Question: is it possible to execute code "on state change"

Hi,

One question, is it possible to execute code before entering to specific state.

I have a state machine which every state has a transition like next that execute some code (a http request) and then transition to the next state. However I want to check the state before actually reaching that state, let’s say to check if the state has X prop.

Is that possible without creating a transition like “checkingState”? Somehow like a specific callback? I saw that I can use middleware but I’m not sure if I can really achieve that like this.

Thank you 👍

[krasimir]

Yep. Thanks for the understanding. I just feel that a little bit of a anti-pattern.

[poteirard]

I think you are right. I just pointed out this because I used other state machine libraries in the past that offers those ‘hooks’ (Example: http://finite.readthedocs.io/en/master/examples/callbacks.html). But if you don’t want to include this functionality I totally understand it. Thanks for your help anyways 😃