🥳<Help~　You~　Build~　Server~

🚴‍♀️When Beginners would like to build a server by any language, or use curl command, or understand...🚴‍♂️

🦊Summary🦊

After Download, you can build a server by Go, Python, JavaScript(Deno), Ruby, Node.js, Bun, PHP, Elixir, or Rust — all with a single one-liner command!

You can practice using curl command, understand how to build a server, or customize to your liking.

🐼About Server and Client🐼

Note You can use with ease because you can build a server at localhost(127.0.0.1)🫶

Note Because localhost can be seen by only you, and it is not public🤠

POST: A server will acknowledge, and response the message if you send correct request including the arguments of 'text' and 'number'

GET: A server will acknowledge the request, although a server won't response to Client

🐸About Port, and Practice🐸

Note Actually, it's no relations, and it's no problem you change the number of port.

Note Wiki is updated occasionally for Beginners.

For Beginners, it is used different port at any language, though.

• Go -> localhost:3010
• Python -> localhost:3020
• JavaScript(Deno) -> localhost:3030
• Ruby -> localhost:3040
• Node.js -> localhost:3050
• Bun -> localhost:3060
• PHP -> localhost:3070
• Elixir -> localhost:3080
• Rust -> localhost:3090

---

1) Golang　　← localhost:3010

⓪Confirm Version

go version go1.22.0 darwin/arm64 when I confirmed by using go version

①Command Example (One-liner🎉)

🎂A Terminal in the side of Server

go run main.go

🎸Another Terminal in the side of Client

curl -X POST -d 'text=ニコニコ' -d 'number=2525' localhost:3010/admin

②Standard Output Example in the side of Server🎂

Server is started at http://localhost:3010

Accepted Control message, Text: ニコニコ, Number: 2525

③Standard Output Example in the side of Client🎸

Sent Control message about Text: ニコニコ, Number: 2525

2) Python　　← localhost:3020

⓪Confirm Version

Python 3.12.0 when I confirmed by using python --version

Note startswith() can be used since Python 3.9

①Command Example (One-liner🎉)

🎂A Terminal in the side of Server

python main.py

🎸Another Terminal in the side of Client

curl -X POST -d 'text=ニコニコ' -d 'number=2525' localhost:3020/admin

②Standard Output Example in the side of Server🎂

Server is started at http://localhost:3020

Accepted Control message: Text: ニコニコ, Number: 2525

③Standard Output Example in the side of Client🎸

OK, Accepted Control message: Text: ニコニコ, Number: 2525

3) JavaScript(Deno)　　← localhost:3030

Updated to use Deno.serve() — the recommended API since Deno v1.35 / v2.x (no import needed).

⓪Confirm Version

deno 2.0.0, v8 13.x, typescript 5.x when I confirmed by using deno --version

①Command Example (One-liner🎉)

🎂A Terminal in the side of Server

deno run --allow-net main.ts

🎸Another Terminal in the side of Client

curl -X POST -d 'text=ニコニコ' -d 'number=2525' localhost:3030/admin

②Standard Output Example in the side of Server🎂

Server is started at http://localhost:3030

Listening on http://localhost:3030/

Accepted Control message, Text: ニコニコ, Number: 2525

③Standard Output Example in the side of Client🎸

OK, Accepted Control message, Text: ニコニコ, Number: 2525

4) Ruby　　← localhost:3040

⓪Confirm Version

ruby 3.3.0 (2023-12-25) [arm64-darwin23] when I confirmed by using ruby -v

Note you must run gem install webrick if you haven't installed it

①Command Example (One-liner🎉)

🎂A Terminal in the side of Server

ruby main.rb

🎸Another Terminal in the side of Client

curl -X POST -d 'text=ニコニコ' -d 'number=2525' localhost:3040/admin

②Standard Output Example in the side of Server🎂

Server is started at http://localhost:3040

[2024-01-01 12:00:00] INFO WEBrick 1.8.1

Accepted Control message, Text: ニコニコ, Number: 2525

③Standard Output Example in the side of Client🎸

OK, Accepted Control message, Text: ニコニコ, Number: 2525

5) Node.js　　← localhost:3050

⓪Confirm Version

v22.0.0 when I confirmed by using node --version

Note Uses only the built-in node:http module — no npm install needed

①Command Example (One-liner🎉)

🎂A Terminal in the side of Server

node main.mjs

🎸Another Terminal in the side of Client

curl -X POST -d 'text=ニコニコ' -d 'number=2525' localhost:3050/admin

②Standard Output Example in the side of Server🎂

Server is started at http://localhost:3050

Accepted Control message, Text: ニコニコ, Number: 2525

③Standard Output Example in the side of Client🎸

OK, Accepted Control message, Text: ニコニコ, Number: 2525

6) Bun　　← localhost:3060

⓪Confirm Version

1.1.0 when I confirmed by using bun --version

Note Uses Bun's built-in Bun.serve() — no package install needed

①Command Example (One-liner🎉)

🎂A Terminal in the side of Server

bun main.bun.ts

🎸Another Terminal in the side of Client

curl -X POST -d 'text=ニコニコ' -d 'number=2525' localhost:3060/admin

②Standard Output Example in the side of Server🎂

Server is started at http://localhost:3060

Accepted Control message, Text: ニコニコ, Number: 2525

③Standard Output Example in the side of Client🎸

OK, Accepted Control message, Text: ニコニコ, Number: 2525

7) PHP　　← localhost:3070

⓪Confirm Version

PHP 8.3.0 when I confirmed by using php --version

Note Uses PHP's built-in web server — no framework or composer needed

①Command Example (One-liner🎉)

🎂A Terminal in the side of Server

php -S localhost:3070 main.php

🎸Another Terminal in the side of Client

curl -X POST -d 'text=ニコニコ' -d 'number=2525' localhost:3070/admin

②Standard Output Example in the side of Server🎂

Server is started at http://localhost:3070

Accepted Control message, Text: ニコニコ, Number: 2525

③Standard Output Example in the side of Client🎸

OK, Accepted Control message, Text: ニコニコ, Number: 2525

8) Elixir　　← localhost:3080

⓪Confirm Version

Elixir 1.16.0 (compiled with Erlang/OTP 26) when I confirmed by using elixir --version

Note Uses :gen_tcp from Erlang/OTP standard library — no mix project needed

①Command Example (One-liner🎉)

🎂A Terminal in the side of Server

elixir main.exs

🎸Another Terminal in the side of Client

curl -X POST -d 'text=ニコニコ' -d 'number=2525' localhost:3080/admin

②Standard Output Example in the side of Server🎂

Server is started at http://localhost:3080

Accepted Control message, Text: ニコニコ, Number: 2525

③Standard Output Example in the side of Client🎸

OK, Accepted Control message, Text: ニコニコ, Number: 2525

9) Rust　　← localhost:3090

⓪Confirm Version

rustc 1.78.0 when I confirmed by using rustc --version

Note Uses only the Rust standard library (std::net) — no external crates needed

①Command Example (One-liner🎉)

🎂A Terminal in the side of Server

cargo run

Run this command inside the rust/ directory.

🎸Another Terminal in the side of Client

curl -X POST -d 'text=ニコニコ' -d 'number=2525' localhost:3090/admin

②Standard Output Example in the side of Server🎂

Server is started at http://localhost:3090

Accepted Control message, Text: ニコニコ, Number: 2525

③Standard Output Example in the side of Client🎸

OK, Accepted Control message, Text: ニコニコ, Number: 2525