feat: SQLALCHEMY_POOL_SIZE and SQLIALCHEMY_MAX_OVERFLOW variables

.env.example

@@ -59,6 +59,8 @@ UVICORN_PORT = 8000
 # EXTERNAL_CONFIG = "config://..."
 
 # SQLALCHEMY_DATABASE_URL = "sqlite:///db.sqlite3"
+# SQLALCHEMY_POOL_SIZE = 10
+# SQLIALCHEMY_MAX_OVERFLOW = 30
 
 ## Custom text for STATUS_TEXT variable
 # ACTIVE_STATUS_TEXT = "Active"

app/db/base.py

@@ -1,8 +1,10 @@
-from config import SQLALCHEMY_DATABASE_URL
 from sqlalchemy import create_engine
 from sqlalchemy.ext.declarative import declarative_base
 from sqlalchemy.orm import sessionmaker
 
+from config import (SQLALCHEMY_DATABASE_URL, SQLALCHEMY_POOL_SIZE,
+                    SQLIALCHEMY_MAX_OVERFLOW)
+
 IS_SQLITE = SQLALCHEMY_DATABASE_URL.startswith('sqlite')
 
 if IS_SQLITE:
@@ -13,8 +15,8 @@
 else:
     engine = create_engine(
         SQLALCHEMY_DATABASE_URL,
-        pool_size=10,
-        max_overflow=30,
+        pool_size=SQLALCHEMY_POOL_SIZE,
+        max_overflow=SQLIALCHEMY_MAX_OVERFLOW,
         pool_recycle=3600,
         pool_timeout=10
     )

config.py

@@ -5,7 +5,8 @@
 
 
 SQLALCHEMY_DATABASE_URL = config("SQLALCHEMY_DATABASE_URL", default="sqlite:///db.sqlite3")
-
+SQLALCHEMY_POOL_SIZE = config("SQLALCHEMY_POOL_SIZE", cast=int, default=10)
+SQLIALCHEMY_MAX_OVERFLOW = config("SQLIALCHEMY_MAX_OVERFLOW", cast=int, default=30)
 
 UVICORN_HOST = config("UVICORN_HOST", default="0.0.0.0")
 UVICORN_PORT = config("UVICORN_PORT", cast=int, default=8000)