Backend Metrics and Observability

This skill adds OpenTelemetry metrics to track HTTP requests and response times.

Overview

OpenTelemetry provides vendor-neutral observability. This setup tracks:

• Total HTTP requests (counter)
• Response time distribution (histogram)

Installation

npm install @opentelemetry/api @opentelemetry/sdk-node @opentelemetry/sdk-metrics @opentelemetry/exporter-metrics-otlp-grpc

Implementation

Step 1: Create Metrics Library