所以我认为这样做的方法是使用中间件来设置头，并传递Axios示例

// apiSetHeader.js middleware
exports.default = (req, res, next) => {
  req.CustomAxios = axios.create({
    headers: { 'HeaderForTheApi': req.headers.apiHeader'}
  })
  next()
}

字符串
然后在你的路线中使用它

// Exemple GET route
router.get('/get', apiSetHeaderMiddleware, async (req, res, next) => {
  try {
    const { data } = await req.CustomAxios.get('https://kjhf.fsadjhfewq.....');
  } catch (error) {
    console.log(error)
  }
  res.status(200).json({});
});

型
希望这对你有帮助！

我会这么做
1.创建一个自定义的express中间件，将axios示例作为参数，并添加到axios header或config中：

function customMiddleware(axiosInstance) {
  return (req, res, next) => {
    //add to axios config
    axiosInstance.defaults['token'] = '<whatever you want>';
    //or add to axios header
    //axiosInstance.defaults.headers.common['token'] = <whatever you want>;
    next();
  };
}

字符串
1.然后创建你的axios示例并使用express中的中间件：

const express = require('express');
const axios = require('axios');

const axiosInstance = axios.create({
   baseURL: 'http://www.example.com',
   //...whatever else you need
});

const app = express();

app.use(customMiddleware(axiosInstance));

型
1.现在，您的axios请求或响应拦截器应该可以访问添加的值：

axiosInstance.interceptors.request.use(
  (axiosConfig) => console.log(axiosConfig.token),
  //or axiosConfig.headers.token if added as a header
  (error) => console.log(error),
);

axiosInstance.interceptors.response.use(
  (axiosResponse) => console.log(axiosResponse.config.token),
  //or axiosResponse.config.headers.token if added as a header
  (error) => console.log(error),
);

型
更多信息，请参阅express和axios docs。