Does drogon have a recommended way to do parameter validation for HttpRequest?

[Nevercomes]

Maybe

1. Use an annotation like Spring of Java. (impossible)
2. Use a common filter, and the rules for validation can be transferred into it in a way.
3. Inject different filter into different HttpController method. (Use if-else in the filter)
4. Use if-else in every post-put handler method.

[rbugajewski]

Thanks for the feature request. Drogon currently doesn’t have a “sanctioned” way to do input validation. The options you already presented are currently the way to go.

This is indeed something I could imagine being part of the core framework.

[rajhlinux]

Can someone give some examples for input validation?