RubberBand

An ElasticSearch client with ThriftClient-like failover handling.

License

Features

Automatic failover, retry, and peer discovery
Support for multiple transports (HTTP, Thrift, Memcached)
Support for multiple encodings (JSON, Smile TODO)

Rubberband uses MultiJson for JSON encoding and decoding and supports all JSON backends that MultiJson supports.

The HTTP transport uses Faraday, which also supports a number of http backends. Choose the one that works best for you.

Supported Rubies

Tested on 1.8.7, 1.9.2, 1.9.3, and Rubinius in 1.8 and 1.9 mode. Ruby 1.8.6 is NOT supported due to missing String#bytesize.

Usage

Instantiate a client:

client = ElasticSearch.new('http://127.0.0.1:9200', :index => "twitter", :type => "tweet")

Instantiate a client with multiple servers:

client = ElasticSearch.new(['127.0.0.1:9200', '127.0.0.1:9201'])

Instantiate a client using a Heroku URL (this sets the default index):

client = ElasticSearch.new(ENV['ELASTICSEARCH_URL'])

Connect using the thrift transport (requires the thrift gem and elasticsearch thrift plugin to be installed):

client = ElasticSearch.new('127.0.0.1:9500', :transport => ElasticSearch::Transport::Thrift)

Pass a block to Faraday to configure middleware and options:

  client = ElasticSearch::Client.new('127.0.0.1:9200') do |conn|
    conn.response :logger
    conn.adapter Faraday.default_adapter
  end

API:

  client.default_index = "test_index"
  client.default_type  = "test_type"
  client.index({:body => "elasticsearch is cool"}, :id => 1)  
  client.get("1")  
  client.search("body:elasticsearch")

TODO

See TODO file.

Contributing

http://github.com/grantr/rubberband

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