v1.1.0b1

packages/bthlabs-jsonrpc-core/bthlabs_jsonrpc_core/__init__.py

@@ -1,14 +1,16 @@
 # -*- coding: utf-8 -*-
-# django-jsonrpc-core | (c) 2022-present Tomek Wójcik | MIT License
-from .decorators import register_method  # noqa
-from .exceptions import (  # noqa
+# bthlabs-jsonrpc-core | (c) 2022-present Tomek Wójcik | MIT License
+from .codecs import Codec, JSONCodec  # noqa: F401
+from .decorators import register_method  # noqa: F401
+from .exceptions import (  # noqa: F401
     BaseJSONRPCError,
     JSONRPCAccessDeniedError,
     JSONRPCInternalError,
     JSONRPCParseError,
     JSONRPCSerializerError,
 )
-from .executor import Executor  # noqa
-from .serializer import JSONRPCSerializer  # noqa
+from .executor import Executor  # noqa: F401
+from .registry import MethodRegistry  # noqa: F401
+from .serializer import JSONRPCSerializer  # noqa: F401
 
-__version__ = '1.0.0'
+__version__ = '1.1.0b1'

packages/bthlabs-jsonrpc-core/bthlabs_jsonrpc_core/codecs.py

@@ -0,0 +1,64 @@
+# -*- coding: utf-8 -*-
+# bthlabs-jsonrpc-core | (c) 2022-present Tomek Wójcik | MIT License
+from __future__ import annotations
+
+import abc
+import json
+import typing
+
+
+class Codec(abc.ABC):
+    """Base class for codecs."""
+
+    # pragma mark - Abstract public interface
+
+    @abc.abstractmethod
+    def decode(self, payload: str | bytes, **decoder_kwargs) -> typing.Any:
+        """
+        Decode the *payload*. *decoder_kwargs* are implementation specific.
+
+        Subclasses must implement this method.
+        """
+        ...
+
+    @abc.abstractmethod
+    def encode(self, payload: typing.Any, **encoder_kwargs) -> str:
+        """
+        Encode the *payload*. *encoder_kwargs* are implementation specific.
+
+        Subclasses must implement this method.
+        """
+        ...
+
+    @abc.abstractmethod
+    def get_content_type(self) -> str:
+        """
+        Return the MIME type for the encoded content.
+
+        Subclasses must implement this method.
+        """
+        ...
+
+
+class JSONCodec(Codec):
+    """JSON codec"""
+
+    # pragma mark - Public interface
+
+    def decode(self, payload: str | bytes, **decoder_kwargs) -> typing.Any:
+        """
+        Decode *payload* using :py:func:`json.loads`. *decoder_kwargs* will
+        be passed verbatim to the decode function.
+        """
+        return json.loads(payload, **decoder_kwargs)
+
+    def encode(self, payload: typing.Any, **encoder_kwargs) -> str:
+        """
+        Encode *payload* using :py:func:`json.dumps`. *encoder_kwargs* will
+        be passed verbatim to the encode function.
+        """
+        return json.dumps(payload, **encoder_kwargs)
+
+    def get_content_type(self):
+        """Returns ``application/json``."""
+        return 'application/json'

packages/bthlabs-jsonrpc-core/bthlabs_jsonrpc_core/decorators.py

@@ -1,12 +1,14 @@
 # -*- coding: utf-8 -*-
-# django-jsonrpc-core | (c) 2022-present Tomek Wójcik | MIT License
+# bthlabs-jsonrpc-core | (c) 2022-present Tomek Wójcik | MIT License
+from __future__ import annotations
+
 import typing
 
 from bthlabs_jsonrpc_core.registry import MethodRegistry
 
 
 def register_method(method: str,
-                    namespace: typing.Optional[str] = None,
+                    namespace: str | None = None,
                     ) -> typing.Callable:
     """
     Registers the decorated function as JSONRPC *method* in *namespace*.
@@ -28,8 +30,8 @@ def register_method(method: str,
         registry = MethodRegistry.shared_registry()
         registry.register_method(namespace, method, handler)
 
-        handler.jsonrpc_method = method
-        handler.jsonrpc_namespace = namespace
+        handler.jsonrpc_method = method  # type: ignore[attr-defined]
+        handler.jsonrpc_namespace = namespace  # type: ignore[attr-defined]
         return handler
 
     return decorator

packages/bthlabs-jsonrpc-core/bthlabs_jsonrpc_core/exceptions.py

@@ -1,5 +1,8 @@
 # -*- coding: utf-8
-# django-jsonrpc-core | (c) 2022-present Tomek Wójcik | MIT License
+# bthlabs-jsonrpc-core | (c) 2022-present Tomek Wójcik | MIT License
+from __future__ import annotations
+
+
 class BaseJSONRPCError(Exception):
     """
     Base class for JSONRPC exceptions.
@@ -16,6 +19,8 @@ class BaseJSONRPCError(Exception):
     def __init__(self, data=None):
         self.data = data
 
+    # pragma mark - Public interface
+
     def to_rpc(self) -> dict:
         """Returns payload for :py:class:`JSONRPCSerializer`."""
         result = {

packages/bthlabs-jsonrpc-core/bthlabs_jsonrpc_core/executor.py

@@ -1,11 +1,13 @@
 # -*- coding: utf-8 -*-
-# django-jsonrpc-core | (c) 2022-present Tomek Wójcik | MIT License
-from contextlib import contextmanager
-from dataclasses import dataclass
-import json
+# bthlabs-jsonrpc-core | (c) 2022-present Tomek Wójcik | MIT License
+from __future__ import annotations
+
+import contextlib
+import dataclasses
 import logging
 import typing
 
+from bthlabs_jsonrpc_core.codecs import Codec, JSONCodec
 from bthlabs_jsonrpc_core.exceptions import (
     BaseJSONRPCError,
     JSONRPCInternalError,
@@ -28,6 +30,9 @@ class Executor:
     *namespace* will be used to look up called methods in the registry. If
     omitted, it'll fall back to the default namespace.
 
+    *codec* will be used to deserialize the request payload. If omitted,
+    it'll fall back to :py:class:`JSONCodec`.
+
     Example:
 
     .. code-block:: python
@@ -51,7 +56,7 @@ class Executor:
     # The serializer registry class to use for response serialization.
     serializer = JSONRPCSerializer
 
-    @dataclass
+    @dataclasses.dataclass
     class CallContext:
         """
         The context of a single call.
@@ -72,7 +77,7 @@ class Executor:
         kwargs: dict
 
         #: Call result
-        result: typing.Optional[typing.Any] = None
+        result: typing.Any = None
 
         @classmethod
         def invalid_context(cls):
@@ -88,7 +93,7 @@ class Executor:
                 self.kwargs is not None,
             ))
 
-    @dataclass
+    @dataclasses.dataclass
     class ExecuteContext:
         """
         The context of an execute call.
@@ -100,13 +105,16 @@ class Executor:
         results: list
 
         #: The serializer instance.
-        serializer: typing.Optional[JSONRPCSerializer] = None
+        serializer: JSONRPCSerializer | None = None
+
+    def __init__(self,
+                 namespace: str | None = None,
+                 codec: Codec | None = None):
+        self.namespace = namespace or MethodRegistry.DEFAULT_NAMESPACE
+        self.codec = codec or JSONCodec()
 
     # pragma mark - Private interface
 
-    def __init__(self, namespace=None):
-        self.namespace = namespace or MethodRegistry.DEFAULT_NAMESPACE
-
     def get_internal_handler(self, method: str) -> typing.Callable:
         """
         Returns the internal handler for *method* or raises
@@ -194,7 +202,7 @@ class Executor:
 
     def process_results(self,
                         results: list,
-                        ) -> typing.Optional[typing.Union[list, dict]]:
+                        ) -> typing.Union[list, dict] | None:
         """
         Post-processes the *results* and returns responses.
 
@@ -236,8 +244,10 @@ class Executor:
 
         return responses
 
-    @contextmanager
-    def call_context(self, execute_context: ExecuteContext, call: dict):
+    @contextlib.contextmanager
+    def call_context(self,
+                     execute_context: ExecuteContext,
+                     call: dict) -> typing.Generator[CallContext, None, None]:
         """
         The call context manager. Yields ``CallContext``, which can be
         invalid invalid if there was en error processing the call.
@@ -263,7 +273,9 @@ class Executor:
                 error = exception
             else:
                 LOGGER.error(
-                    f'Error handling RPC method: {method}!',
+                    'Unhandled exception when handling RPC method `%s`: %s',
+                    method,
+                    exception,
                     exc_info=exception,
                 )
                 error = JSONRPCInternalError(str(exception))
@@ -273,8 +285,8 @@ class Executor:
             else:
                 execute_context.results.append((call, context.result))
 
-    @contextmanager
-    def execute_context(self):
+    @contextlib.contextmanager
+    def execute_context(self) -> typing.Generator[ExecuteContext, None, None]:
         """
         The execution context. Yields ``ExecuteContext``.
 
@@ -297,7 +309,7 @@ class Executor:
 
     # pragma mark - Public interface
 
-    def deserialize_data(self, data: bytes) -> typing.Any:
+    def deserialize_data(self, data: str | bytes) -> typing.Any:
         """
         Deserializes *data* and returns the result.
 
@@ -306,9 +318,13 @@ class Executor:
         response object conforms to the spec.
         """
         try:
-            return json.loads(data)
+            return self.codec.decode(data)
         except Exception as exception:
-            LOGGER.error('Error deserializing RPC call!', exc_info=exception)
+            LOGGER.error(
+                'Unhandled exception when deserializing RPC call: %s',
+                exception,
+                exc_info=exception,
+            )
             raise JSONRPCParseError() from exception
 
     def list_methods(self, *args, **kwargs) -> list[str]:
@@ -368,9 +384,7 @@ class Executor:
         """
         pass
 
-    def execute(self,
-                payload: typing.Any,
-                ) -> typing.Optional[JSONRPCSerializer]:
+    def execute(self, payload: typing.Any) -> JSONRPCSerializer | None:
         """
         Executes the JSONRPC request in *payload*.
 

packages/bthlabs-jsonrpc-core/bthlabs_jsonrpc_core/ext/jwt.py

@@ -0,0 +1,152 @@
+# -*- coding: utf-8 -*-
+# bthlabs-jsonrpc-core | (c) 2022-present Tomek Wójcik | MIT License
+from __future__ import annotations
+
+import datetime
+import dataclasses
+import typing
+
+from jose import jwt
+from jose.constants import ALGORITHMS
+from jose.jwk import (  # noqa: F401
+    ECKey,
+    HMACKey,
+    RSAKey,
+)
+import pytz
+
+from bthlabs_jsonrpc_core.codecs import Codec
+
+
+@dataclasses.dataclass
+class KeyPair:
+    """
+    Key pair used to verify and sign JWTs.
+
+    For HMAC, both *decode_key* and *encode_key* should be `HMACKey` instances,
+    wrapping the respective secrets.
+
+    For RSA and ECDSA, *decode_key* must be a public key for signature
+    verification. *encode_key* must be a private key for signing.
+    """
+    decode_key: ECKey | HMACKey | RSAKey
+    encode_key: ECKey | HMACKey | RSAKey
+
+
+@dataclasses.dataclass
+class TimeClaims:
+    """Time claims container."""
+    iat: datetime.datetime
+    nbf: datetime.datetime | None
+    exp: datetime.datetime | None
+
+    def as_claims(self) -> dict:
+        """
+        Return dict representation of the claims suitable for including in a
+        JWT.
+        """
+        result = {
+            'iat': self.iat,
+        }
+
+        if self.nbf is not None:
+            result['nbf'] = self.nbf
+
+        if self.exp is not None:
+            result['exp'] = self.exp
+
+        return result
+
+
+class JWTCodec(Codec):
+    """
+    JWT codec. Uses keys specified in *key_pair* when decoding and encoding
+    tokens.
+
+    *algorithm* specifies the signature algorithm to use. Defaults to
+    :py:attr:`ALGORITHMS.HS256`.
+
+    *issuer* specifies the ``iss`` claim. Defaults to ``None`` for no issuer.
+
+    *ttl* specifies the token's TTL. It'll be used to generate the ``exp``
+    claim. Defaults to ``None`` for non-expiring token.
+
+    *include_nbf* specifies if the ``nbf`` claim should be added to the token.
+    """
+    def __init__(self,
+                 key_pair: KeyPair,
+                 *,
+                 algorithm: str = ALGORITHMS.HS256,
+                 issuer: str | None = None,
+                 ttl: datetime.timedelta | None = None,
+                 include_nbf: bool = True):
+        super().__init__()
+        self.key_pair = key_pair
+        self.algorithm = algorithm
+        self.issuer = issuer
+        self.ttl = ttl
+        self.include_nbf = include_nbf
+
+    # pragma mark - Private interface
+
+    def get_time_claims(self) -> TimeClaims:
+        """
+        Get time claims.
+
+        :meta: private
+        """
+        now = datetime.datetime.now().astimezone(pytz.utc)
+
+        exp: datetime.datetime | None = None
+        if self.ttl is not None:
+            exp = now + self.ttl
+
+        return TimeClaims(
+            iat=now,
+            nbf=now if self.include_nbf is True else None,
+            exp=exp,
+        )
+
+    # pragma mark - Public interface
+
+    def decode(self, payload: str | bytes, **decoder_kwargs) -> typing.Any:
+        """
+        Decode payload using :py:func:`jose.jwt.decode`. *decoder_kwargs* will
+        be passed verbatim to the decode function.
+
+        Consult *python-jose* documentation for more information.
+        """
+        decoded_payload = jwt.decode(
+            payload,
+            self.key_pair.decode_key,
+            algorithms=[self.algorithm],
+            **decoder_kwargs,
+        )
+
+        return decoded_payload['jsonrpc']
+
+    def encode(self, payload: typing.Any, **encoder_kwargs) -> str:
+        """
+        Encode payload using :py:func:`jose.jwt.encode`. *encoder_kwargs* will
+        be passed verbatim to the encode function.
+
+        Consult *python-jose* documentation for more information.
+        """
+        claims: dict = {
+            **self.get_time_claims().as_claims(),
+            'jsonrpc': payload,
+        }
+
+        if self.issuer is not None:
+            claims['iss'] = self.issuer
+
+        return jwt.encode(
+            claims,
+            self.key_pair.encode_key,
+            algorithm=self.algorithm,
+            **encoder_kwargs,
+        )
+
+    def get_content_type(self) -> str:
+        """Returns ``application/jwt``."""
+        return 'application/jwt'

packages/bthlabs-jsonrpc-core/bthlabs_jsonrpc_core/pytest_plugin/__init__.py

@@ -0,0 +1,3 @@
+# -*- coding: utf-8 -*-
+# bthlabs-jsonrpc-core | (c) 2022-present Tomek Wójcik | MIT License
+from .fixtures import *  # noqa: F401,F403

packages/bthlabs-jsonrpc-core/bthlabs_jsonrpc_core/pytest_plugin/fixtures.py

@@ -0,0 +1,40 @@
+# -*- coding: utf-8 -*-
+# bthlabs-jsonrpc-core | (c) 2022-present Tomek Wójcik | MIT License
+# type: ignore
+from __future__ import annotations
+
+from unittest import mock
+
+import pytest
+
+from bthlabs_jsonrpc_core.codecs import Codec
+
+
+@pytest.fixture
+def fake_custom_codec() -> mock.Mock:
+    return mock.Mock(spec=Codec)
+
+
+@pytest.fixture
+def single_call() -> dict:
+    return {
+        'jsonrpc': '2.0',
+        'id': 'test',
+        'method': 'system.list_methods',
+    }
+
+
+@pytest.fixture
+def batch_calls() -> list:
+    return [
+        {
+            'jsonrpc': '2.0',
+            'id': 'test',
+            'method': 'system.list_methods',
+        },
+        {
+            'jsonrpc': '2.0',
+            'id': 'test2',
+            'method': 'system.list_methods',
+        },
+    ]

packages/bthlabs-jsonrpc-core/bthlabs_jsonrpc_core/registry.py

@@ -1,28 +1,51 @@
 # -*- coding: utf-8 -*-
-# django-jsonrpc-core | (c) 2022-present Tomek Wójcik | MIT License
-class MethodRegistry:
-    INSTANCE = None
-    DEFAULT_NAMESPACE = 'jsonrpc'
+# bthlabs-jsonrpc-core | (c) 2022-present Tomek Wójcik | MIT License
+from __future__ import annotations
 
-    def __init__(self, *args, **kwargs):
+import typing
+
+
+class MethodRegistry:
+    """
+    The method registry. Maps method to handler within a namespace.
+
+    This class is a singleton. Use :py:meth:`MethodRegistry.shared_instance`
+    to get the shared instance.
+    """
+
+    INSTANCE: MethodRegistry | None = None
+
+    #: Default namespace
+    DEFAULT_NAMESPACE: str = 'jsonrpc'
+
+    def __init__(self):
         self.registry = {}
         self.registry[self.DEFAULT_NAMESPACE] = {}
 
+    # pragma mark - Public interface
+
     @classmethod
-    def shared_registry(cls, *args, **kwargs):
+    def shared_registry(cls: type[MethodRegistry]) -> MethodRegistry:
+        """Return the shared instance."""
         if cls.INSTANCE is None:
-            cls.INSTANCE = cls(*args, **kwargs)
+            cls.INSTANCE = cls()
 
         return cls.INSTANCE
 
-    def register_method(self, namespace, method, handler):
+    def register_method(self,
+                        namespace: str,
+                        method: str,
+                        handler: typing.Callable):
+        """Register a *method* with *handler* in a *namespace*."""
         if namespace not in self.registry:
             self.registry[namespace] = {}
 
         self.registry[namespace][method] = handler
 
-    def get_methods(self, namespace):
+    def get_methods(self, namespace) -> list[str]:
+        """Returns list of methods in a *namespace*."""
         return self.registry.get(namespace, {}).keys()
 
-    def get_handler(self, namespace, method):
+    def get_handler(self, namespace, method) -> typing.Callable:
+        """Returns the handler for *method* in *namespace*."""
         return self.registry.get(namespace, {}).get(method, None)

packages/bthlabs-jsonrpc-core/bthlabs_jsonrpc_core/serializer.py

@@ -1,5 +1,7 @@
 # -*- coding: utf-8 -*-
-# django-jsonrpc-core | (c) 2022-present Tomek Wójcik | MIT License
+# bthlabs-jsonrpc-core | (c) 2022-present Tomek Wójcik | MIT License
+from __future__ import annotations
+
 import datetime
 import decimal
 import typing
@@ -62,6 +64,8 @@ class JSONRPCSerializer:
     def __init__(self, data):
         self._data = data
 
+    # pragma mark - Private interface
+
     def is_simple_value(self, value: typing.Any) -> bool:
         """
         Returns ``True`` if *value* is a simple value.
@@ -172,6 +176,8 @@ class JSONRPCSerializer:
 
         return value
 
+    # pragma mark - Public interface
+
     @property
     def data(self) -> typing.Any:
         """The serialized data."""

packages/bthlabs-jsonrpc-core/docs/source/api.rst

@@ -5,6 +5,15 @@ API Documentation
 
 This section provides the API documentation for BTHLabs JSONRPC - Core.
 
+Codecs
+------
+
+.. autoclass:: Codec
+    :members:
+
+.. autoclass:: JSONCodec
+    :members:
+
 Decorators
 ----------
 
@@ -29,15 +38,23 @@ Exceptions
 .. autoexception:: JSONRPCSerializerError
     :members:
 
-Executor
---------
+Executors
+---------
 
 .. autoclass:: Executor
     :members:
 
 
-Serializer
+Registries
 ----------
 
+
+.. autoclass:: MethodRegistry
+    :members:
+
+
+Serializers
+-----------
+
 .. autoclass:: JSONRPCSerializer
     :members:

packages/bthlabs-jsonrpc-core/docs/source/conf.py

@@ -1,3 +1,4 @@
+# type: ignore
 # Configuration file for the Sphinx documentation builder.
 #
 # This file only contains a selection of the most common options. For a full
@@ -20,10 +21,10 @@ sys.path.insert(0, os.path.abspath('../../'))
 project = 'BTHLabs JSONRPC - Core'
 copyright = '2022-present Tomek Wójcik'
 author = 'Tomek Wójcik'
-version = '1.0.0'
+version = '1.1.0'
 
 # The full version, including alpha/beta/rc tags
-release = '1.0.0'
+release = '1.1.0b1'
 
 
 # -- General configuration ---------------------------------------------------

packages/bthlabs-jsonrpc-core/docs/source/ext.rst

@@ -0,0 +1,51 @@
+Extensions
+==========
+
+.. module:: bthlabs_jsonrpc_core.ext
+
+This section provides documentation for built-in extensions for BTHLabs
+JSONRPC - Core.
+
+JWT Codec
+---------
+
+This extension implements codec for using JWT instead of JSON for request and
+response payloads.
+
+**Installation**
+
+Since JWT has external dependencies it needs to explicitly named to be
+installed.
+
+.. code-block::
+
+    $ pip install bthlabs_jsonrpc_core[jwt]
+
+This will install ``python-jose[cryptography]``. Consult *python-jose* docs for
+additional information on supported backends. If you wish to install another
+backend, install *python-jose* accordingly and skip the *jwt* extra when
+installing *bthlabs-jsonrpc-core*.
+
+**API**
+
+.. data:: bthlabs_jsonrpc_core.ext.jwt.ALGORITHMS
+
+    Supported algorithms. Directly exported from :py:data:`jose.constants.ALGORITHMS`.
+
+.. class:: bthlabs_jsonrpc_core.ext.jwt.ECKey
+
+    ECDSA key wrapper. Directly exported from :py:class:`jose.jwk.ECKey`.
+
+.. class:: bthlabs_jsonrpc_core.ext.jwt.HMACKey
+
+    HMAC key wrapper. Directly exported from :py:class:`jose.jwk.HMACKey`.
+
+.. class:: bthlabs_jsonrpc_core.ext.jwt.RSA
+
+    RSA key wrapper. Directly exported from :py:class:`jose.jwk.RSA`.
+
+.. autoclass:: bthlabs_jsonrpc_core.ext.jwt.KeyPair
+    :members:
+
+.. autoclass:: bthlabs_jsonrpc_core.ext.jwt.JWTCodec
+    :members:

packages/bthlabs-jsonrpc-core/docs/source/index.rst

@@ -16,3 +16,4 @@ The *core* package acts as a foundation for framework-specific integrations.
    :maxdepth: 2
 
    api
+   ext

packages/bthlabs-jsonrpc-core/pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "bthlabs-jsonrpc-core"
-version = "1.0.0"
+version = "1.1.0b1"
 description = "BTHLabs JSONRPC - Core"
 authors = ["Tomek Wójcik <contact@bthlabs.pl>"]
 maintainers = ["BTHLabs <contact@bthlabs.pl>"]
@@ -12,15 +12,26 @@ documentation = "https://projects.bthlabs.pl/bthlabs-jsonrpc/core/"
 
 [tool.poetry.dependencies]
 python = "^3.10"
+python-jose = {version = ">=3.3.0,<4.0", optional = true, extras = ["cryptography"]}
+pytz = {version = ">=2023.3.post1", optional = true}
 
-[tool.poetry.dev-dependencies]
-flake8 = "4.0.1"
+[tool.poetry.group.dev.dependencies]
+flake8 = "6.1.0"
 flake8-commas = "2.1.0"
-mypy = "0.950"
-pytest = "7.1.2"
-sphinx = "4.5.0"
-sphinx-rtd-theme = "1.0.0"
+freezegun = "1.4.0"
+mypy = "1.8.0"
+pytest = "7.4.3"
+python-jose = "3.3.0"
+pytz = "2023.3.post1"
+sphinx = "7.2.6"
+sphinx-rtd-theme = "2.0.0"
+
+[tool.poetry.extras]
+jwt = ["python-jose", "pytz"]
+
+[tool.poetry.plugins.pytest11]
+bthlabs_jsonrpc_core = "bthlabs_jsonrpc_core.pytest_plugin"
 
 [build-system]
-requires = ["poetry-core>=1.0.0"]
+requires = ["poetry-core"]
 build-backend = "poetry.core.masonry.api"

packages/bthlabs-jsonrpc-core/setup.cfg

@@ -1,4 +1,12 @@
 [flake8]
-exclude = .venv/,.pytest_cache/
+exclude = .venv/,.mypy_cache/,.pytest_cache/
 ignore = E402
 max-line-length = 119
+
+[mypy]
+
+[mypy-jose.*]
+ignore_missing_imports = true
+
+[mypy-pytz.*]
+ignore_missing_imports = true

packages/bthlabs-jsonrpc-core/tests/codecs/test_JSONCodec.py

@@ -0,0 +1,121 @@
+# -*- coding: utf-8 -*-
+# type: ignore
+from __future__ import annotations
+
+import json
+from unittest import mock
+
+from bthlabs_jsonrpc_core import codecs
+
+
+def test_decode():
+    # Given
+    json_codec = codecs.JSONCodec()
+
+    # When
+    result = json_codec.decode('{"spam": true, "eggs": false}')
+
+    # Then
+    expected_result = {
+        'spam': True,
+        'eggs': False,
+    }
+    assert result == expected_result
+
+
+@mock.patch.object(codecs.json, 'loads')
+def test_decode_decoder_kwargs(mock_json_loads: mock.Mock):
+    # Given
+    mock_json_loads.return_value = 'spam'
+
+    json_codec = codecs.JSONCodec()
+
+    payload = '{"spam": true, "eggs": false}'
+    fake_json_decoder = mock.Mock(spec=json.JSONDecoder)
+    fake_object_hook = mock.Mock()
+    fake_parse_float = mock.Mock()
+    fake_parse_int = mock.Mock()
+    fake_parse_constant = mock.Mock()
+    fake_object_pairs_hook = mock.Mock()
+
+    # When
+    _ = json_codec.decode(
+        payload,
+        cls=fake_json_decoder,
+        object_hook=fake_object_hook,
+        parse_float=fake_parse_float,
+        parse_int=fake_parse_int,
+        parse_constant=fake_parse_constant,
+        object_pairs_hook=fake_object_pairs_hook,
+    )
+
+    # Then
+    mock_json_loads.assert_called_once_with(
+        payload,
+        cls=fake_json_decoder,
+        object_hook=fake_object_hook,
+        parse_float=fake_parse_float,
+        parse_int=fake_parse_int,
+        parse_constant=fake_parse_constant,
+        object_pairs_hook=fake_object_pairs_hook,
+    )
+
+
+def test_encode():
+    # Given
+    json_codec = codecs.JSONCodec()
+
+    # When
+    result = json_codec.encode({'spam': True, 'eggs': False})
+
+    # Then
+    expected_result = '{"spam": true, "eggs": false}'
+    assert result == expected_result
+
+
+@mock.patch.object(codecs.json, 'dumps')
+def test_encode_encoder_kwargs(mock_json_dumps: mock.Mock):
+    # Given
+    mock_json_dumps.return_value = 'spam'
+
+    json_codec = codecs.JSONCodec()
+
+    payload = {"spam": True, "eggs": False}
+    fake_json_encoder = mock.Mock(spec=json.JSONEncoder)
+
+    # When
+    _ = json_codec.encode(
+        payload,
+        skipkeys=False,
+        ensure_ascii=True,
+        check_circular=True,
+        allow_nan=True,
+        cls=fake_json_encoder,
+        indent=2, separators=(':', ','),
+        default='DEFAULT',
+        sort_keys=False,
+    )
+
+    # Then
+    mock_json_dumps.assert_called_once_with(
+        payload,
+        skipkeys=False,
+        ensure_ascii=True,
+        check_circular=True,
+        allow_nan=True,
+        cls=fake_json_encoder,
+        indent=2, separators=(':', ','),
+        default='DEFAULT',
+        sort_keys=False,
+    )
+
+
+def test_get_content_type():
+    # Given
+    json_codec = codecs.JSONCodec()
+
+    # When
+    result = json_codec.get_content_type()
+
+    # Then
+    assert result == 'application/json'

packages/bthlabs-jsonrpc-core/tests/conftest.py

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*-
+# type: ignore
 from unittest import mock
 
 import pytest
@@ -8,15 +9,15 @@ from bthlabs_jsonrpc_core.serializer import JSONRPCSerializer
 
 
 @pytest.fixture
-def fake_method_registry():
+def fake_method_registry() -> mock.Mock:
     return mock.Mock(spec=MethodRegistry)
 
 
 @pytest.fixture
-def fake_handler():
+def fake_handler() -> mock.Mock:
     return mock.Mock()
 
 
 @pytest.fixture
-def fake_rpc_serializer():
+def fake_rpc_serializer() -> mock.Mock:
     return mock.Mock(spec=JSONRPCSerializer)

packages/bthlabs-jsonrpc-core/tests/decorators/test_register_method.py

@@ -1,4 +1,7 @@
 # -*- coding: utf-8 -*-
+# type: ignore
+from __future__ import annotations
+
 from unittest import mock
 
 from bthlabs_jsonrpc_core import decorators
@@ -6,9 +9,9 @@ from bthlabs_jsonrpc_core.registry import MethodRegistry
 
 
 @mock.patch.object(decorators.MethodRegistry, 'shared_registry')
-def test_default_namespace(mock_shared_registry,
-                           fake_method_registry,
-                           fake_handler):
+def test_default_namespace(mock_shared_registry: mock.Mock,
+                           fake_method_registry: mock.Mock,
+                           fake_handler: mock.Mock):
     # Given
     mock_shared_registry.return_value = fake_method_registry
 
@@ -30,9 +33,9 @@ def test_default_namespace(mock_shared_registry,
 
 
 @mock.patch.object(decorators.MethodRegistry, 'shared_registry')
-def test_custom_namespace(mock_shared_registry,
-                          fake_method_registry,
-                          fake_handler):
+def test_custom_namespace(mock_shared_registry: mock.Mock,
+                          fake_method_registry: mock.Mock,
+                          fake_handler: mock.Mock):
     # Given
     mock_shared_registry.return_value = fake_method_registry
 

packages/bthlabs-jsonrpc-core/tests/exceptions/test_BaseJSONRPCError.py

@@ -1,4 +1,7 @@
 # -*- coding: utf-8 -*-
+# type: ignore
+from __future__ import annotations
+
 from bthlabs_jsonrpc_core import exceptions
 
 

packages/bthlabs-jsonrpc-core/tests/executor/test_Executor.py

@@ -1,46 +1,25 @@
 # -*- coding: utf-8 -*-
+# type: ignore
+from __future__ import annotations
+
 import json
 from unittest import mock
 
 import pytest
 
 from bthlabs_jsonrpc_core import exceptions, executor
+from bthlabs_jsonrpc_core.codecs import JSONCodec
 from bthlabs_jsonrpc_core.registry import MethodRegistry
 from bthlabs_jsonrpc_core.serializer import JSONRPCSerializer
 
 
 @pytest.fixture
-def single_call():
-    return {
-        'jsonrpc': '2.0',
-        'id': 'test',
-        'method': 'test',
-    }
-
-
-@pytest.fixture
-def batch_calls():
-    return [
-        {
-            'jsonrpc': '2.0',
-            'id': 'test',
-            'method': 'test',
-        },
-        {
-            'jsonrpc': '2.0',
-            'id': 'test2',
-            'method': 'test',
-        },
-    ]
-
-
-@pytest.fixture
-def jsonrpc_error():
+def jsonrpc_error() -> exceptions.BaseJSONRPCError:
     return exceptions.BaseJSONRPCError('I HAZ FIAL')
 
 
 @pytest.fixture
-def execute_context():
+def execute_context() -> executor.Executor.ExecuteContext:
     return executor.Executor.ExecuteContext([])
 
 
@@ -55,7 +34,7 @@ def test_CallContext_invalid_context():
     assert result.kwargs is None
 
 
-def test_CallContext_is_valid_method_none(fake_handler):
+def test_CallContext_is_valid_method_none(fake_handler: mock.Mock):
     # When
     call_context = executor.Executor.CallContext(None, fake_handler, [], {})
 
@@ -71,7 +50,7 @@ def test_CallContext_is_valid_handler_none():
     assert call_context.is_valid is False
 
 
-def test_CallContext_is_valid_args_none(fake_handler):
+def test_CallContext_is_valid_args_none(fake_handler: mock.Mock):
     # When
     call_context = executor.Executor.CallContext(
         'test', fake_handler, None, {},
@@ -81,7 +60,7 @@ def test_CallContext_is_valid_args_none(fake_handler):
     assert call_context.is_valid is False
 
 
-def test_CallContext_is_valid_kwargs_none(fake_handler):
+def test_CallContext_is_valid_kwargs_none(fake_handler: mock.Mock):
     # When
     call_context = executor.Executor.CallContext(
         'test', fake_handler, [], None,
@@ -91,7 +70,7 @@ def test_CallContext_is_valid_kwargs_none(fake_handler):
     assert call_context.is_valid is False
 
 
-def test_CallContext_is_valid(fake_handler):
+def test_CallContext_is_valid(fake_handler: mock.Mock):
     # When
     call_context = executor.Executor.CallContext('test', fake_handler, [], {})
 
@@ -99,12 +78,13 @@ def test_CallContext_is_valid(fake_handler):
     assert call_context.is_valid is True
 
 
-def test_init_default_namespace():
+def test_init():
     # When
     result = executor.Executor()
 
     # Then
     assert result.namespace == MethodRegistry.DEFAULT_NAMESPACE
+    assert isinstance(result.codec, JSONCodec) is True
 
 
 def test_init_custom_namespace():
@@ -115,8 +95,17 @@ def test_init_custom_namespace():
     assert result.namespace == 'testing'
 
 
+def test_init_custom_codec(fake_custom_codec: mock.Mock):
+    # When
+    result = executor.Executor(codec=fake_custom_codec)
+
+    # Then
+    assert result.codec == fake_custom_codec
+
+
 @mock.patch.object(executor.MethodRegistry, 'shared_registry')
-def test_list_methods(mock_shared_registry, fake_method_registry):
+def test_list_methods(mock_shared_registry: mock.Mock,
+                      fake_method_registry: mock.Mock):
     # Given
     fake_method_registry.get_methods.return_value = ['test']
     mock_shared_registry.return_value = fake_method_registry
@@ -170,6 +159,21 @@ def test_deserialize_data():
     assert result == 'spam'
 
 
+def test_deserialize_data_custom_codec(fake_custom_codec: mock.Mock):
+    # Given
+    fake_custom_codec.decode.return_value = 'spam'
+
+    the_executor = executor.Executor(codec=fake_custom_codec)
+
+    # When
+    result = the_executor.deserialize_data('"spam"')
+
+    # Then
+    assert result == 'spam'
+
+    fake_custom_codec.decode.assert_called_once_with('"spam"')
+
+
 def test_deserialize_data_error():
     # Given
     the_executor = executor.Executor()
@@ -184,7 +188,25 @@ def test_deserialize_data_error():
         assert False, 'No exception raised?'
 
 
-def test_get_calls_batch(batch_calls):
+def test_deserialize_data_custom_codec_error(fake_custom_codec: mock.Mock):
+    # Given
+    error = RuntimeError('I HAZ FAIL')
+    fake_custom_codec.decode.side_effect = error
+
+    the_executor = executor.Executor(codec=fake_custom_codec)
+
+    # When
+    try:
+        _ = the_executor.deserialize_data(None)
+    except Exception as exception:
+        # Then
+        assert isinstance(exception, exceptions.JSONRPCParseError)
+        assert exception.__cause__ == error
+    else:
+        assert False, 'No exception raised?'
+
+
+def test_get_calls_batch(batch_calls: list):
     # Given
     the_executor = executor.Executor()
 
@@ -195,7 +217,7 @@ def test_get_calls_batch(batch_calls):
     assert result == batch_calls
 
 
-def test_get_calls_single(single_call):
+def test_get_calls_single(single_call: dict):
     # Given
     the_executor = executor.Executor()
 
@@ -234,7 +256,7 @@ def test_get_call_spec_not_dict():
         assert False, 'No exception raised?'
 
 
-def test_get_call_spec_wihtout_jsonrpc(single_call):
+def test_get_call_spec_wihtout_jsonrpc(single_call: dict):
     # Given
     single_call.pop('jsonrpc')
 
@@ -250,7 +272,7 @@ def test_get_call_spec_wihtout_jsonrpc(single_call):
         assert False, 'No exception raised?'
 
 
-def test_get_call_spec_invalid_jsonrpc(single_call):
+def test_get_call_spec_invalid_jsonrpc(single_call: dict):
     # Given
     single_call['jsonrpc'] = 'test'
 
@@ -266,7 +288,7 @@ def test_get_call_spec_invalid_jsonrpc(single_call):
         assert False, 'No exception raised?'
 
 
-def test_get_call_spec_wihtout_method(single_call):
+def test_get_call_spec_wihtout_method(single_call: dict):
     # Given
     single_call.pop('method')
 
@@ -283,9 +305,9 @@ def test_get_call_spec_wihtout_method(single_call):
 
 
 @mock.patch.object(executor.MethodRegistry, 'shared_registry')
-def test_get_call_spec_internal_method(mock_shared_registry,
-                                       single_call,
-                                       fake_handler):
+def test_get_call_spec_internal_method(mock_shared_registry: mock.Mock,
+                                       single_call: dict,
+                                       fake_handler: mock.Mock):
     # Given
     single_call['method'] = 'system.list_methods'
 
@@ -307,11 +329,13 @@ def test_get_call_spec_internal_method(mock_shared_registry,
 
 
 @mock.patch.object(executor.MethodRegistry, 'shared_registry')
-def test_get_call_spec_registry_method(mock_shared_registry,
-                                       single_call,
-                                       fake_method_registry,
-                                       fake_handler):
+def test_get_call_spec_registry_method(mock_shared_registry: mock.Mock,
+                                       single_call: dict,
+                                       fake_method_registry: mock.Mock,
+                                       fake_handler: mock.Mock):
     # Given
+    single_call['method'] = 'test'
+
     fake_method_registry.get_handler.return_value = fake_handler
     mock_shared_registry.return_value = fake_method_registry
 
@@ -333,10 +357,12 @@ def test_get_call_spec_registry_method(mock_shared_registry,
 
 
 @mock.patch.object(executor.MethodRegistry, 'shared_registry')
-def test_get_call_spec_method_not_found(mock_shared_registry,
-                                        single_call,
-                                        fake_method_registry):
+def test_get_call_spec_method_not_found(mock_shared_registry: mock.Mock,
+                                        single_call: dict,
+                                        fake_method_registry: mock.Mock):
     # Given
+    single_call['method'] = 'test'
+
     fake_method_registry.get_handler.return_value = None
     mock_shared_registry.return_value = fake_method_registry
 
@@ -353,10 +379,10 @@ def test_get_call_spec_method_not_found(mock_shared_registry,
 
 
 @mock.patch.object(executor.MethodRegistry, 'shared_registry')
-def test_get_call_spec_invalid_params(mock_shared_registry,
-                                      single_call,
-                                      fake_method_registry,
-                                      fake_handler):
+def test_get_call_spec_invalid_params(mock_shared_registry: mock.Mock,
+                                      single_call: dict,
+                                      fake_method_registry: mock.Mock,
+                                      fake_handler: mock.Mock):
     # Given
     single_call['params'] = 'spam'
 
@@ -376,10 +402,10 @@ def test_get_call_spec_invalid_params(mock_shared_registry,
 
 
 @mock.patch.object(executor.MethodRegistry, 'shared_registry')
-def test_get_call_spec_with_args(mock_shared_registry,
-                                 single_call,
-                                 fake_method_registry,
-                                 fake_handler):
+def test_get_call_spec_with_args(mock_shared_registry: mock.Mock,
+                                 single_call: dict,
+                                 fake_method_registry: mock.Mock,
+                                 fake_handler: mock.Mock):
     # Given
     single_call['params'] = ['spam']
 
@@ -402,10 +428,10 @@ def test_get_call_spec_with_args(mock_shared_registry,
 
 
 @mock.patch.object(executor.MethodRegistry, 'shared_registry')
-def test_get_call_spec_with_kwargs(mock_shared_registry,
-                                   single_call,
-                                   fake_method_registry,
-                                   fake_handler):
+def test_get_call_spec_with_kwargs(mock_shared_registry: mock.Mock,
+                                   single_call: dict,
+                                   fake_method_registry: mock.Mock,
+                                   fake_handler: mock.Mock):
     # Given
     single_call['params'] = {'spam': True}
 
@@ -427,7 +453,9 @@ def test_get_call_spec_with_kwargs(mock_shared_registry,
         mock_enrich_kwargs.assert_called_with({'spam': True})
 
 
-def test_process_results(batch_calls, single_call, jsonrpc_error):
+def test_process_results(batch_calls: list,
+                         single_call: dict,
+                         jsonrpc_error: exceptions.BaseJSONRPCError):
     # Given
     call_without_id = {**single_call}
     call_without_id.pop('id')
@@ -465,7 +493,7 @@ def test_process_results(batch_calls, single_call, jsonrpc_error):
     assert second_response == expected_second_response
 
 
-def test_process_results_single_call(single_call):
+def test_process_results_single_call(single_call: dict):
     # Given
     call_results = [
         (single_call, 'OK'),
@@ -485,7 +513,7 @@ def test_process_results_single_call(single_call):
     assert result == expected_result
 
 
-def test_process_results_top_level_error(jsonrpc_error):
+def test_process_results_top_level_error(jsonrpc_error: exceptions.BaseJSONRPCError):
     # Given
     call_results = [
         (None, jsonrpc_error),
@@ -505,7 +533,7 @@ def test_process_results_top_level_error(jsonrpc_error):
     assert result == expected_result
 
 
-def test_process_results_empty(single_call):
+def test_process_results_empty(single_call: dict):
     # Given
     single_call.pop('id')
 
@@ -522,9 +550,9 @@ def test_process_results_empty(single_call):
     assert result is None
 
 
-def test_call_context_invalid_context(jsonrpc_error,
-                                      execute_context,
-                                      single_call):
+def test_call_context_invalid_context(jsonrpc_error: exceptions.BaseJSONRPCError,
+                                      execute_context: executor.Executor.ExecuteContext,
+                                      single_call: dict):
     # Given
     the_executor = executor.Executor()
 
@@ -539,10 +567,10 @@ def test_call_context_invalid_context(jsonrpc_error,
         assert result.is_valid is False
 
 
-def test_call_context_handle_jsonrpc_error(fake_handler,
-                                           jsonrpc_error,
-                                           execute_context,
-                                           single_call):
+def test_call_context_handle_jsonrpc_error(fake_handler: mock.Mock,
+                                           jsonrpc_error: exceptions.BaseJSONRPCError,
+                                           execute_context: executor.Executor.ExecuteContext,
+                                           single_call: dict):
     # Given
     the_executor = executor.Executor()
 
@@ -562,9 +590,9 @@ def test_call_context_handle_jsonrpc_error(fake_handler,
         assert call_result[1] == jsonrpc_error
 
 
-def test_call_context_handle_exception(fake_handler,
-                                       execute_context,
-                                       single_call):
+def test_call_context_handle_exception(fake_handler: mock.Mock,
+                                       execute_context: executor.Executor.ExecuteContext,
+                                       single_call: dict):
     # Given
     the_executor = executor.Executor()
 
@@ -585,7 +613,9 @@ def test_call_context_handle_exception(fake_handler,
         assert call_result[1].data == 'I HAZ FIAL'
 
 
-def test_call_context(fake_handler, execute_context, single_call):
+def test_call_context(fake_handler: mock.Mock,
+                      execute_context: executor.Executor.ExecuteContext,
+                      single_call: dict):
     # Given
     the_executor = executor.Executor()
 
@@ -610,7 +640,7 @@ def test_call_context(fake_handler, execute_context, single_call):
         assert execute_context.results[0] == expected_call_result
 
 
-def test_execute_context_handle_jsonrpc_error(jsonrpc_error):
+def test_execute_context_handle_jsonrpc_error(jsonrpc_error: exceptions.BaseJSONRPCError):
     # Given
     the_executor = executor.Executor()
 
@@ -638,7 +668,7 @@ def test_execute_context_handle_exception():
     assert result.serializer is None
 
 
-def test_execute_context_handle_empty_results(single_call):
+def test_execute_context_handle_empty_results(single_call: dict):
     # Given
     the_executor = executor.Executor()
 
@@ -656,7 +686,7 @@ def test_execute_context_handle_empty_results(single_call):
             assert mock_serializer.called is False
 
 
-def test_execute_context(fake_rpc_serializer, single_call):
+def test_execute_context(fake_rpc_serializer: mock.Mock, single_call: dict):
     # Given
     fake_responses = {
         'jsonrpc': '2.0',
@@ -712,7 +742,7 @@ def test_before_call():
 
 
 @mock.patch.object(executor.MethodRegistry, 'shared_registry')
-def test_execute(mock_shared_registry, fake_method_registry):
+def test_execute(mock_shared_registry: mock.Mock, fake_method_registry: mock.Mock):
     # Given
     fake_method_registry.get_handler.return_value = None
     fake_method_registry.get_methods.return_value = []

packages/bthlabs-jsonrpc-core/tests/ext/jwt/conftest.py

@@ -0,0 +1,22 @@
+# -*- coding: utf-8 -*-
+# type: ignore
+from __future__ import annotations
+
+import datetime
+
+import pytest
+
+
+@pytest.fixture
+def iat() -> datetime.datetime:
+    return datetime.datetime.now()
+
+
+@pytest.fixture
+def nbf() -> datetime.datetime:
+    return datetime.datetime.now()
+
+
+@pytest.fixture
+def exp() -> datetime.datetime:
+    return datetime.datetime.now()

packages/bthlabs-jsonrpc-core/tests/ext/jwt/test_JWTCodec.py

@@ -0,0 +1,255 @@
+# -*- coding: utf-8 -*-
+# type: ignore
+from __future__ import annotations
+
+import datetime
+import typing
+from unittest import mock
+
+import freezegun
+import jose
+import pytest
+
+from bthlabs_jsonrpc_core.ext import jwt
+
+
+@pytest.fixture
+def key_pair() -> jwt.KeyPair:
+    return jwt.KeyPair(
+        encode_key=jose.jwk.HMACKey(
+            'thisisntsecure', algorithm=jose.constants.ALGORITHMS.HS256,
+        ),
+        decode_key=jose.jwk.HMACKey(
+            'thisisntsecure', algorithm=jose.constants.ALGORITHMS.HS256,
+        ),
+    )
+
+
+@pytest.fixture
+def response() -> dict:
+    return {
+        'jsonrpc': '2.0',
+        'id': 'test',
+        'result': ['system.list_methods'],
+    }
+
+
+@pytest.fixture
+def encoded_payload(single_call: dict,
+                    iat: datetime.datetime,
+                    key_pair: jwt.KeyPair) -> str:
+    claims = {
+        'iss': 'bthlabs_jsonrpc_core_tests',
+        'jsonrpc': single_call,
+        'iat': iat,
+    }
+
+    return jose.jwt.encode(claims, key_pair.encode_key)
+
+
+@pytest.fixture
+def time_claims(iat: datetime.datetime) -> jwt.TimeClaims:
+    return jwt.TimeClaims(iat=iat, nbf=None, exp=None)
+
+
+def test_init(key_pair: jwt.KeyPair):
+    # When
+    result = jwt.JWTCodec(key_pair)
+
+    # Then
+    assert result.key_pair == key_pair
+    assert result.algorithm == jose.constants.ALGORITHMS.HS256
+    assert result.issuer is None
+    assert result.ttl is None
+    assert result.include_nbf is True
+
+
+@pytest.mark.parametrize(
+    'kwarg,value',
+    [
+        ('algorithm', jose.constants.ALGORITHMS.RS256),
+        ('issuer', 'bthlabs_jsonrpc_core_tests'),
+        ('ttl', datetime.timedelta(seconds=10)),
+        ('include_nbf', False),
+    ],
+)
+def test_init_with_kwargs(kwarg: str,
+                          value: typing.Any,
+                          key_pair: jwt.KeyPair):
+    # Given
+    init_kwargs = {kwarg: value}
+
+    # When
+    result = jwt.JWTCodec(key_pair, **init_kwargs)
+
+    # Then
+    assert getattr(result, kwarg) == value
+
+
+def test_decode(key_pair: jwt.KeyPair,
+                encoded_payload: str,
+                single_call: dict):
+    # Given
+    codec = jwt.JWTCodec(key_pair)
+
+    # When
+    result = codec.decode(encoded_payload)
+
+    # Then
+    assert result == single_call
+
+
+def test_decode_jwt_decode_single_call(key_pair: jwt.KeyPair,
+                                       encoded_payload: str):
+    # Given
+    codec = jwt.JWTCodec(key_pair)
+
+    with mock.patch.object(jwt.jwt, 'decode') as mock_jwt_decode:
+        # When
+        _ = codec.decode(encoded_payload)
+
+        # Then
+        mock_jwt_decode.assert_called_once_with(
+            encoded_payload,
+            key_pair.decode_key,
+            algorithms=[codec.algorithm],
+        )
+
+
+def test_decode_with_decoder_kwargs(key_pair: jwt.KeyPair,
+                                    encoded_payload: str):
+    # Given
+    codec = jwt.JWTCodec(key_pair)
+
+    with mock.patch.object(jwt.jwt, 'decode') as mock_jwt_decode:
+        # When
+        _ = codec.decode(encoded_payload, issuer='bthlabs_jsonrpc_core_tests')
+
+        # Then
+        mock_jwt_decode.assert_called_once_with(
+            encoded_payload,
+            key_pair.decode_key,
+            algorithms=[codec.algorithm],
+            issuer='bthlabs_jsonrpc_core_tests',
+        )
+
+
+@freezegun.freeze_time('2024-01-11 07:09:43')
+def test_encode(key_pair: jwt.KeyPair, response: dict):
+    # Given
+    codec = jwt.JWTCodec(key_pair)
+
+    # When
+    result = codec.encode(response)
+
+    # Then
+    assert isinstance(result, str) is True
+
+    decoded_result = jose.jwt.decode(result, key_pair.decode_key)
+    expected_decoded_result = {
+        'iat': 1704953383,
+        'nbf': 1704953383,
+        'jsonrpc': response,
+    }
+    assert decoded_result == expected_decoded_result
+
+
+def test_encode_with_issuer(key_pair: jwt.KeyPair, response: dict):
+    # Given
+    codec = jwt.JWTCodec(key_pair, issuer='bthlabs_jsonrpc_core_tests')
+
+    # When
+    result = codec.encode(response)
+
+    # Then
+    assert isinstance(result, str) is True
+
+    decoded_result = jose.jwt.decode(result, key_pair.decode_key)
+    assert decoded_result['iss'] == 'bthlabs_jsonrpc_core_tests'
+
+
+def test_encode_with_ttl(key_pair: jwt.KeyPair, response: dict):
+    # Given
+    codec = jwt.JWTCodec(key_pair, ttl=datetime.timedelta(seconds=60))
+
+    # When
+    result = codec.encode(response)
+
+    # Then
+    assert isinstance(result, str) is True
+
+    decoded_result = jose.jwt.decode(result, key_pair.decode_key)
+    assert 'exp' in decoded_result
+    assert decoded_result['exp'] - decoded_result['iat'] == 60
+
+
+def test_encode_without_nbf(key_pair: jwt.KeyPair, response: dict):
+    # Given
+    codec = jwt.JWTCodec(key_pair, include_nbf=False)
+
+    # When
+    result = codec.encode(response)
+
+    # Then
+    assert isinstance(result, str) is True
+
+    decoded_result = jose.jwt.decode(result, key_pair.decode_key)
+    assert 'nbf' not in decoded_result
+
+
+def test_encode_jwt_encode_single_call(key_pair: jwt.KeyPair,
+                                       time_claims: jwt.TimeClaims,
+                                       response: dict):
+    # Given
+    codec = jwt.JWTCodec(key_pair)
+
+    with mock.patch.object(codec, 'get_time_claims') as mock_get_time_claims:
+        with mock.patch.object(jwt.jwt, 'encode') as mock_jwt_encode:
+            mock_get_time_claims.return_value = time_claims
+
+            # When
+            _ = codec.encode(response)
+
+            mock_jwt_encode.assert_called_once_with(
+                {
+                    'iat': time_claims.iat,
+                    'jsonrpc': response,
+                },
+                key_pair.encode_key,
+                algorithm=codec.algorithm,
+            )
+
+
+def test_encode_with_encoder_kwargs(key_pair: jwt.KeyPair,
+                                    time_claims: jwt.TimeClaims,
+                                    response: dict):
+    # Given
+    codec = jwt.JWTCodec(key_pair)
+
+    with mock.patch.object(codec, 'get_time_claims') as mock_get_time_claims:
+        with mock.patch.object(jwt.jwt, 'encode') as mock_jwt_encode:
+            mock_get_time_claims.return_value = time_claims
+
+            # When
+            _ = codec.encode(response, headers={'cty': 'JWT'})
+
+            mock_jwt_encode.assert_called_once_with(
+                {
+                    'iat': time_claims.iat,
+                    'jsonrpc': response,
+                },
+                key_pair.encode_key,
+                algorithm=codec.algorithm,
+                headers={'cty': 'JWT'},
+            )
+
+
+def test_get_content_type():
+    # Given
+    codec = jwt.JWTCodec(key_pair)
+
+    # When
+    result = codec.get_content_type()
+
+    # Then
+    assert result == 'application/jwt'

packages/bthlabs-jsonrpc-core/tests/ext/jwt/test_TimeClaims.py

@@ -0,0 +1,50 @@
+# -*- coding: utf-8 -*-
+from __future__ import annotations
+
+import datetime
+
+from bthlabs_jsonrpc_core.ext import jwt
+
+
+def test_as_claims(iat: datetime.datetime):
+    # Given
+    time_claims = jwt.TimeClaims(iat=iat, nbf=None, exp=None)
+
+    # When
+    result = time_claims.as_claims()
+
+    # Then
+    expected_claims = {
+        'iat': iat,
+    }
+    assert result == expected_claims
+
+
+def test_as_claims_with_nbf(iat: datetime.datetime, nbf: datetime.datetime):
+    # Given
+    time_claims = jwt.TimeClaims(iat=iat, nbf=nbf, exp=None)
+
+    # When
+    result = time_claims.as_claims()
+
+    # Then
+    expected_claims = {
+        'iat': iat,
+        'nbf': nbf,
+    }
+    assert result == expected_claims
+
+
+def test_as_claims_with_exp(iat: datetime.datetime, exp: datetime.datetime):
+    # Given
+    time_claims = jwt.TimeClaims(iat=iat, nbf=None, exp=exp)
+
+    # When
+    result = time_claims.as_claims()
+
+    # Then
+    expected_claims = {
+        'iat': iat,
+        'exp': exp,
+    }
+    assert result == expected_claims

packages/bthlabs-jsonrpc-core/tests/registry/test_MethodRedistry.py

@@ -13,7 +13,7 @@ def test_init():
 
 
 @mock.patch.object(registry.MethodRegistry, '__init__')
-def test_shared_registry(mock_init):
+def test_shared_registry(mock_init: mock.Mock):
     # Given
     mock_init.return_value = None
 
@@ -32,7 +32,8 @@ def test_shared_registry(mock_init):
 
 
 @mock.patch.object(registry.MethodRegistry, '__init__')
-def test_shared_registry_with_instance(mock_init, fake_method_registry):
+def test_shared_registry_with_instance(mock_init: mock.Mock,
+                                       fake_method_registry: mock.Mock):
     # Given
     mock_init.return_value = None
 
@@ -52,7 +53,7 @@ def test_shared_registry_with_instance(mock_init, fake_method_registry):
     registry.MethodRegistry.INSTANCE = None
 
 
-def test_register_method(fake_handler):
+def test_register_method(fake_handler: mock.Mock):
     # Given
     the_registry = registry.MethodRegistry()
 
@@ -64,7 +65,7 @@ def test_register_method(fake_handler):
     assert the_registry.registry['testing'] == expected_namespace
 
 
-def test_register_method_existing_namespace(fake_handler):
+def test_register_method_existing_namespace(fake_handler: mock.Mock):
     # Given
     spam_handler = mock.Mock()
 
@@ -93,7 +94,7 @@ def test_get_methods():
     assert set(result) == expected_methods
 
 
-def test_get_handler(fake_handler):
+def test_get_handler(fake_handler: mock.Mock):
     # Given
     spam_handler = mock.Mock()
 

packages/bthlabs-jsonrpc-core/tests/serializer/test_JSONRPCSerializer.py

@@ -1,6 +1,7 @@
 # -*- coding: utf-8 -*-
 import datetime
 import decimal
+import typing
 import uuid
 
 import pytest
@@ -20,7 +21,7 @@ def test_init():
     'value,expected',
     [(None, True), (False, True), (0, True), ('spam', True), ([], False)],
 )
-def test_is_simple_value(value, expected):
+def test_is_simple_value(value: typing.Any, expected: bool):
     # Given
     the_serializer = serializer.JSONRPCSerializer('spam')
 
@@ -38,7 +39,7 @@ def test_is_simple_value(value, expected):
         (tuple(), True), ({}, False),
     ],
 )
-def test_is_sequence_value(value, expected):
+def test_is_sequence_value(value: typing.Any, expected: bool):
     # Given
     the_serializer = serializer.JSONRPCSerializer('spam')
 
@@ -53,7 +54,7 @@ def test_is_sequence_value(value, expected):
     'value,expected',
     [({}, True), ([], False)],
 )
-def test_is_dict_value(value, expected):
+def test_is_dict_value(value: typing.Any, expected: bool):
     # Given
     the_serializer = serializer.JSONRPCSerializer('spam')
 
@@ -68,7 +69,7 @@ def test_is_dict_value(value, expected):
     'value,expected',
     [(uuid.uuid4(), True), (decimal.Decimal('42'), True), ([], False)],
 )
-def test_is_string_coercible_value(value, expected):
+def test_is_string_coercible_value(value: typing.Any, expected: bool):
     # Given
     the_serializer = serializer.JSONRPCSerializer('spam')
 
@@ -92,7 +93,7 @@ def test_is_string_coercible_value(value, expected):
         ),
     ],
 )
-def test_serialize_datetime(value, expected):
+def test_serialize_datetime(value: typing.Any, expected: bool):
     # Given
     the_serializer = serializer.JSONRPCSerializer('spam')