tracing-opentelemetry

Optional OpenTelemetry bridge for tracing.cr.

Installation

Install with the compatible tracing.cr release selected by your application:

dependencies:
  tracing:
    github: dsisnero/tracing.cr
    branch: main
  tracing-opentelemetry:
    github: dsisnero/tracing-opentelemetry

For local sibling checkout development, switch those entries back to path: dependencies.

Usage

require "tracing"
require "tracing-opentelemetry"

exporter = OpenTelemetry::Exporter.new(:io, io: STDOUT)
provider = OpenTelemetry::TraceProvider.new(
  service_name: "my_app",
  exporter: exporter
)

Tracing::Registry.default
  .with(Tracing::OpenTelemetryLayer.new(provider))
  .init

span!(Tracing::Level::INFO, "request").in_scope do
  info!("request.started")
end

Shipped Surface

• Tracing::OpenTelemetryLayer
• OTel span export on close
• contextual event export
• span kind/status/name mapping from tracing fields
• optional current fiber trace/span activation