如何通过express使用node-oidc-provider access_token？

npm install express node-oidc-provider

const express = require('express');
const { Provider } = require('oidc-provider');

const app = express();

// OIDC Provider配置
const configuration = {
  // 必填项，指定Provider的URL
  issuer: 'http://localhost:3000',
  // 其他配置项，根据需求自行配置
};

const provider = new Provider('http://localhost:3000', configuration);

// 在应用程序中使用OIDC Provider
app.use(provider.callback());

// 启动Express服务器
app.listen(3000, () => {
  console.log('Express server is running on port 3000');
});

const request = require('request');

const clientID = 'YOUR_CLIENT_ID';
const clientSecret = 'YOUR_CLIENT_SECRET';

// 获取access_token
request.post(
  {
    url: 'http://localhost:3000/token', // 通过OIDC Provider获取access_token的URL
    form: {
      client_id: clientID,
      client_secret: clientSecret,
      grant_type: 'authorization_code',
      code: 'YOUR_AUTHORIZATION_CODE',
      redirect_uri: 'YOUR_REDIRECT_URI',
    },
  },
  (error, response, body) => {
    if (!error && response.statusCode == 200) {
      const token = JSON.parse(body).access_token;
      // 在这里使用access_token
      console.log('Access Token:', token);
    }
  }
);