Class: Faraday::Middleware::Escher::RequestSigner

Inherits:
Base
  • Object
show all
Defined in:
lib/faraday/middleware/escher/request_signer.rb

Instance Method Summary collapse

Constructor Details

#initialize(app, options = {}, &active_key) ⇒ RequestSigner

Returns a new instance of RequestSigner.



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# File 'lib/faraday/middleware/escher/request_signer.rb', line 4

def initialize(app, options={}, &active_key)

  super(app, options)

  active_key_cons = active_key || options[:active_key] || options[:key]
  raise('Escher active key constructor must be a lambda/block') unless active_key_cons.is_a?(Proc)
  @escher_active_key_constructor = active_key_cons

end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/faraday/middleware/escher/request_signer.rb', line 14

def call(env)

  escher = ::Escher::Auth.new(@escher_credential_scope, @escher_options)

  uri_path = env[:url].path
  endpoint = uri_path.empty? ? '/' : uri_path
  endpoint_with_query = [endpoint, env[:url].query].join('?')

  request_headers = Hash[env[:request_headers].map { |k, v| [k.to_s.downcase, v] }]
  request_headers['host'] ||= @host || env[:url].host

  request_data = {
      uri: endpoint_with_query,
      method: env[:method].to_s.upcase,
      headers: request_headers.to_a
  }

  request_data[:body]= env[:body] unless env[:body].nil?

  escher.sign!(
      request_data,
      @escher_active_key_constructor.call,
      request_data[:headers].map { |ary| ary[0] }
  )

  env[:request_headers].merge!(request_data[:headers])

  return @app.call(env)

end