();

Backend.type = 'backend';
var _default = Backend;
exports.default = _default;
module.exports = exports.default;
},{"./request.js":3,"./utils.js":4}],3:[function(require,module,exports){
(function (global){(function (){
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

var _utils = require("./utils.js");

var fetchNode = _interopRequireWildcard(require("./getFetch.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _typeof(obj) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (obj) { return typeof obj; } : function (obj) { return obj && "function" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }, _typeof(obj); }

var fetchApi;

if (typeof fetch === 'function') {
  if (typeof global !== 'undefined' && global.fetch) {
    fetchApi = global.fetch;
  } else if (typeof window !== 'undefined' && window.fetch) {
    fetchApi = window.fetch;
  }
}

var XmlHttpRequestApi;

if ((0, _utils.hasXMLHttpRequest)()) {
  if (typeof global !== 'undefined' && global.XMLHttpRequest) {
    XmlHttpRequestApi = global.XMLHttpRequest;
  } else if (typeof window !== 'undefined' && window.XMLHttpRequest) {
    XmlHttpRequestApi = window.XMLHttpRequest;
  }
}

var ActiveXObjectApi;

if (typeof ActiveXObject === 'function') {
  if (typeof global !== 'undefined' && global.ActiveXObject) {
    ActiveXObjectApi = global.ActiveXObject;
  } else if (typeof window !== 'undefined' && window.ActiveXObject) {
    ActiveXObjectApi = window.ActiveXObject;
  }
}

if (!fetchApi && fetchNode && !XmlHttpRequestApi && !ActiveXObjectApi) fetchApi = fetchNode.default || fetchNode;
if (typeof fetchApi !== 'function') fetchApi = undefined;

var addQueryString = function addQueryString(url, params) {
  if (params && _typeof(params) === 'object') {
    var queryString = '';

    for (var paramName in params) {
      queryString += '&' + encodeURIComponent(paramName) + '=' + encodeURIComponent(params[paramName]);
    }

    if (!queryString) return url;
    url = url + (url.indexOf('?') !== -1 ? '&' : '?') + queryString.slice(1);
  }

  return url;
};

var requestWithFetch = function requestWithFetch(options, url, payload, callback) {
  if (options.queryStringParams) {
    url = addQueryString(url, options.queryStringParams);
  }

  var headers = (0, _utils.defaults)({}, typeof options.customHeaders === 'function' ? options.customHeaders() : options.customHeaders);
  if (payload) headers['Content-Type'] = 'application/json';
  fetchApi(url, (0, _utils.defaults)({
    method: payload ? 'POST' : 'GET',
    body: payload ? options.stringify(payload) : undefined,
    headers: headers
  }, typeof options.requestOptions === 'function' ? options.requestOptions(payload) : options.requestOptions)).then(function (response) {
    if (!response.ok) return callback(response.statusText || 'Error', {
      status: response.status
    });
    response.text().then(function (data) {
      callback(null, {
        status: response.status,
        data: data
      });
    }).catch(callback);
  }).catch(callback);
};

var requestWithXmlHttpRequest = function requestWithXmlHttpRequest(options, url, payload, callback) {
  if (payload && _typeof(payload) === 'object') {
    payload = addQueryString('', payload).slice(1);
  }

  if (options.queryStringParams) {
    url = addQueryString(url, options.queryStringParams);
  }

  try {
    var x;

    if (XmlHttpRequestApi) {
      x = new XmlHttpRequestApi();
    } else {
      x = new ActiveXObjectApi('MSXML2.XMLHTTP.3.0');
    }

    x.open(payload ? 'POST' : 'GET', url, 1);

    if (!options.crossDomain) {
      x.setRequestHeader('X-Requested-With', 'XMLHttpRequest');
    }

    x.withCredentials = !!options.withCredentials;

    if (payload) {
      x.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
    }

    if (x.overrideMimeType) {
      x.overrideMimeType('application/json');
    }

    var h = options.customHeaders;
    h = typeof h === 'function' ? h() : h;

    if (h) {
      for (var i in h) {
        x.setRequestHeader(i, h[i]);
      }
    }

    x.onreadystatechange = function () {
      x.readyState > 3 && callback(x.status >= 400 ? x.statusText : null, {
        status: x.status,
        data: x.responseText
      });
    };

    x.send(payload);
  } catch (e) {
    console && console.log(e);
  }
};

var request = function request(options, url, payload, callback) {
  if (typeof payload === 'function') {
    callback = payload;
    payload = undefined;
  }

  callback = callback || function () {};

  if (fetchApi) {
    return requestWithFetch(options, url, payload, callback);
  }

  if ((0, _utils.hasXMLHttpRequest)() || typeof ActiveXObject === 'function') {
    return requestWithXmlHttpRequest(options, url, payload, callback);
  }
};

var _default = request;
exports.default = _default;
module.exports = exports.default;
}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./getFetch.js":1,"./utils.js":4}],4:[function(require,module,exports){
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.defaults = defaults;
exports.hasXMLHttpRequest = hasXMLHttpRequest;
exports.makePromise = makePromise;

function _typeof(obj) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (obj) { return typeof obj; } : function (obj) { return obj && "function" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }, _typeof(obj); }

var arr = [];
var each = arr.forEach;
var slice = arr.slice;

function defaults(obj) {
  each.call(slice.call(arguments, 1), function (source) {
    if (source) {
      for (var prop in source) {
        if (obj[prop] === undefined) obj[prop] = source[prop];
      }
    }
  });
  return obj;
}

function hasXMLHttpRequest() {
  return typeof XMLHttpRequest === 'function' || (typeof XMLHttpRequest === "undefined" ? "undefined" : _typeof(XMLHttpRequest)) === 'object';
}

function isPromise(maybePromise) {
  return !!maybePromise && typeof maybePromise.then === 'function';
}

function makePromise(maybePromise) {
  if (isPromise(maybePromise)) {
    return maybePromise;
  }

  return Promise.resolve(maybePromise);
}
},{}],5:[function(require,module,exports){

},{}]},{},[2])(2)
});
