topic Re: refreshInterval in MapImageLayer not working as expected in ArcGIS JavaScript Maps SDK Questions

refreshInterval in MapImageLayer not working as expected

HanochS — Wed, 02 Mar 2022 10:49:26 GMT

Hi,

I have configured refreshInterval for MapImageLayer to be 0.1 (6 seconds). After monitoring the requests I can see that the timing is not as configured and seems awkward.

I attached a screenshot with the timing. You can see that requests are triggering each 12/6 sec randomly.

From the documentation I understood it should trigger each 6 sec but that is not the case.

Regards,

Hanoch

Re: refreshInterval in MapImageLayer not working as expected

UndralBatsukh — Wed, 02 Mar 2022 15:25:37 GMT

Hi there,

What version of the JS API are you using? At 4.22, I can see that refresh is triggered at every 6 seconds exactly. The response time can vary from the server.

Here is a simple test app that listens to the refresh event on the layer and it is goes off every 6 seconds: https://codepen.io/U_B_U/pen/ZEaVQmW?editors=1000

Re: refreshInterval in MapImageLayer not working as expected

HanochS — Wed, 02 Mar 2022 15:32:56 GMT

I am using 4.17, were there any changes related to refreshintervel between those versions?

Re: refreshInterval in MapImageLayer not working as expected

UndralBatsukh — Wed, 02 Mar 2022 16:36:56 GMT

Yes indeed. We did make improvements to refreshable layers at version 4.21 and 4.22. In the process we fixed bugs as well.

https://developers.arcgis.com/javascript/latest/4.21/#refreshable-layers

https://developers.arcgis.com/javascript/latest/release-notes/#refreshable-layers