| | <!DOCTYPE html> |
| | <html lang="en"> |
| | <head> |
| | <meta charset="UTF-8"> |
| | <meta name="viewport" content="width=device-width, initial-scale=1.0"> |
| | <title>WebSocket Real-Time Sync Demo</title> |
| | <style> |
| | * { |
| | margin: 0; |
| | padding: 0; |
| | box-sizing: border-box; |
| | } |
| | |
| | body { |
| | font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; |
| | background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); |
| | min-height: 100vh; |
| | padding: 20px; |
| | } |
| | |
| | .container { |
| | max-width: 1200px; |
| | margin: 0 auto; |
| | background: white; |
| | border-radius: 12px; |
| | box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2); |
| | overflow: hidden; |
| | } |
| | |
| | .header { |
| | background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); |
| | color: white; |
| | padding: 30px; |
| | text-align: center; |
| | } |
| | |
| | .header h1 { |
| | font-size: 2em; |
| | margin-bottom: 10px; |
| | } |
| | |
| | .header p { |
| | opacity: 0.9; |
| | } |
| | |
| | .controls { |
| | padding: 20px; |
| | background: #f8f9fa; |
| | border-bottom: 1px solid #dee2e6; |
| | display: flex; |
| | gap: 10px; |
| | align-items: center; |
| | flex-wrap: wrap; |
| | } |
| | |
| | .input-group { |
| | display: flex; |
| | gap: 10px; |
| | align-items: center; |
| | flex: 1; |
| | min-width: 300px; |
| | } |
| | |
| | .input-group input { |
| | flex: 1; |
| | padding: 10px 15px; |
| | border: 2px solid #dee2e6; |
| | border-radius: 6px; |
| | font-size: 14px; |
| | } |
| | |
| | .input-group input:focus { |
| | outline: none; |
| | border-color: #667eea; |
| | } |
| | |
| | button { |
| | padding: 10px 20px; |
| | border: none; |
| | border-radius: 6px; |
| | font-size: 14px; |
| | font-weight: 600; |
| | cursor: pointer; |
| | transition: all 0.3s; |
| | } |
| | |
| | .btn-connect { |
| | background: #28a745; |
| | color: white; |
| | } |
| | |
| | .btn-connect:hover { |
| | background: #218838; |
| | } |
| | |
| | .btn-disconnect { |
| | background: #dc3545; |
| | color: white; |
| | } |
| | |
| | .btn-disconnect:hover { |
| | background: #c82333; |
| | } |
| | |
| | .status { |
| | display: inline-block; |
| | padding: 5px 15px; |
| | border-radius: 20px; |
| | font-size: 12px; |
| | font-weight: 600; |
| | text-transform: uppercase; |
| | } |
| | |
| | .status.connected { |
| | background: #d4edda; |
| | color: #155724; |
| | } |
| | |
| | .status.disconnected { |
| | background: #f8d7da; |
| | color: #721c24; |
| | } |
| | |
| | .content { |
| | display: grid; |
| | grid-template-columns: 1fr 1fr; |
| | gap: 20px; |
| | padding: 20px; |
| | } |
| | |
| | @media (max-width: 768px) { |
| | .content { |
| | grid-template-columns: 1fr; |
| | } |
| | } |
| | |
| | .panel { |
| | background: #f8f9fa; |
| | border-radius: 8px; |
| | overflow: hidden; |
| | } |
| | |
| | .panel-header { |
| | background: #e9ecef; |
| | padding: 15px 20px; |
| | font-weight: 600; |
| | border-bottom: 2px solid #dee2e6; |
| | } |
| | |
| | .panel-body { |
| | padding: 20px; |
| | max-height: 500px; |
| | overflow-y: auto; |
| | } |
| | |
| | .message { |
| | background: white; |
| | border-radius: 6px; |
| | padding: 15px; |
| | margin-bottom: 10px; |
| | border-left: 4px solid #667eea; |
| | animation: slideIn 0.3s ease; |
| | } |
| | |
| | @keyframes slideIn { |
| | from { |
| | opacity: 0; |
| | transform: translateX(-20px); |
| | } |
| | to { |
| | opacity: 1; |
| | transform: translateX(0); |
| | } |
| | } |
| | |
| | .message .timestamp { |
| | font-size: 11px; |
| | color: #6c757d; |
| | margin-bottom: 5px; |
| | } |
| | |
| | .message .type { |
| | display: inline-block; |
| | padding: 3px 8px; |
| | border-radius: 4px; |
| | font-size: 11px; |
| | font-weight: 600; |
| | text-transform: uppercase; |
| | margin-bottom: 8px; |
| | } |
| | |
| | .type.connected { |
| | background: #d4edda; |
| | color: #155724; |
| | } |
| | |
| | .type.task_update { |
| | background: #cce5ff; |
| | color: #004085; |
| | } |
| | |
| | .type.reminder_created { |
| | background: #fff3cd; |
| | color: #856404; |
| | } |
| | |
| | .type.error { |
| | background: #f8d7da; |
| | color: #721c24; |
| | } |
| | |
| | .message pre { |
| | background: #f8f9fa; |
| | padding: 10px; |
| | border-radius: 4px; |
| | overflow-x: auto; |
| | font-size: 12px; |
| | margin-top: 8px; |
| | } |
| | |
| | .empty-state { |
| | text-align: center; |
| | color: #6c757d; |
| | padding: 40px; |
| | } |
| | |
| | .empty-state svg { |
| | width: 64px; |
| | height: 64px; |
| | margin-bottom: 15px; |
| | opacity: 0.5; |
| | } |
| | </style> |
| | </head> |
| | <body> |
| | <div class="container"> |
| | <div class="header"> |
| | <h1>🔗 Real-Time Task Sync</h1> |
| | <p>WebSocket demonstration for multi-client synchronization</p> |
| | </div> |
| |
|
| | <div class="controls"> |
| | <div class="input-group"> |
| | <input |
| | type="text" |
| | id="userId" |
| | placeholder="Enter your User ID" |
| | value="test-user-1" |
| | /> |
| | </div> |
| | <button class="btn-connect" id="connectBtn" onclick="connect()">Connect</button> |
| | <button class="btn-disconnect" id="disconnectBtn" onclick="disconnect()" style="display: none;">Disconnect</button> |
| | <span class="status disconnected" id="status">Disconnected</span> |
| | </div> |
| |
|
| | <div class="content"> |
| | <div class="panel"> |
| | <div class="panel-header">📨 Received Messages</div> |
| | <div class="panel-body" id="messages"> |
| | <div class="empty-state"> |
| | <svg fill="none" stroke="currentColor" viewBox="0 0 24 24"> |
| | <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M20 13V6a2 2 0 00-2-2H6a2 2 0 00-2 2v7m16 0v5a2 2 0 01-2 2H6a2 2 0 01-2-2v-5m16 0h-2.586a1 1 0 00-.707.293l-2.414 2.414a1 1 0 01-.707.293h-3.172a1 1 0 01-.707-.293l-2.414-2.414A1 1 0 006.586 13H4"></path> |
| | </svg> |
| | <p>No messages yet. Connect to start receiving updates!</p> |
| | </div> |
| | </div> |
| | </div> |
| |
|
| | <div class="panel"> |
| | <div class="panel-header">📊 Connection Statistics</div> |
| | <div class="panel-body"> |
| | <div id="stats"> |
| | <p><strong>Messages Received:</strong> <span id="msgCount">0</span></p> |
| | <p><strong>Last Message:</strong> <span id="lastMsg">Never</span></p> |
| | <p><strong>Connection Time:</strong> <span id="connTime">Not connected</span></p> |
| | </div> |
| | </div> |
| | </div> |
| | </div> |
| | </div> |
| |
|
| | <script> |
| | let ws = null; |
| | let messageCount = 0; |
| | let connectTime = null; |
| | |
| | function connect() { |
| | const userId = document.getElementById('userId').value; |
| | |
| | if (!userId) { |
| | alert('Please enter a User ID'); |
| | return; |
| | } |
| | |
| | |
| | document.getElementById('connectBtn').style.display = 'none'; |
| | document.getElementById('disconnectBtn').style.display = 'inline-block'; |
| | document.getElementById('status').textContent = 'Connecting...'; |
| | document.getElementById('status').className = 'status disconnected'; |
| | |
| | |
| | const wsUrl = `ws://localhost:8000/ws?user_id=${encodeURIComponent(userId)}`; |
| | ws = new WebSocket(wsUrl); |
| | |
| | ws.onopen = function() { |
| | console.log('WebSocket connected'); |
| | connectTime = new Date(); |
| | updateStatus('Connected'); |
| | document.getElementById('connTime').textContent = connectTime.toLocaleTimeString(); |
| | }; |
| | |
| | ws.onmessage = function(event) { |
| | console.log('Message received:', event.data); |
| | |
| | try { |
| | const message = JSON.parse(event.data); |
| | displayMessage(message); |
| | messageCount++; |
| | document.getElementById('msgCount').textContent = messageCount; |
| | document.getElementById('lastMsg').textContent = new Date().toLocaleTimeString(); |
| | } catch (e) { |
| | console.error('Failed to parse message:', e); |
| | } |
| | }; |
| | |
| | ws.onerror = function(error) { |
| | console.error('WebSocket error:', error); |
| | displayMessage({ |
| | type: 'error', |
| | message: 'Connection error occurred', |
| | error: error.toString() |
| | }); |
| | }; |
| | |
| | ws.onclose = function() { |
| | console.log('WebSocket disconnected'); |
| | updateStatus('Disconnected'); |
| | document.getElementById('connectBtn').style.display = 'inline-block'; |
| | document.getElementById('disconnectBtn').style.display = 'none'; |
| | document.getElementById('connTime').textContent = 'Not connected'; |
| | }; |
| | } |
| | |
| | function disconnect() { |
| | if (ws) { |
| | ws.close(); |
| | ws = null; |
| | } |
| | } |
| | |
| | function updateStatus(status) { |
| | const statusEl = document.getElementById('status'); |
| | statusEl.textContent = status; |
| | statusEl.className = `status ${status.toLowerCase()}`; |
| | } |
| | |
| | function displayMessage(message) { |
| | const messagesDiv = document.getElementById('messages'); |
| | |
| | |
| | const emptyState = messagesDiv.querySelector('.empty-state'); |
| | if (emptyState) { |
| | emptyState.remove(); |
| | } |
| | |
| | |
| | const messageEl = document.createElement('div'); |
| | messageEl.className = 'message'; |
| | |
| | const type = message.type || 'unknown'; |
| | const timestamp = new Date().toLocaleTimeString(); |
| | |
| | messageEl.innerHTML = ` |
| | <div class="timestamp">${timestamp}</div> |
| | <div class="type ${type}">${type.replace('_', ' ')}</div> |
| | <pre>${JSON.stringify(message, null, 2)}</pre> |
| | `; |
| | |
| | messagesDiv.appendChild(messageEl); |
| | |
| | |
| | messagesDiv.scrollTop = messagesDiv.scrollHeight; |
| | |
| | |
| | while (messagesDiv.children.length > 50) { |
| | messagesDiv.removeChild(messagesDiv.firstChild); |
| | } |
| | } |
| | |
| | |
| | setInterval(() => { |
| | if (ws && ws.readyState === WebSocket.OPEN) { |
| | ws.send(JSON.stringify({ type: 'ping', timestamp: Date.now() })); |
| | } |
| | }, 30000); |
| | </script> |
| | </body> |
| | </html> |
| |
|
