default_resolver is not called when type implements an interface
Describe the Bug
There's an example in strawberry docs that shows how to return a dict from a resolver and get it automatically converted to a GraphQL type. It does not work, when returned type implements an interface.
System Information
- Operating system: MacOS
- Strawberry version (if applicable): 0.247.2
Additional Context
Reproduction:
def custom_resolver(obj, field):
try:
return obj[field]
except (KeyError, TypeError):
return getattr(obj, field)
@strawberry.interface
class UserInterface:
name: str
@strawberry.type
class Client(UserInterface):
companyName: str
@strawberry.type
class Query:
def user(self, info) -> UserInterface: # this won't type check, but will work at runtime
return {"name": "Patrick", "companyName": "company", "__typename": "Client"}
schema = strawberry.Schema(
query=Query, types=[Client], config=StrawberryConfig(default_resolver=custom_resolver)
)It does not work when type hint on function return type is either UserInterface nor Client. Client needs to stop implementing interface for it to start working.
I've checked it with debugger and when it implements the interface it does not even go into the custom_resolver
strawberry-graphql / strawberry
A GraphQL library for Python that leverages type annotations 🍓
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