Executing geo distance aggregations

Among the other standard types that we have seen in the previous aggregations, Elasticsearch allows for executing aggregations against a GeoPoint: the geo distance aggregations. This is an evolution of the previous discussed range aggregations built to work on geo locations.

Getting ready

You need an up-and-running Elasticsearch installation, as we described in the Downloading and installing Elasticsearch recipe in Chapter 2, Downloading and Setup.

To execute curl via the command-line, you need to install curl for your operative system.

To correctly execute the following command, you need an index populated with the script (chapter_08/populate_aggregations.sh) available in the online code.

How to do it...

For executing geo distance aggregations, we will perform the following steps:

1. Using the position field available in the documents, we want to aggregate the other documents in five ranges:

   • Less than 10 kilometers

   • From 10 kilometers to 20

   • From 20 kilometers to 50...