Port core API routes for sites and devices

Data/Engine/services/credentials/__init__.py

@@ -0,0 +1,3 @@
+from .credential_service import CredentialService
+
+__all__ = ["CredentialService"]

Data/Engine/services/credentials/credential_service.py

@@ -0,0 +1,29 @@
+"""Expose read access to stored credentials."""
+
+from __future__ import annotations
+
+import logging
+from typing import List, Optional
+
+from Data.Engine.repositories.sqlite.credential_repository import SQLiteCredentialRepository
+
+__all__ = ["CredentialService"]
+
+
+class CredentialService:
+    def __init__(
+        self,
+        repository: SQLiteCredentialRepository,
+        *,
+        logger: Optional[logging.Logger] = None,
+    ) -> None:
+        self._repo = repository
+        self._log = logger or logging.getLogger("borealis.engine.services.credentials")
+
+    def list_credentials(
+        self,
+        *,
+        site_id: Optional[int] = None,
+        connection_type: Optional[str] = None,
+    ) -> List[dict]:
+        return self._repo.list_credentials(site_id=site_id, connection_type=connection_type)