Class: Krack::Router

Inherits:
Object
  • Object
show all
Defined in:
lib/krack/router.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(&block) ⇒ Router

Returns a new instance of Router.



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# File 'lib/krack/router.rb', line 5

def initialize(&block)
  @routes = []
  instance_eval(&block) if block
end

Instance Attribute Details

#routes ⇒ Object (readonly)

Returns the value of attribute routes.



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# File 'lib/krack/router.rb', line 3

def routes
  @routes
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/krack/router.rb', line 10

def call(env)
  @routes.each do |verb, route, app|
    next unless verb == env["REQUEST_METHOD"]
    next unless match = env["PATH_INFO"].match(route)

    env["krack.params"] = Hash[match.names.zip(match.captures)]
    return app.call(env)
  end
  not_found
end

#map(verb, route, to) ⇒ Object 



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# File 'lib/krack/router.rb', line 31

def map(verb, route, to)
  # Converts route params to regex named groups, like so:
  # "/deals/:id" -> "/deals/(?<id>\w+)"
  route.gsub!(/:\w+/) { |param| "(?<#{param[1..-1]}>\\w+)" }

  # Allow optional trailing slash, add start/end tokens
  route = "\\A#{route}\\/?\\z"

  @routes << [verb, Regexp.new(route), to]
end

#not_found ⇒ Object 



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# File 'lib/krack/router.rb', line 21

def not_found
  [404, {"Content-Type" => "text/plain"}, ["Not found"]]
end