node-dogstatsd

const StatsD = require('node-dogstatsd').StatsD; // Initialize the client with your Datadog agent host and port // Replace '127.0.0.1' with your Datadog agent's IP or hostname // Standard StatsD port is 8125 const c = new StatsD('127.0.0.1', 8125); // Basic increment and decrement operations c.increment('node_test.requests_total'); c.incrementBy('node_test.requests_total', 5); c.decrement('node_test.active_users'); // Record a timing metric (e.g., latency in milliseconds) c.timing('node_test.api_response_time', 250); // 250 ms // Record a histogram metric (Datadog-specific) // Useful for percentile aggregation c.histogram('node_test.data_processing_size', 1024); // Size in bytes // Increment a metric with a specific tag (Datadog-specific) c.increment('node_test.event_count', 1, ['environment:production', 'feature:login']); // Listen for socket errors (recommended for robustness) c.socket.on('error', function (exception) { console.error("Error event in socket.send(): " + exception.message); // Implement proper error handling here, e.g., logging to a file or an error tracking service }); console.log("Datadog metrics sent successfully (check your Datadog agent logs for verification)."); // In a real application, metrics would typically be sent throughout the application's lifecycle.