How to update a nested object with nestjs and mongooose

How to Update a Nested Object with NestJS and Mongoose

When working with NestJS and Mongoose, you may come across situations where you need to update a nested object within a document in MongoDB. In this blog post, we will explore different solutions to achieve this using TypeScript.

Solution 1: Using the dot notation

One way to update a nested object is by using the dot notation provided by MongoDB. This allows you to specify the path to the nested object within the update query.

Here’s an example of how you can update a nested object using the dot notation:

const updatedData = await Model.updateOne(
  { _id: documentId },
  { $set: { 'nestedObject.property': newValue } }
);

In the above code snippet, Model refers to your Mongoose model, documentId is the ID of the document you want to update, nestedObject.property is the path to the nested property you want to update, and newValue is the new value you want to set.

Solution 2: Using the positional operator

If you want to update a specific element within an array nested within your document, you can use the positional operator provided by MongoDB. This allows you to update the first matching element within the array.

Here’s an example of how you can update a nested object within an array using the positional operator:

const updatedData = await Model.updateOne(
  { _id: documentId, 'nestedArray._id': nestedObjectId },
  { $set: { 'nestedArray.$.property': newValue } }
);

In the above code snippet, nestedArray._id is used to find the specific element within the array based on its ID, and nestedArray.$.property is the path to the property you want to update within that element.

Remember to replace Model, documentId, nestedObjectId, newValue, and the path to the nested property or array element with the appropriate values for your use case.

These are just two of the many ways you can update nested objects with NestJS and Mongoose. Depending on your specific requirements, you may need to explore other approaches such as using the $set operator with the $[identifier] syntax or using the findOneAndUpdate method instead of updateOne.

Feel free to experiment with these solutions and choose the one that best fits your needs.

That’s it for this blog post! We hope you found these solutions helpful in updating nested objects with NestJS and Mongoose. If you have any further questions or suggestions, please let us know in the comments below.

Happy coding!