i am trying convert json string to model
then it is easy to get value with .
i have checked another question
but different, my json sting looks like,
{
"id":"123",
"name":"name",
"key":{
"id":"345",
"des":"des"
},
}
i prefer to use 2 class like,
class A:
id = ''
name = ''
key = new B()
class B:
id = ''
des = ''
There are few libraries that might help:
For easier cases you can also use something from standard library like
In order to do that you should provide your custom callback as an object_hook argument to the json.loads function.
object_hookis an optional function that will be called with the result of any object literal decode (adict). The return value ofobject_hookwill be used instead of thedict. This feature can be used to implement custom decoders (e.g. JSON-RPC class hinting).
Consider using collections.namestuple subclasses:
json_str = '''
{
"id":"123",
"name":"name",
"key":{
"id":"345",
"des":"des"
}
}'''
B = collections.namedtuple('B', 'id des')
A = collections.namedtuple('A', 'id name key')
def make_models(o):
if 'key' in o:
return A(o['id'], o['name'], B(id=o['key']['id'], des=o['key']['des']))
else:
return o
result = json.loads(json_str, object_hook=make_models)
print(type(result)) # outputs: <class '__main__.A'>
print(result.id) # outputs: 123
print(result.key.id) # outputs: 345
collections.namedtuple('B', 'id des') : id and des are properties. Add new properties in same wayclass or str, and how about i got 100 properties.