Update json nodes in Python using jsonpath

Question

I\'m trying to modify json data based on a jsonpath expression:

{
    \"SchemeId\": 10,
    \"nominations\": [
        {
            \"nominationId\": 1
                 


        

Answer 1

I figured this out so I can share here. The update() method changes the values.

from jsonpath_ng import jsonpath, parse
import json
data = json.loads('''{"SchemeId": 10, "nominations": [ { "nominationId": 1 } ] }''')
jsonpath_expr = parse('$.SchemeId')
jsonpath_expr.find(data)
jsonpath_expr.update(data, 11)
print(json.dumps(data, indent=2))