go-tracing

README

Playground for tracing in Golang

Relevant dependencies

• go 1.14

API and DB:

• github.com/gin-gonic/gin v1.6.3
• github.com/jmoiron/sqlx v1.2.0

Tracing implementation:

• go.opentelemetry.io/otel v0.14.0

Instrumentation for API and DB:

• go.opentelemetry.io/contrib/instrumentation/github.com/gin-gonic/gin/otelgin v0.14.0
• github.com/cspinetta/otsql v0.3.0-alpha-2

Exporter:

• go.opentelemetry.io/otel/exporters/trace/jaeger v0.14.0

Run docker compose

docker-compose up --build --force-recreate --no-deps -d

Example requests:

curl --request GET \
  --url http://localhost:8080/health-check

curl --request POST \
  --url http://localhost:8080/user \
  --header 'content-type: application/json' \
  --data '{
	"name": "Charles Darwin",
	"birthday": "1809-02-12"
}'

curl --request GET \
  --url http://localhost:8080/user/1

curl --request GET \
  --url 'http://localhost:8080/user?limit=100&offset=0'

Inspect traces on Jaeger UI

Open http://localhost:16686/

Screenshots

• List of traces:

• A trace:

• Details of a span: