class Drupal {

  static async get(uri) {
    return await fetch(uri, {
      credentials: 'same-origin',
      method: 'GET',
      headers: {
        'Content-Type': 'application/json',
      },
    });
  }

  static async post(uri, data) {
    return await fetch(uri + '?_format=json', {
      credentials: 'same-origin',
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
        'X-CSRF-Token': await this.getToken(),
      },
      body: JSON.stringify(data),
    });
  }

  static async patch(uri, data) {
    return await fetch(uri + '?_format=json', {
      credentials: 'same-origin',
      method: 'PATCH',
      headers: {
        'Content-Type': 'application/json',
        'X-CSRF-Token': await this.getToken(),
      },
      body: JSON.stringify(data),
    });
  }

  static async delete(uri) {
    return await fetch(uri + '?_format=json', {
      credentials: 'same-origin',
      method: 'DELETE',
      headers: {
        'Content-Type': 'application/json',
        'X-CSRF-Token': await this.getToken(),
      },
    });
  }

  static async getToken() {
    let tokenResponse = await fetch('/rest/session/token', {credentials: 'same-origin'});
    return await tokenResponse.text();
  }

}

export default Drupal;