Asynch/Await

[marco.rossi]

Good morning,
does exist a way of doing an Asynch/Await call in Servoy-NGClient without building an Angular plugin?

best regards

Marco

[paronne]

Hi Marco,

what are you really trying to achieve with Asynch/Await call ?
If you are looking into performing an heavy background operation you can still make use of the headless client to perform an heavy task async.

Regards,
Paolo

[marco.rossi]

Hi Paolo,
thank you for your reply.

I know the headless client but there are several cases in which one could have the necessity to work in an asynch way (ex: when you call external APIs or while you're in the middle of an huge refactor and you want to give to the user a better experience).

Can Servoy achieve that?

[paronne]

Hi Marco,

sure, is possible to execute async API request since some time already.
Using the HTTP plugin you can executeAsyncRequest. Check https://wiki.servoy.com/display/DOCS/Ge ... kExtraArgs)

Regards,
Paolo

[marco.rossi]

Hi Paolo,
thank you again for your last reply.
I was aware about the "http" plugin to interrogate an external API but this doesn't allow me (as far as I know) to perform a real Asynch/Await with a servoy function.

Example: I have a form with 5 divs within. I have to fill each div with some data taken by running some db functions. Two functions are very slow and what I would like
to get is a way to launch their execution in an asynch way.

In this way, I would optimize the time that the user has to wait to get the whole screen loaded.

I know that the db should be built in order to avoid this kind of scenarios but it's not always possible, especially when you're called to refactor an old system.
That's why I'm asking if Servoy is able to do an Asynch/Await.

Apart of all the considerations and the specific needs, the final question remains: is Servoy able to do that?

[paronne]

Hi Marco,

feels you want to show some KPI/Stats as result of complex/slow queries ?
the examples you describe i would have solve them using an headless client and update the UI async as soon i get a response from the headless.

As far i know there is no actual Asynch/Await constructor to be used; that's has been only introduced in the later 8th generation of the ECMAScript.
Can't tell if there is a Java equivalent pattern for that.

Regards,
Paolo

[marco.rossi]

Hi Paolo,
thank you for your answer and your time.