Save list of WebMaps as json file using ArcGIS API python

Aravinthkumar

Hello Everyone, 

I have list of WebMap with its Item id's, Is is possible to save the items information as JSON file for backup and can be used later to update the WebMap. How can I save the list of WebMap items information as JSON using ArcGIS API python ?? 

Thank you. 

jcarlson

When you get a web map's properties, you can simply use the json module to conver the properties dict to JSON, then write that to a file.

Can you elaborate on what your list looks like? Is it just a list of itemIDs?

Assuming you have a list of ids as strings, you could do something like this:

from arcgis import GIS

gis = GIS('your portal url')
maps = ['list', 'of', 'itemids']
out_dir = 'output directory'

for m in maps:
    prop = gis.content.get(m).get_data()
    
    with open(f'{out_dir}/{m}.json', 'w') as file:
        file.write(json.dumps(prop))

 

Which results in something like the following (ignore that 'test.gdb' item):

Any of which, if you opened up, would have the full JSON of the web map.