Added modified version of fastapis jsonable_encoder due to pending me…

…rges

see: tiangolo/fastapi#2606
see: tiangolo/fastapi#2061

ensysmod/utils/__init__.py

@@ -0,0 +1 @@
+from .encoders import jsonable_encoder

ensysmod/utils/encoders.py

@@ -0,0 +1,161 @@
+import dataclasses
+from collections import defaultdict
+from enum import Enum
+from pathlib import PurePath
+from types import GeneratorType
+from typing import Any, Callable, Dict, List, Optional, Set, Tuple, Union
+
+from pydantic import BaseModel
+from pydantic.json import ENCODERS_BY_TYPE
+
+SetIntStr = Set[Union[int, str]]
+DictIntStrAny = Dict[Union[int, str], Any]
+
+
+def generate_encoders_by_class_tuples(
+    type_encoder_map: Dict[Any, Callable[[Any], Any]]
+) -> Dict[Callable[[Any], Any], Tuple[Any, ...]]:
+    encoders_by_class_tuples: Dict[Callable[[Any], Any], Tuple[Any, ...]] = defaultdict(
+        tuple
+    )
+    for type_, encoder in type_encoder_map.items():
+        encoders_by_class_tuples[encoder] += (type_,)
+    return encoders_by_class_tuples
+
+
+encoders_by_class_tuples = generate_encoders_by_class_tuples(ENCODERS_BY_TYPE)
+
+
+def jsonable_encoder(
+    obj: Any,
+    include: Optional[Union[SetIntStr, DictIntStrAny]] = None,
+    exclude: Optional[Union[SetIntStr, DictIntStrAny]] = None,
+    by_alias: bool = True,
+    exclude_unset: bool = False,
+    exclude_defaults: bool = False,
+    exclude_none: bool = False,
+    custom_encoder: Dict[Any, Callable[[Any], Any]] = None,
+    sqlalchemy_safe: bool = True,
+) -> Any:
+    if include is not None and not isinstance(include, (set, dict)):
+        include = set(include)
+    if exclude is not None and not isinstance(exclude, (set, dict)):
+        exclude = set(exclude)
+
+    if custom_encoder:
+        if type(obj) in custom_encoder:
+            return custom_encoder[type(obj)](obj)
+        else:
+            for encoder_type, encoder in custom_encoder.items():
+                if isinstance(obj, encoder_type):
+                    return encoder(obj)
+
+    if isinstance(obj, BaseModel):
+        encoder = getattr(obj.__config__, "json_encoders", {})
+        if custom_encoder:
+            encoder.update(custom_encoder)
+        obj_dict = obj.dict(
+            include=include,  # type: ignore # in Pydantic
+            exclude=exclude,  # type: ignore # in Pydantic
+            by_alias=by_alias,
+            exclude_unset=exclude_unset,
+            exclude_none=exclude_none,
+            exclude_defaults=exclude_defaults
+        )
+        if "__root__" in obj_dict:
+            obj_dict = obj_dict["__root__"]
+        return jsonable_encoder(
+            obj_dict,
+            exclude_none=exclude_none,
+            exclude_defaults=exclude_defaults,
+            custom_encoder=encoder,
+            sqlalchemy_safe=sqlalchemy_safe,
+        )
+    if dataclasses.is_dataclass(obj):
+        return dataclasses.asdict(obj)
+    if isinstance(obj, Enum):
+        return obj.value
+    if isinstance(obj, PurePath):
+        return str(obj)
+    if isinstance(obj, (str, int, float, type(None))):
+        return obj
+    if isinstance(obj, dict):
+        encoded_dict = {}
+        allowed_keys = set(obj.keys())
+        if include is not None:
+            allowed_keys &= include
+        if exclude is not None:
+            allowed_keys -= exclude
+        for key, value in obj.items():
+            if (
+                (
+                    not sqlalchemy_safe
+                    or (not isinstance(key, str))
+                    or (not key.startswith("_sa"))
+                )
+                and (value is not None or not exclude_none)
+                and key in allowed_keys
+            ):
+                encoded_key = jsonable_encoder(
+                    key,
+                    by_alias=by_alias,
+                    exclude_unset=exclude_unset,
+                    exclude_none=exclude_none,
+                    custom_encoder=custom_encoder,
+                    sqlalchemy_safe=sqlalchemy_safe,
+                )
+                encoded_value = jsonable_encoder(
+                    value,
+                    by_alias=by_alias,
+                    exclude_unset=exclude_unset,
+                    exclude_none=exclude_none,
+                    custom_encoder=custom_encoder,
+                    sqlalchemy_safe=sqlalchemy_safe,
+                )
+                encoded_dict[encoded_key] = encoded_value
+        return encoded_dict
+    if isinstance(obj, (list, set, frozenset, GeneratorType, tuple)):
+        encoded_list = []
+        for item in obj:
+            encoded_list.append(
+                jsonable_encoder(
+                    item,
+                    include=include,
+                    exclude=exclude,
+                    by_alias=by_alias,
+                    exclude_unset=exclude_unset,
+                    exclude_defaults=exclude_defaults,
+                    exclude_none=exclude_none,
+                    custom_encoder=custom_encoder,
+                    sqlalchemy_safe=sqlalchemy_safe,
+                )
+            )
+        return encoded_list
+
+    if type(obj) in ENCODERS_BY_TYPE:
+        return ENCODERS_BY_TYPE[type(obj)](obj)
+    for encoder, classes_tuple in encoders_by_class_tuples.items():
+        if isinstance(obj, classes_tuple):
+            return encoder(obj)
+
+    errors: List[Exception] = []
+    try:
+        data = dict(obj)
+    except Exception as e:
+        errors.append(e)
+        try:
+            data = vars(obj)
+        except Exception as e:
+            errors.append(e)
+            raise ValueError(errors)
+    return jsonable_encoder(
+        data,
+        include=include,
+        exclude=exclude,
+        by_alias=by_alias,
+        exclude_unset=exclude_unset,
+        exclude_defaults=exclude_defaults,
+        exclude_none=exclude_none,
+        custom_encoder=custom_encoder,
+        sqlalchemy_safe=sqlalchemy_safe,
+    )