- Go
- OpenTelemetry
- Zipkin
- Jaeger
- Prometheus
- Grafana
- Docker
Multi-service architecture illustrating end-to-end distributed observability in Go. The system receives a Brazilian postal code (CEP), validates it, resolves geographic location, and queries real-time weather metrics, tracking the entire execution flow across network boundaries:
- Service A (Ingestion & Validation): Validates incoming request payloads (8-digit postal codes) and propagates OTEL trace context over HTTP
- Service B (Orchestration & Transformation): Consumes external APIs (ViaCEP and WeatherAPI), converts temperatures (Celsius, Fahrenheit, Kelvin), and instruments granular spans for external HTTP calls
- Telemetry Pipeline: OpenTelemetry Collector exporting spans and metrics to Zipkin, Jaeger, and Prometheus
- Visualization: Grafana dashboards for metrics and trace timeline inspection, fully orchestrated via Docker Compose
