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

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

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

{ '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' } }