Class: Dandy::Request

Inherits:
Object
  • Object
show all
Includes:
Hypo::Scope
Defined in:
lib/dandy/request.rb

Instance Method Summary collapse

Constructor Details

#initialize(route_matcher, container, chain_factory, view_factory) ⇒ Request

Returns a new instance of Request.



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# File 'lib/dandy/request.rb', line 12

def initialize(route_matcher, container, chain_factory, view_factory)
  @container = container
  @route_matcher = route_matcher
  @chain_factory = chain_factory
  @view_factory = view_factory
end

Instance Method Details

#handle(rack_env) ⇒ Object 



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# File 'lib/dandy/request.rb', line 19

def handle(rack_env)
  create_scope

  path = rack_env['PATH_INFO']
  request_method = rack_env['REQUEST_METHOD']
  match = @route_matcher.match(path, request_method)

  headers = Hash[
    *rack_env.select {|k, v| k.start_with? 'HTTP_'}
       .collect {|k, v| [k.sub(/^HTTP_/, ''), v]}
       .collect {|k, v| [k.split('_').collect(&:capitalize).join('-'), v]}
       .flatten
  ]
  register_params(headers, :dandy_headers)

  if match.nil?
    result = [404, {'Content-Type' => headers['Accept']}, []]
  else
    query = Rack::Utils.parse_nested_query(rack_env['QUERY_STRING']).to_snake_keys.symbolize_keys
    register_params(query, :dandy_query)

    data = rack_env['rack.parser.result'] ? rack_env['rack.parser.result'].to_snake_keys.deep_symbolize_keys! : nil
    register_params(data, :dandy_data)

    chain = @chain_factory.create(match)
    chain_result = chain.execute

    if match.route.view
      body = @view_factory.create(match.route.view, headers['Accept'], {keys_format: headers['Keys-Format'] || 'snake'})
    else
      if chain_result.is_a?(String)
        body = chain_result
      else # generate JSON when nothing other is requested
        if headers['Keys-Format'] == 'camel' && chain_result.is_a?(Hash)
          chain_result = chain_result.to_camelback_keys
        end

        body = JSON.generate(chain_result)
      end
    end

    status = @container.resolve(:dandy_status)
    result = [status, {'Content-Type' => headers['Accept']}, [body]]
  end

  release

  result
end