client.js

import { io } from "socket.io-client";
import readline from "readline";

function ask(question) {
    const rl = readline.createInterface({
        input: process.stdin,
        output: process.stdout
    });
    return new Promise(resolve => {
        rl.question(question, (answer) => {
            rl.close();
            resolve(answer);
        });
    });
}
async function main() {
    const username = await ask("Username: ");
    const key = await ask("Password/API key: ");
    const socket = io("http://localhost:3000", {
        auth: {
            username,
            key
        }
    });
    const rl = readline.createInterface({
        input: process.stdin,
        output: process.stdout,
        prompt: "cache> "
    });
    socket.on("connect", () => {
        console.log("Connected:", socket.id);
        rl.prompt();
    });
    socket.on("connect_error", (err) => {
        console.log("Auth failed:", err.message);
        process.exit(1);
    });
    socket.on("success", (data) => {
        console.log("[SUCCESS]", data);
        rl.prompt();
    });
    socket.on("getResult", (data) => {
        console.log("[GET]", data);
        rl.prompt();
    });
    socket.on("error", (data) => {
        console.log("[ERROR]", data);
        rl.prompt();
    });
    rl.on("line", (line) => {
        const parts = line.trim().split(" ");
        const cmd = parts[0];
        if (cmd === "join") {
            socket.emit("join", { roomName: parts[1] });
        }
        else if (cmd === "set") {
            socket.emit("set", {
                roomName: parts[1],
                key: parts[2],
                value: parts[3],
                ttl: parts[4] ? Number(parts[4]) : undefined
            });
        }
        else if (cmd === "get") {
            socket.emit("get", {
                roomName: parts[1],
                key: parts[2]
            });
        }
        else if (cmd === "delete") {
            socket.emit("delete", {
                roomName: parts[1],
                key: parts[2]
            });
        }
        else if (cmd === "exit") {
            socket.disconnect();
            rl.close();
            process.exit(0);
        }
        else {
            console.log("Commands: join, set, get, delete, exit");
        }
        rl.prompt();
    });
}
main();