<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
<style>
#box {
width: 200px;
height: 100px;
border: solid 1px pink;
}
</style>
</head>
<body>
<div id="box"></div>
<script>
const box = document.querySelector("#box");
window.onkeydown = function () {
const xhr = new XMLHttpRequest();
xhr.responseType = "json";
xhr.open("GET", "http://127.0.0.1:8000/json-server");
xhr.send();
xhr.onreadystatechange = function () {
if (xhr.readyState === 4) {
if (xhr.status >= 200 && xhr.status < 300) {
box.innerHTML = xhr.response.name;
} else {
}
}
};
};
</script>
</body>
</html>