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# frozen_string_literal: true
require 'grape/util/lazy_object'
module Grape
class Request < Rack::Request
HTTP_PREFIX = 'HTTP_'
alias rack_params params
def initialize(env, options = {})
extend options[:build_params_with] || Grape.config.param_builder
super(env)
end
def params
@params ||= build_params
end
def headers
@headers ||= build_headers
end
private
def grape_routing_args
args = env[Grape::Env::GRAPE_ROUTING_ARGS].dup
# preserve version from query string parameters
args.delete(:version)
args.delete(:route_info)
args
end
def build_headers
Grape::Util::LazyObject.new do
env.each_pair.with_object({}) do |(k, v), headers|
next unless k.to_s.start_with? HTTP_PREFIX
transformed_header = Grape::Http::Headers::HTTP_HEADERS[k] || transform_header(k)
headers[transformed_header] = v
end
end
end
def transform_header(header)
-header[5..-1].split('_').each(&:capitalize!).join('-')
end
end
end
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