(Partial) keyword argument forwarding
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Assessment
- Difficulty
- 5/5
- Estimated time
- Over a week
- Newbie friendliness
- 25/100
- Issue type
- Feature
- Clarity
- Mostly clear
- Activity status
- Stale
- Tech stack
- python
- Domain
- developer-experience
Research direction
Start by reading the related issue #1000 and the ParamSpec/Concatenate example in this issue. Compare the desired Ariadne middleware signature with current keyword-argument forwarding behavior; done means the requested partial forwarding is supported without requiring the missing positional component, with corresponding typing behavior established.
Written by the indexing model from the issue text.
Description
Split from #1000.
I have a similar use case with Ariadne middleware functions, but with kwargs. In Ariadne, a "resolver" function takes two positional arguments and a varying number of keyword arguments that depend on the API the resolver implements. As the name implies, a middleware function sits between Ariadne and the resolver function and forwards arguments.
Ideally, I would like to type a middleware function as follows:
_P = ParamSpec("_P")
_R = TypeVar("_R")
_T = TypeVar("_T")
def foo_middleware(
resolver: Callable[Concatenate[_T, GraphQLResolveInfo, _P], _R],
obj: _T,
info: GraphQLResolveInfo,
/,
**kwargs: _P.kwargs,
) -> _R:
...
return resolver(obj, info, **kwargs)
But currently this isn't possible, because _P.args is "missing".
- Dominant language
- Python
- Stars
- 1.8k
- Forks
- 302
- Avg merge
- 23h
- Merged PRs (30d)
- 8
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