elastic-transport- provides the low-level code for connecting to an Elasticsearch cluster.
elasticsearch-api- provides a Ruby API for the Elasticsearch RESTful API.
Please refer to the full documentation on elastic.co for comprehensive information.
elasticsearch gem from Rubygems:
$ gem install elasticsearch
Or add it to your project's Gemfile:
gem 'elasticsearch', 'VERSION'
require 'elasticsearch' client = Elasticsearch::Client.new(log: true) # if you specify Elasticsearch host # client = Elasticsearch::Client.new url: 'http://localhost:9200', log: true client.transport.reload_connections! client.cluster.health client.search(q: 'test') # etc.
For optimal performance, you should use a HTTP library which supports persistent ("keep-alive") connections, e.g. Patron or Typhoeus. These libraries are not dependencies of the Elasticsearch gems. Ensure you define a dependency for a HTTP library in your own application.
Check out these other official Ruby libraries for working with Elasticsearch:
elasticsearch-rails- integration with Ruby models and Rails applications.
elasticsearch-dslwhich provides a Ruby API for the Elasticsearch Query DSL.
Please see their respective READMEs for information and documentation.
We follow Ruby’s own maintenance policy and officially support all currently maintained versions per Ruby Maintenance Branches.
Language clients are forward compatible; meaning that clients support communicating with greater or equal minor versions of Elasticsearch. Elasticsearch language clients are only backwards compatible with default distributions and without guarantees made.