index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Random String Selector</title>
    <style>
        body {
            font-family: Arial, sans-serif;
        }
        #container {
            margin: 50px;
        }
    </style>
</head>
<body>
    <div id="container">
        <h1>Random String Selector</h1>
        <textarea id="inputStrings" rows="10" cols="50" placeholder="Enter strings here, one per line"></textarea><br><br>
        <button onclick="selectRandomString()">Select Random String</button>
        <p id="result"></p>
    </div>

    <script>
        async function selectRandomString() {
            const input = document.getElementById('inputStrings').value;
            const strings = input.split('\n').map(s => s.trim()).filter(s => s);

            const response = await fetch('/select-string', {
                method: 'POST',
                headers: {
                    'Content-Type': 'application/json'
                },
                body: JSON.stringify({ strings })
            });

            const data = await response.json();
            document.getElementById('result').innerText = `Selected String: ${data.selectedString}`;
        }
    </script>
</body>
</html>