index.js

const express = require('express');
const { createProxyMiddleware } = require('http-proxy-middleware');
const cors = require('cors')

const PORT = 7860;
const API_CONFIG = JSON.parse(process.env.API_CONFIG || "{}")

const app = express();

app.use(cors())

function formatValue(value) {
  let result = value
  if (typeof result === 'string') {
    result = {
      target: value
    }
  }
  return result
}

for (const [path, value] of Object.entries(API_CONFIG)) {
  const format = formatValue(value)
  const apiProxy = createProxyMiddleware(path, {
    target: format.target,
    changeOrigin: true,
    pathRewrite: {
      [`^${path}`]: '',
    },
    onProxyReq: (proxyReq, req, res) => {
      console.log(format);
      if (format.auth || format.auth == '') {
        proxyReq.setHeader('authorization', 'Bearer ' + format.auth)
      }
    },
    onProxyRes: (proxyRes, req, res) => {
      if (req.originalUrl === path || req.originalUrl === path + '/') {
        res.json({
          code: 200,
          details: 'success',
        });
      }
    },
  });
  app.use(path, apiProxy);
}


app.listen(PORT, () => {
  console.log(`Service running successfully http://localhost:${PORT}`);
});