Module: Datadog::Tracing::Contrib::Rack::Header

Defined in:
lib/datadog/tracing/contrib/rack/header_collection.rb

Overview

Classes and utilities for handling headers in Rack.

Defined Under Namespace

Classes: RequestHeaderCollection

Class Method Summary collapse

Class Method Details

.to_rack_header(name) ⇒ Object 



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# File 'lib/datadog/tracing/contrib/rack/header_collection.rb', line 33

def self.to_rack_header(name)
  key = name.to_s.upcase.gsub(/[-\s]/, '_')
  case key
  when 'CONTENT_TYPE', 'CONTENT_LENGTH'
    # NOTE: The Rack spec says:
    # > The environment must not contain the keys HTTP_CONTENT_TYPE or HTTP_CONTENT_LENGTH
    # > (use the versions without HTTP_).
    # See https://github.com/rack/rack/blob/e217a399eb116362710aac7c5b8dc691ea2189b3/SPEC.rdoc?plain=1#L119-L121
    key
  else
    "HTTP_#{key}"
  end
end