perf(encoding): improve encoding performance

encoding/form/form.go

@@ -17,7 +17,6 @@ func decodeMultipartForm(ctx *fasthttp.RequestCtx, v any) error {
 	if err != nil {
 		return err
 	}
-
 	return dec.Decode(decoder.Map(f.Value), v)
 }
 

encoding/json/json.go

@@ -3,18 +3,9 @@ package json
 import (
 	"github.com/abemedia/go-don/encoding"
 	"github.com/goccy/go-json"
-	"github.com/valyala/fasthttp"
 )
 
-func decodeJSON(ctx *fasthttp.RequestCtx, v any) error {
-	return json.NewDecoder(ctx.RequestBodyStream()).Decode(v)
-}
-
-func encodeJSON(ctx *fasthttp.RequestCtx, v any) error {
-	return json.NewEncoder(ctx).Encode(v)
-}
-
 func init() {
-	encoding.RegisterDecoder(decodeJSON, "application/json")
-	encoding.RegisterEncoder(encodeJSON, "application/json")
+	encoding.RegisterDecoder(json.Unmarshal, "application/json")
+	encoding.RegisterEncoder(json.Marshal, "application/json")
 }

encoding/json/json_test.go

@@ -12,7 +12,7 @@ type item struct {
 
 var opt = test.EncodingOptions[item]{
 	Mime:   "application/json",
-	Raw:    `{"foo":"bar"}` + "\n",
+	Raw:    `{"foo":"bar"}`,
 	Parsed: item{Foo: "bar"},
 }
 

encoding/msgpack/msgpack.go

@@ -2,19 +2,10 @@ package msgpack
 
 import (
 	"github.com/abemedia/go-don/encoding"
-	"github.com/valyala/fasthttp"
 	"github.com/vmihailenco/msgpack/v5"
 )
 
-func decodeMsgpack(ctx *fasthttp.RequestCtx, v any) error {
-	return msgpack.NewDecoder(ctx.RequestBodyStream()).Decode(v)
-}
-
-func encodeMsgpack(ctx *fasthttp.RequestCtx, v any) error {
-	return msgpack.NewEncoder(ctx).Encode(v)
-}
-
 func init() {
-	encoding.RegisterDecoder(decodeMsgpack, "application/x-msgpack")
-	encoding.RegisterEncoder(encodeMsgpack, "application/x-msgpack")
+	encoding.RegisterDecoder(msgpack.Unmarshal, "application/x-msgpack")
+	encoding.RegisterEncoder(msgpack.Marshal, "application/x-msgpack")
 }

handler_test.go

@@ -91,7 +91,7 @@ func TestHandlerResponse(t *testing.T) {
 			message: "should return null",
 			want: response{
 				Code: fasthttp.StatusOK,
-				Body: "null\n",
+				Body: "null",
 				Header: map[string]string{
 					"Content-Length": "0",
 					"Content-Type":   "application/json; charset=utf-8",