Update: Models

app-backend/models/database/playlists.model.js

@@ -0,0 +1,18 @@
+module.exports = mongoose => {
+  let schema = mongoose.Schema({
+      userId: String,
+      videoIds: Array,
+      name: String,
+      isActive: Boolean
+    },
+    { timestamps: true }
+  );
+
+  schema.method("toJSON", function() {
+    const { __v, _id, ...object } = this.toObject();
+    object.id = _id;
+    return object;
+  });
+
+  return mongoose.model("playlists", schema);
+};