axios.js

// Axios v1.1.2 Copyright (c) 2022 Matt Zabriskie and contributors
function bind(fn, thisArg) {
  return function wrap() {
    return fn.apply(thisArg, arguments);
  };
}

// utils is a library of generic helper functions non-specific to axios

const {toString} = Object.prototype;
const {getPrototypeOf} = Object;

const kindOf = (cache => thing => {
    const str = toString.call(thing);
    return cache[str] || (cache[str] = str.slice(8, -1).toLowerCase());
})(Object.create(null));

const kindOfTest = (type) => {
  type = type.toLowerCase();
  return (thing) => kindOf(thing) === type
};

const typeOfTest = type => thing => typeof thing === type;

/**
 * Determine if a value is an Array
 *
 * @param {Object} val The value to test
 *
 * @returns {boolean} True if value is an Array, otherwise false
 */
const {isArray} = Array;

/**
 * Determine if a value is undefined
 *
 * @param {*} val The value to test
 *
 * @returns {boolean} True if the value is undefined, otherwise false
 */
const isUndefined = typeOfTest('undefined');

/**
 * Determine if a value is a Buffer
 *
 * @param {*} val The value to test
 *
 * @returns {boolean} True if value is a Buffer, otherwise false
 */
function isBuffer(val) {
  return val !== null && !isUndefined(val) && val.constructor !== null && !isUndefined(val.constructor)
    && isFunction(val.constructor.isBuffer) && val.constructor.isBuffer(val);
}

/**
 * Determine if a value is an ArrayBuffer
 *
 * @param {*} val The value to test
 *
 * @returns {boolean} True if value is an ArrayBuffer, otherwise false
 */
const isArrayBuffer = kindOfTest('ArrayBuffer');


/**
 * Determine if a value is a view on an ArrayBuffer
 *
 * @param {*} val The value to test
 *
 * @returns {boolean} True if value is a view on an ArrayBuffer, otherwise false
 */
function isArrayBufferView(val) {
  let result;
  if ((typeof ArrayBuffer !== 'undefined') && (ArrayBuffer.isView)) {
    result = ArrayBuffer.isView(val);
  } else {
    result = (val) && (val.buffer) && (isArrayBuffer(val.buffer));
  }
  return result;
}

/**
 * Determine if a value is a String
 *
 * @param {*} val The value to test
 *
 * @returns {boolean} True if value is a String, otherwise false
 */
const isString = typeOfTest('string');

/**
 * Determine if a value is a Function
 *
 * @param {*} val The value to test
 * @returns {boolean} True if value is a Function, otherwise false
 */
const isFunction = typeOfTest('function');

/**
 * Determine if a value is a Number
 *
 * @param {*} val The value to test
 *
 * @returns {boolean} True if value is a Number, otherwise false
 */
const isNumber = typeOfTest('number');

/**
 * Determine if a value is an Object
 *
 * @param {*} thing The value to test
 *
 * @returns {boolean} True if value is an Object, otherwise false
 */
const isObject = (thing) => thing !== null && typeof thing === 'object';

/**
 * Determine if a value is a Boolean
 *
 * @param {*} thing The value to test
 * @returns {boolean} True if value is a Boolean, otherwise false
 */
const isBoolean = thing => thing === true || thing === false;

/**
 * Determine if a value is a plain Object
 *
 * @param {*} val The value to test
 *
 * @returns {boolean} True if value is a plain Object, otherwise false
 */
const isPlainObject = (val) => {
  if (kindOf(val) !== 'object') {
    return false;
  }

  const prototype = getPrototypeOf(val);
  return (prototype === null || prototype === Object.prototype || Object.getPrototypeOf(prototype) === null) && !(Symbol.toStringTag in val) && !(Symbol.iterator in val);
};

/**
 * Determine if a value is a Date
 *
 * @param {*} val The value to test
 *
 * @returns {boolean} True if value is a Date, otherwise false
 */
const isDate = kindOfTest('Date');

/**
 * Determine if a value is a File
 *
 * @param {*} val The value to test
 *
 * @returns {boolean} True if value is a File, otherwise false
 */
const isFile = kindOfTest('File');

/**
 * Determine if a value is a Blob
 *
 * @param {*} val The value to test
 *
 * @returns {boolean} True if value is a Blob, otherwise false
 */
const isBlob = kindOfTest('Blob');

/**
 * Determine if a value is a FileList
 *
 * @param {*} val The value to test
 *
 * @returns {boolean} True if value is a File, otherwise false
 */
const isFileList = kindOfTest('FileList');

/**
 * Determine if a value is a Stream
 *
 * @param {*} val The value to test
 *
 * @returns {boolean} True if value is a Stream, otherwise false
 */
const isStream = (val) => isObject(val) && isFunction(val.pipe);

/**
 * Determine if a value is a FormData
 *
 * @param {*} thing The value to test
 *
 * @returns {boolean} True if value is an FormData, otherwise false
 */
const isFormData = (thing) => {
  const pattern = '[object FormData]';
  return thing && (
    (typeof FormData === 'function' && thing instanceof FormData) ||
    toString.call(thing) === pattern ||
    (isFunction(thing.toString) && thing.toString() === pattern)
  );
};

/**
 * Determine if a value is a URLSearchParams object
 *
 * @param {*} val The value to test
 *
 * @returns {boolean} True if value is a URLSearchParams object, otherwise false
 */
const isURLSearchParams = kindOfTest('URLSearchParams');

/**
 * Trim excess whitespace off the beginning and end of a string
 *
 * @param {String} str The String to trim
 *
 * @returns {String} The String freed of excess whitespace
 */
const trim = (str) => str.trim ?
  str.trim() : str.replace(/^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g, '');

/**
 * Iterate over an Array or an Object invoking a function for each item.
 *
 * If `obj` is an Array callback will be called passing
 * the value, index, and complete array for each item.
 *
 * If 'obj' is an Object callback will be called passing
 * the value, key, and complete object for each property.
 *
 * @param {Object|Array} obj The object to iterate
 * @param {Function} fn The callback to invoke for each item
 *
 * @param {Boolean} [allOwnKeys = false]
 * @returns {void}
 */
function forEach(obj, fn, {allOwnKeys = false} = {}) {
  // Don't bother if no value provided
  if (obj === null || typeof obj === 'undefined') {
    return;
  }

  let i;
  let l;

  // Force an array if not already something iterable
  if (typeof obj !== 'object') {
    /*eslint no-param-reassign:0*/
    obj = [obj];
  }

  if (isArray(obj)) {
    // Iterate over array values
    for (i = 0, l = obj.length; i < l; i++) {
      fn.call(null, obj[i], i, obj);
    }
  } else {
    // Iterate over object keys
    const keys = allOwnKeys ? Object.getOwnPropertyNames(obj) : Object.keys(obj);
    const len = keys.length;
    let key;

    for (i = 0; i < len; i++) {
      key = keys[i];
      fn.call(null, obj[key], key, obj);
    }
  }
}

/**
 * Accepts varargs expecting each argument to be an object, then
 * immutably merges the properties of each object and returns result.
 *
 * When multiple objects contain the same key the later object in
 * the arguments list will take precedence.
 *
 * Example:
 *
 * ```js
 * var result = merge({foo: 123}, {foo: 456});
 * console.log(result.foo); // outputs 456
 * ```
 *
 * @param {Object} obj1 Object to merge
 *
 * @returns {Object} Result of all merge properties
 */
function merge(/* obj1, obj2, obj3, ... */) {
  const result = {};
  const assignValue = (val, key) => {
    if (isPlainObject(result[key]) && isPlainObject(val)) {
      result[key] = merge(result[key], val);
    } else if (isPlainObject(val)) {
      result[key] = merge({}, val);
    } else if (isArray(val)) {
      result[key] = val.slice();
    } else {
      result[key] = val;
    }
  };

  for (let i = 0, l = arguments.length; i < l; i++) {
    arguments[i] && forEach(arguments[i], assignValue);
  }
  return result;
}

/**
 * Extends object a by mutably adding to it the properties of object b.
 *
 * @param {Object} a The object to be extended
 * @param {Object} b The object to copy properties from
 * @param {Object} thisArg The object to bind function to
 *
 * @param {Boolean} [allOwnKeys]
 * @returns {Object} The resulting value of object a
 */
const extend = (a, b, thisArg, {allOwnKeys}= {}) => {
  forEach(b, (val, key) => {
    if (thisArg && isFunction(val)) {
      a[key] = bind(val, thisArg);
    } else {
      a[key] = val;
    }
  }, {allOwnKeys});
  return a;
};

/**
 * Remove byte order marker. This catches EF BB BF (the UTF-8 BOM)
 *
 * @param {string} content with BOM
 *
 * @returns {string} content value without BOM
 */
const stripBOM = (content) => {
  if (content.charCodeAt(0) === 0xFEFF) {
    content = content.slice(1);
  }
  return content;
};

/**
 * Inherit the prototype methods from one constructor into another
 * @param {function} constructor
 * @param {function} superConstructor
 * @param {object} [props]
 * @param {object} [descriptors]
 *
 * @returns {void}
 */
const inherits = (constructor, superConstructor, props, descriptors) => {
  constructor.prototype = Object.create(superConstructor.prototype, descriptors);
  constructor.prototype.constructor = constructor;
  Object.defineProperty(constructor, 'super', {
    value: superConstructor.prototype
  });
  props && Object.assign(constructor.prototype, props);
};

/**
 * Resolve object with deep prototype chain to a flat object
 * @param {Object} sourceObj source object
 * @param {Object} [destObj]
 * @param {Function|Boolean} [filter]
 * @param {Function} [propFilter]
 *
 * @returns {Object}
 */
const toFlatObject = (sourceObj, destObj, filter, propFilter) => {
  let props;
  let i;
  let prop;
  const merged = {};

  destObj = destObj || {};
  // eslint-disable-next-line no-eq-null,eqeqeq
  if (sourceObj == null) return destObj;

  do {
    props = Object.getOwnPropertyNames(sourceObj);
    i = props.length;
    while (i-- > 0) {
      prop = props[i];
      if ((!propFilter || propFilter(prop, sourceObj, destObj)) && !merged[prop]) {
        destObj[prop] = sourceObj[prop];
        merged[prop] = true;
      }
    }
    sourceObj = filter !== false && getPrototypeOf(sourceObj);
  } while (sourceObj && (!filter || filter(sourceObj, destObj)) && sourceObj !== Object.prototype);

  return destObj;
};

/**
 * Determines whether a string ends with the characters of a specified string
 *
 * @param {String} str
 * @param {String} searchString
 * @param {Number} [position= 0]
 *
 * @returns {boolean}
 */
const endsWith = (str, searchString, position) => {
  str = String(str);
  if (position === undefined || position > str.length) {
    position = str.length;
  }
  position -= searchString.length;
  const lastIndex = str.indexOf(searchString, position);
  return lastIndex !== -1 && lastIndex === position;
};


/**
 * Returns new array from array like object or null if failed
 *
 * @param {*} [thing]
 *
 * @returns {?Array}
 */
const toArray = (thing) => {
  if (!thing) return null;
  if (isArray(thing)) return thing;
  let i = thing.length;
  if (!isNumber(i)) return null;
  const arr = new Array(i);
  while (i-- > 0) {
    arr[i] = thing[i];
  }
  return arr;
};

/**
 * Checking if the Uint8Array exists and if it does, it returns a function that checks if the
 * thing passed in is an instance of Uint8Array
 *
 * @param {TypedArray}
 *
 * @returns {Array}
 */
// eslint-disable-next-line func-names
const isTypedArray = (TypedArray => {
  // eslint-disable-next-line func-names
  return thing => {
    return TypedArray && thing instanceof TypedArray;
  };
})(typeof Uint8Array !== 'undefined' && getPrototypeOf(Uint8Array));

/**
 * For each entry in the object, call the function with the key and value.
 *
 * @param {Object<any, any>} obj - The object to iterate over.
 * @param {Function} fn - The function to call for each entry.
 *
 * @returns {void}
 */
const forEachEntry = (obj, fn) => {
  const generator = obj && obj[Symbol.iterator];

  const iterator = generator.call(obj);

  let result;

  while ((result = iterator.next()) && !result.done) {
    const pair = result.value;
    fn.call(obj, pair[0], pair[1]);
  }
};

/**
 * It takes a regular expression and a string, and returns an array of all the matches
 *
 * @param {string} regExp - The regular expression to match against.
 * @param {string} str - The string to search.
 *
 * @returns {Array<boolean>}
 */
const matchAll = (regExp, str) => {
  let matches;
  const arr = [];

  while ((matches = regExp.exec(str)) !== null) {
    arr.push(matches);
  }

  return arr;
};

/* Checking if the kindOfTest function returns true when passed an HTMLFormElement. */
const isHTMLForm = kindOfTest('HTMLFormElement');

const toCamelCase = str => {
  return str.toLowerCase().replace(/[_-\s]([a-z\d])(\w*)/g,
    function replacer(m, p1, p2) {
      return p1.toUpperCase() + p2;
    }
  );
};

/* Creating a function that will check if an object has a property. */
const hasOwnProperty = (({hasOwnProperty}) => (obj, prop) => hasOwnProperty.call(obj, prop))(Object.prototype);

/**
 * Determine if a value is a RegExp object
 *
 * @param {*} val The value to test
 *
 * @returns {boolean} True if value is a RegExp object, otherwise false
 */
const isRegExp = kindOfTest('RegExp');

const reduceDescriptors = (obj, reducer) => {
  const descriptors = Object.getOwnPropertyDescriptors(obj);
  const reducedDescriptors = {};

  forEach(descriptors, (descriptor, name) => {
    if (reducer(descriptor, name, obj) !== false) {
      reducedDescriptors[name] = descriptor;
    }
  });

  Object.defineProperties(obj, reducedDescriptors);
};

/**
 * Makes all methods read-only
 * @param {Object} obj
 */

const freezeMethods = (obj) => {
  reduceDescriptors(obj, (descriptor, name) => {
    const value = obj[name];

    if (!isFunction(value)) return;

    descriptor.enumerable = false;

    if ('writable' in descriptor) {
      descriptor.writable = false;
      return;
    }

    if (!descriptor.set) {
      descriptor.set = () => {
        throw Error('Can not read-only method \'' + name + '\'');
      };
    }
  });
};

const toObjectSet = (arrayOrString, delimiter) => {
  const obj = {};

  const define = (arr) => {
    arr.forEach(value => {
      obj[value] = true;
    });
  };

  isArray(arrayOrString) ? define(arrayOrString) : define(String(arrayOrString).split(delimiter));

  return obj;
};

const noop = () => {};

const toFiniteNumber = (value, defaultValue) => {
  value = +value;
  return Number.isFinite(value) ? value : defaultValue;
};

const utils = {
  isArray,
  isArrayBuffer,
  isBuffer,
  isFormData,
  isArrayBufferView,
  isString,
  isNumber,
  isBoolean,
  isObject,
  isPlainObject,
  isUndefined,
  isDate,
  isFile,
  isBlob,
  isRegExp,
  isFunction,
  isStream,
  isURLSearchParams,
  isTypedArray,
  isFileList,
  forEach,
  merge,
  extend,
  trim,
  stripBOM,
  inherits,
  toFlatObject,
  kindOf,
  kindOfTest,
  endsWith,
  toArray,
  forEachEntry,
  matchAll,
  isHTMLForm,
  hasOwnProperty,
  hasOwnProp: hasOwnProperty, // an alias to avoid ESLint no-prototype-builtins detection
  reduceDescriptors,
  freezeMethods,
  toObjectSet,
  toCamelCase,
  noop,
  toFiniteNumber
};

/**
 * Create an Error with the specified message, config, error code, request and response.
 *
 * @param {string} message The error message.
 * @param {string} [code] The error code (for example, 'ECONNABORTED').
 * @param {Object} [config] The config.
 * @param {Object} [request] The request.
 * @param {Object} [response] The response.
 *
 * @returns {Error} The created error.
 */
function AxiosError(message, code, config, request, response) {
  Error.call(this);

  if (Error.captureStackTrace) {
    Error.captureStackTrace(this, this.constructor);
  } else {
    this.stack = (new Error()).stack;
  }

  this.message = message;
  this.name = 'AxiosError';
  code && (this.code = code);
  config && (this.config = config);
  request && (this.request = request);
  response && (this.response = response);
}

utils.inherits(AxiosError, Error, {
  toJSON: function toJSON() {
    return {
      // Standard
      message: this.message,
      name: this.name,
      // Microsoft
      description: this.description,
      number: this.number,
      // Mozilla
      fileName: this.fileName,
      lineNumber: this.lineNumber,
      columnNumber: this.columnNumber,
      stack: this.stack,
      // Axios
      config: this.config,
      code: this.code,
      status: this.response && this.response.status ? this.response.status : null
    };
  }
});

const prototype$1 = AxiosError.prototype;
const descriptors = {};

[
  'ERR_BAD_OPTION_VALUE',
  'ERR_BAD_OPTION',
  'ECONNABORTED',
  'ETIMEDOUT',
  'ERR_NETWORK',
  'ERR_FR_TOO_MANY_REDIRECTS',
  'ERR_DEPRECATED',
  'ERR_BAD_RESPONSE',
  'ERR_BAD_REQUEST',
  'ERR_CANCELED',
  'ERR_NOT_SUPPORT',
  'ERR_INVALID_URL'
// eslint-disable-next-line func-names
].forEach(code => {
  descriptors[code] = {value: code};
});

Object.defineProperties(AxiosError, descriptors);
Object.defineProperty(prototype$1, 'isAxiosError', {value: true});

// eslint-disable-next-line func-names
AxiosError.from = (error, code, config, request, response, customProps) => {
  const axiosError = Object.create(prototype$1);

  utils.toFlatObject(error, axiosError, function filter(obj) {
    return obj !== Error.prototype;
  }, prop => {
    return prop !== 'isAxiosError';
  });

  AxiosError.call(axiosError, error.message, code, config, request, response);

  axiosError.cause = error;

  axiosError.name = error.name;

  customProps && Object.assign(axiosError, customProps);

  return axiosError;
};

/* eslint-env browser */
var browser = typeof self == 'object' ? self.FormData : window.FormData;

/**
 * Determines if the given thing is a array or js object.
 *
 * @param {string} thing - The object or array to be visited.
 *
 * @returns {boolean}
 */
function isVisitable(thing) {
  return utils.isPlainObject(thing) || utils.isArray(thing);
}

/**
 * It removes the brackets from the end of a string
 *
 * @param {string} key - The key of the parameter.
 *
 * @returns {string} the key without the brackets.
 */
function removeBrackets(key) {
  return utils.endsWith(key, '[]') ? key.slice(0, -2) : key;
}

/**
 * It takes a path, a key, and a boolean, and returns a string
 *
 * @param {string} path - The path to the current key.
 * @param {string} key - The key of the current object being iterated over.
 * @param {string} dots - If true, the key will be rendered with dots instead of brackets.
 *
 * @returns {string} The path to the current key.
 */
function renderKey(path, key, dots) {
  if (!path) return key;
  return path.concat(key).map(function each(token, i) {
    // eslint-disable-next-line no-param-reassign
    token = removeBrackets(token);
    return !dots && i ? '[' + token + ']' : token;
  }).join(dots ? '.' : '');
}

/**
 * If the array is an array and none of its elements are visitable, then it's a flat array.
 *
 * @param {Array<any>} arr - The array to check
 *
 * @returns {boolean}
 */
function isFlatArray(arr) {
  return utils.isArray(arr) && !arr.some(isVisitable);
}

const predicates = utils.toFlatObject(utils, {}, null, function filter(prop) {
  return /^is[A-Z]/.test(prop);
});

/**
 * If the thing is a FormData object, return true, otherwise return false.
 *
 * @param {unknown} thing - The thing to check.
 *
 * @returns {boolean}
 */
function isSpecCompliant(thing) {
  return thing && utils.isFunction(thing.append) && thing[Symbol.toStringTag] === 'FormData' && thing[Symbol.iterator];
}

/**
 * Convert a data object to FormData
 *
 * @param {Object} obj
 * @param {?Object} [formData]
 * @param {?Object} [options]
 * @param {Function} [options.visitor]
 * @param {Boolean} [options.metaTokens = true]
 * @param {Boolean} [options.dots = false]
 * @param {?Boolean} [options.indexes = false]
 *
 * @returns {Object}
 **/

/**
 * It converts an object into a FormData object
 *
 * @param {Object<any, any>} obj - The object to convert to form data.
 * @param {string} formData - The FormData object to append to.
 * @param {Object<string, any>} options
 *
 * @returns
 */
function toFormData(obj, formData, options) {
  if (!utils.isObject(obj)) {
    throw new TypeError('target must be an object');
  }

  // eslint-disable-next-line no-param-reassign
  formData = formData || new (browser || FormData)();

  // eslint-disable-next-line no-param-reassign
  options = utils.toFlatObject(options, {
    metaTokens: true,
    dots: false,
    indexes: false
  }, false, function defined(option, source) {
    // eslint-disable-next-line no-eq-null,eqeqeq
    return !utils.isUndefined(source[option]);
  });

  const metaTokens = options.metaTokens;
  // eslint-disable-next-line no-use-before-define
  const visitor = options.visitor || defaultVisitor;
  const dots = options.dots;
  const indexes = options.indexes;
  const _Blob = options.Blob || typeof Blob !== 'undefined' && Blob;
  const useBlob = _Blob && isSpecCompliant(formData);

  if (!utils.isFunction(visitor)) {
    throw new TypeError('visitor must be a function');
  }

  function convertValue(value) {
    if (value === null) return '';

    if (utils.isDate(value)) {
      return value.toISOString();
    }

    if (!useBlob && utils.isBlob(value)) {
      throw new AxiosError('Blob is not supported. Use a Buffer instead.');
    }

    if (utils.isArrayBuffer(value) || utils.isTypedArray(value)) {
      return useBlob && typeof Blob === 'function' ? new Blob([value]) : Buffer.from(value);
    }

    return value;
  }

  /**
   * Default visitor.
   *
   * @param {*} value
   * @param {String|Number} key
   * @param {Array<String|Number>} path
   * @this {FormData}
   *
   * @returns {boolean} return true to visit the each prop of the value recursively
   */
  function defaultVisitor(value, key, path) {
    let arr = value;

    if (value && !path && typeof value === 'object') {
      if (utils.endsWith(key, '{}')) {
        // eslint-disable-next-line no-param-reassign
        key = metaTokens ? key : key.slice(0, -2);
        // eslint-disable-next-line no-param-reassign
        value = JSON.stringify(value);
      } else if (
        (utils.isArray(value) && isFlatArray(value)) ||
        (utils.isFileList(value) || utils.endsWith(key, '[]') && (arr = utils.toArray(value))
        )) {
        // eslint-disable-next-line no-param-reassign
        key = removeBrackets(key);

        arr.forEach(function each(el, index) {
          !utils.isUndefined(el) && formData.append(
            // eslint-disable-next-line no-nested-ternary
            indexes === true ? renderKey([key], index, dots) : (indexes === null ? key : key + '[]'),
            convertValue(el)
          );
        });
        return false;
      }
    }

    if (isVisitable(value)) {
      return true;
    }

    formData.append(renderKey(path, key, dots), convertValue(value));

    return false;
  }

  const stack = [];

  const exposedHelpers = Object.assign(predicates, {
    defaultVisitor,
    convertValue,
    isVisitable
  });

  function build(value, path) {
    if (utils.isUndefined(value)) return;

    if (stack.indexOf(value) !== -1) {
      throw Error('Circular reference detected in ' + path.join('.'));
    }

    stack.push(value);

    utils.forEach(value, function each(el, key) {
      const result = !utils.isUndefined(el) && visitor.call(
        formData, el, utils.isString(key) ? key.trim() : key, path, exposedHelpers
      );

      if (result === true) {
        build(el, path ? path.concat(key) : [key]);
      }
    });

    stack.pop();
  }

  if (!utils.isObject(obj)) {
    throw new TypeError('data must be an object');
  }

  build(obj);

  return formData;
}

/**
 * It encodes a string by replacing all characters that are not in the unreserved set with
 * their percent-encoded equivalents
 *
 * @param {string} str - The string to encode.
 *
 * @returns {string} The encoded string.
 */
function encode$1(str) {
  const charMap = {
    '!': '%21',
    "'": '%27',
    '(': '%28',
    ')': '%29',
    '~': '%7E',
    '%20': '+',
    '%00': '\x00'
  };
  return encodeURIComponent(str).replace(/[!'()~]|%20|%00/g, function replacer(match) {
    return charMap[match];
  });
}

/**
 * It takes a params object and converts it to a FormData object
 *
 * @param {Object<string, any>} params - The parameters to be converted to a FormData object.
 * @param {Object<string, any>} options - The options object passed to the Axios constructor.
 *
 * @returns {void}
 */
function AxiosURLSearchParams(params, options) {
  this._pairs = [];

  params && toFormData(params, this, options);
}

const prototype = AxiosURLSearchParams.prototype;

prototype.append = function append(name, value) {
  this._pairs.push([name, value]);
};

prototype.toString = function toString(encoder) {
  const _encode = encoder ? function(value) {
    return encoder.call(this, value, encode$1);
  } : encode$1;

  return this._pairs.map(function each(pair) {
    return _encode(pair[0]) + '=' + _encode(pair[1]);
  }, '').join('&');
};

/**
 * It replaces all instances of the characters `:`, `$`, `,`, `+`, `[`, and `]` with their
 * URI encoded counterparts
 *
 * @param {string} val The value to be encoded.
 *
 * @returns {string} The encoded value.
 */
function encode(val) {
  return encodeURIComponent(val).
    replace(/%3A/gi, ':').
    replace(/%24/g, '$').
    replace(/%2C/gi, ',').
    replace(/%20/g, '+').
    replace(/%5B/gi, '[').
    replace(/%5D/gi, ']');
}

/**
 * Build a URL by appending params to the end
 *
 * @param {string} url The base of the url (e.g., http://www.google.com)
 * @param {object} [params] The params to be appended
 * @param {?object} options
 *
 * @returns {string} The formatted url
 */
function buildURL(url, params, options) {
  /*eslint no-param-reassign:0*/
  if (!params) {
    return url;
  }

  const hashmarkIndex = url.indexOf('#');

  if (hashmarkIndex !== -1) {
    url = url.slice(0, hashmarkIndex);
  }

  const _encode = options && options.encode || encode;

  const serializerParams = utils.isURLSearchParams(params) ?
    params.toString() :
    new AxiosURLSearchParams(params, options).toString(_encode);

  if (serializerParams) {
    url += (url.indexOf('?') === -1 ? '?' : '&') + serializerParams;
  }

  return url;
}

class InterceptorManager {
  constructor() {
    this.handlers = [];
  }

  /**
   * Add a new interceptor to the stack
   *
   * @param {Function} fulfilled The function to handle `then` for a `Promise`
   * @param {Function} rejected The function to handle `reject` for a `Promise`
   *
   * @return {Number} An ID used to remove interceptor later
   */
  use(fulfilled, rejected, options) {
    this.handlers.push({
      fulfilled,
      rejected,
      synchronous: options ? options.synchronous : false,
      runWhen: options ? options.runWhen : null
    });
    return this.handlers.length - 1;
  }

  /**
   * Remove an interceptor from the stack
   *
   * @param {Number} id The ID that was returned by `use`
   *
   * @returns {Boolean} `true` if the interceptor was removed, `false` otherwise
   */
  eject(id) {
    if (this.handlers[id]) {
      this.handlers[id] = null;
    }
  }

  /**
   * Clear all interceptors from the stack
   *
   * @returns {void}
   */
  clear() {
    if (this.handlers) {
      this.handlers = [];
    }
  }

  /**
   * Iterate over all the registered interceptors
   *
   * This method is particularly useful for skipping over any
   * interceptors that may have become `null` calling `eject`.
   *
   * @param {Function} fn The function to call for each interceptor
   *
   * @returns {void}
   */
  forEach(fn) {
    utils.forEach(this.handlers, function forEachHandler(h) {
      if (h !== null) {
        fn(h);
      }
    });
  }
}

const transitionalDefaults = {
  silentJSONParsing: true,
  forcedJSONParsing: true,
  clarifyTimeoutError: false
};

const URLSearchParams$1 = typeof URLSearchParams !== 'undefined' ? URLSearchParams : AxiosURLSearchParams;

const FormData$1 = FormData;

/**
 * Determine if we're running in a standard browser environment
 *
 * This allows axios to run in a web worker, and react-native.
 * Both environments support XMLHttpRequest, but not fully standard globals.
 *
 * web workers:
 *  typeof window -> undefined
 *  typeof document -> undefined
 *
 * react-native:
 *  navigator.product -> 'ReactNative'
 * nativescript
 *  navigator.product -> 'NativeScript' or 'NS'
 *
 * @returns {boolean}
 */
const isStandardBrowserEnv = (() => {
  let product;
  if (typeof navigator !== 'undefined' && (
    (product = navigator.product) === 'ReactNative' ||
    product === 'NativeScript' ||
    product === 'NS')
  ) {
    return false;
  }

  return typeof window !== 'undefined' && typeof document !== 'undefined';
})();

const platform = {
  isBrowser: true,
  classes: {
    URLSearchParams: URLSearchParams$1,
    FormData: FormData$1,
    Blob
  },
  isStandardBrowserEnv,
  protocols: ['http', 'https', 'file', 'blob', 'url', 'data']
};

function toURLEncodedForm(data, options) {
  return toFormData(data, new platform.classes.URLSearchParams(), Object.assign({
    visitor: function(value, key, path, helpers) {
      if (platform.isNode && utils.isBuffer(value)) {
        this.append(key, value.toString('base64'));
        return false;
      }

      return helpers.defaultVisitor.apply(this, arguments);
    }
  }, options));
}

/**
 * It takes a string like `foo[x][y][z]` and returns an array like `['foo', 'x', 'y', 'z']
 *
 * @param {string} name - The name of the property to get.
 *
 * @returns An array of strings.
 */
function parsePropPath(name) {
  // foo[x][y][z]
  // foo.x.y.z
  // foo-x-y-z
  // foo x y z
  return utils.matchAll(/\w+|\[(\w*)]/g, name).map(match => {
    return match[0] === '[]' ? '' : match[1] || match[0];
  });
}

/**
 * Convert an array to an object.
 *
 * @param {Array<any>} arr - The array to convert to an object.
 *
 * @returns An object with the same keys and values as the array.
 */
function arrayToObject(arr) {
  const obj = {};
  const keys = Object.keys(arr);
  let i;
  const len = keys.length;
  let key;
  for (i = 0; i < len; i++) {
    key = keys[i];
    obj[key] = arr[key];
  }
  return obj;
}

/**
 * It takes a FormData object and returns a JavaScript object
 *
 * @param {string} formData The FormData object to convert to JSON.
 *
 * @returns {Object<string, any> | null} The converted object.
 */
function formDataToJSON(formData) {
  function buildPath(path, value, target, index) {
    let name = path[index++];
    const isNumericKey = Number.isFinite(+name);
    const isLast = index >= path.length;
    name = !name && utils.isArray(target) ? target.length : name;

    if (isLast) {
      if (utils.hasOwnProp(target, name)) {
        target[name] = [target[name], value];
      } else {
        target[name] = value;
      }

      return !isNumericKey;
    }

    if (!target[name] || !utils.isObject(target[name])) {
      target[name] = [];
    }

    const result = buildPath(path, value, target[name], index);

    if (result && utils.isArray(target[name])) {
      target[name] = arrayToObject(target[name]);
    }

    return !isNumericKey;
  }

  if (utils.isFormData(formData) && utils.isFunction(formData.entries)) {
    const obj = {};

    utils.forEachEntry(formData, (name, value) => {
      buildPath(parsePropPath(name), value, obj, 0);
    });

    return obj;
  }

  return null;
}

/**
 * Resolve or reject a Promise based on response status.
 *
 * @param {Function} resolve A function that resolves the promise.
 * @param {Function} reject A function that rejects the promise.
 * @param {object} response The response.
 *
 * @returns {object} The response.
 */
function settle(resolve, reject, response) {
  const validateStatus = response.config.validateStatus;
  if (!response.status || !validateStatus || validateStatus(response.status)) {
    resolve(response);
  } else {
    reject(new AxiosError(
      'Request failed with status code ' + response.status,
      [AxiosError.ERR_BAD_REQUEST, AxiosError.ERR_BAD_RESPONSE][Math.floor(response.status / 100) - 4],
      response.config,
      response.request,
      response
    ));
  }
}

const cookies = platform.isStandardBrowserEnv ?

// Standard browser envs support document.cookie
  (function standardBrowserEnv() {
    return {
      write: function write(name, value, expires, path, domain, secure) {
        const cookie = [];
        cookie.push(name + '=' + encodeURIComponent(value));

        if (utils.isNumber(expires)) {
          cookie.push('expires=' + new Date(expires).toGMTString());
        }

        if (utils.isString(path)) {
          cookie.push('path=' + path);
        }

        if (utils.isString(domain)) {
          cookie.push('domain=' + domain);
        }

        if (secure === true) {
          cookie.push('secure');
        }

        document.cookie = cookie.join('; ');
      },

      read: function read(name) {
        const match = document.cookie.match(new RegExp('(^|;\\s*)(' + name + ')=([^;]*)'));
        return (match ? decodeURIComponent(match[3]) : null);
      },

      remove: function remove(name) {
        this.write(name, '', Date.now() - 86400000);
      }
    };
  })() :

// Non standard browser env (web workers, react-native) lack needed support.
  (function nonStandardBrowserEnv() {
    return {
      write: function write() {},
      read: function read() { return null; },
      remove: function remove() {}
    };
  })();

/**
 * Determines whether the specified URL is absolute
 *
 * @param {string} url The URL to test
 *
 * @returns {boolean} True if the specified URL is absolute, otherwise false
 */
function isAbsoluteURL(url) {
  // A URL is considered absolute if it begins with "<scheme>://" or "//" (protocol-relative URL).
  // RFC 3986 defines scheme name as a sequence of characters beginning with a letter and followed
  // by any combination of letters, digits, plus, period, or hyphen.
  return /^([a-z][a-z\d+\-.]*:)?\/\//i.test(url);
}

/**
 * Creates a new URL by combining the specified URLs
 *
 * @param {string} baseURL The base URL
 * @param {string} relativeURL The relative URL
 *
 * @returns {string} The combined URL
 */
function combineURLs(baseURL, relativeURL) {
  return relativeURL
    ? baseURL.replace(/\/+$/, '') + '/' + relativeURL.replace(/^\/+/, '')
    : baseURL;
}

/**
 * Creates a new URL by combining the baseURL with the requestedURL,
 * only when the requestedURL is not already an absolute URL.
 * If the requestURL is absolute, this function returns the requestedURL untouched.
 *
 * @param {string} baseURL The base URL
 * @param {string} requestedURL Absolute or relative URL to combine
 *
 * @returns {string} The combined full path
 */
function buildFullPath(baseURL, requestedURL) {
  if (baseURL && !isAbsoluteURL(requestedURL)) {
    return combineURLs(baseURL, requestedURL);
  }
  return requestedURL;
}

const isURLSameOrigin = platform.isStandardBrowserEnv ?

// Standard browser envs have full support of the APIs needed to test
// whether the request URL is of the same origin as current location.
  (function standardBrowserEnv() {
    const msie = /(msie|trident)/i.test(navigator.userAgent);
    const urlParsingNode = document.createElement('a');
    let originURL;

    /**
    * Parse a URL to discover it's components
    *
    * @param {String} url The URL to be parsed
    * @returns {Object}
    */
    function resolveURL(url) {
      let href = url;

      if (msie) {
        // IE needs attribute set twice to normalize properties
        urlParsingNode.setAttribute('href', href);
        href = urlParsingNode.href;
      }

      urlParsingNode.setAttribute('href', href);

      // urlParsingNode provides the UrlUtils interface - http://url.spec.whatwg.org/#urlutils
      return {
        href: urlParsingNode.href,
        protocol: urlParsingNode.protocol ? urlParsingNode.protocol.replace(/:$/, '') : '',
        host: urlParsingNode.host,
        search: urlParsingNode.search ? urlParsingNode.search.replace(/^\?/, '') : '',
        hash: urlParsingNode.hash ? urlParsingNode.hash.replace(/^#/, '') : '',
        hostname: urlParsingNode.hostname,
        port: urlParsingNode.port,
        pathname: (urlParsingNode.pathname.charAt(0) === '/') ?
          urlParsingNode.pathname :
          '/' + urlParsingNode.pathname
      };
    }

    originURL = resolveURL(window.location.href);

    /**
    * Determine if a URL shares the same origin as the current location
    *
    * @param {String} requestURL The URL to test
    * @returns {boolean} True if URL shares the same origin, otherwise false
    */
    return function isURLSameOrigin(requestURL) {
      const parsed = (utils.isString(requestURL)) ? resolveURL(requestURL) : requestURL;
      return (parsed.protocol === originURL.protocol &&
          parsed.host === originURL.host);
    };
  })() :

  // Non standard browser envs (web workers, react-native) lack needed support.
  (function nonStandardBrowserEnv() {
    return function isURLSameOrigin() {
      return true;
    };
  })();

/**
 * A `CanceledError` is an object that is thrown when an operation is canceled.
 *
 * @param {string=} message The message.
 * @param {Object=} config The config.
 * @param {Object=} request The request.
 *
 * @returns {CanceledError} The created error.
 */
function CanceledError(message, config, request) {
  // eslint-disable-next-line no-eq-null,eqeqeq
  AxiosError.call(this, message == null ? 'canceled' : message, AxiosError.ERR_CANCELED, config, request);
  this.name = 'CanceledError';
}

utils.inherits(CanceledError, AxiosError, {
  __CANCEL__: true
});

function parseProtocol(url) {
  const match = /^([-+\w]{1,25})(:?\/\/|:)/.exec(url);
  return match && match[1] || '';
}

// RawAxiosHeaders whose duplicates are ignored by node
// c.f. https://nodejs.org/api/http.html#http_message_headers
const ignoreDuplicateOf = utils.toObjectSet([
  'age', 'authorization', 'content-length', 'content-type', 'etag',
  'expires', 'from', 'host', 'if-modified-since', 'if-unmodified-since',
  'last-modified', 'location', 'max-forwards', 'proxy-authorization',
  'referer', 'retry-after', 'user-agent'
]);

/**
 * Parse headers into an object
 *
 * ```
 * Date: Wed, 27 Aug 2014 08:58:49 GMT
 * Content-Type: application/json
 * Connection: keep-alive
 * Transfer-Encoding: chunked
 * ```
 *
 * @param {String} rawHeaders Headers needing to be parsed
 *
 * @returns {Object} Headers parsed into an object
 */
const parseHeaders = rawHeaders => {
  const parsed = {};
  let key;
  let val;
  let i;

  rawHeaders && rawHeaders.split('\n').forEach(function parser(line) {
    i = line.indexOf(':');
    key = line.substring(0, i).trim().toLowerCase();
    val = line.substring(i + 1).trim();

    if (!key || (parsed[key] && ignoreDuplicateOf[key])) {
      return;
    }

    if (key === 'set-cookie') {
      if (parsed[key]) {
        parsed[key].push(val);
      } else {
        parsed[key] = [val];
      }
    } else {
      parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;
    }
  });

  return parsed;
};

const $internals = Symbol('internals');
const $defaults = Symbol('defaults');

function normalizeHeader(header) {
  return header && String(header).trim().toLowerCase();
}

function normalizeValue(value) {
  if (value === false || value == null) {
    return value;
  }

  return String(value);
}

function parseTokens(str) {
  const tokens = Object.create(null);
  const tokensRE = /([^\s,;=]+)\s*(?:=\s*([^,;]+))?/g;
  let match;

  while ((match = tokensRE.exec(str))) {
    tokens[match[1]] = match[2];
  }

  return tokens;
}

function matchHeaderValue(context, value, header, filter) {
  if (utils.isFunction(filter)) {
    return filter.call(this, value, header);
  }

  if (!utils.isString(value)) return;

  if (utils.isString(filter)) {
    return value.indexOf(filter) !== -1;
  }

  if (utils.isRegExp(filter)) {
    return filter.test(value);
  }
}

function formatHeader(header) {
  return header.trim()
    .toLowerCase().replace(/([a-z\d])(\w*)/g, (w, char, str) => {
      return char.toUpperCase() + str;
    });
}

function buildAccessors(obj, header) {
  const accessorName = utils.toCamelCase(' ' + header);

  ['get', 'set', 'has'].forEach(methodName => {
    Object.defineProperty(obj, methodName + accessorName, {
      value: function(arg1, arg2, arg3) {
        return this[methodName].call(this, header, arg1, arg2, arg3);
      },
      configurable: true
    });
  });
}

function findKey(obj, key) {
  key = key.toLowerCase();
  const keys = Object.keys(obj);
  let i = keys.length;
  let _key;
  while (i-- > 0) {
    _key = keys[i];
    if (key === _key.toLowerCase()) {
      return _key;
    }
  }
  return null;
}

function AxiosHeaders(headers, defaults) {
  headers && this.set(headers);
  this[$defaults] = defaults || null;
}

Object.assign(AxiosHeaders.prototype, {
  set: function(header, valueOrRewrite, rewrite) {
    const self = this;

    function setHeader(_value, _header, _rewrite) {
      const lHeader = normalizeHeader(_header);

      if (!lHeader) {
        throw new Error('header name must be a non-empty string');
      }

      const key = findKey(self, lHeader);

      if (key && _rewrite !== true && (self[key] === false || _rewrite === false)) {
        return;
      }

      if (utils.isArray(_value)) {
        _value = _value.map(normalizeValue);
      } else {
        _value = normalizeValue(_value);
      }

      self[key || _header] = _value;
    }

    if (utils.isPlainObject(header)) {
      utils.forEach(header, (_value, _header) => {
        setHeader(_value, _header, valueOrRewrite);
      });
    } else {
      setHeader(valueOrRewrite, header, rewrite);
    }

    return this;
  },

  get: function(header, parser) {
    header = normalizeHeader(header);

    if (!header) return undefined;

    const key = findKey(this, header);

    if (key) {
      const value = this[key];

      if (!parser) {
        return value;
      }

      if (parser === true) {
        return parseTokens(value);
      }

      if (utils.isFunction(parser)) {
        return parser.call(this, value, key);
      }

      if (utils.isRegExp(parser)) {
        return parser.exec(value);
      }

      throw new TypeError('parser must be boolean|regexp|function');
    }
  },

  has: function(header, matcher) {
    header = normalizeHeader(header);

    if (header) {
      const key = findKey(this, header);

      return !!(key && (!matcher || matchHeaderValue(this, this[key], key, matcher)));
    }

    return false;
  },

  delete: function(header, matcher) {
    const self = this;
    let deleted = false;

    function deleteHeader(_header) {
      _header = normalizeHeader(_header);

      if (_header) {
        const key = findKey(self, _header);

        if (key && (!matcher || matchHeaderValue(self, self[key], key, matcher))) {
          delete self[key];

          deleted = true;
        }
      }
    }

    if (utils.isArray(header)) {
      header.forEach(deleteHeader);
    } else {
      deleteHeader(header);
    }

    return deleted;
  },

  clear: function() {
    return Object.keys(this).forEach(this.delete.bind(this));
  },

  normalize: function(format) {
    const self = this;
    const headers = {};

    utils.forEach(this, (value, header) => {
      const key = findKey(headers, header);

      if (key) {
        self[key] = normalizeValue(value);
        delete self[header];
        return;
      }

      const normalized = format ? formatHeader(header) : String(header).trim();

      if (normalized !== header) {
        delete self[header];
      }

      self[normalized] = normalizeValue(value);

      headers[normalized] = true;
    });

    return this;
  },

  toJSON: function() {
    const obj = Object.create(null);

    utils.forEach(Object.assign({}, this[$defaults] || null, this),
      (value, header) => {
        if (value == null || value === false) return;
        obj[header] = utils.isArray(value) ? value.join(', ') : value;
      });

    return obj;
  }
});

Object.assign(AxiosHeaders, {
  from: function(thing) {
    if (utils.isString(thing)) {
      return new this(parseHeaders(thing));
    }
    return thing instanceof this ? thing : new this(thing);
  },

  accessor: function(header) {
    const internals = this[$internals] = (this[$internals] = {
      accessors: {}
    });

    const accessors = internals.accessors;
    const prototype = this.prototype;

    function defineAccessor(_header) {
      const lHeader = normalizeHeader(_header);

      if (!accessors[lHeader]) {
        buildAccessors(prototype, _header);
        accessors[lHeader] = true;
      }
    }

    utils.isArray(header) ? header.forEach(defineAccessor) : defineAccessor(header);

    return this;
  }
});

AxiosHeaders.accessor(['Content-Type', 'Content-Length', 'Accept', 'Accept-Encoding', 'User-Agent']);

utils.freezeMethods(AxiosHeaders.prototype);
utils.freezeMethods(AxiosHeaders);

/**
 * Calculate data maxRate
 * @param {Number} [samplesCount= 10]
 * @param {Number} [min= 1000]
 * @returns {Function}
 */
function speedometer(samplesCount, min) {
  samplesCount = samplesCount || 10;
  const bytes = new Array(samplesCount);
  const timestamps = new Array(samplesCount);
  let head = 0;
  let tail = 0;
  let firstSampleTS;

  min = min !== undefined ? min : 1000;

  return function push(chunkLength) {
    const now = Date.now();

    const startedAt = timestamps[tail];

    if (!firstSampleTS) {
      firstSampleTS = now;
    }

    bytes[head] = chunkLength;
    timestamps[head] = now;

    let i = tail;
    let bytesCount = 0;

    while (i !== head) {
      bytesCount += bytes[i++];
      i = i % samplesCount;
    }

    head = (head + 1) % samplesCount;

    if (head === tail) {
      tail = (tail + 1) % samplesCount;
    }

    if (now - firstSampleTS < min) {
      return;
    }

    const passed = startedAt && now - startedAt;

    return  passed ? Math.round(bytesCount * 1000 / passed) : undefined;
  };
}

function progressEventReducer(listener, isDownloadStream) {
  let bytesNotified = 0;
  const _speedometer = speedometer(50, 250);

  return e => {
    const loaded = e.loaded;
    const total = e.lengthComputable ? e.total : undefined;
    const progressBytes = loaded - bytesNotified;
    const rate = _speedometer(progressBytes);
    const inRange = loaded <= total;

    bytesNotified = loaded;

    const data = {
      loaded,
      total,
      progress: total ? (loaded / total) : undefined,
      bytes: progressBytes,
      rate: rate ? rate : undefined,
      estimated: rate && total && inRange ? (total - loaded) / rate : undefined
    };

    data[isDownloadStream ? 'download' : 'upload'] = true;

    listener(data);
  };
}

function xhrAdapter(config) {
  return new Promise(function dispatchXhrRequest(resolve, reject) {
    let requestData = config.data;
    const requestHeaders = AxiosHeaders.from(config.headers).normalize();
    const responseType = config.responseType;
    let onCanceled;
    function done() {
      if (config.cancelToken) {
        config.cancelToken.unsubscribe(onCanceled);
      }

      if (config.signal) {
        config.signal.removeEventListener('abort', onCanceled);
      }
    }

    if (utils.isFormData(requestData) && platform.isStandardBrowserEnv) {
      requestHeaders.setContentType(false); // Let the browser set it
    }

    let request = new XMLHttpRequest();

    // HTTP basic authentication
    if (config.auth) {
      const username = config.auth.username || '';
      const password = config.auth.password ? unescape(encodeURIComponent(config.auth.password)) : '';
      requestHeaders.set('Authorization', 'Basic ' + btoa(username + ':' + password));
    }

    const fullPath = buildFullPath(config.baseURL, config.url);

    request.open(config.method.toUpperCase(), buildURL(fullPath, config.params, config.paramsSerializer), true);

    // Set the request timeout in MS
    request.timeout = config.timeout;

    function onloadend() {
      if (!request) {
        return;
      }
      // Prepare the response
      const responseHeaders = AxiosHeaders.from(
        'getAllResponseHeaders' in request && request.getAllResponseHeaders()
      );
      const responseData = !responseType || responseType === 'text' ||  responseType === 'json' ?
        request.responseText : request.response;
      const response = {
        data: responseData,
        status: request.status,
        statusText: request.statusText,
        headers: responseHeaders,
        config,
        request
      };

      settle(function _resolve(value) {
        resolve(value);
        done();
      }, function _reject(err) {
        reject(err);
        done();
      }, response);

      // Clean up request
      request = null;
    }

    if ('onloadend' in request) {
      // Use onloadend if available
      request.onloadend = onloadend;
    } else {
      // Listen for ready state to emulate onloadend
      request.onreadystatechange = function handleLoad() {
        if (!request || request.readyState !== 4) {
          return;
        }

        // The request errored out and we didn't get a response, this will be
        // handled by onerror instead
        // With one exception: request that using file: protocol, most browsers
        // will return status as 0 even though it's a successful request
        if (request.status === 0 && !(request.responseURL && request.responseURL.indexOf('file:') === 0)) {
          return;
        }
        // readystate handler is calling before onerror or ontimeout handlers,
        // so we should call onloadend on the next 'tick'
        setTimeout(onloadend);
      };
    }

    // Handle browser request cancellation (as opposed to a manual cancellation)
    request.onabort = function handleAbort() {
      if (!request) {
        return;
      }

      reject(new AxiosError('Request aborted', AxiosError.ECONNABORTED, config, request));

      // Clean up request
      request = null;
    };

    // Handle low level network errors
    request.onerror = function handleError() {
      // Real errors are hidden from us by the browser
      // onerror should only fire if it's a network error
      reject(new AxiosError('Network Error', AxiosError.ERR_NETWORK, config, request));

      // Clean up request
      request = null;
    };

    // Handle timeout
    request.ontimeout = function handleTimeout() {
      let timeoutErrorMessage = config.timeout ? 'timeout of ' + config.timeout + 'ms exceeded' : 'timeout exceeded';
      const transitional = config.transitional || transitionalDefaults;
      if (config.timeoutErrorMessage) {
        timeoutErrorMessage = config.timeoutErrorMessage;
      }
      reject(new AxiosError(
        timeoutErrorMessage,
        transitional.clarifyTimeoutError ? AxiosError.ETIMEDOUT : AxiosError.ECONNABORTED,
        config,
        request));

      // Clean up request
      request = null;
    };

    // Add xsrf header
    // This is only done if running in a standard browser environment.
    // Specifically not if we're in a web worker, or react-native.
    if (platform.isStandardBrowserEnv) {
      // Add xsrf header
      const xsrfValue = (config.withCredentials || isURLSameOrigin(fullPath))
        && config.xsrfCookieName && cookies.read(config.xsrfCookieName);

      if (xsrfValue) {
        requestHeaders.set(config.xsrfHeaderName, xsrfValue);
      }
    }

    // Remove Content-Type if data is undefined
    requestData === undefined && requestHeaders.setContentType(null);

    // Add headers to the request
    if ('setRequestHeader' in request) {
      utils.forEach(requestHeaders.toJSON(), function setRequestHeader(val, key) {
        request.setRequestHeader(key, val);
      });
    }

    // Add withCredentials to request if needed
    if (!utils.isUndefined(config.withCredentials)) {
      request.withCredentials = !!config.withCredentials;
    }

    // Add responseType to request if needed
    if (responseType && responseType !== 'json') {
      request.responseType = config.responseType;
    }

    // Handle progress if needed
    if (typeof config.onDownloadProgress === 'function') {
      request.addEventListener('progress', progressEventReducer(config.onDownloadProgress, true));
    }

    // Not all browsers support upload events
    if (typeof config.onUploadProgress === 'function' && request.upload) {
      request.upload.addEventListener('progress', progressEventReducer(config.onUploadProgress));
    }

    if (config.cancelToken || config.signal) {
      // Handle cancellation
      // eslint-disable-next-line func-names
      onCanceled = cancel => {
        if (!request) {
          return;
        }
        reject(!cancel || cancel.type ? new CanceledError(null, config, request) : cancel);
        request.abort();
        request = null;
      };

      config.cancelToken && config.cancelToken.subscribe(onCanceled);
      if (config.signal) {
        config.signal.aborted ? onCanceled() : config.signal.addEventListener('abort', onCanceled);
      }
    }

    const protocol = parseProtocol(fullPath);

    if (protocol && platform.protocols.indexOf(protocol) === -1) {
      reject(new AxiosError('Unsupported protocol ' + protocol + ':', AxiosError.ERR_BAD_REQUEST, config));
      return;
    }


    // Send the request
    request.send(requestData || null);
  });
}

const adapters = {
  http: xhrAdapter,
  xhr: xhrAdapter
};

const adapters$1 = {
  getAdapter: (nameOrAdapter) => {
    if(utils.isString(nameOrAdapter)){
      const adapter = adapters[nameOrAdapter];

      if (!nameOrAdapter) {
        throw Error(
          utils.hasOwnProp(nameOrAdapter) ?
            `Adapter '${nameOrAdapter}' is not available in the build` :
            `Can not resolve adapter '${nameOrAdapter}'`
        );
      }

      return adapter
    }

    if (!utils.isFunction(nameOrAdapter)) {
      throw new TypeError('adapter is not a function');
    }

    return nameOrAdapter;
  },
  adapters
};

const DEFAULT_CONTENT_TYPE = {
  'Content-Type': 'application/x-www-form-urlencoded'
};

/**
 * If the browser has an XMLHttpRequest object, use the XHR adapter, otherwise use the HTTP
 * adapter
 *
 * @returns {Function}
 */
function getDefaultAdapter() {
  let adapter;
  if (typeof XMLHttpRequest !== 'undefined') {
    // For browsers use XHR adapter
    adapter = adapters$1.getAdapter('xhr');
  } else if (typeof process !== 'undefined' && utils.kindOf(process) === 'process') {
    // For node use HTTP adapter
    adapter = adapters$1.getAdapter('http');
  }
  return adapter;
}

/**
 * It takes a string, tries to parse it, and if it fails, it returns the stringified version
 * of the input
 *
 * @param {any} rawValue - The value to be stringified.
 * @param {Function} parser - A function that parses a string into a JavaScript object.
 * @param {Function} encoder - A function that takes a value and returns a string.
 *
 * @returns {string} A stringified version of the rawValue.
 */
function stringifySafely(rawValue, parser, encoder) {
  if (utils.isString(rawValue)) {
    try {
      (parser || JSON.parse)(rawValue);
      return utils.trim(rawValue);
    } catch (e) {
      if (e.name !== 'SyntaxError') {
        throw e;
      }
    }
  }

  return (encoder || JSON.stringify)(rawValue);
}

const defaults = {

  transitional: transitionalDefaults,

  adapter: getDefaultAdapter(),

  transformRequest: [function transformRequest(data, headers) {
    const contentType = headers.getContentType() || '';
    const hasJSONContentType = contentType.indexOf('application/json') > -1;
    const isObjectPayload = utils.isObject(data);

    if (isObjectPayload && utils.isHTMLForm(data)) {
      data = new FormData(data);
    }

    const isFormData = utils.isFormData(data);

    if (isFormData) {
      if (!hasJSONContentType) {
        return data;
      }
      return hasJSONContentType ? JSON.stringify(formDataToJSON(data)) : data;
    }

    if (utils.isArrayBuffer(data) ||
      utils.isBuffer(data) ||
      utils.isStream(data) ||
      utils.isFile(data) ||
      utils.isBlob(data)
    ) {
      return data;
    }
    if (utils.isArrayBufferView(data)) {
      return data.buffer;
    }
    if (utils.isURLSearchParams(data)) {
      headers.setContentType('application/x-www-form-urlencoded;charset=utf-8', false);
      return data.toString();
    }

    let isFileList;

    if (isObjectPayload) {
      if (contentType.indexOf('application/x-www-form-urlencoded') > -1) {
        return toURLEncodedForm(data, this.formSerializer).toString();
      }

      if ((isFileList = utils.isFileList(data)) || contentType.indexOf('multipart/form-data') > -1) {
        const _FormData = this.env && this.env.FormData;

        return toFormData(
          isFileList ? {'files[]': data} : data,
          _FormData && new _FormData(),
          this.formSerializer
        );
      }
    }

    if (isObjectPayload || hasJSONContentType ) {
      headers.setContentType('application/json', false);
      return stringifySafely(data);
    }

    return data;
  }],

  transformResponse: [function transformResponse(data) {
    const transitional = this.transitional || defaults.transitional;
    const forcedJSONParsing = transitional && transitional.forcedJSONParsing;
    const JSONRequested = this.responseType === 'json';

    if (data && utils.isString(data) && ((forcedJSONParsing && !this.responseType) || JSONRequested)) {
      const silentJSONParsing = transitional && transitional.silentJSONParsing;
      const strictJSONParsing = !silentJSONParsing && JSONRequested;

      try {
        return JSON.parse(data);
      } catch (e) {
        if (strictJSONParsing) {
          if (e.name === 'SyntaxError') {
            throw AxiosError.from(e, AxiosError.ERR_BAD_RESPONSE, this, null, this.response);
          }
          throw e;
        }
      }
    }

    return data;
  }],

  /**
   * A timeout in milliseconds to abort a request. If set to 0 (default) a
   * timeout is not created.
   */
  timeout: 0,

  xsrfCookieName: 'XSRF-TOKEN',
  xsrfHeaderName: 'X-XSRF-TOKEN',

  maxContentLength: -1,
  maxBodyLength: -1,

  env: {
    FormData: platform.classes.FormData,
    Blob: platform.classes.Blob
  },

  validateStatus: function validateStatus(status) {
    return status >= 200 && status < 300;
  },

  headers: {
    common: {
      'Accept': 'application/json, text/plain, */*'
    }
  }
};

utils.forEach(['delete', 'get', 'head'], function forEachMethodNoData(method) {
  defaults.headers[method] = {};
});

utils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {
  defaults.headers[method] = utils.merge(DEFAULT_CONTENT_TYPE);
});

/**
 * Transform the data for a request or a response
 *
 * @param {Array|Function} fns A single function or Array of functions
 * @param {?Object} response The response object
 *
 * @returns {*} The resulting transformed data
 */
function transformData(fns, response) {
  const config = this || defaults;
  const context = response || config;
  const headers = AxiosHeaders.from(context.headers);
  let data = context.data;

  utils.forEach(fns, function transform(fn) {
    data = fn.call(config, data, headers.normalize(), response ? response.status : undefined);
  });

  headers.normalize();

  return data;
}

function isCancel(value) {
  return !!(value && value.__CANCEL__);
}

/**
 * Throws a `CanceledError` if cancellation has been requested.
 *
 * @param {Object} config The config that is to be used for the request
 *
 * @returns {void}
 */
function throwIfCancellationRequested(config) {
  if (config.cancelToken) {
    config.cancelToken.throwIfRequested();
  }

  if (config.signal && config.signal.aborted) {
    throw new CanceledError();
  }
}

/**
 * Dispatch a request to the server using the configured adapter.
 *
 * @param {object} config The config that is to be used for the request
 *
 * @returns {Promise} The Promise to be fulfilled
 */
function dispatchRequest(config) {
  throwIfCancellationRequested(config);

  config.headers = AxiosHeaders.from(config.headers);

  // Transform request data
  config.data = transformData.call(
    config,
    config.transformRequest
  );

  const adapter = config.adapter || defaults.adapter;

  return adapter(config).then(function onAdapterResolution(response) {
    throwIfCancellationRequested(config);

    // Transform response data
    response.data = transformData.call(
      config,
      config.transformResponse,
      response
    );

    response.headers = AxiosHeaders.from(response.headers);

    return response;
  }, function onAdapterRejection(reason) {
    if (!isCancel(reason)) {
      throwIfCancellationRequested(config);

      // Transform response data
      if (reason && reason.response) {
        reason.response.data = transformData.call(
          config,
          config.transformResponse,
          reason.response
        );
        reason.response.headers = AxiosHeaders.from(reason.response.headers);
      }
    }

    return Promise.reject(reason);
  });
}

/**
 * Config-specific merge-function which creates a new config-object
 * by merging two configuration objects together.
 *
 * @param {Object} config1
 * @param {Object} config2
 *
 * @returns {Object} New object resulting from merging config2 to config1
 */
function mergeConfig(config1, config2) {
  // eslint-disable-next-line no-param-reassign
  config2 = config2 || {};
  const config = {};

  function getMergedValue(target, source) {
    if (utils.isPlainObject(target) && utils.isPlainObject(source)) {
      return utils.merge(target, source);
    } else if (utils.isPlainObject(source)) {
      return utils.merge({}, source);
    } else if (utils.isArray(source)) {
      return source.slice();
    }
    return source;
  }

  // eslint-disable-next-line consistent-return
  function mergeDeepProperties(prop) {
    if (!utils.isUndefined(config2[prop])) {
      return getMergedValue(config1[prop], config2[prop]);
    } else if (!utils.isUndefined(config1[prop])) {
      return getMergedValue(undefined, config1[prop]);
    }
  }

  // eslint-disable-next-line consistent-return
  function valueFromConfig2(prop) {
    if (!utils.isUndefined(config2[prop])) {
      return getMergedValue(undefined, config2[prop]);
    }
  }

  // eslint-disable-next-line consistent-return
  function defaultToConfig2(prop) {
    if (!utils.isUndefined(config2[prop])) {
      return getMergedValue(undefined, config2[prop]);
    } else if (!utils.isUndefined(config1[prop])) {
      return getMergedValue(undefined, config1[prop]);
    }
  }

  // eslint-disable-next-line consistent-return
  function mergeDirectKeys(prop) {
    if (prop in config2) {
      return getMergedValue(config1[prop], config2[prop]);
    } else if (prop in config1) {
      return getMergedValue(undefined, config1[prop]);
    }
  }

  const mergeMap = {
    'url': valueFromConfig2,
    'method': valueFromConfig2,
    'data': valueFromConfig2,
    'baseURL': defaultToConfig2,
    'transformRequest': defaultToConfig2,
    'transformResponse': defaultToConfig2,
    'paramsSerializer': defaultToConfig2,
    'timeout': defaultToConfig2,
    'timeoutMessage': defaultToConfig2,
    'withCredentials': defaultToConfig2,
    'adapter': defaultToConfig2,
    'responseType': defaultToConfig2,
    'xsrfCookieName': defaultToConfig2,
    'xsrfHeaderName': defaultToConfig2,
    'onUploadProgress': defaultToConfig2,
    'onDownloadProgress': defaultToConfig2,
    'decompress': defaultToConfig2,
    'maxContentLength': defaultToConfig2,
    'maxBodyLength': defaultToConfig2,
    'beforeRedirect': defaultToConfig2,
    'transport': defaultToConfig2,
    'httpAgent': defaultToConfig2,
    'httpsAgent': defaultToConfig2,
    'cancelToken': defaultToConfig2,
    'socketPath': defaultToConfig2,
    'responseEncoding': defaultToConfig2,
    'validateStatus': mergeDirectKeys
  };

  utils.forEach(Object.keys(config1).concat(Object.keys(config2)), function computeConfigValue(prop) {
    const merge = mergeMap[prop] || mergeDeepProperties;
    const configValue = merge(prop);
    (utils.isUndefined(configValue) && merge !== mergeDirectKeys) || (config[prop] = configValue);
  });

  return config;
}

const VERSION = "1.1.2";

const validators$1 = {};

// eslint-disable-next-line func-names
['object', 'boolean', 'number', 'function', 'string', 'symbol'].forEach((type, i) => {
  validators$1[type] = function validator(thing) {
    return typeof thing === type || 'a' + (i < 1 ? 'n ' : ' ') + type;
  };
});

const deprecatedWarnings = {};

/**
 * Transitional option validator
 *
 * @param {function|boolean?} validator - set to false if the transitional option has been removed
 * @param {string?} version - deprecated version / removed since version
 * @param {string?} message - some message with additional info
 *
 * @returns {function}
 */
validators$1.transitional = function transitional(validator, version, message) {
  function formatMessage(opt, desc) {
    return '[Axios v' + VERSION + '] Transitional option \'' + opt + '\'' + desc + (message ? '. ' + message : '');
  }

  // eslint-disable-next-line func-names
  return (value, opt, opts) => {
    if (validator === false) {
      throw new AxiosError(
        formatMessage(opt, ' has been removed' + (version ? ' in ' + version : '')),
        AxiosError.ERR_DEPRECATED
      );
    }

    if (version && !deprecatedWarnings[opt]) {
      deprecatedWarnings[opt] = true;
      // eslint-disable-next-line no-console
      console.warn(
        formatMessage(
          opt,
          ' has been deprecated since v' + version + ' and will be removed in the near future'
        )
      );
    }

    return validator ? validator(value, opt, opts) : true;
  };
};

/**
 * Assert object's properties type
 *
 * @param {object} options
 * @param {object} schema
 * @param {boolean?} allowUnknown
 *
 * @returns {object}
 */

function assertOptions(options, schema, allowUnknown) {
  if (typeof options !== 'object') {
    throw new AxiosError('options must be an object', AxiosError.ERR_BAD_OPTION_VALUE);
  }
  const keys = Object.keys(options);
  let i = keys.length;
  while (i-- > 0) {
    const opt = keys[i];
    const validator = schema[opt];
    if (validator) {
      const value = options[opt];
      const result = value === undefined || validator(value, opt, options);
      if (result !== true) {
        throw new AxiosError('option ' + opt + ' must be ' + result, AxiosError.ERR_BAD_OPTION_VALUE);
      }
      continue;
    }
    if (allowUnknown !== true) {
      throw new AxiosError('Unknown option ' + opt, AxiosError.ERR_BAD_OPTION);
    }
  }
}

const validator = {
  assertOptions,
  validators: validators$1
};

const validators = validator.validators;

/**
 * Create a new instance of Axios
 *
 * @param {Object} instanceConfig The default config for the instance
 *
 * @return {Axios} A new instance of Axios
 */
class Axios {
  constructor(instanceConfig) {
    this.defaults = instanceConfig;
    this.interceptors = {
      request: new InterceptorManager(),
      response: new InterceptorManager()
    };
  }

  /**
   * Dispatch a request
   *
   * @param {String|Object} configOrUrl The config specific for this request (merged with this.defaults)
   * @param {?Object} config
   *
   * @returns {Promise} The Promise to be fulfilled
   */
  request(configOrUrl, config) {
    /*eslint no-param-reassign:0*/
    // Allow for axios('example/url'[, config]) a la fetch API
    if (typeof configOrUrl === 'string') {
      config = config || {};
      config.url = configOrUrl;
    } else {
      config = configOrUrl || {};
    }

    config = mergeConfig(this.defaults, config);

    const transitional = config.transitional;

    if (transitional !== undefined) {
      validator.assertOptions(transitional, {
        silentJSONParsing: validators.transitional(validators.boolean),
        forcedJSONParsing: validators.transitional(validators.boolean),
        clarifyTimeoutError: validators.transitional(validators.boolean)
      }, false);
    }

    // Set config.method
    config.method = (config.method || this.defaults.method || 'get').toLowerCase();

    // Flatten headers
    const defaultHeaders = config.headers && utils.merge(
      config.headers.common,
      config.headers[config.method]
    );

    defaultHeaders && utils.forEach(
      ['delete', 'get', 'head', 'post', 'put', 'patch', 'common'],
      function cleanHeaderConfig(method) {
        delete config.headers[method];
      }
    );

    config.headers = new AxiosHeaders(config.headers, defaultHeaders);

    // filter out skipped interceptors
    const requestInterceptorChain = [];
    let synchronousRequestInterceptors = true;
    this.interceptors.request.forEach(function unshiftRequestInterceptors(interceptor) {
      if (typeof interceptor.runWhen === 'function' && interceptor.runWhen(config) === false) {
        return;
      }

      synchronousRequestInterceptors = synchronousRequestInterceptors && interceptor.synchronous;

      requestInterceptorChain.unshift(interceptor.fulfilled, interceptor.rejected);
    });

    const responseInterceptorChain = [];
    this.interceptors.response.forEach(function pushResponseInterceptors(interceptor) {
      responseInterceptorChain.push(interceptor.fulfilled, interceptor.rejected);
    });

    let promise;
    let i = 0;
    let len;

    if (!synchronousRequestInterceptors) {
      const chain = [dispatchRequest.bind(this), undefined];
      chain.unshift.apply(chain, requestInterceptorChain);
      chain.push.apply(chain, responseInterceptorChain);
      len = chain.length;

      promise = Promise.resolve(config);

      while (i < len) {
        promise = promise.then(chain[i++], chain[i++]);
      }

      return promise;
    }

    len = requestInterceptorChain.length;

    let newConfig = config;

    i = 0;

    while (i < len) {
      const onFulfilled = requestInterceptorChain[i++];
      const onRejected = requestInterceptorChain[i++];
      try {
        newConfig = onFulfilled(newConfig);
      } catch (error) {
        onRejected.call(this, error);
        break;
      }
    }

    try {
      promise = dispatchRequest.call(this, newConfig);
    } catch (error) {
      return Promise.reject(error);
    }

    i = 0;
    len = responseInterceptorChain.length;

    while (i < len) {
      promise = promise.then(responseInterceptorChain[i++], responseInterceptorChain[i++]);
    }

    return promise;
  }

  getUri(config) {
    config = mergeConfig(this.defaults, config);
    const fullPath = buildFullPath(config.baseURL, config.url);
    return buildURL(fullPath, config.params, config.paramsSerializer);
  }
}

// Provide aliases for supported request methods
utils.forEach(['delete', 'get', 'head', 'options'], function forEachMethodNoData(method) {
  /*eslint func-names:0*/
  Axios.prototype[method] = function(url, config) {
    return this.request(mergeConfig(config || {}, {
      method,
      url,
      data: (config || {}).data
    }));
  };
});

utils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {
  /*eslint func-names:0*/

  function generateHTTPMethod(isForm) {
    return function httpMethod(url, data, config) {
      return this.request(mergeConfig(config || {}, {
        method,
        headers: isForm ? {
          'Content-Type': 'multipart/form-data'
        } : {},
        url,
        data
      }));
    };
  }

  Axios.prototype[method] = generateHTTPMethod();

  Axios.prototype[method + 'Form'] = generateHTTPMethod(true);
});

/**
 * A `CancelToken` is an object that can be used to request cancellation of an operation.
 *
 * @param {Function} executor The executor function.
 *
 * @returns {CancelToken}
 */
class CancelToken {
  constructor(executor) {
    if (typeof executor !== 'function') {
      throw new TypeError('executor must be a function.');
    }

    let resolvePromise;

    this.promise = new Promise(function promiseExecutor(resolve) {
      resolvePromise = resolve;
    });

    const token = this;

    // eslint-disable-next-line func-names
    this.promise.then(cancel => {
      if (!token._listeners) return;

      let i = token._listeners.length;

      while (i-- > 0) {
        token._listeners[i](cancel);
      }
      token._listeners = null;
    });

    // eslint-disable-next-line func-names
    this.promise.then = onfulfilled => {
      let _resolve;
      // eslint-disable-next-line func-names
      const promise = new Promise(resolve => {
        token.subscribe(resolve);
        _resolve = resolve;
      }).then(onfulfilled);

      promise.cancel = function reject() {
        token.unsubscribe(_resolve);
      };

      return promise;
    };

    executor(function cancel(message, config, request) {
      if (token.reason) {
        // Cancellation has already been requested
        return;
      }

      token.reason = new CanceledError(message, config, request);
      resolvePromise(token.reason);
    });
  }

  /**
   * Throws a `CanceledError` if cancellation has been requested.
   */
  throwIfRequested() {
    if (this.reason) {
      throw this.reason;
    }
  }

  /**
   * Subscribe to the cancel signal
   */

  subscribe(listener) {
    if (this.reason) {
      listener(this.reason);
      return;
    }

    if (this._listeners) {
      this._listeners.push(listener);
    } else {
      this._listeners = [listener];
    }
  }

  /**
   * Unsubscribe from the cancel signal
   */

  unsubscribe(listener) {
    if (!this._listeners) {
      return;
    }
    const index = this._listeners.indexOf(listener);
    if (index !== -1) {
      this._listeners.splice(index, 1);
    }
  }

  /**
   * Returns an object that contains a new `CancelToken` and a function that, when called,
   * cancels the `CancelToken`.
   */
  static source() {
    let cancel;
    const token = new CancelToken(function executor(c) {
      cancel = c;
    });
    return {
      token,
      cancel
    };
  }
}

/**
 * Syntactic sugar for invoking a function and expanding an array for arguments.
 *
 * Common use case would be to use `Function.prototype.apply`.
 *
 *  ```js
 *  function f(x, y, z) {}
 *  var args = [1, 2, 3];
 *  f.apply(null, args);
 *  ```
 *
 * With `spread` this example can be re-written.
 *
 *  ```js
 *  spread(function(x, y, z) {})([1, 2, 3]);
 *  ```
 *
 * @param {Function} callback
 *
 * @returns {Function}
 */
function spread(callback) {
  return function wrap(arr) {
    return callback.apply(null, arr);
  };
}

/**
 * Determines whether the payload is an error thrown by Axios
 *
 * @param {*} payload The value to test
 *
 * @returns {boolean} True if the payload is an error thrown by Axios, otherwise false
 */
function isAxiosError(payload) {
  return utils.isObject(payload) && (payload.isAxiosError === true);
}

/**
 * Create an instance of Axios
 *
 * @param {Object} defaultConfig The default config for the instance
 *
 * @returns {Axios} A new instance of Axios
 */
function createInstance(defaultConfig) {
  const context = new Axios(defaultConfig);
  const instance = bind(Axios.prototype.request, context);

  // Copy axios.prototype to instance
  utils.extend(instance, Axios.prototype, context, {allOwnKeys: true});

  // Copy context to instance
  utils.extend(instance, context, null, {allOwnKeys: true});

  // Factory for creating new instances
  instance.create = function create(instanceConfig) {
    return createInstance(mergeConfig(defaultConfig, instanceConfig));
  };

  return instance;
}

// Create the default instance to be exported
const axios = createInstance(defaults);

// Expose Axios class to allow class inheritance
axios.Axios = Axios;

// Expose Cancel & CancelToken
axios.CanceledError = CanceledError;
axios.CancelToken = CancelToken;
axios.isCancel = isCancel;
axios.VERSION = VERSION;
axios.toFormData = toFormData;

// Expose AxiosError class
axios.AxiosError = AxiosError;

// alias for CanceledError for backward compatibility
axios.Cancel = axios.CanceledError;

// Expose all/spread
axios.all = function all(promises) {
  return Promise.all(promises);
};

axios.spread = spread;

// Expose isAxiosError
axios.isAxiosError = isAxiosError;

axios.formToJSON = thing => {
  return formDataToJSON(utils.isHTMLForm(thing) ? new FormData(thing) : thing);
};

export { axios as default };
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