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added verb for filters and minor improvements

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This commit is contained in:
Joris Moriau 2016-02-16 21:07:58 +01:00
parent 62e9170baf
commit c5201f01ad
13 changed files with 259 additions and 92 deletions
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8
spec/context_spec.cr
View file

@ -2,7 +2,7 @@ require "./spec_helper"
describe "Context" do
it "has a default content type" do
kemal = Kemal::RouteHandler.new
kemal = Kemal::RouteHandler::INSTANCE
kemal.add_route "GET", "/" do |env|
"Hello"
end
@ -13,7 +13,7 @@ describe "Context" do
end
it "sets content type" do
kemal = Kemal::RouteHandler.new
kemal = Kemal::RouteHandler::INSTANCE
kemal.add_route "GET", "/" do |env|
env.response.content_type = "application/json"
"Hello"
@ -25,7 +25,7 @@ describe "Context" do
end
it "parses headers" do
kemal = Kemal::RouteHandler.new
kemal = Kemal::RouteHandler::INSTANCE
kemal.add_route "GET", "/" do |env|
name = env.request.headers["name"]
"Hello #{name}"
@ -39,7 +39,7 @@ describe "Context" do
end
it "sets response headers" do
kemal = Kemal::RouteHandler.new
kemal = Kemal::RouteHandler::INSTANCE
kemal.add_route "GET", "/" do |env|
env.response.headers.add "Accept-Language", "tr"
end

134
spec/middleware/filters_spec.cr
View file

@ -5,19 +5,145 @@ describe "Kemal::Middleware::Filters" do
test_filter = FilterTest.new
test_filter.modified = "false"
filter = Kemal::Middleware::Filter.new
filter.add :before, "/greetings", {} of Symbol => String { test_filter.modified = "true" }
filter_middleware = Kemal::Middleware::Filter.new
filter_middleware._add_route_filter("GET", "/greetings", :before) { test_filter.modified = "true" }
kemal = Kemal::RouteHandler.new
kemal = Kemal::RouteHandler::INSTANCE
kemal.add_route "GET", "/greetings" { test_filter.modified }
test_filter.modified.should eq("false")
request = HTTP::Request.new("GET", "/greetings")
create_request_and_return_io(filter, request)
create_request_and_return_io(filter_middleware, request)
io_with_context = create_request_and_return_io(kemal, request)
client_response = HTTP::Client::Response.from_io(io_with_context, decompress: false)
client_response.body.should eq("true")
end
it "executes code before GET home request but not POST home request" do
test_filter = FilterTest.new
test_filter.modified = "false"
filter_middleware = Kemal::Middleware::Filter.new
filter_middleware._add_route_filter("GET", "/greetings", :before) { test_filter.modified = test_filter.modified == "true" ? "false" : "true" }
kemal = Kemal::RouteHandler::INSTANCE
kemal.add_route "GET", "/greetings" { test_filter.modified }
kemal.add_route "POST", "/greetings" { test_filter.modified }
test_filter.modified.should eq("false")
request = HTTP::Request.new("GET", "/greetings")
create_request_and_return_io(filter_middleware, request)
io_with_context = create_request_and_return_io(kemal, request)
client_response = HTTP::Client::Response.from_io(io_with_context, decompress: false)
client_response.body.should eq("true")
request = HTTP::Request.new("POST", "/greetings")
create_request_and_return_io(filter_middleware, request)
io_with_context = create_request_and_return_io(kemal, request)
client_response = HTTP::Client::Response.from_io(io_with_context, decompress: false)
client_response.body.should eq("true")
end
it "executes code before all GET/POST home request" do
test_filter = FilterTest.new
test_filter.modified = "false"
filter_middleware = Kemal::Middleware::Filter.new
filter_middleware._add_route_filter("ALL", "/greetings", :before) { test_filter.modified = test_filter.modified == "true" ? "false" : "true" }
filter_middleware._add_route_filter("GET", "/greetings", :before) { test_filter.modified = test_filter.modified == "true" ? "false" : "true" }
filter_middleware._add_route_filter("POST", "/greetings", :before) { test_filter.modified = test_filter.modified == "true" ? "false" : "true" }
kemal = Kemal::RouteHandler::INSTANCE
kemal.add_route "GET", "/greetings" { test_filter.modified }
kemal.add_route "POST", "/greetings" { test_filter.modified }
test_filter.modified.should eq("false")
request = HTTP::Request.new("GET", "/greetings")
create_request_and_return_io(filter_middleware, request)
io_with_context = create_request_and_return_io(kemal, request)
client_response = HTTP::Client::Response.from_io(io_with_context, decompress: false)
client_response.body.should eq("false")
request = HTTP::Request.new("POST", "/greetings")
create_request_and_return_io(filter_middleware, request)
io_with_context = create_request_and_return_io(kemal, request)
client_response = HTTP::Client::Response.from_io(io_with_context, decompress: false)
client_response.body.should eq("false")
end
it "executes code after home request" do
test_filter = FilterTest.new
test_filter.modified = "false"
filter_middleware = Kemal::Middleware::Filter.new
filter_middleware._add_route_filter("GET", "/greetings", :after) { test_filter.modified = "true" }
kemal = Kemal::RouteHandler::INSTANCE
kemal.add_route "GET", "/greetings" { test_filter.modified }
test_filter.modified.should eq("false")
request = HTTP::Request.new("GET", "/greetings")
create_request_and_return_io(filter_middleware, request)
io_with_context = create_request_and_return_io(kemal, request)
client_response = HTTP::Client::Response.from_io(io_with_context, decompress: false)
client_response.body.should eq("true")
end
it "executes code after GET home request but not POST home request" do
test_filter = FilterTest.new
test_filter.modified = "false"
filter_middleware = Kemal::Middleware::Filter.new
filter_middleware._add_route_filter("GET", "/greetings", :after) { test_filter.modified = test_filter.modified == "true" ? "false" : "true" }
kemal = Kemal::RouteHandler::INSTANCE
kemal.add_route "GET", "/greetings" { test_filter.modified }
kemal.add_route "POST", "/greetings" { test_filter.modified }
test_filter.modified.should eq("false")
request = HTTP::Request.new("GET", "/greetings")
create_request_and_return_io(filter_middleware, request)
io_with_context = create_request_and_return_io(kemal, request)
client_response = HTTP::Client::Response.from_io(io_with_context, decompress: false)
client_response.body.should eq("true")
request = HTTP::Request.new("POST", "/greetings")
create_request_and_return_io(filter_middleware, request)
io_with_context = create_request_and_return_io(kemal, request)
client_response = HTTP::Client::Response.from_io(io_with_context, decompress: false)
client_response.body.should eq("true")
end
it "executes code after all GET/POST home request" do
test_filter = FilterTest.new
test_filter.modified = "false"
filter_middleware = Kemal::Middleware::Filter.new
filter_middleware._add_route_filter("ALL", "/greetings", :after) { test_filter.modified = test_filter.modified == "true" ? "false" : "true" }
filter_middleware._add_route_filter("GET", "/greetings", :after) { test_filter.modified = test_filter.modified == "true" ? "false" : "true" }
filter_middleware._add_route_filter("POST", "/greetings", :after) { test_filter.modified = test_filter.modified == "true" ? "false" : "true" }
kemal = Kemal::RouteHandler::INSTANCE
kemal.add_route "GET", "/greetings" { test_filter.modified }
kemal.add_route "POST", "/greetings" { test_filter.modified }
test_filter.modified.should eq("false")
request = HTTP::Request.new("GET", "/greetings")
create_request_and_return_io(filter_middleware, request)
io_with_context = create_request_and_return_io(kemal, request)
client_response = HTTP::Client::Response.from_io(io_with_context, decompress: false)
client_response.body.should eq("false")
request = HTTP::Request.new("POST", "/greetings")
create_request_and_return_io(filter_middleware, request)
io_with_context = create_request_and_return_io(kemal, request)
client_response = HTTP::Client::Response.from_io(io_with_context, decompress: false)
client_response.body.should eq("false")
end
end
class FilterTest

14
spec/param_parser_spec.cr
View file

@ -7,7 +7,7 @@ describe "ParamParser" do
"Hello #{hasan}"
end
request = HTTP::Request.new("POST", "/?hasan=cemal")
params = Kemal::ParamParser.new(route, request).parse
params = Kemal::ParamParser.new(request).parse
params["hasan"].should eq "cemal"
end
@ -26,7 +26,7 @@ describe "ParamParser" do
headers: HTTP::Headers{"Content-Type": "application/x-www-form-urlencoded"},
)
params = Kemal::ParamParser.new(route, request).parse
params = Kemal::ParamParser.new(request).parse
params.should eq({"hasan" => "cemal", "name" => "serdar", "age" => "99"})
end
@ -41,7 +41,7 @@ describe "ParamParser" do
headers: HTTP::Headers{"Content-Type": "application/json"},
)
params = Kemal::ParamParser.new(route, request).parse
params = Kemal::ParamParser.new(request).parse
params.should eq({"name": "Serdar"})
end
@ -55,7 +55,7 @@ describe "ParamParser" do
headers: HTTP::Headers{"Content-Type": "application/json"},
)
params = Kemal::ParamParser.new(route, request).parse
params = Kemal::ParamParser.new(request).parse
params.should eq({"_json": [1]})
end
@ -69,7 +69,7 @@ describe "ParamParser" do
headers: HTTP::Headers{"Content-Type": "application/json"},
)
params = Kemal::ParamParser.new(route, request).parse
params = Kemal::ParamParser.new(request).parse
params.should eq({"foo": "bar", "_json": [1]})
end
@ -82,7 +82,7 @@ describe "ParamParser" do
headers: HTTP::Headers{"Content-Type": "application/json"},
)
params = Kemal::ParamParser.new(route, request).parse
params = Kemal::ParamParser.new(request).parse
params.should eq({} of String => AllParamTypes)
end
end
@ -103,7 +103,7 @@ describe "ParamParser" do
headers: HTTP::Headers{"Content-Type": "text/plain"},
)
params = Kemal::ParamParser.new(route, request).parse
params = Kemal::ParamParser.new(request).parse
params.should eq({"hasan" => "cemal"})
end
end

30
spec/route_handler_spec.cr
View file

@ -2,7 +2,7 @@ require "./spec_helper"
describe "Kemal::RouteHandler" do
it "routes" do
kemal = Kemal::RouteHandler.new
kemal = Kemal::RouteHandler::INSTANCE
kemal.add_route "GET", "/" do
"hello"
end
@ -13,7 +13,7 @@ describe "Kemal::RouteHandler" do
end
it "routes request with query string" do
kemal = Kemal::RouteHandler.new
kemal = Kemal::RouteHandler::INSTANCE
kemal.add_route "GET", "/" do |env|
"hello #{env.params["message"]}"
end
@ -24,7 +24,7 @@ describe "Kemal::RouteHandler" do
end
it "routes request with multiple query strings" do
kemal = Kemal::RouteHandler.new
kemal = Kemal::RouteHandler::INSTANCE
kemal.add_route "GET", "/" do |env|
"hello #{env.params["message"]} time #{env.params["time"]}"
end
@ -35,7 +35,7 @@ describe "Kemal::RouteHandler" do
end
it "route parameter has more precedence than query string arguments" do
kemal = Kemal::RouteHandler.new
kemal = Kemal::RouteHandler::INSTANCE
kemal.add_route "GET", "/:message" do |env|
"hello #{env.params["message"]}"
end
@ -46,7 +46,7 @@ describe "Kemal::RouteHandler" do
end
it "parses simple JSON body" do
kemal = Kemal::RouteHandler.new
kemal = Kemal::RouteHandler::INSTANCE
kemal.add_route "POST", "/" do |env|
name = env.params["name"]
age = env.params["age"]
@ -66,7 +66,7 @@ describe "Kemal::RouteHandler" do
end
it "parses JSON with string array" do
kemal = Kemal::RouteHandler.new
kemal = Kemal::RouteHandler::INSTANCE
kemal.add_route "POST", "/" do |env|
skills = env.params["skills"] as Array
"Skills #{skills.each.join(',')}"
@ -85,7 +85,7 @@ describe "Kemal::RouteHandler" do
end
it "parses JSON with json object array" do
kemal = Kemal::RouteHandler.new
kemal = Kemal::RouteHandler::INSTANCE
kemal.add_route "POST", "/" do |env|
skills = env.params["skills"] as Array
skills_from_languages = skills.map do |skill|
@ -110,7 +110,7 @@ describe "Kemal::RouteHandler" do
# Removed until there is a way to test multiple middlewares
# it "renders 404 on not found" do
# kemal = Kemal::RouteHandler.new
# kemal = Kemal::RouteHandler::INSTANCE
# request = HTTP::Request.new("GET", "/?message=world")
# io_with_context = create_request_and_return_io(kemal, request)
# client_response = HTTP::Client::Response.from_io(io_with_context, decompress: false)
@ -118,7 +118,7 @@ describe "Kemal::RouteHandler" do
# end
# it "renders 500 on exception" do
# kemal = Kemal::RouteHandler.new
# kemal = Kemal::RouteHandler::INSTANCE
# kemal.add_route "GET", "/" do
# raise "Exception"
# end
@ -130,7 +130,7 @@ describe "Kemal::RouteHandler" do
# end
#
it "checks for _method param in POST request to simulate PUT" do
kemal = Kemal::RouteHandler.new
kemal = Kemal::RouteHandler::INSTANCE
kemal.add_route "PUT", "/" do |env|
"Hello World from PUT"
end
@ -146,7 +146,7 @@ describe "Kemal::RouteHandler" do
end
it "checks for _method param in POST request to simulate PATCH" do
kemal = Kemal::RouteHandler.new
kemal = Kemal::RouteHandler::INSTANCE
kemal.add_route "PATCH", "/" do |env|
"Hello World from PATCH"
end
@ -162,7 +162,7 @@ describe "Kemal::RouteHandler" do
end
it "checks for _method param in POST request to simulate DELETE" do
kemal = Kemal::RouteHandler.new
kemal = Kemal::RouteHandler::INSTANCE
kemal.add_route "DELETE", "/" do |env|
"Hello World from DELETE"
end
@ -179,7 +179,7 @@ describe "Kemal::RouteHandler" do
end
it "can process HTTP HEAD requests for defined GET routes" do
kemal = Kemal::RouteHandler.new
kemal = Kemal::RouteHandler::INSTANCE
kemal.add_route "GET", "/" do |env|
"Hello World from GET"
end
@ -191,7 +191,7 @@ describe "Kemal::RouteHandler" do
# Removed until there is a way to test multiple middlewares
# it "can't process HTTP HEAD requests for undefined GET routes" do
# kemal = Kemal::RouteHandler.new
# kemal = Kemal::RouteHandler::INSTANCE
# request = HTTP::Request.new("HEAD", "/")
# io_with_context = create_request_and_return_io(kemal, request)
# client_response = HTTP::Client::Response.from_io(io_with_context, decompress: false)
@ -199,7 +199,7 @@ describe "Kemal::RouteHandler" do
# end
it "redirects user to provided url" do
kemal = Kemal::RouteHandler.new
kemal = Kemal::RouteHandler::INSTANCE
kemal.add_route "GET", "/" do |env|
env.redirect "/login"
end

2
spec/route_spec.cr
View file

@ -3,7 +3,7 @@ require "./spec_helper"
describe "Route" do
describe "match?" do
it "matches the correct route" do
kemal = Kemal::RouteHandler.new
kemal = Kemal::RouteHandler::INSTANCE
kemal.add_route "GET", "/route1" do |env|
"Route 1"
end

1
spec/spec_helper.cr
View file

@ -40,4 +40,5 @@ Spec.before_each do
config.env = "development"
config.setup_logging
config.handlers.clear
Kemal::RouteHandler::INSTANCE.tree = Radix::Tree.new
end

6
spec/view_spec.cr
View file

@ -6,7 +6,7 @@ end
describe "Views" do
it "renders file" do
kemal = Kemal::RouteHandler.new
kemal = Kemal::RouteHandler::INSTANCE
kemal.add_route "GET", "/view/:name" do |env|
name = env.params["name"]
render "spec/asset/hello.ecr"
@ -18,7 +18,7 @@ describe "Views" do
end
it "renders file with dynamic variables" do
kemal = Kemal::RouteHandler.new
kemal = Kemal::RouteHandler::INSTANCE
kemal.add_route "GET", "/view/:name" do |env|
name = env.params["name"]
render_with_base_and_layout "hello.ecr"
@ -30,7 +30,7 @@ describe "Views" do
end
it "renders layout" do
kemal = Kemal::RouteHandler.new
kemal = Kemal::RouteHandler::INSTANCE
kemal.add_route "GET", "/view/:name" do |env|
name = env.params["name"]
render "spec/asset/hello.ecr", "spec/asset/layout.ecr"

11
src/kemal/context.cr
View file

@ -3,12 +3,21 @@
class HTTP::Server
class Context
def params
@params ||= Kemal::ParamParser.new(@route, @request).parse
@params ||= Kemal::ParamParser.new(@request).parse
end
def redirect(url, status_code = 302)
@response.headers.add "Location", url
@response.status_code = status_code
end
def route_lookup
@route_lookup ||= Kemal::RouteHandler::INSTANCE.lookup_route(@request.override_method as String, @request.path)
end
def route_defined?
route_lookup.found?
end
end
end

88
src/kemal/middleware/filters.cr
View file

@ -2,47 +2,72 @@ module Kemal::Middleware
# Kemal::Filter handle all code that should be evaluated before and after
# every request
class Filter < HTTP::Handler
INSTANCE = new
# This middleware is lazily instantiated and added to the handlers as soon as a call to `after_X` or `before_X` is made.
def initialize
@tree = Radix::Tree.new
Kemal.config.add_handler(self)
end
def add(type, path, options, &block : HTTP::Server::Context -> _)
node = radix_path type, path
@tree.add node, Block.new &block
end
# The call order of the filters is before_all -> before_x -> X -> after_x -> after_all
def call(context)
process_filter(context, :before)
return call_next(context) unless context.route_defined?
call_block_for_path_type("ALL", context.request.path, :before, context)
call_block_for_path_type(context.request.override_method, context.request.path, :before, context)
call_next(context)
process_filter(context, :after)
call_block_for_path_type(context.request.override_method, context.request.path, :after, context)
call_block_for_path_type("ALL", context.request.path, :after, context)
context
end
def filter_for_path_type_defined?(path, type)
lookup = @tree.find radix_path(type, path)
# This checks is filter is already defined for the verb/path/type combination
def filter_for_path_type_defined?(verb, path, type)
lookup = @tree.find radix_path(verb, path, type)
lookup.found? && lookup.payload.is_a? Block
end
private def process_filter(context, type)
lookup = @tree.find radix_path(type, context.request.path)
# :nodoc: This shouldn't be called directly, it's not private because I need to call it for testing purpose since I can't call the macros in the spec.
# It adds the block for the corresponding verb/path/type combination to the tree.
def _add_route_filter(verb, path, type, &block : HTTP::Server::Context -> _)
node = radix_path(verb, path, type)
@tree.add node, Block.new &block
end
# This can be called directly but it's simpler to just use the macros, it will check if another filter is not already defined for this verb/path/type and proceed to call `add_route_filter`
def before(verb, path = "*", &block : HTTP::Server::Context -> _)
raise Kemal::Middleware::Filter::BeforeFilterAlreadyDefinedException.new(verb, path) if filter_for_path_type_defined?(verb, path, :before)
_add_route_filter verb, path, :before, &block
end
# This can be called directly but it's simpler to just use the macros, it will check if another filter is not already defined for this verb/path/type and proceed to call `add_route_filter`
def after(verb, path = "*", &block : HTTP::Server::Context -> _)
raise Kemal::Middleware::Filter::AfterFilterAlreadyDefinedException.new(verb, path) if filter_for_path_type_defined?(verb, path, :after)
_add_route_filter verb, path, :after, &block
end
# This will fetch the block for the verb/path/type from the tree and call it.
private def call_block_for_path_type(verb, path, type, context)
lookup = @tree.find radix_path(verb, path, type)
if lookup.found? && lookup.payload.is_a? Block
block = lookup.payload as Block
block.block.call(context)
end
end
private def radix_path(type : Symbol, path)
"/#{type}#{path}"
private def radix_path(verb, path, type : Symbol)
"#{type}/#{verb}/#{path}"
end
class BeforeFilterAlreadyDefinedException < Exception
def initialize(path)
super "A before-filter is already defined for path: '#{path}'."
def initialize(verb, path)
super "A before-filter is already defined for path: '#{verb}:#{path}'."
end
end
class AfterFilterAlreadyDefinedException < Exception
def initialize(path)
super "An after-filter is already defined for path: '#{path}'."
def initialize(verb, path)
super "An after-filter is already defined for path: '#{verb}:#{path}'."
end
end
end
@ -55,22 +80,15 @@ module Kemal::Middleware
end
end
def add_filters
unless filter = Kemal.config.handlers.any? { |handler| handler.is_a? Kemal::Middleware::Filter }
filter = Kemal::Middleware::Filter.new
Kemal.config.add_handler filter
# All the helper methods available are:
# - before_all, before_get, before_post, before_put, before_patch, before_delete
# - after_all, after_get, after_post, after_put, after_patch, after_delete
ALL_METHODS = %w(get post put patch delete all)
{% for type in ["before", "after"]%}
{% for method in ALL_METHODS %}
def {{type.id}}_{{method.id}}(path = "*", &block : HTTP::Server::Context -> _)
Kemal::Middleware::Filter::INSTANCE.{{type.id}}({{method}}.upcase, path, &block)
end
filter
end
def before(path = "*", options = {} of Symbol => String, &block : HTTP::Server::Context -> _)
filter = (Kemal.config.handlers.find { |handler| handler.is_a? Kemal::Middleware::Filter } || add_filters) as Kemal::Middleware::Filter
raise Kemal::Middleware::Filter::BeforeFilterAlreadyDefinedException.new(path) if filter.filter_for_path_type_defined?(path, :before)
filter.add :before, path, options, &block
end
def after(path = "*", options = {} of Symbol => String, &block : HTTP::Server::Context -> _)
filter = (Kemal.config.handlers.find { |handler| handler.is_a? Kemal::Middleware::Filter } || add_filters) as Kemal::Middleware::Filter
raise Kemal::Middleware::Filter::AfterFilterAlreadyDefinedException.new(path) if filter.filter_for_path_type_defined?(path, :after)
filter.add :after, path, options, &block
end
{% end %}
{% end %}

2
src/kemal/param_parser.cr
View file

@ -9,7 +9,7 @@ class Kemal::ParamParser
URL_ENCODED_FORM = "application/x-www-form-urlencoded"
APPLICATION_JSON = "application/json"
def initialize(@route, @request)
def initialize(@request)
@params = {} of String => AllParamTypes
end

24
src/kemal/request.cr
View file

@ -2,4 +2,28 @@
class HTTP::Request
property override_method
property url_params
def override_method
@override_method ||= check_for_method_override!
end
# Checks if request params contain _method param to override request incoming method
private def check_for_method_override!
@override_method = @method
if @method == "POST"
params = Kemal::ParamParser.new(self).parse_request
if params.has_key?("_method") && HTTP::Request.override_method_valid?(params["_method"])
@override_method = params["_method"]
end
end
@override_method
end
# Checks if method contained in _method param is valid one
def self.override_method_valid?(override_method)
return false unless override_method.is_a?(String)
override_method = override_method.upcase
override_method == "PUT" || override_method == "PATCH" || override_method == "DELETE"
end
end

16
src/kemal/route.cr
View file

@ -8,21 +8,5 @@ class Kemal::Route
def initialize(@method, @path, &@handler : HTTP::Server::Context -> _)
end
# Checks if request params contain _method param to override request incoming method
def self.check_for_method_override!(request)
request.override_method = request.method
if request.method == "POST"
params = Kemal::ParamParser.new(self, request).parse_request
if params.has_key?("_method") && self.override_method_valid?(params["_method"])
request.override_method = params["_method"]
end
end
end
# Checks if method contained in _method param is valid one
def self.override_method_valid?(override_method)
return false unless override_method.is_a?(String)
override_method = override_method.upcase
return (override_method == "PUT" || override_method == "PATCH" || override_method == "DELETE")
end
end

15
src/kemal/route_handler.cr
View file

@ -6,6 +6,8 @@ require "radix"
class Kemal::RouteHandler < HTTP::Handler
INSTANCE = new
property tree
def initialize
@tree = Radix::Tree.new
end
@ -22,13 +24,16 @@ class Kemal::RouteHandler < HTTP::Handler
add_to_radix_tree("HEAD", path, Route.new("HEAD", path, &handler)) if method == "GET"
end
# Check if a route is defined and returns the lookup
def lookup_route(verb, path)
@tree.find radix_path(verb, path)
end
# Processes the route if it's a match. Otherwise renders 404.
def process_request(context)
Kemal::Route.check_for_method_override!(context.request)
lookup = @tree.find radix_path(context.request.override_method as String, context.request.path)
raise Kemal::Exceptions::RouteNotFound.new(context) unless lookup.found?
route = lookup.payload as Route
context.request.url_params = lookup.params
raise Kemal::Exceptions::RouteNotFound.new(context) unless context.route_defined?
route = context.route_lookup.payload as Route
context.request.url_params = context.route_lookup.params
context.response.print(route.handler.call(context).to_s)
context
end