How to create/ insert a record in MongoDB via Node.js?

Q: How to create/ insert a record in MongoDB via Node.js?

db.collection.insertOne() db.collection.insertMany() const myDB = client.db("myDB"); const myColl = myDB.collection("pizzaMenu"); const doc = { name: "Neapolitan pizza", shape: "round" }; const result = await myColl.insertOne(doc); console.log( `A document was inserted with the _id: ${result.insertedId}`, ); await db.collection('inventory').insertMany([ { item: 'journal', qty: 25, size: { h: 14, w: 21, uom: 'cm' }, status: 'A' }, { item: 'notebook', qty: 50, size: { h: 8.5, w: 11, uom: 'in' }, status: 'A' }, { item: 'paper', qty: 100, size: { h: 8.5, w: 11, uom: 'in' }, status: 'D' }, { item: 'planner', qty: 75, size: { h: 22.85, w: 30, uom: 'cm' }, status: 'D' }, { item: 'postcard', qty: 45, size: { h: 10, w: 15.25, uom: 'cm' }, status: 'A' } ]);

Difficulty: 4/10

InsertOne/InsertMany, Error handling, Write concerns

MongoDB provides the following methods to insert documents into a collection:

1
db.collection.insertOne()
2
db.collection.insertMany()

db.collection.insertOne()

db.collection.insertMany()

Scenario Questions

0-2 years experience

1We have a simple Express endpoint that receives a JSON payload and needs to store it in a MongoDB collection. Walk me through the code you'd write to insert the document using the Node.js driver.
2If the insert fails because the database is down, how would you handle the error in your route handler?

2-5 years experience

1Our service now needs to insert multiple user activity logs at once. Which MongoDB driver method would you choose, and what considerations affect your choice?

Follow-up Questions

What default write concern does the driver use, and when would you change it?
How does using insertMany affect atomicity compared to multiple insertOne calls?
Can you show how you'd log insert latency for monitoring purposes?