feat: http router, command api

internal/router/validator.go

@@ -0,0 +1,17 @@
+package router
+
+import (
+	"strings"
+
+	"github.com/go-playground/validator/v10"
+)
+
+var notBlankStringValidator validator.Func = func(fl validator.FieldLevel) bool {
+	s, ok := fl.Field().Interface().(string)
+	if ok {
+		if len(strings.TrimSpace(s)) == 0 {
+			return false
+		}
+	}
+	return true
+}