Retrieve the JSON of a specific layer in a feature service using ArcGIS API for Python

Summary

The JSON of a feature service layer contains information such as the layer's geometry type, min and max scales, and spatial reference. The Python script provided in this article can be used to access the JSON of a feature service layer.

Procedure

1. Import the necessary modules.

import arcgis

2. Specify the credentials to connect to the portal.

gis = arcgis.gis.GIS("<portal_URL>", "<username>", "<password>", verify_cert=False)

3. Specify the item ID and layer ID of the service to be queried.

item = gis.content.get("<portal_itemID>")
resturl = dict(item)["url"]
layerurl = str(resturl) + "/" + str(<item_layerID>)
layer = arcgis.features.FeatureLayer(layerurl)

4. Print the JSON properties.

print(layerurl+"?f=pjson")
print(layer.properties)

The code block below demonstrates the full script.

import arcgis

gis = arcgis.gis.GIS("https://machines.esri.com/portal", "username1", "password1", verify_cert=False)

item = gis.content.get("asd651cqe84c6d51a")
resturl = dict(item)["url"]
layerurl = str(resturl) + "/" + str(0)
layer = arcgis.features.FeatureLayer(layerurl)

print(layerurl+"?f=pjson")
print(layer.properties)

The JSON of the specific feature service layer is returned after running the script.