In this book, you will find a number of styles of text that distinguish between different kinds of information. Here are some examples of these styles, and an explanation of their meaning.

Code words in text are shown as follows: "After the name and the type parameters, usually a river requires an extra configuration that can be passed in the _metaproperty "

A block of code is set as follows:

cluster.name: elasticsearch
node.name: "My wonderful server"
network.host: 192.168.0.1
discovery.zen.ping.unicast.hosts: ["192.168.0.2","192.168.0.3[9300-9400]"]

Any command-line input or output is written as follows:

curl -XDELETE 'http://127.0.0.1:9200/_river/my_river/'