@hemantwasthere/monitoring-sdk/dist/middleware/express.js

Centralized monitoring SDK for Node.js applications with Prometheus, Loki, and Grafana integration

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.expressMetricsMiddleware = expressMetricsMiddleware;
const metrics_1 = require("../metrics");
function expressMetricsMiddleware() {
    const metricsService = metrics_1.MetricsService.getInstance();
    return (req, res, next) => {
        const startTime = Date.now();
        const originalSend = res.send;
        res.send = function (body) {
            const duration = Date.now() - startTime;
            const route = req.route?.path || req.path;
            metricsService.recordHttpRequest(req.method, route, res.statusCode, duration);
            return originalSend.call(this, body);
        };
        next();
    };
}