Sometimes you just need the first element in a group you retrieved with a MongoDB aggregation. Fortunately, that's easy to do with MongoTemplate in Spring Boot.
If you're looking to grab a nested document from your MongoDB aggregation pipeline, you should use the replaceRoot operation. Fortunately, that's easy to do with MongoTemplate.
It's often the case that you'll use a MongoDB aggregation pipeline to group related documents. Fortunately, you can do that easily in Spring Boot with MongoTemplate.
Sometimes you don't want to return all the results from a MongoDB aggregation pipeline. On some occasions, you might like to skip the first few elements.