Sinatra Example for TraceView Heroku Add-on

app.rb

require 'sinatra'

get '/' do
  "Hello, world"
end

config.ru

require './app'
require 'oboe-heroku'

# When traces should be initiated for incoming requests. Valid options are
# "always", "through" (when the request is initiated with a tracing header
# from upstream) and "never". You must set this directive to "always" in
# order to initiate tracing.
Oboe::Config[:tracing_mode] = 'through'

# You can remove the following line in production to allow for
# auto sampling or managing the sample rate through the TraceView portal.
# Oboe::Config[:sample_rate] = 1000000

# You may want to replace the Oboe.logger with whichever logger you are using
# Oboe.logger = Sinatra.logger

run Sinatra::Application

Gemfile

source "https://rubygems.org"

ruby "2.0.0"

gem 'sinatra'

group :production, :staging do
  gem 'oboe-heroku', '~> 0.9.10.0'
end

Gemfile.lock

GEM
  remote: https://rubygems.org/
  remote: https://g6Jwqo2mSudE5JFfSDim@gem.fury.io/pglombardo/
  specs:
    json (1.8.1)
    oboe (2.6.2.0)
      json
    oboe-heroku (0.9.10.0)
      oboe (>= 2.6.2.0)
    rack (1.5.2)
    rack-protection (1.5.1)
      rack
    sinatra (1.4.4)
      rack (~> 1.4)
      rack-protection (~> 1.4)
      tilt (~> 1.3, >= 1.3.4)
    tilt (1.4.1)

PLATFORMS
  ruby

DEPENDENCIES
  oboe-heroku (= 0.9.10.0)
  sinatra

Procfile

web: bundle exec rackup config.ru -p $PORT

Note: Oboe::Config[:tracing_mode] = 'through' seemed to prevent initial tracing