How can I use aggregation pipelines in MongoDB with Node.js?

How can I use aggregation pipelines in MongoDB with Node.js?

You can use the MongoDB Node.js driver to create aggregation pipelines. First, ensure you have the driver installed.

What are some common stages in an aggregation pipeline?

Common stages include $match, $group, $sort, and $project. Each stage transforms the data in different ways.

Can you give me an example of an aggregation pipeline?

Sure! Here's a simple example: db.collection.aggregate([{ $match: { status: 'A' } }, { $group: { _id: '$cust_id', total: { $sum: '$amount' } } }]).

How do I handle errors when using aggregation?

You can use try-catch blocks in your Node.js code to handle errors gracefully when executing aggregation queries.