We can locate a single document that satisfies a query condition and update it atomically in a single operation using MongoDB’s find_One_And_Update function. Bobcares, as a part of our Server Management Service offers solutions to every query that comes our way.

The find_One_And_Update function in MongoDB

With MongoDB’s findOneAndUpdate method, we can find a single document that satisfies a query condition and atomically update it in a single operation. When we wish to edit a single document and obtain either the original document or the changed one, this method is helpful. The syntax is as follows:

Let’s look into each of the parameters in the syntax:

1.  <filter>:

Set the search parameters to locate the document we wish to change.

2. <update>:

Indicates the change we want to make.

3. (Optional) projection:

Specifies which fields should be returned in the document and which should not.

4. (Optional) sort:

Defines the matching documents’ sort order.

5. (Optional) returnOriginal:

Returns the unaltered version if true is set. Returns the updated file if false is set. True is the default.

6. (Optional) upsert:

If set to true and there is no matching document, produces a new document. True is the default.

An Example

The document in the user’s collection whose _id field matches the given ObjectId will update in this example. The name and age fields will have new values using the $set operator. In order to return the new document, the returnOriginal option will change to false.

Based on the unique needs, we can modify the filter, update, and other choices.

[Want to learn more? Reach out to us if you have any further questions.]

Conclusion

Both the MongoDB shell and a variety of MongoDB drivers support the findOneAndUpdate method. Depending on the language we use, the syntax could change slightly.