fix https://github.com/kataras/iris/issues/1450 and continue on implementing 1449

Former-commit-id: 617f64d061e88f050a443ea1751fa244164656c5

hero/handler_test.go

@@ -4,6 +4,7 @@ package hero_test
 
 import (
 	"fmt"
+	"reflect"
 	"testing"
 
 	"github.com/kataras/iris/v12"
@@ -14,8 +15,8 @@ import (
 
 // dynamic func
 type testUserStruct struct {
-	ID       int64
-	Username string
+	ID       int64  `json:"id"`
+	Username string `json:"username"`
 }
 
 func testBinderFunc(ctx iris.Context) testUserStruct {
@@ -126,3 +127,38 @@ func TestBindFunctionAsFunctionInputArgument(t *testing.T) {
 	e.POST("/").WithFormField("username", expectedUsername).
 		Expect().Status(iris.StatusOK).Body().Equal(expectedUsername)
 }
+
+func TestBindReflectValue(t *testing.T) {
+	// TODO: THINK of simplify this,
+	// as 'hero' and 'mvc' are not depend on the root kataras/iris/v12 package, smart decision back then.
+	// e.g.
+	// app := iris.New()
+	// app.RegisterDependency(...)
+	// app.HandleFunc("GET POST", "/", func(input MyInput) MyOutput {})
+	// instead of:
+	// app := iris.New()
+	// h := hero.New()
+	// h.Register(...) or hero.Register for shared deps across Iris different applications.
+	// handler := h.Handler(func(input MyInput) MyOutput {})
+	// app.HandleMany("GET POST", "/", handler)
+
+	h := New()
+	h.Register(func(ctx iris.Context) reflect.Value {
+		var v interface{}
+		err := ctx.ReadJSON(&v)
+		if err != nil {
+			t.Fatal(err)
+		}
+		return reflect.ValueOf(v)
+		// return reflect.Value{}
+	})
+	postHandler := h.Handler(func(input testUserStruct) string {
+		return input.Username
+	})
+
+	app := iris.New()
+	app.Post("/", postHandler)
+
+	e := httptest.New(t, app)
+	e.POST("/").WithJSON(iris.Map{"username": "makis"}).Expect().Status(httptest.StatusOK).Body().Equal("makis")
+}