Code Quality Rank: L3
Monthly Downloads: 1,551,315
Programming language: Ruby
License: Apache License 2.0
Tags: Search     Projects     Elastic Search    
Latest version: v7.15.0

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This repository contains Ruby integrations for Elasticsearch.

6.x 7.x main Code Climate

The elasticsearch library is a wrapper for two separate libraries:

require 'elasticsearch'

client = Elasticsearch::Client.new log: true

# if you specify Elasticsearch host
# client = Elasticsearch::Client.new url: 'http://localhost:9200', log: true



client.search q: 'test'

# etc.

Both of these libraries are extensively documented. Please read the elasticsearch-transport and the elasticsearch-api documentation carefully.

See also doc/examples for some practical examples.

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.

This repository contains these additional Ruby libraries:

Please see their respective READMEs for information and documentation.

For integration with Ruby models and Rails applications, see the elasticsearch-rails project.


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.


Install the elasticsearch package from Rubygems:

gem install elasticsearch

To use an unreleased version, either add it to your Gemfile for Bundler:

gem 'elasticsearch', git: 'git://github.com/elasticsearch/elasticsearch-ruby.git'

or install it from a source code checkout:

git clone https://github.com/elasticsearch/elasticsearch-ruby.git
cd elasticsearch-ruby/elasticsearch
bundle install
rake install


To work on the code, clone and bootstrap the project first:

git clone https://github.com/elasticsearch/elasticsearch-ruby.git
cd elasticsearch-ruby/
bundle exec rake setup
bundle exec rake bundle

This will clone the Elasticsearch repository into the project, and run bundle install in all subprojects. There are a few tasks to work with Elasticsearch. Use rake -T and look for the tasks in the elasticsearch namespace. You can build elasticsearch with rake elasticsearch:build after having ran setup.

To run tests, you need to start a testing cluster on port 9250, or provide a different one in the TEST_CLUSTER_PORT environment variable.

There's a Rake task to start a testing cluster in a Docker container:

rake docker:start[version] - E.g.: rake docker:start[7.x-SNAPSHOT]. To start the container with Platinum, pass it in as a parameter: rake docker:start[7.x-SNAPSHOT,xpack].

To run tests against unreleased Elasticsearch versions, you can use the rake elasticsearch:build Rake task to build Elasticsearch from the cloned source (use rake elasticsearch:update to update the repository):

Note: If you have gems from the elasticsearch family installed system-wide, and want to use development ones, prepend the command with bundle exec.

rake elasticsearch:build

This is going to create the build in ./tmp/builds/.

You can pass a branch name (tag, commit, ...) as the Rake task variable:

rake elasticsearch:build[origin/1.x]

To run all the tests in all the subprojects, use the Rake task:

time rake test:client

By default, tests will atempt to use http://localhost:9200 as a test server. If you're using a different host/port, set the TEST_ES_SERVER environment variable, e.g.:

$ TEST_ES_SERVER='http://localhost:9250' be rake test:client


This software is licensed under the [Apache 2 license](./LICENSE).

*Note that all licence references and agreements mentioned in the elasticsearch-ruby README section above are relevant to that project's source code only.