I think your syntax is wrong? If you look at the blog, orderByFields should be added to the URL.
I copied the blow text from the blog:
Refining point-in-polygon queries using extra parameters
On top of the well defined parameters you can pass to the getRecord and getRecordAt operations, you can also pass extra parameters to the feature layer url to perform some more advanced queries. For example:
- distance: This parameter allows you to buffer the input geometry (geopoint) to find polygons within a given distance. By default, the distance units come in meters, but you can also specify other units. For example, the following expression will apply a buffer of 1600 feet to the provided location (geopoint) and find any intersecting polygons in the critical habitats layer.
pulldata("@layer", "getRecordAt", "https://services.arcgis.com/QVENGdaPbd4LUkLV/ArcGIS/rest/services/USFWS_Critical_Habitat/FeatureServ...?distance=1600&units=esriSRUnit_Foot", ${location})
I highlighted in blue the key part where the distance and units are specified. These extra parameters are added to the URL. You need to add a question mark (?) to start adding extra parameters and then separate them with an ampersand symbol (&).
- gdbVersion: This parameter is useful if you want to query a versioned multi-user geodatabase feature layer.
- orderByFields: If you expect your query to return more than one value, you can use this parameter to sort the results. For example, say you use getRecord to get all tickets submitted by a user. You can use orderByFields to sort all tickets by date in descending order. This will make your getRecord operation to give you back the latest ticket submitted.
- outStatistics and groupByFieldsForStatistics: Ideal when you want to retrieve stats from your layer, rather than a unique record or value. This is how, for example, you will want to get a count of records in a layer.
Check the Query (Feature layer) help topic to learn more about all the extra parameters you can use. The Request Parameters section in this help topic describes the parameters that you cannot use.
