Request Body

Request bodies are typically used with “create” and “update” operations (POST, PUT, PATCH). For example, when creating a resource using POST or PUT, the request body usually contains the representation of the resource to be created.

To declare a request body, you need to use Django Ninja Schema or any Pydantic Schema that suits your need.

I recommend Ninja-Schema

Create your data model

Then you declare your data model as a class that inherits from Schema.

Use standard Python types for all the attributes:

from ninja import Schema, constants
from ninja_extra import api_controller, route


class Item(Schema):
    name: str
    description: str = None
    price: float
    quantity: int


@api_controller(tags=['My Operations'], auth=constants.NOT_SET, permissions=[])
class MyAPIController:
    @route.post("/items")
    def create(self, item: Item):
        return item

Note: if you use None as the default value for an attribute, it will become optional in the request body. For example, this model above declares a JSON "object" (or Python dict) like:

{
    "name": "Katana",
    "description": "An optional description",
    "price": 299.00,
    "quantity": 10
}

...as description is optional (with a default value of None), this JSON "object" would also be valid:

{
    "name": "Katana",
    "price": 299.00,
    "quantity": 10
}