deno proxy

deno_proxy.ts

// main.ts
import { serve } from "https://deno.land/std/http/server.ts";

const target = "https://example.com";  // destination URL
const port = 8000;

async function handleRequest(req: Request): Promise<Response> {
  const url = new URL(req.url);
  const targetUrl = `${target}${url.pathname}${url.search}`;
  
  const response = await fetch(targetUrl, {
    method: req.method,
    headers: req.headers,
    body: req.method === "POST" || req.method === "PUT" ? await req.text() : undefined,
  });

  const responseBody = await response.arrayBuffer();
  const responseHeaders = new Headers(response.headers);
  return new Response(responseBody, {
    status: response.status,
    headers: responseHeaders,
  });
}

console.log(`HTTP proxy server running at http://localhost:${port}/`);
serve(handleRequest, { port })

This is a reverse proxy example written in TypeScript that runs on Deno.