Added app configuration

Author: nb-programmer

sample_fastapi/app/config/__init__.py

@@ -0,0 +1,4 @@
+from .depends import get_app_dirs, get_app_settings
+from .models import AppDirectories, AppSettings
+
+__all__ = ["get_app_dirs", "get_app_settings", "AppDirectories", "AppSettings"]

sample_fastapi/app/config/depends.py

@@ -0,0 +1,13 @@
+from functools import lru_cache
+
+from .models import AppDirectories, AppSettings
+
+
+@lru_cache()
+def get_app_settings():
+    return AppSettings()
+
+
+@lru_cache()
+def get_app_dirs():
+    return AppDirectories()

sample_fastapi/app/config/models.py

@@ -0,0 +1,29 @@
+from functools import partial
+from pathlib import Path
+
+import platformdirs
+from pydantic import AnyUrl, Field
+from pydantic_settings import BaseSettings
+from pydantic_settings.main import SettingsConfigDict
+
+from .settings import APP_NAME
+
+
+class BaseAppSettings(BaseSettings):
+    """Base class for all settings classes. Allows to be loaded from a `.env` file if found."""
+    model_config = SettingsConfigDict(
+        env_file=(".env", ".env.dev"),
+        env_file_encoding="utf-8",
+        extra="allow",
+    )
+
+
+class AppSettings(BaseAppSettings):
+    """Main application-specific settings"""
+    app_base_url: AnyUrl = "http://localhost:8000"
+
+
+class AppDirectories(BaseAppSettings):
+    """Paths that may be used by the application"""
+    cache_dir: Path = Field(default_factory=partial(platformdirs.user_cache_path, appname=APP_NAME))
+    data_dir: Path = Field(default_factory=partial(platformdirs.user_data_path, appname=APP_NAME))

sample_fastapi/app/config/settings.py

@@ -0,0 +1 @@
+APP_NAME = "sample-fastapi"