Jbuilder #merge! doesn't follow json.key_format! rule

[aruprakshit]

I have in my partial:

json.key_format! camelize: :lower

json.credit_balance @user.available_credits
json.company_state @user.company_profile.state
json.subscription do
  json.merge! @user.subscription.to_h
end

But rendered json doesn't produced by following camelize: :lower rule.

{
  "creditBalance": 28,
  "companyState": "NJ",
  "subscription": {
    "active": true,
    "current_period_end": "03/02/2020"
  }
}

See current_period_end should be currentPeriodEnd.

I am using Rails 5.2.

[Deekor]

I'm on gem version 2.11.2 and still experiencing this issue.

  def as_json(options = nil)
    j = Jbuilder.new do |json|
      json.key_format! camelize: :lower
      json.merge! super.to_h
    end
    j.attributes!
  end