scufpong/src/auth-server/res/index.js

const inputUsername = document.getElementById("input-signup-username");
const inputPassword = document.getElementById("input-signup-password");
const buttonSignup = document.getElementById("button-signup");
const resultTxt = document.getElementById("result-text");

buttonSignup.onclick = async () => {
    const username = inputUsername.value;
    const password = inputPassword.value;
    // console.log(username);
    // console.log(password);

    const res = await fetch("http://127.0.0.1:8080/api/user/signup", {
        method: "POST",
        headers: {
            "Content-Type": "application/json"
        },
        body: JSON.stringify({
            "username": username,
            "password": password
        })
    });

    const resJson = await res.text();

    resultTxt.textContent = `${res.status} ${resJson}`;
};