Flow: Feature Request: HasUrlParameter Support of custom parameter types

[knoobie]

Currently HasUrlParameter only supports:

https://github.com/vaadin/flow/blob/40a89b9998c35073db06f4a1073bb56b84835027/flow-server/src/main/java/com/vaadin/flow/router/ParameterDeserializer.java#L40-L43

It would be lovely to support more types, for example UUID or custom types.

Example: We have most of our IDs wrapped in a container class / id class (UserId and so) - it would be awesome to use this types directly and register them with flow.

Ideas to do that:

• Using JsonSerializable
• Using ServiceRegistry
• Moving Code from ParameterDeserializer to a default implementation of HasUrlParameter and let the developer overwrite it. (default T convert(String urlParameter){...})
• using the third option and Result as return to allow success and error case of parameter transformation

Edit: Used wrong Interface..

[gilberto-torrezan]

Hey @knoobie,

There is an add-on that might help you out: https://vaadin.com/directory/component/url-parameter-mapping

It doesn't have all the features you're asking for, but maybe it's a good start for your project.

[knoobie]

Thanks, @gilberto-torrezan! That looks really promising.

Upvoted the issues linked in the add-on as well - would love to see the "advanced" Router in the next LTS or so :)

[pleku]

"advanced" Router in the next LTS or so :)

On my list of things to improve. V13 is quite tight but V14 is very plausible target for this.

[bogdanudrescu]

This should be, at least partially, implemented together with https://github.com/vaadin/flow/issues/8048