I am using the ArcGIS Server REST API to display MapServer data that supports dynamic layers. I know how to restyle line and polygon geometry when my code calls for the tiles.
Question: Is it also possible to restyle labels?
The following link displays one tile with label data:
https://services.nationalmap.gov/arcgis/rest/services/govunits/MapServer/export?bboxSR=4326&layers=show:15&size=256,256&imageSR=3857&format=png&transparent=true&dpi=&f=image&bbox=-94.921875,30.751277776257812,-94.21875,30.14512718337613
And here is my call for the same tile where I am trying to make the text magenta:
https://services.nationalmap.gov/arcgis/rest/services/govunits/MapServer/export?bboxSR=4326&layers=show:15&size=256,256&imageSR=3857&format=png&transparent=true&dpi=&f=image&dynamicLayers=[{'source':{'type':'mapLayer','mapLayerId':15},'drawingInfo':{'labelingInfo':{'symbol':{'color':[255,0,255,255]}}}}]&bbox=-94.921875,30.751277776257812,-94.21875,30.14512718337613
However my call results in the following nastygram:
{"error":{"code":400,"message":"Invalid dynamic layer definition for labeling classes.","details":[]}}
Can anyone shed light and show where I have gone astray in the syntax?
Joseph Elfelt
https://mappingsupport.com
