Server Action steps - (a)synchronous?

Wappler General
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In a thread earlier today (now closed), @George mentioned:

All Server Action steps ARE asynchronous!

I've always understood that server actions steps run in sequence - the next step only running when the previous one has completed - and this has also been my experience. So I assumed they ran synchronously. Are there situations where steps can't be relied on to complete in this way? Hopefully this is not the case, and it's just that I don't understand the implications of George's comment.

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They run asynchronous so they don’t slow down NodeJS, but of course are synchronized with Promises, so run in order.

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BTW Async actions are only for NodeJS. In other languages as PHP and ASP, or ASP.net - everything runs sequentially - synchronious.

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@TomD basically it means that one user won’t block the door for another user. But both of those users will execute their actions in the order you specify.

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Thanks for clarifying this - @George and @JonL.

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A post was split to a new topic: Conditional region questions