Metrics

HTTP RED Metrics (OpenTelemetry)

Metric	Type	Labels
shop.http.requests.total	Counter	route, method, status_code
shop.http.request.duration	Histogram	route, method
shop.http.requests.in_flight	UpDownCounter	route, method

Business Metrics

Metric	Type	Description
shop.business.orders.created	Counter	Orders placed
shop.business.order.value	Histogram	Order total (USD)
shop.business.cart.additions	Counter	Items added to cart
shop.business.checkout.total	Counter	Checkout attempts
shop.business.checkout.failures	Counter	Failed checkouts
shop.business.auth.login	Counter	Successful logins
shop.business.security.events	Counter	Security events detected
shop.business.crm.sync	Counter	CRM sync operations

OCI Monitoring Custom Metrics

Published every 60 seconds to OCI Monitoring namespace octo_drone_shop:

Metric	Unit	Description
app.health	count	1 = healthy, 0 = unhealthy
app.uptime_seconds	seconds	Process uptime
app.requests.rate	count	Requests per interval
app.errors.rate	count	5xx errors per interval
app.checkout.count	count	Checkouts per interval
app.orders.count	count	Orders per interval
app.db.latency_ms	milliseconds	Last readiness check round-trip
app.crm.sync_age_s	seconds	Seconds since last CRM sync
app.inventory.low_stock_products	count	Products with stock < 10

Prometheus Endpoint

GET /metrics
Content-Type: text/plain

Scrape-compatible with Grafana, Prometheus, or any OpenMetrics-compatible collector.