This chapter provided you some very important functionalities of Elasticsearch, which every programmer needs to know while developing applications in real-time scenarios and working with a large number of datasets. We covered the bulk APIs by combining multiple requests into a single one to reduce the time and number of requests to process large datasets. We also saw some best practices to be kept in mind while working with these APIs, and most importantly, you got practical code examples that will help you through your journey with Elasticsearch.

In the next chapter, you are going to learn about search relevancy and how to control the scoring of your searches.