How to use [slots.create]

The reference page of slots.create has its arguments, constraints and declaration.

Creates a dynamic slot that can be invoked using [signal]. Below is an example.

slots.create:foo
   return-value:int:57

Notice, the above slot aren’t persisted in any ways, implying if your web server restarts its process, your slot is removed. If you want to make sure your slots become a permanent part of your application, you need to make sure you are somehow creating it during server startup, which can normally be done on a per module basis, by putting a Hyperlambda file into your module’s “magic.startup” folder, which makes sure the code is executed during startup of your web app.