Fetcher

import { fetcher, createFetcher } from '@thewebformula/lithe';

/** Main fetcher */

// interceptors
fetcher('/get', { interceptors: {
  // called on 401
  auth(config) {
    config.headers.Authorization = 'Bearer token';
    return config;
  },
  before(config) {
    // modify config
    return config;
  }
});

/** Example: JWT refresh access token on 401 */
fetcher('/get', { interceptors: {
  async auth(config) {
    const refreshResponse = await fetcher('/refreshToken', {
      headers: { Authorization: 'Bearer refresh_token' }
    });
    config.headers.Authorization = await refreshResponse.text();
    return config;
  }
});


/** Fetcher instance */

// global config for all instance requests
const fetcherInstance = createFetcher({
  baseUrl: '',
  headers: {
    Authorization: 'Bearer token'
  },
  interceptors: {
    auth(config) {
      config.headers.Authorization = 'Bearer token';
      return config;
    },
    before(config) {
      // modify config
      return config;
    }
  }
});

fetcherInstance('/get');

// request specific interceptors using an instance
fetcherInstance('/get', {}, interceptors: {
  auth(config) {
    config.headers.Authorization = 'Bearer token';
    return config;
  },
  before(config) {
    config.headers.Authorization = 'Bearer token';
    return config;
  }
});