App settings

src/app/core/config.py

@@ -18,13 +18,38 @@ class CryptSettings(BaseSettings):
     ACCESS_TOKEN_EXPIRE_MINUTES: int = config("ACCESS_TOKEN_EXPIRE_MINUTES")
 
 
-class PostgresSettings(BaseSettings):
+class DatabaseSettings(BaseSettings):
+    pass
+
+
+class SQLiteSettings(DatabaseSettings):
+    SQLITE_URI: str = config("SQLITE_URI", default="./sql_app.db")
+    SQLITE_SYNC_PREFIX: str = config("SQLITE_SYNC_PREFIX", default="sqlite:///")
+    SQLITE_ASYNC_PREFIX: str = config("SQLITE_ASYNC_PREFIX", default="sqlite+aiosqlite:///")
+
+
+class MySQLSettings(DatabaseSettings):
+    MYSQL_USER: str = config("MYSQL_USER", default="username")
+    MYSQL_PASSWORD: str = config("MYSQL_PASSWORD", default="password")
+    MYSQL_SERVER: str = config("MYSQL_SERVER", default="localhost")
+    MYSQL_PORT: str = config("MYSQL_PORT", default=5432)
+    MYSQL_DB: str = config("MYSQL_DB", default="dbname")
+    MYSQL_URI: str = f"{MYSQL_USER}:{MYSQL_PASSWORD}@{MYSQL_SERVER}:{MYSQL_PORT}/{MYSQL_DB}"
+    MYSQL_SYNC_PREFIX: str = config("MYSQL_SYNC_PREFIX", default="mysql://")
+    MYSQL_ASYNC_PREFIX: str = config("MYSQL_ASYNC_PREFIX", default="mysql+aiomysql://")
+    MYSQL_URL: str = config("MYSQL_URL", default=None)
+
+
+class PostgresSettings(DatabaseSettings):
     POSTGRES_USER: str = config("POSTGRES_USER", default="postgres")
     POSTGRES_PASSWORD: str = config("POSTGRES_PASSWORD", default="postgres")
     POSTGRES_SERVER: str = config("POSTGRES_SERVER", default="localhost")
     POSTGRES_PORT: str = config("POSTGRES_PORT", default=5432)
     POSTGRES_DB: str = config("POSTGRES_DB", default="postgres")
+    POSTGRES_SYNC_PREFIX: str = config("POSTGRES_SYNC_PREFIX", default="postgresql://")
+    POSTGRES_ASYNC_PREFIX: str = config("POSTGRES_ASYNC_PREFIX", default="postgresql+asyncpg://")
     POSTGRES_URI: str = f"{POSTGRES_USER}:{POSTGRES_PASSWORD}@{POSTGRES_SERVER}:{POSTGRES_PORT}/{POSTGRES_DB}"
+    POSTGRES_URL: str | None = config("POSTGRES_URL", default=None)
 
 
 class FirstUserSettings(BaseSettings):

src/app/core/database.py

@@ -9,11 +9,12 @@ class Base(DeclarativeBase, MappedAsDataclass):
     pass
 
 DATABASE_URI = settings.POSTGRES_URI
-ASYNC_SQLALCHEMY_DATABASE_URL = f"postgresql+asyncpg://{DATABASE_URI}"
+DATABASE_PREFIX = settings.POSTGRES_ASYNC_PREFIX
+DATABASE_URL = f"{DATABASE_PREFIX}{DATABASE_URI}"
 
 async_engine = create_async_engine(
-    ASYNC_SQLALCHEMY_DATABASE_URL, 
-    echo=False, 
+    DATABASE_URL,
+    echo=False,
     future=True
 )
 

src/app/main.py

@@ -3,7 +3,7 @@
 
 from app.core.database import Base
 from app.core.database import async_engine as engine
-from app.core.config import settings
+from app.core.config import settings, DatabaseSettings, RedisCacheSettings, AppSettings
 from app.api import router
 from app.core import cache
 
@@ -25,17 +25,24 @@ async def close_redis_cache_pool():
 
 # -------------- application --------------
 def create_application() -> FastAPI:
-    application = FastAPI(
-        title=settings.APP_NAME,
-        description=settings.APP_DESCRIPTION,
-        contact=settings.CONTACT,
-        license_info=settings.CONTACT
-    )
+    if isinstance(settings, AppSettings):
+        application = FastAPI(
+            title=settings.APP_NAME,
+            description=settings.APP_DESCRIPTION,
+            contact=settings.CONTACT,
+            license_info=settings.CONTACT
+        )
+    else:
+        application = FastAPI()
 
     application.include_router(router)
-    application.add_event_handler("startup", create_tables)
-    application.add_event_handler("startup", create_redis_cache_pool)
-    application.add_event_handler("shutdown", close_redis_cache_pool)
+
+    if isinstance(settings, DatabaseSettings):
+        application.add_event_handler("startup", create_tables)
+
+    if isinstance(settings, RedisCacheSettings):
+        application.add_event_handler("startup", create_redis_cache_pool)
+        application.add_event_handler("shutdown", close_redis_cache_pool)
 
     return application