topic Re: Get current selections in Nebula.js in Integration, Extension & APIs

Get current selections in Nebula.js

sanekagr2 — Mon, 22 May 2023 16:38:09 GMT

Hi all,

How to get current selections in real time in Nebula.js, in Capability API I can use app.getList('SelectionObject',callback). Is there some alternative in Nebula?

Thanks in advance

Re: Get current selections in Nebula.js

rankassovitz — Tue, 23 May 2023 12:09:29 GMT

Hello @sanekagr2 ,

Capability API is a bit more robust than Nebula. Nebula is only used for embedding Qlik objects. For everything that is outside of actually embedding (session management, hyperCubes, lists, passing selections, evaluating expressions etc.), you will need to directly interact with the QIX engine, via Enigma.js .

To get currentSelections the "Engima" way, you'll need to use the "CreateSessionObject" method and pass the "qSelectionObjectDef" object definition:

Hope it helps

Re: Get current selections in Nebula.js

Jeffrey_Goldberg — Mon, 22 May 2023 17:59:53 GMT

@rankassovitz suggested the correct approach. This is the way.

Re: Get current selections in Nebula.js

sanekagr2 — Mon, 22 May 2023 20:00:36 GMT

Thank you for the fast response, I will try this solution.

Re: Get current selections in Nebula.js

sanekagr2 — Tue, 23 May 2023 09:48:50 GMT

Maybe you know some example of using Enigma.js in Angular application?

Re: Get current selections in Nebula.js

rankassovitz — Tue, 23 May 2023 18:16:37 GMT

Here's a good open source Angular.io example:

https://github.com/yianni-ververis/nebula-angular

- look at globals.ts, you'll see how he authenticated (to a saas tenant) and got his enigma app (doc).

For more, framework agnostic, enigma.js examples check here:
https://github.com/qlik-oss/enigma.js/tree/master/examples

Re: Get current selections in Nebula.js

sanekagr2 — Thu, 25 May 2023 06:53:03 GMT

Thanks. Your solution worked:

const selectionObj = await app.createSessionObject({ "qInfo": { "qType": "CurrentSelection" }, "qSelectionObjectDef": {} }).then((model) => model); selectionObj.getLayout().then((layout) => { console.log('selectionObj', layout); });

Do you know the way to get the real time selection change indication in Enigma?

Re: Get current selections in Nebula.js

Axel_K — Thu, 04 Jan 2024 15:46:05 GMT

Thanks for the solution, i have been looking for this!

But reading the documentation of the enigma-api: Qix JSON-RPC | Qlik Developer Portal

It is hard to understand it is possible to do this, is there anywhere one may find information about what types "qType" can be in this case, and that :

        "qSelectionObjectDef": {}

is a viable input to this method is also unclear.