Launch Cypher queries

cypher.rb

#!/usr/bin/env ruby

case ARGV.size
when 1
  host = ARGV[0]
  body = STDIN.read
when 2
  host = ARGV[0]
  body = ARGV[1]
else
  puts "Usage #$0 host [cypher]"
  exit 1
end

require "json"
body = { query: body }.to_json
exec "curl", "-w", "\n", "-s", "#{host}/db/data/cypher", "-H", "Content-Type: application/json", "-d", body