Accepts requests with query string

spec/frank_handler_spec.cr

@@ -11,6 +11,16 @@ describe "Frank::Handler" do
     response.body.should eq("hello")
   end
 
+  it "routes request with query string" do
+    frank = Frank::Handler.new
+    frank.add_route "GET", "/" do |ctx|
+      "hello #{ctx.params["message"]}"
+    end
+    request = HTTP::Request.new("GET", "/?message=world")
+    response = frank.call(request)
+    response.body.should eq("hello world")
+  end
+
   it "sets content type" do
     frank = Frank::Handler.new
     frank.add_route "GET", "/" do |env|

src/frank/context.cr

@@ -11,4 +11,8 @@ class Frank::Context
   def response?
     @response
   end
+
+  def params
+    request.params
+  end
 end

src/frank/handler.cr

@@ -1,4 +1,5 @@
 require "http/server"
+require "cgi"
 
 class Frank::Handler < HTTP::Handler
   INSTANCE = new
@@ -17,10 +18,17 @@ class Frank::Handler < HTTP::Handler
   end
 
   def exec_request(request)
-    components = request.path.split "/"
+    uri = request.uri
+    components = uri.path.not_nil!.split "/"
     @routes.each do |route|
       params = route.match(request.method, components)
       if params
+        if query = uri.query
+          CGI.parse(query) do |key, value|
+            params[key] = value
+          end
+        end
+
         frank_request = Request.new(request, params)
         context = Context.new(frank_request)
         begin