diff --git a/database.py b/database.py
new file mode 100644
index 0000000..1c9efbf
--- /dev/null
+++ b/database.py
@@ -0,0 +1,25 @@
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker, declarative_base
+
+DATABASE_URL = "postgresql://postgres:postgres@172.16.10.178:5444/postgres"
+
+engine = create_engine(
+    DATABASE_URL,
+    pool_pre_ping=True
+)
+
+SessionLocal = sessionmaker(
+    autocommit=False,
+    autoflush=False,
+    bind=engine
+)
+
+Base = declarative_base()
+
+
+def get_db():
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()
\ No newline at end of file
diff --git a/main.py b/main.py
index b862ba1..e0d54df 100644
--- a/main.py
+++ b/main.py
@@ -7,6 +7,10 @@ import psycopg2
 from psycopg2.extras import RealDictCursor
 import asyncio
 from fastapi.middleware.cors import CORSMiddleware
+
+from database import Base, engine,SessionLocal
+# import models
+from models import NodeInterface
 origins = [
     "http://localhost:5173",
     "http://127.0.0.1:5173",
@@ -15,6 +19,8 @@ origins = [
 
 app = FastAPI()
 
+Base.metadata.create_all(bind=engine)
+
 app.add_middleware(
     CORSMiddleware,
     allow_origins=origins,
@@ -213,8 +219,13 @@ def register_node(data: RegisterNodeRequest, token_data: dict = Depends(verify_t
 
         # 5. Show registered nodes
         cur.execute("""
-            SELECT node_id, node_name
-            FROM spock.node;
+        SELECT
+        n.node_id,
+        n.node_name,
+        ni.if_id
+        FROM spock.node n
+        LEFT JOIN spock.node_interface ni
+        ON ni.if_nodeid = n.node_id;
         """)
 
         rows = cur.fetchall()
@@ -222,10 +233,34 @@ def register_node(data: RegisterNodeRequest, token_data: dict = Depends(verify_t
         nodes = [
             {
                 "node_id": row[0],
-                "node_name": row[1]
+                "node_name": row[1],
+                "if_id": row[2]
             }
             for row in rows
         ]
+        registered_node = next(
+        node for node in nodes
+        if node["node_id"] == node_id
+        )
+
+        db = SessionLocal()
+
+        try:
+            node_interface = NodeInterface(
+            if_id=registered_node["if_id"],
+            if_name=registered_node["node_name"],
+            if_nodeid=registered_node["node_id"],
+            host=data.host,
+            port=data.port,
+            dbname=data.dbname,
+            user=data.user
+            )
+
+            db.add(node_interface)
+            db.commit()
+
+        finally:
+            db.close()
 
         return {
             "status": "success",
diff --git a/models.py b/models.py
new file mode 100644
index 0000000..a448872
--- /dev/null
+++ b/models.py
@@ -0,0 +1,41 @@
+from sqlalchemy import Column, BigInteger, Integer, String
+from database import Base
+
+
+class NodeInterface(Base):
+    __tablename__ = "fastAPI_node_interface"
+
+    if_id = Column(
+        BigInteger,
+        primary_key=True
+    )
+
+    if_name = Column(
+        String,
+        nullable=False
+    )
+
+    if_nodeid = Column(
+        Integer,
+        nullable=False
+    )
+
+    host = Column(
+        String,
+        nullable=False
+    )
+
+    port = Column(
+        Integer,
+        nullable=False
+    )
+
+    dbname = Column(
+        String,
+        nullable=False
+    )
+
+    user = Column(
+        String,
+        nullable=False
+    )
\ No newline at end of file