const oauth = new OAuth({
      consumer: {
        key: this.config.consumerKey,
        secret: this.config.consumerSecret,
      },
      realm: this.config.account,
      signature_method: 'HMAC-SHA256',
      hash_function: (baseString, key) => {
        return crypto
          .createHmac('sha256', key)
          .update(baseString)
          .digest('base64');
      },
    });

    this.rest.interceptors.request.use((config) => {
      /**
       * Add OAuth Headers to the request.
       */
      config.url = decodeURI(this.rest.getUri(config)).replace(/\+/g, ' ');
      config.params = {};
      const OAuthHeaders = oauth.toHeader(
        oauth.authorize(
          {
            includeBodyHash: true,
            url: config.url,
            method: config.method || 'get',
            data: config.data,
          },
          {
            key: this.config.tokenId,
            secret: this.config.tokenSecret,
          },
        ),
      );
      config.headers['Authorization'] = OAuthHeaders.Authorization;
      return config;
    });