gistfile1.txt

2.1.5 :023 > a
 => {:test=>"one two three", :foo=>456262, :nested=>{:is=>"pretty hard with csvs, and regular expressions"}} 
2.1.5 :024 > a.to_json
 => "{\"test\":\"one two three\",\"foo\":456262,\"nested\":{\"is\":\"pretty hard with csvs, and regular expressions\"}}" 
2.1.5 :025 > b = Base64.encode64(a.to_json)
Base64.encode64
2.1.5 :025 > b = Base64.encode64(a.to_json)
 => "eyJ0ZXN0Ijoib25lIHR3byB0aHJlZSIsImZvbyI6NDU2MjYyLCJuZXN0ZWQi\nOnsiaXMiOiJwcmV0dHkgaGFyZCB3aXRoIGNzdnMsIGFuZCByZWd1bGFyIGV4\ncHJlc3Npb25zIn19\n" 
2.1.5 :026 > Base64.decode64(b)
 => "{\"test\":\"one two three\",\"foo\":456262,\"nested\":{\"is\":\"pretty hard with csvs, and regular expressions\"}}" 
2.1.5 :027 > JSON.parse(Base64.decode64(Base64.encode64(a.to_json)))
 => {"test"=>"one two three", "foo"=>456262, "nested"=>{"is"=>"pretty hard with csvs, and regular expressions"}}