otel

GoVisual OpenTelemetry Example

This example demonstrates GoVisual integration with OpenTelemetry.

Prerequisites

• Docker and Docker Compose for running Jaeger

Setup

1. Start Jaeger:

docker-compose up -d

1. Run the example:

go run main.go

This will start a server on port 8080 with OpenTelemetry instrumentation enabled.

Endpoints

• / - Home page with links to API endpoints
• /api/users - Returns user data with nested spans
• /api/search?q=test - Search endpoint with query parameter as a span attribute
• /api/health - Health check endpoint (not traced due to ignore path)

Accessing the Dashboards

• GoVisual Dashboard: http://localhost:8080/__viz
• Jaeger UI: http://localhost:16686

Features Demonstrated

• GoVisual integration with OpenTelemetry
• Creating custom spans and nested spans
• Adding attributes to spans
• Path-based span filtering
• Viewing traces in Jaeger
• Correlating requests between GoVisual and Jaeger