location updates saved to db and base endpoints for other modules started

models/User/model.js

@@ -25,6 +25,11 @@ const schema = new Schema({
     type: Date,
     required: true,
   },
+  createdBy: {
+    type: Types.ObjectId,
+    required: true,
+    ref: "user",
+  },
 });
 
 export default model("user", schema);