feat: login service and implement database storage

internal/utilities/response/error_with_code.go

@@ -0,0 +1,23 @@
+package response
+
+import (
+	"context"
+	"encoding/json"
+	"net/http"
+)
+
+func ResponseWithErrorCode(ctx context.Context, w http.ResponseWriter,
+	err error, code string, statusCode int, message string) {
+	setDefaultHeaders(ctx, w.Header())
+
+	w.WriteHeader(statusCode)
+
+	b, _ := json.Marshal(ErrorResponse{
+		Error: ErrorResponseData{
+			Code:    code,
+			Message: message,
+		},
+	})
+
+	w.Write(b)
+}