Why is using a main deployment verticle best practice

[Eric McNeill]

I'm new to Vert.x and going through the Vert.x in Action book, which says "the typical way to deploy an application composed of verticles is as follows: 1. Deploy a main verticle. 2. The main verticle deploys other verticles..."

What's the practical advantage of structuring an application like this?

[Julien Viet]

Hi,

one advantage is that when you undeploy the main verticle, then it
will cascade undeploy all the verticles it deployed.

Also sometimes your application need to do some configuration loading
or other non business tasks and this main verticle can take care of
this for the other verticles.

Julien

On Wed, May 5, 2021 at 10:26 PM Eric McNeill <eric.m...@gmail.com> wrote:
>
> I'm new to Vert.x and going through the Vert.x in Action book, which says "the typical way to deploy an application composed of verticles is as follows: 1. Deploy a main verticle. 2. The main verticle deploys other verticles..."
>
> What's the practical advantage of structuring an application like this?
>

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[Eric McNeill]

Thanks Julien.