merge instead of overwrite capability

go.mod

@@ -26,6 +26,7 @@ require (
 	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/mattn/go-runewidth v0.0.15 // indirect
 	github.com/mattn/go-sqlite3 v1.14.22 // indirect
+	github.com/qjebbs/go-jsons v0.0.0-20221222033332-a534c5fc1c4c // indirect
 	github.com/rivo/uniseg v0.2.0 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
 	github.com/shurcooL/sanitized_anchor_name v1.0.0 // indirect

go.sum

@@ -71,6 +71,8 @@ github.com/mattn/go-sqlite3 v1.14.22 h1:2gZY6PC6kBnID23Tichd1K+Z0oS6nE/XwU+Vz/5o
 github.com/mattn/go-sqlite3 v1.14.22/go.mod h1:Uh1q+B4BYcTPb+yiD3kU8Ct7aC0hY9fxUwlHK0RXw+Y=
 github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/qjebbs/go-jsons v0.0.0-20221222033332-a534c5fc1c4c h1:kmzxiX+OB0knCo1V0dkEkdPelzCdAzCURCfmFArn2/A=
+github.com/qjebbs/go-jsons v0.0.0-20221222033332-a534c5fc1c4c/go.mod h1:wNJrtinHyC3YSf6giEh4FJN8+yZV7nXBjvmfjhBIcw4=
 github.com/rivo/uniseg v0.2.0 h1:S1pD9weZBuJdFmowNwbpi7BJ8TNftyUImj/0WQi72jY=
 github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
 github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf35Ld67mk=

local/service/config.go

@@ -12,6 +12,7 @@ import (
 	"time"
 
 	"github.com/gofiber/fiber/v2"
+	"github.com/qjebbs/go-jsons"
 	"golang.org/x/text/encoding/unicode"
 	"golang.org/x/text/transform"
 )
@@ -38,6 +39,7 @@ func NewConfigService(repository *repository.ConfigRepository, serverRepository
 func (as ConfigService) UpdateConfig(ctx *fiber.Ctx, body *map[string]interface{}) (*model.Config, error) {
 	serverID, _ := ctx.ParamsInt("id")
 	configFile := ctx.Params("file")
+	merge := ctx.QueryBool("merge")
 
 	server := as.serverRepository.GetFirst(ctx.UserContext(), serverID)
 
@@ -63,6 +65,13 @@ func (as ConfigService) UpdateConfig(ctx *fiber.Ctx, body *map[string]interface{
 		return nil, err
 	}
 
+	if merge {
+		newData, err = jsons.Merge(oldDataUTF8, newData)
+		if err != nil {
+			return nil, err
+		}
+	}
+
 	newDataUTF16, err := EncodeUTF16LEBOM(newData)
 	if err != nil {
 		return nil, err