Modiy HTTP::Params.[] to fetch all params (#328)

spec/param_parser_spec.cr

@@ -2,25 +2,20 @@ require "./spec_helper"
 
 describe "ParamParser" do
   it "parses query params" do
-    route = Route.new "POST", "/" do |env|
-      hasan = env.params.query["hasan"]
-      "Hello #{hasan}"
-    end
     request = HTTP::Request.new("POST", "/?hasan=cemal")
     query_params = Kemal::ParamParser.new(request).query
     query_params["hasan"].should eq "cemal"
   end
 
+  context "#query" do
     it "parses multiple values for query params" do
-    route = Route.new "POST", "/" do |env|
-      hasan = env.params.query["hasan"]
-      "Hello #{hasan}"
-    end
       request = HTTP::Request.new("POST", "/?hasan=cemal&hasan=lamec")
       query_params = Kemal::ParamParser.new(request).query
-    query_params.fetch_all("hasan").should eq ["cemal", "lamec"]
+      query_params["hasan"].should eq ["cemal", "lamec"]
+    end
   end
 
+  context "#url" do
     it "parses url params" do
       kemal = Kemal::RouteHandler::INSTANCE
       kemal.add_route "POST", "/hello/:hasan" do |env|
@@ -49,15 +44,10 @@ describe "ParamParser" do
       url_params["money"].should eq "$19.99"
       url_params["spanish"].should eq "año"
     end
-
-  it "parses request body" do
-    route = Route.new "POST", "/" do |env|
-      name = env.params.query["name"]
-      age = env.params.query["age"]
-      hasan = env.params.body["hasan"]
-      "Hello #{name} #{hasan} #{age}"
   end
 
+  context "#body" do
+    it "parses request body" do
       request = HTTP::Request.new(
         "POST",
         "/?hasan=cemal",
@@ -77,11 +67,6 @@ describe "ParamParser" do
     end
 
     it "parses multiple values in request body" do
-    route = Route.new "POST", "/" do |env|
-      hasan = env.params.body["hasan"]
-      "Hello #{hasan}"
-    end
-
       request = HTTP::Request.new(
         "POST",
         "/",
@@ -90,13 +75,25 @@ describe "ParamParser" do
       )
 
       body_params = Kemal::ParamParser.new(request).body
-    body_params.fetch_all("hasan").should eq(["cemal", "lamec"])
+      body_params["hasan"].should eq(["cemal", "lamec"])
     end
 
-  context "when content type is application/json" do
+    it "parses array values in request body" do
-    it "parses request body" do
+      request = HTTP::Request.new(
-      route = Route.new "POST", "/" { }
+        "POST",
+        "/",
+        body: "framework=kemal&feats[]=fast&feats[]=effective&feats[]=simple",
+        headers: HTTP::Headers{"Content-Type" => "application/x-www-form-urlencoded"},
+      )
 
+      body_params = Kemal::ParamParser.new(request).body
+      body_params["framework"].should eq("kemal")
+      body_params["feats[]"].should eq(["fast", "effective", "simple"])
+    end
+  end
+
+  context "#json" do
+    it "parses request body" do
       request = HTTP::Request.new(
         "POST",
         "/",
@@ -109,8 +106,6 @@ describe "ParamParser" do
     end
 
     it "parses request body when passed charset" do
-      route = Route.new "POST", "/" { }
-
       request = HTTP::Request.new(
         "POST",
         "/",
@@ -123,8 +118,6 @@ describe "ParamParser" do
     end
 
     it "parses request body for array" do
-      route = Route.new "POST", "/" { }
-
       request = HTTP::Request.new(
         "POST",
         "/",
@@ -137,8 +130,6 @@ describe "ParamParser" do
     end
 
     it "parses request body and query params" do
-      route = Route.new "POST", "/" { }
-
       request = HTTP::Request.new(
         "POST",
         "/?foo=bar",
@@ -156,8 +147,6 @@ describe "ParamParser" do
     end
 
     it "handles no request body" do
-      route = Route.new "GET", "/" { }
-
       request = HTTP::Request.new(
         "GET",
         "/",
@@ -180,13 +169,6 @@ describe "ParamParser" do
 
   context "when content type is incorrect" do
     it "does not parse request body" do
-      route = Route.new "POST", "/" do |env|
-        name = env.params.body["name"]
-        age = env.params.body["age"]
-        hasan = env.params.query["hasan"]
-        "Hello #{name} #{hasan} #{age}"
-      end
-
       request = HTTP::Request.new(
         "POST",
         "/?hasan=cemal",

src/kemal/ext/params.cr

@@ -0,0 +1,8 @@
+module HTTP
+  struct Params
+    def [](name)
+      params = raw_params[name]
+      params.size == 1 ? params.first : params
+    end
+  end
+end

src/kemal/ext/request.cr

@@ -1,5 +1,5 @@
 class HTTP::Request
-  property override_method
+  property override_method : String?
   property url_params : Hash(String, String)?
   getter param_parser : Kemal::ParamParser?
 
@@ -21,7 +21,7 @@ class HTTP::Request
       @param_parser = Kemal::ParamParser.new(self)
       params = @param_parser.not_nil!.body
       if params.has_key?("_method") && HTTP::Request.override_method_valid?(params["_method"])
-        @override_method = params["_method"]
+        @override_method = params["_method"].as(String)
       end
     end
     @override_method