gem 'lightstep'

$ bundle

$ gem install lightstep

require 'lightstep'

# Initialize the singleton tracer
LightStep.configure(component_name: 'lightstep/ruby/example', access_token: 'your_access_token')

# Specify a propagation format (options are :lightstep (default) and :b3)
LightStep.configure(component_name: 'lightstep/ruby/example', access_token: 'your_access_token', propagator: :b3)

# Create a basic span and attach a log to the span
span = LightStep.start_span('my_span')
span.log(event: 'hello world', count: 42)

# Create a child span (and add some artificial delays to illustrate the timing)
sleep(0.1)
child = LightStep.start_span('my_child', child_of: span.span_context)
sleep(0.2)
child.finish
sleep(0.1)
span.finish