Using Elasticsearch with MongoDB

MongoDB (https://www.mongodb.com/) is one of the most popular documented data stores, due to its simplicity of installation and the large community that is using it.

It's very common to use Elasticsearch as search or query layer and MongoDB as more secure data-stage in many architectures. In this recipe we'll see how simple it is to write in MongoDB reading from an Elasticsearch query stream using Alpakka.

Getting ready

You need an up-and-running Elasticsearch installation as we described in Downloading and installing Elasticsearch recipe in Chapter 1, Getting Started.

An IDE that supports Scala programming, such as IntelliJ IDEA, with the Scala plugin should be installed globally...