We put all our server requests through a single "manager" object so we can 
keep track of the server side requests (to drive "please wait" etc)... You 
could do something like that? Although be painful if other requests 
happening.

The other tactic we use is to group requests into bundles with individual 
callbacks and a single one at the end when all done. RequestFactory 
provides this out of the box.

Maybe just having a parent widget that is informed by sub-widgets when they 
are ready? 

The real pain is what to do if one or more calls returns an error.

On Tuesday, January 10, 2017 at 3:07:25 AM UTC, Namline wrote:
>
> I have several widgets/composites on a toolbar that are retrieved 
> asynchronously. I need to know how I can wait for all the asynchronous 
> calls for each widget/composite to retrieve information it needs for 
> rendering to complete before showing the toolbar that houses them. 
>

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