topic Re: Looking for best practices for Tracker in AGOL. in ArcGIS Tracker Questions

Looking for best practices for Tracker in AGOL.

JessicaSchneider — Tue, 22 Sep 2020 20:22:21 GMT

Hello,

Looking for best practices for ArcGIS Tracker in AGOL that will update to a web map for the last known location.

Currently we can not get the last known location to display in a timely manner. We are looking to show something as close to live as possible.

I am testing this by having a coworker watch a web map while I ride around my neighborhood on my bike holding my phone. the Tracker bread crumbs eventually updates when I get back but the last known location does not. My neighbors are starting to wonder why I keep taking 3 minute bike rides with 5 minute breaks in the house. Any tips would be great.

THANKS!

Re: Looking for best practices for Tracker in AGOL.

Anonymous User — Tue, 22 Sep 2020 23:54:26 GMT

Hi Jessica,

The last known location should be updating every 60/30s depending on the setting in the app. Is your map configured with a refresh interval, if so what is that interval?

Are you using iOS or Android?

Re: Looking for best practices for Tracker in AGOL.

JessicaSchneider — Wed, 23 Sep 2020 15:29:14 GMT

Aaron,

Thanks for your response.

We have the refresh interval on the tracker layers set at .1 minutes in the web map. We are using both iOS and Android products to test.

The only time it seems to work is when we refresh the page manually.

Also can tracker be shared with the public? The project we are working on is a Santa Tracker so we want this to be viewable to the public so they can see where Santa is along a float route through our local municipality.

Thanks again.

Re: Looking for best practices for Tracker in AGOL.

Anonymous User — Wed, 23 Sep 2020 15:53:29 GMT

Hmm, that should be working then. Are you using the Map Viewer Beta or the existing Map Viewer app? If you are seeing the refreshing on a hard-reload that leads me to believe is some issue with the map or the viewer app.

The Tracks layers cannot be shared publicly out of the box, however you could copy the feature layer layer url and add that as a new item with embedded credentials and then share that item publicly.

Re: Looking for best practices for Tracker in AGOL.

JessicaSchneider — Wed, 23 Sep 2020 18:00:17 GMT

I am using the existing Map viewer, I can try beta, and see if that is any different. Thanks again.

Re: Looking for best practices for Tracker in AGOL.

JessicaSchneider — Tue, 29 Sep 2020 19:20:23 GMT

Struck out on this plan. According to Tech Support we would need to constantly refresh the web page to see where the last known location is. We would like to see that update live.

Not sure what direction to head next to feed a live location.

Re: Looking for best practices for Tracker in AGOL.

Anonymous User — Tue, 29 Sep 2020 19:48:48 GMT

That doesn't make sense. The map viewer should be refreshing it automatically if you have a refresh interval defined. Can you try putting the same map into a ArcGIS Dashboard?

This is a very common use-case and definitely should be working.

If you'd like to dig into this more you can email me directly at apulver@esri.com

Re: Looking for best practices for Tracker in AGOL.

Anonymous User — Thu, 01 Oct 2020 14:00:49 GMT

Hi Jessica,

We have identified a caching issue in AGOL hosted feature services that is related to the behavior you are seeing. We are working on a fix and should deploy it within the next couple days. A potential workaround is to add a relative date filter to your LKL layer like "is within the last 2 days".

Re: Looking for best practices for Tracker in AGOL.

Anonymous User — Tue, 06 Oct 2020 13:24:01 GMT

This should have been resolved late last week (10/2/2020) with an update to ArcGIS Online hosted feature services. There was an incorrect caching rule in place.

Re: Looking for best practices for Tracker in AGOL.

MarkSimpson2 — Sun, 03 Jan 2021 22:40:56 GMT

Aaron, Are you saying it is possible to use this method to share track data publicly? Can I get help with this? It is exactly the way we'd like to use the AGOL webmap time filters to show vehicle locations with time bucket parameters...2hrs, 4hrs, 8hr, etc. It works great for AGOL authenticated users, but I cannot share the track Feature to the Public. It is public data. Perhaps it needs to be Tracker via Portal/Enterprise? Thanks!

Re: Looking for best practices for Tracker in AGOL.

Waffle_House — Wed, 10 Feb 2021 03:53:42 GMT

@Anonymous User I am also interested to know if there is a way to share live tracks with the public.

Re: Looking for best practices for Tracker in AGOL.

Anonymous User — Wed, 10 Feb 2021 14:53:24 GMT

It is possible to share tracks by creating a proxy layer with embedded credentials. You can do this by copying the feature service url and adding a new web service to ArcGIS Online using that url. You will prompted to enter credentials, if you store the credentials, then that proxied layer will work for public usage. We strongly discourage sharing the historical tracks publicly for performance, security, and privacy reasons. If you want to just share the last known location layer publicly that should be okay.

Re: Looking for best practices for Tracker in AGOL.

Waffle_House — Wed, 10 Feb 2021 17:41:54 GMT

Thanks so much for clarifying so quickly, @Anonymous User