title: Rails render json object with camelCase
body: <p>I have the following controller code in a simple Rails API:</p>
  
  <pre><code>class Api::V1::AccountsController &lt; ApplicationController
    def index
      render json: Account.all
    end
  
    def show
      begin
        render json: Account.includes(:cash_flows).find(params[:id]), include: :cash_flows
      rescue ActiveRecord::RecordNotFound =&gt; e
        head :not_found
      end
    end
  end
  </code></pre>
  
  <p>The problem with this is that, the generated json have the format:</p>
  
  <pre><code>{
    id:2,
    name: 'Simple account',
    cash_flows: [
      {
        id: 1,
        amount: 34.3,
        description: 'simple description'
      },
      {
        id: 2,
        amount: 1.12,
        description: 'other description'
      }
    ]
  }
  </code></pre>
  
  <p><strong>I need that my generated json is camelCase</strong>('cashFlows' instead of 'cash_flows')</p>
  
  <p>Thanks in advance!!!</p>