transport = ElasticSearch::HTTPTransport.new(['http://localhost:9200'])
client = ElasticSearch::Client.new(transport)

index = client.create_index('twitter')
index['tweet'].put(1, { foo: 'bar' })

query = { query: { query_string: { query: 'bar' } } }
results = index['tweet'].search(query)

results.total                         # 1

results.each do |result|
  result.score                        # 1.0
  result['foo']                       # bar
end

client['twitter'].search(query).type  # 'tweet'