Function resolveConfig

lib/helpers/resolveConfig.js:39–117

(config)

  );

function resolveConfig(config) {
  const newConfig = mergeConfig({}, config);

  // Read only own properties to prevent prototype pollution gadgets
  // (e.g. Object.prototype.baseURL = 'https://evil.com').
  const own = (key) => (utils.hasOwnProp(newConfig, key) ? newConfig[key] : undefined);

  const data = own('data');
  let withXSRFToken = own('withXSRFToken');
  const xsrfHeaderName = own('xsrfHeaderName');
  const xsrfCookieName = own('xsrfCookieName');
  let headers = own('headers');
  const auth = own('auth');
  const baseURL = own('baseURL');
  const allowAbsoluteUrls = own('allowAbsoluteUrls');
  const url = own('url');

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

  newConfig.url = buildURL(
    buildFullPath(baseURL, url, allowAbsoluteUrls, newConfig),
    own('params'),
    own('paramsSerializer')
  );

  // HTTP basic authentication
  if (auth) {
    const username = utils.getSafeProp(auth, 'username') || '';
    const password = utils.getSafeProp(auth, 'password') || '';

    try {
      headers.set(
        'Authorization',
        'Basic ' + btoa(username + ':' + (password ? encodeUTF8(password) : ''))
      );
    } catch (e) {
      throw AxiosError.from(e, AxiosError.ERR_BAD_OPTION_VALUE, config);
    }
  }

  if (utils.isFormData(data)) {
    if (
      platform.hasStandardBrowserEnv ||
      platform.hasStandardBrowserWebWorkerEnv ||
      utils.isReactNative(data)
    ) {
      headers.setContentType(undefined); // browser/web worker/RN handles it
    } else if (utils.isFunction(data.getHeaders)) {
      // Node.js FormData (like form-data package)
      setFormDataHeaders(headers, data.getHeaders(), own('formDataHeaderPolicy'));
    }
  }

  // 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.hasStandardBrowserEnv) {