Fields for simple requests

There are cases when having a request model is undesired. For example, when a call takes a handful of simple parameters of scalar types.

You can map such parameters with the Field marker, which would mark them as separate root fields of the payload:

field.py

from httpx import Client
from pydantic import BaseModel
from typing_extensions import Annotated, Protocol

from combadge.core.binder import bind
from combadge.support.http.markers import Field, http_method, path
from combadge.support.httpx.backends.sync import HttpxBackend


class Response(BaseModel):
    data: str


class SupportsHttpbin(Protocol):
    @http_method("POST")
    @path("/anything")
    def post(
        self,
        *,
        foo: Annotated[str, Field("foobar")] = "quuuuux",
    ) -> Response:
        raise NotImplementedError


backend = HttpxBackend(Client(base_url="https://httpbin.org"))
service = bind(SupportsHttpbin, backend)

response = service.post()
assert response.data == r"""{"foobar": "quuuuux"}"""