0.240.0.mdx

slug	breaking-changes/0.240.0
title	0.240.0 Breaking Changes

v0.240.0 updates Schema.subscribe's signature

In order to support schema extensions in subscriptions and errors that can be raised before the execution of the subscription, we had to update the signature of Schema.subscribe.

Previously it was:

async def subscribe(
    self,
    query: str,
    variable_values: Optional[Dict[str, Any]] = None,
    context_value: Optional[Any] = None,
    root_value: Optional[Any] = None,
    operation_name: Optional[str] = None,
) -> Union[AsyncIterator[GraphQLExecutionResult], GraphQLExecutionResult]:

Now it is:

async def subscribe(
    self,
    query: Optional[str],
    variable_values: Optional[Dict[str, Any]] = None,
    context_value: Optional[Any] = None,
    root_value: Optional[Any] = None,
    operation_name: Optional[str] = None,
) -> Union[AsyncGenerator[ExecutionResult, None], PreExecutionError]: