grape_runtime_log.rb

require 'grape'

class API < Grape::API
  before do
    @log_start_t = Time.now
    Rails.logger.info "  Parameters: #{params.to_hash.except("route_info")}"
  end
  
  after do
    @log_end_t = Time.now
    total_runtime = ((@log_end_t -  @log_start_t) * 1000).round(1)
    db_runtime = (ActiveRecord::RuntimeRegistry.sql_runtime || 0).round(1)
    Rails.logger.info "Completed in #{total_runtime}ms (ActiveRecord: #{db_runtime}ms)"
  end
end