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OpenStructでJSONをオブジェクトっぽく扱う

Posted at

APIのレスポンスがオブジェクトで返ってくるようなものがあって、Rspecでうまくモックしたかったので。


json = { foo: "bar", hoge: { fuga: "fugafuga" } }.to_json
# => "{\"foo\":\"bar\",\"hoge\":{\"fuga\":\"fugafuga\"}}"

obj = JSON.parse(json, object_class: OpenStruct)
# => #<OpenStruct foo="bar", hoge=#<OpenStruct fuga="fugafuga">>

obj.foo
# => "bar"
obj.hoge
# =>  #<OpenStruct fuga="fugafuga">
obj.hoge.fuga
# => "fugafuga"
obj.hoge.hoge
# => nil
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