How can I optimize my MongoDB queries using indexing in Node.js?

How can I optimize my MongoDB queries using indexing in Node.js?

You can optimize your MongoDB queries by creating indexes on fields that are frequently queried. In Node.js, you can use the Mongoose library to define indexes in your schema.

What types of indexes can I create in MongoDB?

MongoDB supports several types of indexes, including single field, compound, multi-key, text, and geospatial indexes. Each serves different use cases.

How do I create a compound index using Mongoose?

To create a compound index in Mongoose, you can define it in your schema like this: schema.index({ field1: 1, field2: -1 }); This creates an index on field1 in ascending order and field2 in descending order.

Can indexing slow down write operations?

Yes, while indexing can speed up read operations, it can slow down write operations because the index needs to be updated whenever a document is added, modified, or deleted.