config_ninja.contrib

Backend implementations for third-party integrations.

Each backend is implemented as a subclass of config_ninja.backend.Backend in a module of this package. The get_backend() function is used to retrieve the backend class given its module name.

Available Backends

`config_ninja.contrib.appconfig`

Integrate with the AWS AppConfig service.

`config_ninja.contrib.local`

Use a local file as the backend.

`config_ninja.contrib.secretsmanager`

Integrate with the AWS SecretsManager service.

View Source

 1"""Backend implementations for third-party integrations.
 2
 3Each backend is implemented as a subclass of `config_ninja.backend.Backend` in a module of this
 4package. The `get_backend()` function is used to retrieve the backend class given its module name.
 5
 6## Available Backends
 7
 8### `config_ninja.contrib.appconfig`
 9
10Integrate with the AWS AppConfig service.
11
12### `config_ninja.contrib.local`
13
14Use a local file as the backend.
15
16### `config_ninja.contrib.secretsmanager`
17
18Integrate with the AWS SecretsManager service.
19"""
20
21from __future__ import annotations
22
23import importlib
24
25from config_ninja.backend import Backend
26
27
28def get_backend(name: str) -> type[Backend]:
29    """Import the `config_ninja.backend.Backend` subclass for the given module name."""
30    module = importlib.import_module(f'config_ninja.contrib.{name}')
31    for val in module.__dict__.values():
32        try:
33            is_subclass = issubclass(val, Backend)
34        except TypeError:
35            continue
36
37        if is_subclass and val is not Backend:
38            return val  # type: ignore[no-any-return]  # is_subclass ensures the correct type
39
40    raise ValueError(f'No backend found for {name}')  # pragma: no cover

def get_backend(name: str) -> type[config_ninja.backend.Backend]: View Source

29def get_backend(name: str) -> type[Backend]:
30    """Import the `config_ninja.backend.Backend` subclass for the given module name."""
31    module = importlib.import_module(f'config_ninja.contrib.{name}')
32    for val in module.__dict__.values():
33        try:
34            is_subclass = issubclass(val, Backend)
35        except TypeError:
36            continue
37
38        if is_subclass and val is not Backend:
39            return val  # type: ignore[no-any-return]  # is_subclass ensures the correct type
40
41    raise ValueError(f'No backend found for {name}')  # pragma: no cover

Import the config_ninja.backend.Backend subclass for the given module name.