update dataclass for backward-compat

1 year ago · 217bf8f2b9
1 changed files with 1 additions and 0 deletions
--- a/fastapi/_compat.py
+++ b/fastapi/_compat.py
@ -347,6 +347,7 @@ else:
    @dataclass
    class GenerateJsonSchema:  # type: ignore[no-redef]
        ref_template: str
+        by_alias: bool = True

    class PydanticSchemaGenerationError(Exception):  # type: ignore[no-redef]
        pass