🧹 chore: address comments, and use more standard definition for

functionality we define

app.go

@@ -12,6 +12,7 @@ package fiber
 import (
 	"bufio"
 	"crypto/tls"
+	"encoding/json"
 	"errors"
 	"fmt"
 	"net"
@@ -272,11 +273,11 @@ type Config struct {
 	// RedirectFixedPath bool
 
 	// When set by an external client of Fiber it will use the provided implementation of a
-	// JSONExectuor
+	// JSONMarshal
 	//
-	// Allowing for flexibility in using another json library for marshalling/unmarshalling
-	// Default: utils.DefaultJSONExecutor
-	JSONEngineExecutor utils.JSONExecutor `json:"-"`
+	// Allowing for flexibility in using another json library for encoding
+	// Default: json.Marshal
+	JSONEncoder utils.JSONMarshal `json:"-"`
 }
 
 // Static defines configuration options when defining static assets.
@@ -385,8 +386,8 @@ func New(config ...Config) *App {
 	if app.config.ErrorHandler == nil {
 		app.config.ErrorHandler = DefaultErrorHandler
 	}
-	if app.config.JSONEngineExecutor == nil {
-		app.config.JSONEngineExecutor = &utils.DefaultJSONExecutor{}
+	if app.config.JSONEncoder == nil {
+		app.config.JSONEncoder = json.Marshal
 	}
 
 	// Init app

ctx.go

@@ -536,7 +536,7 @@ func (c *Ctx) Is(extension string) bool {
 // and a nil slice encodes as the null JSON value.
 // This method also sets the content header to application/json.
 func (c *Ctx) JSON(data interface{}) error {
-	raw, err := c.app.config.JSONEngineExecutor.Marshal(data)
+	raw, err := c.app.config.JSONEncoder(data)
 	if err != nil {
 		return err
 	}

utils/json_marshal.go

@@ -0,0 +1,5 @@
+package utils
+
+// JSONMarshal is the standard definition of representing a Go structure in
+// json format
+type JSONMarshal func(interface{}) ([]byte, error)

utils/json_executor_test.go → utils/json_marshal_test.go

@@ -1,10 +1,11 @@
 package utils
 
 import (
+	"encoding/json"
 	"testing"
 )
 
-func TestDefaultJSONExecutor(t *testing.T) {
+func TestDefaultJSONEncoder(t *testing.T) {
 	type SampleStructure struct {
 		ImportantString string `json:"important_string"`
 	}
@@ -14,11 +15,11 @@ func TestDefaultJSONExecutor(t *testing.T) {
 			ImportantString: "Hello World",
 		}
 		importantString = `{"important_string":"Hello World"}`
-	)
 
-	jsonExecutor := DefaultJSONExecutor{}
+		jsonEncoder JSONMarshal = json.Marshal
+	)
 
-	raw, err := jsonExecutor.Marshal(sampleStructure)
+	raw, err := jsonEncoder(sampleStructure)
 	AssertEqual(t, err, nil)
 
 	AssertEqual(t, string(raw), importantString)