Deserialize Complex Json to object using Marshmallow

[tlopezdh]

Hello, I am trying to deserialize json into an object that has nested objects within it.

I am able to deserialize the json into the root level object and the rest of the objects do have values, but I can't go further into the structure.

For example

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class CustomerDTO(BaseDTO)     first_name: str = fields.Str(required=True)     last_name: str = fields.Str(required=True)     address: AddressDTO = fields.Nested(AddressDTOSchema, required=True)   class CustomerDTOSchema(Schema, CustomerDTO)     pass   class AddressDTO(BaseDTO)     street_name_one: str = fields.Str(required=True)     street_name_two: str = fields.Str(required=False)     city: str = fields.Str(required=True)     state: str = fields.Str(required=True)     zip_code: str = fields.Str(required=True)   class AddressDTOSchema(Schema, AddressDTO)     pass

If I run something like

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customer_data = request.get_json() customer_dto_schema = CustomerSchema().load(customer_data) customer_dto = CustomerDTO(**customer_dto_schema)   print(customer_dto) #this works fine print(customer_dto.first_name) # this works fine print(customer_dto.address) # this works fine print(custome_dto.address.street_name_one) # I get an error here -> 'dict' object has no attribute 'street_name_one'

How can I have this cascade down into the nested objects?

[ibreeden]

Then you have to inspect what request.get_json() gives as a result.

[tlopezdh]

Then you have to inspect what request.get_json() gives as a result.

The request_json gives me this

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{   'first_name': 'John',   'last_name': 'Doe',   'address': {     'street_name_one': '123 Main Street',     'street_name_two': 'Apt 123',     'city': 'TestCity',     'state': 'TX',     'zip_code': '12345'    } }