axios失败时的定时重试

const axios = require('axios');

axios.interceptors.response.use(undefined, (err) => {
  const { config, response } = err;
  if (response && response.status === 500) {
    // 请求失败，进行重试
    config.__retryCount = config.__retryCount || 0;
    if (config.__retryCount >= 3) {
      // 最多重试3次
      return Promise.reject(err);
    }
    config.__retryCount += 1;
    const delay = config.retryDelay || 0;
    return new Promise((resolve) => {
      setTimeout(() => resolve(axios(config)), delay);
    });
  }
  return Promise.reject(err);
});

axios.get('https://example.com/api')
  .then((response) => {
    // 请求成功的处理逻辑
    console.log(response.data);
  })
  .catch((error) => {
    // 请求失败的处理逻辑
    console.error(error);
  });