topic Qlik Visualization API - exportImg method is not working in Integration, Extension & APIs

Qlik Visualization API - exportImg method is not working

PradeepK — Sat, 16 Nov 2024 00:48:51 GMT

Kindly Help!!! Can anyone confirm if exportImg() and exportPdf() Visualization API method works.. ? 🤔

exportImg method is not returning any result or any errors.

official documentation for exportImg method

Environment : Qlik Sense Desktop November 2020 Patch 3

Code :

Result : get method is working ; But exportImg method never returns anything.. not even error.. as shown below. Also this issue is with exportImg() and exportPdf() methods.. exportData() is working fine. 😑

Btw Export Image feature is working in Qlik hub; So it is not the port / setup issue.

Re: Qlik Visualization API - exportImg method is not working

Aurelien_Martinez — Tue, 19 Jan 2021 11:08:30 GMT

Hi,

If you try with options like:

{ format: 'png', height: '400px',width: '800px'}

Aurélien

Re: Qlik Visualization API - exportImg method is not working

PradeepK — Tue, 19 Jan 2021 12:03:41 GMT

Thanks for the Reply.

Yes I have tried this.. but still no luck. it's still not throwing any error or giving any results back.

Also as per official documentation height and width params are of type Number or String... I doubt adding 'px' will help.

Please let me know if your suggested changes are working for you. Any screenshot for same will be appreciated..

Re: Qlik Visualization API - exportImg method is not working

ErikWetterberg — Tue, 19 Jan 2021 12:15:15 GMT

Are you tring to print an extension or a built-in chart?

Re: Qlik Visualization API - exportImg method is not working

Aurelien_Martinez — Tue, 19 Jan 2021 12:43:44 GMT

Hi,

I have this code (you are right about the option):

require( ["js/qlik"], function ( qlik ) { //callbacks -- inserted here -- //open apps -- inserted here -- var app = qlik.openApp('ecd8451b-973d-4ad1-84cf-b0404bb8275e', config); //get objects -- inserted here -- app.getObject('QV01','92f34e86-73a4-429d-86c9-af5a37820e55'); var settings = { format: 'png', height: 200, width: 200 } app.visualization.get('92f34e86-73a4-429d-86c9-af5a37820e55').then(function(vis){ vis.exportImg(settings).then(function (result) { console.log('Image download link: ', result); }); }); } );

And the result:

I use Qlik Sense Novembre 2020 Patch 2

Re: Qlik Visualization API - exportImg method is not working

PradeepK — Tue, 19 Jan 2021 12:37:42 GMT

Default Qlik Objects.

Re: Qlik Visualization API - exportImg method is not working

PradeepK — Tue, 19 Jan 2021 12:46:56 GMT

Thanks for the sample.. It is really helpful.

one more doubt.. is app.getObject() Necessary to use exportImg method ?

Can PrintingService not create virtual HTML instance for rendering; if using exportImg method on server-side.. ?

Re: Qlik Visualization API - exportImg method is not working

Aurelien_Martinez — Tue, 19 Jan 2021 12:54:08 GMT

is app.getObject() Necessary to use exportImg method ?

==> No, you can remove this line 😉

Can PrintingService not create virtual HTML instance for rendering; if using exportImg method on server-side.. ?

==> I don't konw, sorry 😕

Re: Qlik Visualization API - exportImg method is not working

PradeepK — Tue, 19 Jan 2021 13:11:01 GMT

Exactly my thought process.. getObject() should not be required.. but if i remove it.. It's back to square one; No errors No Links. 😑

I guess one Rendered Instance of that object is required..

Let me know if your code still works for you if you remove getObject() Method.

Re: Qlik Visualization API - exportImg method is not working

Aurelien_Martinez — Tue, 19 Jan 2021 13:18:48 GMT

Yes without this line my code still working, but it's not very fast... the link is generated after 9/10 seconds.