Init

src/core/app.py

@@ -0,0 +1,27 @@
+from fastapi import FastAPI
+
+from core.db import database
+from app.views import users_router, languages_router
+
+
+def start_app() -> FastAPI:
+    app = FastAPI()
+
+    app.include_router(users_router)
+    app.include_router(languages_router)
+
+    app.state.database = database
+
+    @app.on_event('startup')
+    async def startup() -> None:
+        database_ = app.state.database
+        if not database_.is_connected:
+            await database_.connect()
+
+    @app.on_event('shutdown')
+    async def shutdown() -> None:
+        database_ = app.state.database
+        if database_.is_connected:
+            await database_.disconnect()
+
+    return app

src/core/auth.py

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+from fastapi.security import APIKeyHeader
+
+
+default_security = APIKeyHeader(name="Authorization")

src/core/config.py

@@ -0,0 +1,14 @@
+from pydantic import BaseSettings
+
+
+class EnvConfig(BaseSettings):
+    API_KEY: str
+
+    POSTGRES_USER: str
+    POSTGRES_PASSWORD: str
+    POSTGRES_HOST: str
+    POSTGRES_PORT: int
+    POSTGRES_DB: str
+
+
+env_config = EnvConfig()

src/core/db.py

@@ -0,0 +1,15 @@
+from urllib.parse import quote
+from databases import Database
+
+from sqlalchemy import MetaData
+
+from core.config import env_config
+
+
+DATABASE_URL = (
+    f"postgresql://{env_config.POSTGRES_USER}:{quote(env_config.POSTGRES_PASSWORD)}@"
+    f"{env_config.POSTGRES_HOST}:{env_config.POSTGRES_PORT}/{env_config.POSTGRES_DB}"
+)
+
+metadata = MetaData()
+database = Database(DATABASE_URL)