topic Re: Layer Query with timout and maxResults in ArcGIS JavaScript Maps SDK Questions

Layer Query with timout and maxResults

SebastianKrings — Tue, 24 Feb 2026 18:26:06 GMT

Hi,

we are performing spatial queries on multiple feature layers at once. At some cases the given geometry is pretty big and causes performance issues.

I am looking for a way to limit the query in time or amount instead of waiting til end or aborting it at al.

This is my current code:

const bufferGeometry = bufferOperator.execute(centerFeature.geometry!, 200, { unit: "meters"}); const bufferSearchResult = await Promise.all(searchLayers.map((l: FeatureLayer) => { const query = l.createQuery(); query.geometry = bufferGeometry return l.queryFeatures(query); }))

I could make a timeout on the promise, but that way I am not getting any result at all.
I could limit the results after the query has finisehd but this needs the query to fully perform.
Both is not suitable for us.

Best case we are looking for can:
- limit the query running in time and return all results found so far
- limit the query running by a maximum of results and return as soon as the maximum is reached

Hope to see some ideas, thanks.

Re: Layer Query with timout and maxResults

SebastianKrings — Tue, 24 Feb 2026 19:22:07 GMT

Just found the num-property which does exactly what I was looking for, limiting the number of results and (hopefully) breaking the seach.

This indirectly affects the runtime, so a limitation over time may be optional.

Full code:

Re: Layer Query with timout and maxResults

YannCabon — Wed, 25 Feb 2026 01:44:30 GMT

Hi Sebastian,

If possible, instead of creating a buffer geometry yourself, use the Query.distance and Query.unit to send the buffer parameters to the server and let it do it.