Accessing result of inserted document with Node JS and Mongoose

Question

I have this code:

var newresult = ""

oneDoc = { "adClientID": *randomID*, "adClientName": "abc", "adClientNameUPC": "ABC" }
newdoc.push(oneDoc)

await AdClient.create(newdoc, (err, result) => {
    console.log(result)
    console.log(result.adClientID)
    newresult = result
})
console.log(newresult)

Now I need to access the values that have been added to the collection.

With this code, the line that prints "result" works fine and print the following:

{
adClientID: 'da7d3d78-b873-4cdd-ae85-3726d3cbd8a7',
adClientName: 'abc',
adClientNameUPC: 'ABC',
_id: '5f6e4582a790764cab84f586',
__v: 0
}

But the line that prints result.adClientID returns undefined and the line that prints newresult returns an empty string.

What am I missing that prevent me to access specific data that was added?

Answer 1

I could be wrong, but I think your await is not actually awaiting anything. Mongoose says that this function can return a Promise (which can be awaited) or undefined.

Returns undefined if used with callback or a Promise otherwise.

I would recommend against mixing styles of asynchronous programming anyways.

I'm not too familiar with .create specifically because we usually use upserts, but here is how I would write it:

const updated = await AdModel.findOneAndUpdate(
  { adClientID: oneDoc.adClientID },
  { $set: { ...oneDoc } },
  { new: true, upsert: true, ...options },
}).lean();

console.log(updated);