Document not creating using MongoDB Session - database

Question

I am trying to implement MongoDB session but not able to achieve it because of less references available on the internet. Also when I run the below code it stuck at the create user method inside try catch block and because of that it is not saving a document inside collection. Help with this.
const mongoose = require("mongoose");
// Declare the Schema of the Mongo model
const userSchema = new mongoose.Schema({
userName: {
type: String,
required: true,
},
});
// Declare the Schema of the Mongo model
const productSchema = new mongoose.Schema({
productName: {
type: String,
required: true,
},
});
//Export the model
const UserModel = mongoose.model("User", userSchema);
const ProductModel = mongoose.model(`Product`, productSchema);
(async () => {
// Connecting
try {
await mongoose.connect(`mongodb://127.0.0.1:27017/Mongo_Transaction`, {
useNewUrlParser: true,
useUnifiedTopology: true,
});
console.log(`Connected`);
// Initiating Mongodb Session
const session = await mongoose.startSession();
session.startTransaction();
try {
// Creating User
const user = await UserModel.create(
[
{
userName: "Bhavesh",
},
],
{ session: session }
);
console.log(user);
// Creating Product
const product = await ProductModel.create(
[
{
productName: "Rahul",
},
],
{ session }
);
// Commit Session
await session.commitTransaction();
session.endSession();
console.log(`completed`);
} catch (err) {
await session.abortTransaction();
session.endSession();
}
} catch (err) {
console.log(err.stack);
}
})();