Creating custom pop-up attribute expressions using ArcGIS API for Python

Question

I'm trying to use python to create a custom pop-up attribute expression in an ArcGIS Online Web Map, but I'm running into some issues. Here is the python code I am running in an ArcGIS Pro Notebook: import arcgis #Connect to ArcGIS Online using active portal in ArcGIS Pro gis = arcgis.gis.GIS("pro") #Get web map, and create a custom attribute expression wm_item = gis.content.get("84a22dc69c57437d97292a12f05cf4d7") wm_object = arcgis.mapping.WebMap(wm_item) wm_object.layers[0].popupInfo.expressionInfos = [{ "name": "expr1", "title": "test", "expression": "'test'", "returnType": "text" }] #Update web map wm_object.update() #Check to see if web map updated wm_object.layers[0].popupInfo.expressionInfos‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ The code appears to be working correctly, as I can see the expression I created when I open the web map's "configure pop-up" settings in a web browser: However, when I click on a feature in the web map, the custom attribute I created is no where to be found: Anyone know how to fix this?

TaylorCarnell1 · Answer

I have the same issue. Likely related to bug 000139253

Workaround is to append your expressions to fieldInfos

field1 = {
    "fieldName": "expression/expr1",
    "visible": "true"
}
field2 = {
    "fieldName": "expression/expr2",
    "visible": "true"
}

field_info = wm_object.layers[0].popupInfo.fieldInfos   
field_info.extend([field1,field2])
wm_object.layers[0].popupInfo.fieldInfos = field_info

# #Update web map
wm_object.update()