Chatwoot/app/controllers/api/v1/widget/labels_controller.rb

class Api::V1::Widget::LabelsController < Api::V1::Widget::BaseController
  def create
    if conversation.present? && label_defined_in_account?
      conversation.label_list.add(permitted_params[:label])
      conversation.save!
    end

    head :no_content
  end

  def destroy
    if conversation.present?
      conversation.label_list.remove(permitted_params[:id])
      conversation.save!
    end

    head :no_content
  end

  private

  def label_defined_in_account?
    label = @current_account.labels&.find_by(title: permitted_params[:label])
    label.present?
  end

  def permitted_params
    params.permit(:id, :label, :website_token)
  end
end