diff --git a/icon_service_base/database/create_config.py b/icon_service_base/database/create_config.py
new file mode 100644
index 0000000..600aaee
--- /dev/null
+++ b/icon_service_base/database/create_config.py
@@ -0,0 +1,33 @@
+from pathlib import Path
+from typing import Optional, TypeVar
+
+from confz import BaseConfig, FileSource
+from loguru import logger
+
+T = TypeVar("T", bound=BaseConfig)
+
+
+class NoConfigSourceError(Exception):
+    pass
+
+
+def create_config(
+    config_class: type[T],
+    config_folder: Optional[Path | str] = None,
+    config_file: str = "",
+) -> T:
+    if config_class.CONFIG_SOURCES is not None or config_folder is not None:
+        config_sources = None
+        if config_folder is not None:
+            config_sources = FileSource(Path(config_folder) / config_file)
+        return config_class(config_sources=config_sources)
+    else:
+        error_msg = (
+            "No 'database_config' folder found in the root directory. Please ensure "
+            "that a 'database_config' folder exists in your project's root directory. "
+            "Alternatively, you can provide a different config folder by passing its "
+            "path to the constructor."
+        )
+        logger.error(error_msg)
+
+        raise NoConfigSourceError(error_msg)
diff --git a/icon_service_base/database/influxdb_session.py b/icon_service_base/database/influxdb_session.py
index 3627761..3216592 100644
--- a/icon_service_base/database/influxdb_session.py
+++ b/icon_service_base/database/influxdb_session.py
@@ -4,19 +4,19 @@ from pathlib import Path
 from types import TracebackType
 from typing import Optional
 
-from confz import FileSource
-from influxdb_client import (  # type: ignore
+from influxdb_client import (
     Bucket,
     BucketRetentionRules,
     BucketsApi,
     InfluxDBClient,
     WriteApi,
 )
-from influxdb_client.client.write_api import SYNCHRONOUS  # type: ignore
-from influxdb_client.rest import ApiException  # type: ignore
+from influxdb_client.client.write_api import SYNCHRONOUS
+from influxdb_client.rest import ApiException
 from loguru import logger
 
 from icon_service_base.database.config import InfluxDBConfig
+from icon_service_base.database.create_config import create_config
 
 
 class InfluxDBSession:
@@ -53,21 +53,11 @@ class InfluxDBSession:
     conf_folder: Path | str
 
     def __init__(self, config_folder: Optional[Path | str] = None) -> None:
-        config_folder = config_folder or getattr(self, "conf_folder", None)
-        if InfluxDBConfig.CONFIG_SOURCES is not None or config_folder is not None:
-            config_sources = None
-            if config_folder is not None:
-                config_sources = FileSource(
-                    Path(config_folder) / "influxdb_config.yaml"
-                )
-            self._config = InfluxDBConfig(config_sources=config_sources)
-        else:
-            logger.error(
-                "No config folder given. Please provide a config folder either by "
-                "passing it to the constructor or by setting the 'conf_folder' "
-                "attribute."
-            )
-            return
+        self._config = create_config(
+            InfluxDBConfig,
+            config_folder=config_folder,
+            config_file="influxdb_config.yaml",
+        )
 
         self.url = self._config.url
         self.token = str(self._config.token)
diff --git a/icon_service_base/database/postgres_session.py b/icon_service_base/database/postgres_session.py
index fca19bd..784b4a9 100644
--- a/icon_service_base/database/postgres_session.py
+++ b/icon_service_base/database/postgres_session.py
@@ -13,6 +13,7 @@ from loguru import logger
 from sqlmodel import Session, SQLModel, create_engine
 
 from icon_service_base.database.config import OperationMode, PostgreSQLConfig
+from icon_service_base.database.create_config import create_config
 
 
 def json_loads_or_return_input(input_string: str) -> dict[str, Any] | Any:
@@ -132,21 +133,11 @@ class PostgresDatabaseSession(Session):
 
     def __init__(self, config_folder: Optional[Path | str] = None) -> None:
         """Initializes a new session bound to the database engine."""
-        config_folder = config_folder or getattr(self, "conf_folder", None)
-        if PostgreSQLConfig.CONFIG_SOURCES is not None or config_folder is not None:
-            config_sources = None
-            if config_folder is not None:
-                config_sources = FileSource(
-                    Path(config_folder) / f"postgres_{OperationMode().environment}.yaml"
-                )
-            self._config = PostgreSQLConfig(config_sources=config_sources)
-        else:
-            logger.error(
-                "No config folder given. Please provide a config folder either by "
-                "passing it to the constructor or by setting the 'conf_folder' "
-                "attribute."
-            )
-            return
+        self._config = create_config(
+            PostgreSQLConfig,
+            config_folder=config_folder,
+            config_file=f"postgres_{OperationMode().environment}.yaml",
+        )
 
         super().__init__(
             bind=create_engine(