refactor(api): pass by reference

src/api.rs

@@ -45,8 +45,8 @@ pub struct Response {
     message: Option<Message>,
 }
 
-fn change_password(data: Json<PasswordData>,
-                   context: rocket::State<Context>) -> Result<()> {
+fn change_password(data: &Json<PasswordData>,
+                   context: &rocket::State<Context>) -> Result<()> {
 
     let dn = Handlebars::new()
         .render_template(&context.dn, &json!({"username" : &data.username}))
@@ -72,7 +72,7 @@ fn change_password(data: Json<PasswordData>,
 pub fn update(data: Json<PasswordData>,
               context: rocket::State<Context>) -> Json<Response> {
     Json(
-        match change_password(data, context) {
+        match change_password(&data, &context) {
             Ok(_) => Response{
                 success: true,
                 message: None,