This release fixes argument and input field defaults that are instances of an
input type:
@strawberry.input
class Filter:
limit: int = 10
@strawberry.type
class Query:
@strawberry.field
def items(self, filter: Filter = Filter(limit=5)) -> list[Item]: ...Executing a field that used such a default failed with
argument of type 'Filter' is not iterable, and introspection queries failed
with Invalid default value. The same happened for input fields whose
default_factory returns an input instance.
Strawberry now converts these defaults to GraphQL input values when it builds
the schema, so introspection shows them, and resolvers get an instance built from
the default for every request, like when the client sends the value. Defaults
given as dicts keyed by Python names, like {"page_size": 5}, and GlobalID
defaults are converted too, instead of being ignored or failing when the field
is executed.
Printed and introspected defaults leave out None values that are the field's
default, and keep an explicit null only when it changes the value, for example
for a field whose default isn't None.
This release was contributed by @patrick91 in #4654
Additional contributors: @bellini666