HTTP server in different languages

Problem statement

The server listens on localhost:8000 and exposes /version endpoint.

The /version endpoint returns a RESTful JSON response with the "version" fields. The payload should be serialized to JSON from a struct or class, not printed as a simple string.

Other routes, root included, should return 404.

When the server runs, it should respond to curl http://localhost:8000/version or in the web browser.

Used compilers and interpreters

language	version	source	run command
zig	0.14.0	main.zig	make zig
rustc	1.82.0	main.rs	make rust
swift	6.0	main.swift	make swift
go	1.23	main.go	make go
d/ldc	1.40	main.d	make d
ruby	3.3.6	main.rb	make ruby
dart	3.5.4	main.dart	make dart
deno	2.0.6	main-deno.ts	make deno
bun	1.1.34	main-bun.ts	make bun
node	23.1.0	main.js	make node
php	8.3.13	main.php	make php
python	3.13	main.py	make python
pascal/fpc	3.2.2	main.pas	make fpc
lua	5.4.7	main.lua	make lua
csharp/dotnet	9.0.0	main.cs	make cs
perl	5.34.1	main.pl	make perl

All implementations above are tested on macOS 15.1 Sequoia.

Run client

make q or curl -q http://localhost:8000/version.

Contributions

C# version is rewritten by @neon-sunset

Swift version is rewritten by @Frizlab