Restructure the go package

pkg/ghost/params/params.go

@@ -0,0 +1,39 @@
+package params
+
+// Params are generics query argument
+type Params struct {
+	Limit int
+	Page  int
+}
+
+// Modifier function takes params and makes some changes
+type Modifier func(params Params) Params
+
+// Modifiers is a list of modifier
+type Modifiers []Modifier
+
+// Apply function modifies params
+func (ms Modifiers) Apply(params Params) Params {
+
+	for _, m := range ms {
+		params = m(params)
+	}
+
+	return params
+}
+
+// WithLimit modifier setups the limit
+func WithLimit(limit int) Modifier {
+	return func(params Params) Params {
+		params.Limit = limit
+		return params
+	}
+}
+
+// WithPage modifier setups the page
+func WithPage(page int) Modifier {
+	return func(params Params) Params {
+		params.Page = page
+		return params
+	}
+}