feat: handling for integrity errors

Resolves: #7

src/service/router.py

@@ -6,7 +6,11 @@ Endpoints:
  - Endpoints: Description
 """
 from fastapi import APIRouter, status
+from psycopg.errors import UniqueViolation
+from sqlalchemy.exc import IntegrityError
 
+from auth.exceptions import UnauthorizedException
+from exceptions import Conflict
 from src.database import db_dependency
 from src.auth.service import claims_dependency
 from src.auth.dependencies import super_admin_dependency, org_model_root_claim_query_dependency, org_model_root_claim_body_dependency
@@ -34,7 +38,12 @@ async def register_service(db: db_dependency, su: super_admin_dependency, servic
 	service_model = Service(name=service_request.name, api_key=key)
 
 	db.add(service_model)
-	db.flush()
+	try:
+		db.flush()
+	except IntegrityError as e:
+		if isinstance(e.orig, UniqueViolation):
+			raise Conflict(message="Service with this name already exists")
+	db.commit()
 	response = ServiceWithKeyResponse(**service_model.__dict__)
 	db.commit()
 	return {"service": response}