Ruby JSON parse changes Hash keys

The JSON generator converts symbols to strings because JSON does not support symbols. Since JSON keys are all strings, parsing a JSON document will produce a Ruby hash with string keys by default.

You can tell the parser to use symbols instead of strings by using the symbolize_names option.


original_hash = {:info => [{:from => "Ryan Bates", :message => "sup bra", :time => "04:35 AM"}]}
serialized = JSON.generate(original_hash)
new_hash = JSON.parse(serialized, {:symbolize_names => true})

 #=> [{:from=>"Ryan Bates", :message=>"sup bra", :time=>"04:35 AM"}]


Leave a Comment