node mongoose how to auto increment - node.js

Question

Trying to follow the example here:
https://www.tutorialspoint.com/mongodb/mongodb_autoincrement_sequence.htm
export interface RowProps {
id?: number; // This is to auto increment
todoText: string;
}
const addAutoIncrement = async ({ db, collectionName, todoText }) => {
const getNextSequenceValue = (sequenceName: string) => {
const sequenceDocument = db
.collection<RowProps>(collectionName)
.findAndModify({
query: { _id: sequenceName },
update: { $inc: { sequence_value: 1 } },
new: true,
});
console.log('sequenceD', sequenceDocument)
return sequenceDocument.sequence_value;
};
db.collection<RowPropsClient>(collectionName).insertOne(
{
id: getNextSequenceValue('id'),
todoText
},
(err) => {
if (err) {
console.log("err");
}
}
);
}
// db is already defined and works
// I can add to the collection so this also works.
addAutoIncrement({ db, collectionName: 'todos', todoText: 'hello' });
Error: throw new Error('Collection#findAndModify unimplemented by driver');
^
Error: Collection#findAndModify unimplemented by driver
update
Tried to follow this example:
https://medium.com/#salonimalhotra1ind/how-to-increment-a-number-value-in-mongoose-785066ba09d8
const addAutoIncrement = async ({ db, collectionName, todoText }) => {
const modelTodo = db.model(collectionName, TodosSchema);
const res = await new modelTodo({ todoText }).save();
const { _id } = res;
return new Promise((resolve, reject) => {
modelTodo.findOneAndUpdate(
{ _id },
{ $inc: { id: 1 } },
{ new: true },
(err, res) => {
if (err) {
reject(err);
}
resolve(res);
}
);
});
};
**The result is just setting the value to 1 each time - not incrementing**

Answer 1

Collection#findAndModify() is a method that is implemented in the MongoDB shell, but not in the Node.js driver.
You should use Collection#findOneAndUpdate instead:
const { value : sequenceDocument } = db
.collection<RowProps>(collectionName)
.findOneAndUpdate({
{ _id: sequenceName },
{ $inc: { sequence_value: 1 } },
{ returnDocument : 'after' } // equivalent to `new: true`
});

Answer 2

ok I don't know why I didnt do this before. All the online examples make everything unnecessarily complicated.
Just get the total count and then add it.
const addAndIncrement = async ({ db, collection, todoText }) => {
const connectedModel = db.model(collection, TodosSchema);
const documentCount = await connectedModel.count({}); // get the total count
return new connectedModel({ todoText, id: documentCount }).save();
};
Unless anyone comes up with a more performant way, this is what I'm going with.