Function performanceMiddleware

performanceMiddleware(
monitor: PerformanceMonitor,
): (_req: any, res: any, next: any) => void
Express middleware factory for automatic HTTP request performance tracking.

Creates middleware that automatically measures response times and tracks error rates for all HTTP requests. Integrates seamlessly with Express applications and requires no manual instrumentation. The middleware is non-blocking and adds minimal overhead to request processing.
Parameters
- monitor: PerformanceMonitor
  Performance monitor instance to track metrics
Returns (_req: any, res: any, next: any) => void
Express middleware function for automatic request tracking
Example
```
// Basic usage with singleton monitor
import { performanceMiddleware, performanceMonitor } from '@/shared/utils/performance';
app.use(performanceMiddleware(performanceMonitor));
```
Example
```
// Usage with custom monitor instance
const customMonitor = new PerformanceMonitor();
app.use(performanceMiddleware(customMonitor));
```
Example
```
// Conditional usage (skip in test environment)
if (process.env.NODE_ENV !== 'test') {
  app.use(performanceMiddleware(performanceMonitor));
}
```
- Defined in src/shared/utils/performance.ts:418