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fun/examples/tcp_http_get.fun

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/**
* This file is part of the Fun programming language.
* https://fun-lang.xyz/
*
* Copyright 2025 Johannes Findeisen <you@hanez.org>
* Licensed under the terms of the Apache-2.0 license.
* https://opensource.org/license/apache-2-0
*
* Added: 2025-10-04
*/
/*
* Simple TCP client in Fun: fetches HTTP/1.0 from example.org
* Requires network access. Demonstrates tcp_connect, sock_send, sock_recv, sock_close.
*/
host = "example.org"
port = 80
fd = tcp_connect(host, port)
if (fd <= 0)
print("connect failed")
else
req = join([
"GET / HTTP/1.0\r\n",
"Host: ", host, "\r\n",
"User-Agent: fun/0.20\r\n",
"Connection: close\r\n\r\n"
], "")
sent = sock_send(fd, req)
// Read up to 8192 bytes (first chunk)
data = sock_recv(fd, 8192)
print(data)
sock_close(fd)
/* Possible output:
HTTP/1.1 200 OK
Date: Thu, 18 Dec 2025 23:05:52 GMT
Content-Type: text/html
Connection: close
Vary: accept-encoding
Server: cloudflare
Last-Modified: Wed, 17 Dec 2025 03:51:06 GMT
Accept-Ranges: bytes
Cache-Control: max-age=14400
cf-cache-status: REVALIDATED
CF-RAY: 9b024eb71d91e51d-TXL
<!doctype html><html lang="en"><head><title>Example Domain</title><meta name="viewport" content="width=device-width, initial-scale=1"><style>body{background:#eee;width:60vw;margin:15vh auto;font-family:system-ui,sans-serif}h1{font-size:1.5em}div{opacity:0.8}a:link,a:visited{color:#348}</style><body><div><h1>Example Domain</h1><p>This domain is for use in documentation examples without needing permission. Avoid use in operations.<p><a href="https://iana.org/domains/example">Learn more</a></div></body></html>
*/