ignore camelizing key when using key_format!

[kimyu92]

Is there a way to ignore certain keys from being camelized with jbuilder?

json.key_format! camelize: :lower

[rakeshpatra]

There is no inbuilt feature for that, but we can do something like this to achieve the same.

json.key_format! ->(key){ [KEY_TO_IGNORE].include?(key.to_sym) ? key : key.camelize(:lower) }

[SampsonCrowley]

@rakeshpatra that is actually an important missing piece from the docs; those who haven't read directly in the code may never know it's there

[SampsonCrowley]

that you can pass a "callable" (proc/lambda) I mean