104 líneas
2.8 KiB
JavaScript
104 líneas
2.8 KiB
JavaScript
#!/usr/bin/env node
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/**
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* Example: Monitoring system metrics in real-time using SSE
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*/
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const EventSource = require('eventsource');
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const SSE_URL = 'http://localhost:3000/mcp/sse';
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const API_URL = 'http://localhost:3000';
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// Connect to SSE endpoint
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const eventSource = new EventSource(SSE_URL);
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eventSource.onopen = () => {
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console.log('Connected to MCP ProcFS Server\n');
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startMonitoring();
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};
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eventSource.addEventListener('connected', (event) => {
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const data = JSON.parse(event.data);
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console.log('Connection confirmed:', data.clientId);
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});
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eventSource.onerror = (error) => {
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console.error('SSE Error:', error);
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};
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async function fetchMetric(endpoint) {
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try {
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const response = await fetch(`${API_URL}${endpoint}`);
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const data = await response.json();
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return data.data;
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} catch (error) {
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console.error(`Error fetching ${endpoint}:`, error.message);
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return null;
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}
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}
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async function displayMetrics() {
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console.clear();
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console.log('=== System Monitoring Dashboard ===\n');
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// CPU Info
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const cpu = await fetchMetric('/api/cpu');
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if (cpu) {
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console.log('CPU:');
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console.log(` Model: ${cpu.model}`);
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console.log(` Cores: ${cpu.cores}`);
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console.log(` Speed: ${cpu.mhz.toFixed(2)} MHz`);
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}
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console.log();
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// Memory Info
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const mem = await fetchMetric('/api/memory');
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if (mem) {
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const usedPercent = ((mem.total - mem.available) / mem.total * 100).toFixed(1);
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console.log('Memory:');
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console.log(` Total: ${(mem.total / 1024 / 1024).toFixed(2)} GB`);
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console.log(` Available: ${(mem.available / 1024 / 1024).toFixed(2)} GB`);
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console.log(` Used: ${usedPercent}%`);
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}
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console.log();
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// Load Average
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const load = await fetchMetric('/api/load');
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if (load) {
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console.log('Load Average:');
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console.log(` 1min: ${load.one.toFixed(2)}`);
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console.log(` 5min: ${load.five.toFixed(2)}`);
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console.log(` 15min: ${load.fifteen.toFixed(2)}`);
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console.log(` Processes: ${load.runningProcesses}/${load.totalProcesses}`);
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}
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console.log();
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// Network Stats
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const net = await fetchMetric('/api/network');
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if (net && net.length > 0) {
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console.log('Network Interfaces:');
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net.slice(0, 3).forEach(iface => {
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console.log(` ${iface.interface}:`);
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console.log(` RX: ${(iface.rxBytes / 1024 / 1024).toFixed(2)} MB | TX: ${(iface.txBytes / 1024 / 1024).toFixed(2)} MB`);
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});
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}
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console.log();
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console.log('Press Ctrl+C to exit');
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console.log(`Last update: ${new Date().toLocaleTimeString()}`);
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}
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function startMonitoring() {
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// Initial display
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displayMetrics();
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// Update every 2 seconds
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setInterval(displayMetrics, 2000);
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}
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// Handle cleanup
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process.on('SIGINT', () => {
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console.log('\nClosing connection...');
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eventSource.close();
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process.exit(0);
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});
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