Ruby json/messagepack

Ruby193 json/messagepackメモ
一度シリアライズするとkeyがStringになる

• json

require 'json'

def hashtojson
  {"hoge" => 1, :fuga => 2}.to_json
end

def jsontohash(arg)
  JSON.parse(arg)
end

puts jsontohash(hashtojson)
#=> {"hoge" => 1, "fuga" => 2}

• messagepack

require 'msgpack'

def hashtomsgpack
  {"hoge" => 1, :fuga => 2}.to_msgpack
end

def msgpacktohash(arg)
  MessagePack.unpack(arg)
end

puts msgpacktohash(hashtomsgpack)
#=> {"hoge" => 1, "fuga" => 2}