Sentry Crash Free Rate Calcuration

crashfree.rb

# An example for calculation of the crash free rate with Sentry.
# This example calculates the crash free rate yesterday.

require 'json'
require 'net/http'
require 'uri'

# Set your API Token
# https://sentry.io/api/
SENTRY_API_TOKEN = 'xxx'

# Sentry Organization Slug
SENTRY_ORG = 'your-organization'

# Sentry Project Slug
SENTRY_PRJ = 'your-project'

# Set your DAU (via an other system e.g. Google Analytics)
DAU = 100.0

uri = URI.parse("https://sentry.io/api/0/projects/#{SENTRY_ORG}/#{SENTRY_PRJ}/issues/?statsPeriod=14d")
request = Net::HTTP::Get.new(uri)
request.content_type = 'application/json'
request["Authorization"] = "Bearer #{SENTRY_API_TOKEN}"

req_options = {
  use_ssl: uri.scheme == 'https',
}

response = Net::HTTP.start(uri.hostname, uri.port, req_options) do |http|
  http.request(request)
end

json = JSON.parse(response.body)

time = Time.now - 60 * 60 * 24 * 1
start_of_yesterday = Time.local( time.year, time.month, time.day, 0, 0, 0)
end_of_yesterday = Time.local( time.year, time.month, time.day, 23, 59, 59)

total_crashes = 0

json.each do |issue|
    issue['stats']['14d'].each do |stat|
        if stat[1] > 0 &&
            Time.at(stat[0]) >= start_of_yesterday &&
            Time.at(stat[0]) <= end_of_yesterday
            total_crashes += stat[1]
        end
    end
end

crash_free_rate = (1 - (total_crashes / DAU)) * 100.0

p total_crashes   # Yesterday's Total Crash
p crash_free_rate # Yesterday's Crash Free Rate