Created
March 9, 2023 20:50
-
-
Save ka2n/61b3f706d0e254b5056535708e40c491 to your computer and use it in GitHub Desktop.
echo server
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| package main | |
| import ( | |
| "fmt" | |
| "log" | |
| "net/http" | |
| "os" | |
| ) | |
| func main() { | |
| port := os.Getenv("PORT") | |
| if port == "" { | |
| port = "8080" | |
| } | |
| if err := http.ListenAndServe(":" + port, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { | |
| fmt.Fprint(w, "OK") | |
| })); err != nil { | |
| log.Fatal(err) | |
| } | |
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| use std::net::{TcpStream, TcpListener}; | |
| use std::io::{Write}; | |
| use std::thread; | |
| use std::env; | |
| fn handle_write(mut stream: TcpStream) { | |
| let response = b"HTTP/1.1 200 OK\r\nContent-Type: text/html; charset=UTF-8\r\n\r\n<html><body>Hello world</body></html>\r\n"; | |
| match stream.write(response) { | |
| Ok(_) => println!("Response sent"), | |
| Err(e) => println!("Failed sending response: {}", e), | |
| } | |
| } | |
| fn handle_client(stream: TcpStream) { | |
| handle_write(stream); | |
| } | |
| fn main() { | |
| let port = env::var("PORT").unwrap_or_else(|_| "8080".to_string()); | |
| let listener = TcpListener::bind(format!("127.0.0.1:{}", port)).unwrap(); | |
| println!("Listening for connections on port {}", port); | |
| for stream in listener.incoming() { | |
| match stream { | |
| Ok(stream) => { | |
| thread::spawn(|| { | |
| handle_client(stream) | |
| }); | |
| } | |
| Err(e) => { | |
| println!("Unable to connect: {}", e); | |
| } | |
| } | |
| } | |
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| const std = @import("std"); | |
| const net = std.net; | |
| const mem = std.mem; | |
| const fs = std.fs; | |
| const io = std.io; | |
| pub fn main() anyerror!void { | |
| var arena = std.heap.ArenaAllocator.init(std.heap.page_allocator); | |
| defer arena.deinit(); | |
| const env_map = try arena.allocator().create(std.process.EnvMap); | |
| env_map.* = try std.process.getEnvMap(arena.allocator()); | |
| defer env_map.deinit(); // technically unnecessary when using ArenaAllocator | |
| const port = try std.fmt.parseInt(u16, env_map.get("PORT") orelse "8080", 10); | |
| const addr = try net.Address.resolveIp("0.0.0.0", port); | |
| try server(addr); | |
| } | |
| pub fn server(addr: net.Address) anyerror!void { | |
| var s = net.StreamServer.init(.{}); | |
| defer s.deinit(); | |
| std.debug.print("Listening on {s}\n", .{addr}); | |
| try s.listen(addr); | |
| defer s.close(); | |
| while (s.accept()) |conn| { | |
| try handleConn(conn); | |
| } else |err| { | |
| return err; | |
| } | |
| } | |
| pub fn handleConn(conn: net.StreamServer.Connection) anyerror!void { | |
| const s = &conn.stream; | |
| defer s.close(); | |
| _ = try s.write("HTTP/1.1 200 OK\r\nContent-Type: text/html; charset=UTF-8\r\n\r\n<html><body>Hello world</body></html>\r\n"); | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment