Class: Datadog::Profiling::Transport::HTTP::API::Endpoint

Inherits:
Transport::HTTP::API::Endpoint show all
Includes:
Ext::Profiling::Transport::HTTP
Defined in:
lib/ddtrace/profiling/transport/http/api/endpoint.rb

Overview

Datadog API endpoint for profiling

Constant Summary

Constants included from Ext::Profiling::Transport::HTTP

Ext::Profiling::Transport::HTTP::FORM_FIELD_FAMILY, Ext::Profiling::Transport::HTTP::FORM_FIELD_INTAKE_VERSION, Ext::Profiling::Transport::HTTP::FORM_FIELD_PPROF_DATA, Ext::Profiling::Transport::HTTP::FORM_FIELD_RECORDING_END, Ext::Profiling::Transport::HTTP::FORM_FIELD_RECORDING_START, Ext::Profiling::Transport::HTTP::FORM_FIELD_TAGS, Ext::Profiling::Transport::HTTP::FORM_FIELD_TAG_ENV, Ext::Profiling::Transport::HTTP::FORM_FIELD_TAG_HOST, Ext::Profiling::Transport::HTTP::FORM_FIELD_TAG_LANGUAGE, Ext::Profiling::Transport::HTTP::FORM_FIELD_TAG_PID, Ext::Profiling::Transport::HTTP::FORM_FIELD_TAG_PROFILER_VERSION, Ext::Profiling::Transport::HTTP::FORM_FIELD_TAG_RUNTIME, Ext::Profiling::Transport::HTTP::FORM_FIELD_TAG_RUNTIME_ENGINE, Ext::Profiling::Transport::HTTP::FORM_FIELD_TAG_RUNTIME_ID, Ext::Profiling::Transport::HTTP::FORM_FIELD_TAG_RUNTIME_PLATFORM, Ext::Profiling::Transport::HTTP::FORM_FIELD_TAG_RUNTIME_VERSION, Ext::Profiling::Transport::HTTP::FORM_FIELD_TAG_SERVICE, Ext::Profiling::Transport::HTTP::FORM_FIELD_TAG_VERSION, Ext::Profiling::Transport::HTTP::HEADER_CONTENT_TYPE, Ext::Profiling::Transport::HTTP::HEADER_CONTENT_TYPE_OCTET_STREAM, Ext::Profiling::Transport::HTTP::PPROF_DEFAULT_FILENAME, Ext::Profiling::Transport::HTTP::URI_TEMPLATE_DD_API

Instance Attribute Summary collapse

Attributes inherited from Transport::HTTP::API::Endpoint

#path, #verb

Instance Method Summary collapse

Constructor Details

#initialize(path, encoder) ⇒ Endpoint

Returns a new instance of Endpoint.



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# File 'lib/ddtrace/profiling/transport/http/api/endpoint.rb', line 26

def initialize(path, encoder)
  super(:post, path)
  @encoder = encoder
end

Instance Attribute Details

#encoder ⇒ Object (readonly)

Returns the value of attribute encoder.



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# File 'lib/ddtrace/profiling/transport/http/api/endpoint.rb', line 23

def encoder
  @encoder
end

Instance Method Details

#build_form(env) ⇒ Object 



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# File 'lib/ddtrace/profiling/transport/http/api/endpoint.rb', line 42

def build_form(env)
  flush = env.request.parcel.data
  pprof_file = build_pprof(flush)

  form = {
    FORM_FIELD_INTAKE_VERSION => '3', # Aka 1.3 intake format
    FORM_FIELD_RECORDING_START => flush.start.utc.iso8601,
    FORM_FIELD_RECORDING_END => flush.finish.utc.iso8601,
    FORM_FIELD_TAGS => [
      "#{FORM_FIELD_TAG_RUNTIME}:#{flush.language}",
      "#{FORM_FIELD_TAG_RUNTIME_ID}:#{flush.runtime_id}",
      "#{FORM_FIELD_TAG_RUNTIME_ENGINE}:#{flush.runtime_engine}",
      "#{FORM_FIELD_TAG_RUNTIME_PLATFORM}:#{flush.runtime_platform}",
      "#{FORM_FIELD_TAG_RUNTIME_VERSION}:#{flush.runtime_version}",
      "#{FORM_FIELD_TAG_PID}:#{Process.pid}",
      "#{FORM_FIELD_TAG_PROFILER_VERSION}:#{flush.profiler_version}",
      # NOTE: Redundant w/ 'runtime'; may want to remove this later.
      "#{FORM_FIELD_TAG_LANGUAGE}:#{flush.language}",
      "#{FORM_FIELD_TAG_HOST}:#{flush.host}",
      *flush
        .tags
        .reject { |tag_key| TAGS_TO_IGNORE_IN_TAGS_HASH.include?(tag_key) }
        .map { |tag_key, tag_value| "#{tag_key}:#{tag_value}" }
    ],
    FORM_FIELD_PPROF_DATA => pprof_file,
    FORM_FIELD_FAMILY => flush.language,
  }

  # Optional fields
  form[FORM_FIELD_TAGS] << "#{FORM_FIELD_TAG_SERVICE}:#{flush.service}" unless flush.service.nil?
  form[FORM_FIELD_TAGS] << "#{FORM_FIELD_TAG_ENV}:#{flush.env}" unless flush.env.nil?
  form[FORM_FIELD_TAGS] << "#{FORM_FIELD_TAG_VERSION}:#{flush.version}" unless flush.version.nil?

  form
end

#build_pprof(flush) ⇒ Object 



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# File 'lib/ddtrace/profiling/transport/http/api/endpoint.rb', line 78

def build_pprof(flush)
  pprof = encoder.encode(flush)

  gzipped_pprof_data = Datadog::Utils::Compression.gzip(pprof.data)

  Datadog::Vendor::Multipart::Post::UploadIO.new(
    StringIO.new(gzipped_pprof_data),
    HEADER_CONTENT_TYPE_OCTET_STREAM,
    PPROF_DEFAULT_FILENAME
  )
end

#call(env, &block) ⇒ Object 



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# File 'lib/ddtrace/profiling/transport/http/api/endpoint.rb', line 31

def call(env, &block)
  # Build request
  env.form = build_form(env)

  # Send request
  http_response = super(env, &block)

  # Build response
  Profiling::Transport::HTTP::Response.new(http_response)
end