rust-x402 0.3.0

HTTP-native micropayments with x402 protocol
Documentation
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>x402 Integration Test Frontend</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            padding: 2rem;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
        }

        .header {
            background: white;
            border-radius: 12px;
            padding: 2rem;
            margin-bottom: 2rem;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        }

        h1 {
            color: #333;
            margin-bottom: 0.5rem;
        }

        .subtitle {
            color: #666;
            font-size: 0.9rem;
        }

        .card {
            background: white;
            border-radius: 12px;
            padding: 2rem;
            margin-bottom: 2rem;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        }

        .card h2 {
            color: #333;
            margin-bottom: 1rem;
            font-size: 1.25rem;
        }

        .endpoint-list {
            list-style: none;
        }

        .endpoint-list li {
            padding: 0.75rem;
            margin-bottom: 0.5rem;
            background: #f8f9fa;
            border-radius: 6px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .endpoint-list li code {
            background: #e9ecef;
            padding: 0.25rem 0.5rem;
            border-radius: 4px;
            font-family: 'Courier New', monospace;
        }

        button {
            background: #667eea;
            color: white;
            border: none;
            padding: 0.75rem 1.5rem;
            border-radius: 6px;
            cursor: pointer;
            font-size: 1rem;
            transition: background 0.2s;
        }

        button:hover {
            background: #5568d3;
        }

        button:disabled {
            background: #ccc;
            cursor: not-allowed;
        }

        .response {
            margin-top: 1rem;
            padding: 1rem;
            background: #f8f9fa;
            border-radius: 6px;
            border-left: 4px solid #667eea;
            white-space: pre-wrap;
            font-family: 'Courier New', monospace;
            font-size: 0.9rem;
            max-height: 400px;
            overflow-y: auto;
        }

        .error {
            border-left-color: #dc3545;
            background: #fee;
            color: #721c24;
        }

        .success {
            border-left-color: #28a745;
            background: #d4edda;
            color: #155724;
        }

        .status {
            display: inline-block;
            padding: 0.25rem 0.5rem;
            border-radius: 4px;
            font-size: 0.85rem;
            font-weight: 600;
        }

        .status-200 {
            background: #d4edda;
            color: #155724;
        }

        .status-402 {
            background: #fff3cd;
            color: #856404;
        }

        .status-error {
            background: #f8d7da;
            color: #721c24;
        }

        .config-section {
            margin-top: 1rem;
            padding-top: 1rem;
            border-top: 1px solid #e9ecef;
        }

        .config-section label {
            display: block;
            margin-bottom: 0.5rem;
            color: #666;
            font-weight: 500;
        }

        .config-section input {
            width: 100%;
            padding: 0.5rem;
            border: 1px solid #ddd;
            border-radius: 4px;
            font-size: 1rem;
        }

        .loading {
            display: inline-block;
            width: 16px;
            height: 16px;
            border: 2px solid #f3f3f3;
            border-top: 2px solid #667eea;
            border-radius: 50%;
            animation: spin 1s linear infinite;
            margin-left: 0.5rem;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
    </style>
</head>
<body>
    <div class="container">
        <div class="header">
            <h1>🚀 x402 Integration Test Frontend</h1>
            <p class="subtitle">Test x402 payment flows with Docker integration test environment</p>
        </div>

        <div class="card">
            <h2>Configuration</h2>
            <div class="config-section">
                <label for="backend-url">Backend URL:</label>
                <input type="text" id="backend-url" value="http://localhost:4021" placeholder="http://localhost:4021">
            </div>
            <div class="config-section">
                <label for="private-key">Test Private Key (for signing):</label>
                <input type="text" id="private-key" value="0xac0974bec39a17e36ba4a6b4d238ff944bacb478cbed5efcae784d7bf4f2ff80" placeholder="0x...">
            </div>
            <div class="config-section">
                <label for="payer-address">Payer Address:</label>
                <input type="text" id="payer-address" value="0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266" placeholder="0x...">
            </div>
        </div>

        <div class="card">
            <h2>Test Endpoints</h2>
            <ul class="endpoint-list">
                <li>
                    <span><code>GET /health</code> - Health check (no payment)</span>
                    <button onclick="testEndpoint('/health')">Test</button>
                </li>
                <li>
                    <span><code>GET /joke</code> - Premium joke API</span>
                    <button onclick="testEndpoint('/joke')">Test</button>
                </li>
                <li>
                    <span><code>GET /api/data</code> - Premium data API</span>
                    <button onclick="testEndpoint('/api/data')">Test</button>
                </li>
                <li>
                    <span><code>GET /test</code> - Test endpoint</span>
                    <button onclick="testEndpoint('/test')">Test</button>
                </li>
            </ul>
        </div>

        <div class="card">
            <h2>Response</h2>
            <div id="response" class="response" style="display: none;"></div>
        </div>
    </div>

    <script src="app.js"></script>
</body>
</html>