support postgres

.env.template

@@ -43,6 +43,7 @@ COSMOSDB_PARTITION_KEY="/id"
 
 # SQL Database Settings
 SQL_DATABASE_URI="sqlite:///template_langgraph.db"
+# SQL_DATABASE_URI="postgresql://user:password@localhost:5432/db"
 
 # ---------
 # Utilities

docker-compose.yml

@@ -18,3 +18,15 @@ services:
       - xpack.security.enabled=false
     volumes:
       - ./assets/es_data:/usr/share/elasticsearch/data
+  postgres:
+    image: postgres:17
+    container_name: postgres
+    ports:
+      - 5432:5432
+    volumes:
+      - ./assets/postgres_data:/var/lib/postgresql/data
+    environment:
+      POSTGRES_USER: user
+      POSTGRES_PASSWORD: password
+      POSTGRES_DB: db
+    restart: always

pyproject.toml

@@ -17,6 +17,7 @@ dependencies = [
     "langgraph>=0.6.2",
     "langgraph-supervisor>=0.0.29",
     "openai>=1.98.0",
+    "psycopg2-binary>=2.9.10",
     "pydantic-settings>=2.9.1",
     "pypdf>=5.9.0",
     "python-dotenv>=1.1.0",