[Ruby] HTTP ステータスコードを扱うのに WEBrick::HTTPStatus が便利

WEBrick::HTTPStatus

WEBrick::HTTPStatus は標準添付ライブラリなので Gem なしで使えて便利

WEBrick::HTTPStatus.info?(101)
#=> true
WEBrick::HTTPStatus.reason_phrase(101)
#=> "Switching Protocols"

WEBrick::HTTPStatus.success?(200)
#=> true
WEBrick::HTTPStatus.reason_phrase(200)
#=> "OK"

WEBrick::HTTPStatus.redirect?(301)
#=> true
WEBrick::HTTPStatus.reason_phrase(301)
#=> "Moved Permanently"

WEBrick::HTTPStatus.client_error?(403)
#=> true
WEBrick::HTTPStatus.reason_phrase(403)
#=> "Forbidden"

WEBrick::HTTPStatus.server_error?(500)
#=> true
WEBrick::HTTPStatus.reason_phrase(500)
#=> "Internal Server Error"

参考

• module WEBrick::HTTPStatus
• [Wikipedia] HTTPステータスコード