Contents

#!/usr/bin/env ruby

require 'bundler'
Bundler.setup

require 'zipkin/tracer'

url = ENV['ZIPKIN_URL'] || 'http://localhost:9411'

tracer1 = Zipkin::Tracer.build(url: url, service_name: 'test-service')
tracer2 = Zipkin::Tracer.build(url: url, service_name: 'downstream-service')

rpc_span = tracer1.start_span(
  'receive request',
  tags: { 'span.kind' => 'server' }
)
sleep 0.1
rpc_span.log_kv(event: 'woop di doop', count: 5)
sleep 1

async_request_span = tracer1.start_span(
  'request async action',
  references: [
    OpenTracing::Reference.child_of(rpc_span.context)
  ],
  tags: { 'span.kind' => 'producer' }
)
sleep 0.1

async_request_span.finish
rpc_span.finish

sleep 0.5

async_span = tracer2.start_span(
  'async span started after rpc span',
  references: [
    OpenTracing::Reference.follows_from(async_request_span.context)
  ],
  tags: {
    'span.kind' => 'consumer',
    'peer.service' => 'downstream-service'
  }
)
sleep 0.3 # emulate network delay
async_span.finish

tracer1.stop
tracer2.stop

puts 'Finished'

Version data entries

4 entries across 4 versions & 1 rubygems

Version	Path
zipkin-1.6.0	script/create_follows_from_trace
zipkin-1.5.2	script/create_follows_from_trace
zipkin-1.5.1	script/create_follows_from_trace
zipkin-1.5.0	script/create_follows_from_trace