api-explorer-cli/server.js

A CLI tool to proxy localhost API requests for the API Explorer web app

import express from 'express';
import axios from 'axios';
import cors from 'cors';

const app = express();
const port = process.env.PORT || 5000;

app.use(cors({
  origin: 'https://your-api-explorer.vercel.app', // Replace with your Vercel domain
}));
app.use(express.json());

// Endpoint to handle localhost proxy requests
app.post('/api/proxy-localhost', async (req, res) => {
  const { url, method = 'GET', headers = {}, body } = req.body;

  if (!url || !url.startsWith('http://localhost')) {
    return res.status(400).json({ error: 'Invalid or non-localhost URL' });
  }

  try {
    // Forward request to CLI script's proxy server
    const response = await axios.post('http://localhost:9999/proxy', {
      url,
      method,
      headers,
      body,
    });

    res.json(response.data);
  } catch (error) {
    res.status(500).json({
      error: 'Failed to connect to proxy server',
      details: error.message,
    });
  }
});

// Start the server
app.listen(port, () => {
  console.log(`Backend running on port ${port}`);
});