Node.js 8 the Right Way

Wrapping Up

In this chapter, you learned how to use Node.js to interact with the popular document-oriented datastore Elasticsearch. Elasticsearch stores JSON documents over HTTP and provides a rich search API, making it a great example to learn from as you start to think about creating your own RESTful APIs.

By taking advantage of the Commander module, you developed a command-line utility program with a number of useful commands for getting information into and out of Elasticsearch. In turn, this allowed us to discuss default parameters for JavaScript functions, and the useful Array methods filter and join.

As for DSLs, you learned the basics of Elasticsearch’s query language, which we’ll utilize more in upcoming chapters. And, importantly, ...