How to validate if a string is json in a Rails model

Question

I\'m building a simple app and want to be able to store json strings in a db. I have a table Interface with a column json, and I want my rails model to validate the value of the

Answer 1

The most simple and elegant way, imo. The top upvoted answers will either return true when passing a string containing integers or floats, or throw an error in this case.

def valid_json?(string)
    hash = Oj.load(string)
    hash.is_a?(Hash) || hash.is_a?(Array)
rescue Oj::ParseError
    false
end