faraday_bench.rb

#!/usr/bin/env ruby

require File.join(ENV.fetch('RAILS_ROOT'), 'config', 'environment')

Rails.logger.level = Logger::FATAL

module Faraday
  NUMBER_OF_REQUESTS = 10000

  class Ethereum
    def initialize(server, adapter)
      @adapter = adapter
      @json_rpc_call_id = 0
      @connection = Faraday.new(server) do |builder|
        builder.adapter adapter
      end.tap do |connection|
        unless server.user.blank?
          connection.basic_auth(server.user, server.password)
        end
      end
    end

    def run
      start = Time.now
      NUMBER_OF_REQUESTS.times do
        request
      end
      finish = Time.now

      @report = {
        adapter: @adapter,
        execution_time: finish - start,
        ops: NUMBER_OF_REQUESTS / (finish - start)
      }
    end

    def report
      @report
    end

    private

    def rpc_call_id
      @json_rpc_call_id += 1
    end

    def request
      response = @connection.post \
          '/',
          {jsonrpc: '2.0', id: rpc_call_id, method: :eth_blockNumber, params: []}.to_json,
          {'Accept' => 'application/json',
           'Content-Type' => 'application/json'}
      response.assert_success!
      response = JSON.parse(response.body)
      response.fetch('result')
    end
  end
end


%i[net_http net_http_persistent typhoeus].each do |adapter|
  bench = Faraday::Ethereum.new(
    URI.parse(::Blockchain.find_by(key: 'prt-kovan').server),
    adapter
  )

  bench.run

  puts bench.report
end