1#!/usr/bin/env ruby 2 3# Copyright 2015 gRPC authors. 4# 5# Licensed under the Apache License, Version 2.0 (the "License"); 6# you may not use this file except in compliance with the License. 7# You may obtain a copy of the License at 8# 9# http://www.apache.org/licenses/LICENSE-2.0 10# 11# Unless required by applicable law or agreed to in writing, software 12# distributed under the License is distributed on an "AS IS" BASIS, 13# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14# See the License for the specific language governing permissions and 15# limitations under the License. 16 17# Sample app that accesses a Calc service running on a Ruby gRPC server and 18# helps validate RpcServer as a gRPC server using proto2 serialization. 19# 20# Usage: $ path/to/math_client.rb 21 22this_dir = File.expand_path(File.dirname(__FILE__)) 23lib_dir = File.join(File.dirname(this_dir), 'lib') 24$LOAD_PATH.unshift(lib_dir) unless $LOAD_PATH.include?(lib_dir) 25$LOAD_PATH.unshift(this_dir) unless $LOAD_PATH.include?(this_dir) 26 27require 'grpc' 28require 'math_services_pb' 29require 'optparse' 30require 'logger' 31 32include GRPC::Core::TimeConsts 33 34module StdoutLogger 35 def logger 36 LOGGER 37 end 38 39 LOGGER = Logger.new(STDOUT) 40end 41 42GRPC.extend(StdoutLogger) 43 44def do_div(stub) 45 GRPC.logger.info('request_response') 46 GRPC.logger.info('----------------') 47 req = Math::DivArgs.new(dividend: 7, divisor: 3) 48 GRPC.logger.info("div(7/3): req=#{req.inspect}") 49 resp = stub.div(req) 50 GRPC.logger.info("Answer: #{resp.inspect}") 51 GRPC.logger.info('----------------') 52end 53 54def do_sum(stub) 55 # to make client streaming requests, pass an enumerable of the inputs 56 GRPC.logger.info('client_streamer') 57 GRPC.logger.info('---------------') 58 reqs = [1, 2, 3, 4, 5].map { |x| Math::Num.new(num: x) } 59 GRPC.logger.info("sum(1, 2, 3, 4, 5): reqs=#{reqs.inspect}") 60 resp = stub.sum(reqs) # reqs.is_a?(Enumerable) 61 GRPC.logger.info("Answer: #{resp.inspect}") 62 GRPC.logger.info('---------------') 63end 64 65def do_fib(stub) 66 GRPC.logger.info('server_streamer') 67 GRPC.logger.info('----------------') 68 req = Math::FibArgs.new(limit: 11) 69 GRPC.logger.info("fib(11): req=#{req.inspect}") 70 resp = stub.fib(req) 71 resp.each do |r| 72 GRPC.logger.info("Answer: #{r.inspect}") 73 end 74 GRPC.logger.info('----------------') 75end 76 77def do_div_many(stub) 78 GRPC.logger.info('bidi_streamer') 79 GRPC.logger.info('-------------') 80 reqs = [] 81 reqs << Math::DivArgs.new(dividend: 7, divisor: 3) 82 reqs << Math::DivArgs.new(dividend: 5, divisor: 2) 83 reqs << Math::DivArgs.new(dividend: 7, divisor: 2) 84 GRPC.logger.info("div(7/3), div(5/2), div(7/2): reqs=#{reqs.inspect}") 85 resp = stub.div_many(reqs) 86 resp.each do |r| 87 GRPC.logger.info("Answer: #{r.inspect}") 88 end 89 GRPC.logger.info('----------------') 90end 91 92def load_test_certs 93 this_dir = File.expand_path(File.dirname(__FILE__)) 94 data_dir = File.join(File.dirname(this_dir), 'spec/testdata') 95 files = ['ca.pem', 'server1.key', 'server1.pem'] 96 files.map { |f| File.open(File.join(data_dir, f)).read } 97end 98 99def test_creds 100 certs = load_test_certs 101 GRPC::Core::ChannelCredentials.new(certs[0]) 102end 103 104def main 105 options = { 106 'host' => 'localhost:7071', 107 'secure' => false 108 } 109 OptionParser.new do |opts| 110 opts.banner = 'Usage: [--host <hostname>:<port>] [--secure|-s]' 111 opts.on('--host HOST', '<hostname>:<port>') do |v| 112 options['host'] = v 113 end 114 opts.on('-s', '--secure', 'access using test creds') do |v| 115 options['secure'] = v 116 end 117 end.parse! 118 119 # The Math::Math:: module occurs because the service has the same name as its 120 # package. That practice should be avoided by defining real services. 121 if options['secure'] 122 stub_opts = { 123 :creds => test_creds, 124 GRPC::Core::Channel::SSL_TARGET => 'foo.test.google.fr', 125 timeout: INFINITE_FUTURE, 126 } 127 stub = Math::Math::Stub.new(options['host'], **stub_opts) 128 GRPC.logger.info("... connecting securely on #{options['host']}") 129 else 130 stub = Math::Math::Stub.new(options['host'], :this_channel_is_insecure, timeout: INFINITE_FUTURE) 131 GRPC.logger.info("... connecting insecurely on #{options['host']}") 132 end 133 134 do_div(stub) 135 do_sum(stub) 136 do_fib(stub) 137 do_div_many(stub) 138end 139 140main 141