02 · Avance Proyecto

Generar tráfico

1. Create Inventory

curl -i \
  -X POST http://localhost:3000/inventory \
  -H "Content-Type: application/json" \
  -d '{"sku":"ABC-1234-AB","qty":10}'

2. Get Inventory

curl -i http://localhost:3000/inventory/ABC-1234-AB

3. Reserve Quantity

curl -i -X POST http://localhost:3000/inventory/ABC-1234-AB/reserve \
  -H "Content-Type: application/json" \
  -d '{"qty":5,"orderId":"order-001"}'

4. Release Quantity

curl -i -X POST http://localhost:3000/inventory/ABC-1234-AB/release \
  -H "Content-Type: application/json" \
  -d '{"qty":3,"orderId":"order-001"}'

5. Replenish Inventory

curl -i -X POST http://localhost:3000/inventory/ABC-1234-AB/replenish \
  -H "Content-Type: application/json" \
  -d '{"qty":20}'

Posibles Gráficas de Dashboards:

1. Service Health & Traffic Overview

• Panels & PromQL

  • Total RPS

    sum(rate(http_server_requests_total[1m]))

  • Latency P95 / P99

    histogram_quantile(0.95, sum(rate(http_server_request_duration_seconds_bucket[5m])) by (le))
    histogram_quantile(0.99, sum(rate(http_server_request_duration_seconds_bucket[5m])) by (le))

  • Error Rate (%)

    100 * sum(rate(http_server_requests_errors_total[1m])) / sum(rate(http_server_requests_total[1m]))

2. HTTP Endpoint Performance

• Variable: $route (set via Dashboard settings → Variables → New → Label “route” with query label_values(http_server_request_duration_seconds_bucket, route))

• Panels (templated by $route)

  • RPS by route

    sum by(route)(rate(http_server_requests_total{route="$route"}[1m]))

  • P99 latency by route

    histogram_quantile(0.99, sum(rate(http_server_request_duration_seconds_bucket{route="$route"}[5m])) by (le,route))

3. Database Query Metrics

• Panels

  • DB QPS

    sum(rate(prisma_query_duration_seconds_count[1m]))

  • Slow Queries P95

    histogram_quantile(0.95, sum(rate(prisma_query_duration_seconds_bucket[5m])) by (le))

  • Connection Pool Usage (if instrumented)

    prisma_pool_active_connections

4. RabbitMQ Messaging Health

• Panels

  • Messages Published/sec

    sum(rate(rabbitmq_channel_messages_published_total[1m]))

  • Queue Depth (per queue)

    rabbitmq_queue_messages_ready{queue=~".*"}

  • Consumer Ack Rate

    sum(rate(rabbitmq_channel_messages_ack_total[1m]))

5. End-to-End Trace Explorer

• Setup: Install the Tempo (or Jaeger) data source plugin

• Panels:

  • Service Map (built-in)

  • Recent Traces Table: link traces to slow requests

6. Error & Exception Breakdown

• Panels

  • Top Exceptions

    topk(10, sum by(exception)(rate(process_exceptions_total[1m])))

  • 5xx Rate

    sum(rate(http_server_responses_total{code=~"5.."}[1m]))

7. Resource Utilization

• Panels

  • CPU (%)

    rate(process_cpu_seconds_total[1m]) * 100

  • Memory RSS

    process_resident_memory_bytes

  • Event-Loop Lag (if instrumented)

    nodejs_eventloop_lag_seconds

8. Business-Event Metrics

• Panels

  • Replenish Events/sec

    sum(rate(app_event_ProductInventoryReplenished_total[1m]))

  • Reserve Events/sec

    sum(rate(app_event_ProductInventoryReserved_total[1m]))

  • Replenish / Reserve Ratio

    sum(rate(app_event_ProductInventoryReplenished_total[1m]))
    /
    sum(rate(app_event_ProductInventoryReserved_total[1m]))