Elastomer Client
Making a stupid simple Elasticsearch client so your project can be smarter!
Getting Started
Get started by cloning and running a few scripts:
$ git clone https://github.com/github/elastomer-client.git
$ cd elastomer-client
$ script/bootstrap
$ bundle exec rake test
Client
The client provides a one-to-one mapping to the Elasticsearch API endpoints. The API is decomposed into logical sections and accessed according to what you are trying to accomplish. Each logical section is represented as a client class and a top-level accessor is provided for each.
Cluster
API endpoints dealing with cluster level information and settings are found in the Cluster class.
require 'elastomer/client'
client = Elastomer::Client.new
# the current health summary
client.cluster.health
# detailed cluster state information
client.cluster.state
# the list of all index templates
client.cluster.templates
Index
The methods in the Index class deal with the management of indexes in the cluster. This includes setting up type mappings and adjusting settings. The actual indexing and search of documents are handled by the Docs class (discussed next).
require 'elastomer/client'
client = Elastomer::Client.new
index = client.index('twitter')
index.create(
:settings => { 'index.number_of_shards' => 3 },
:mappings => {
:tweet => {
:_source => { :enabled => true },
:_all => { :enabled => false },
:properties => {
:author => { :type => 'string', :index => 'not_analyzed' },
:tweet => { :type => 'string', :analyze => 'standard' }
}
}
}
)
index.exists?
index.exists? :type => 'tweet'
index.delete
Docs
The Docs class handles the indexing and searching of documents. Each instance is scoped to an index and optionally a document type.
require 'elastomer/client'
client = Elastomer::Client.new
docs = client.docs('twitter')
docs.index({
:_id => 1,
:_type => 'tweet',
:author => '@pea53',
:tweet => 'announcing Elastomer, the stupid simple Elasticsearch client'
})
docs.search({:query => {:match_all => {}}}, :size => 0)
Performance
By default Elastomer uses Net::HTTP (via Faraday) to communicate with Elasticsearch. You may find that Excon performs better for your use. To enable Excon, add it to your bundle and then change your Elastomer initialization thusly:
Elastomer::Client.new(url: YOUR_ES_URL, adapter: :excon)
Releasing
- Create a new branch from
master
- Bump the version number in
lib/elastomer/version.rb
- Update
CHANGELOG.md
with info about the new version - Execute
bin/rake build
. This will place a new gem file in thepkg/
folder. - Run
gem install pkg/elastomer-client-{VERSION}.gem
to install the new gem locally - Start an
irb
session,require "elastomer/client"
and make sure things work as you expect - Once everything is working as you expect, commit the version bump and open a PR
- Once you get approval and merge it to master, pull down a fresh copy of master and then...
- Run
rake release
- If necessary, manually push the new version to rubygems.org
- 🕺 💃 🎉