#!/usr/bin/env ruby
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# Copyright 2015 gRPC authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# Sample app that accesses a Calc service running on a Ruby gRPC server and
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# helps validate RpcServer as a gRPC server using proto2 serialization.
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#
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# Usage: $ path/to/math_client.rb
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this_dir = File.expand_path(File.dirname(__FILE__))
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lib_dir = File.join(File.dirname(this_dir), 'lib')
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$LOAD_PATH.unshift(lib_dir) unless $LOAD_PATH.include?(lib_dir)
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$LOAD_PATH.unshift(this_dir) unless $LOAD_PATH.include?(this_dir)
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require 'grpc'
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require 'math_services_pb'
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require 'optparse'
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require 'logger'
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include GRPC::Core::TimeConsts
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module StdoutLogger
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def logger
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LOGGER
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end
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LOGGER = Logger.new(STDOUT)
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end
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GRPC.extend(StdoutLogger)
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def do_div(stub)
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GRPC.logger.info('request_response')
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GRPC.logger.info('----------------')
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req = Math::DivArgs.new(dividend: 7, divisor: 3)
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GRPC.logger.info("div(7/3): req=#{req.inspect}")
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resp = stub.div(req)
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GRPC.logger.info("Answer: #{resp.inspect}")
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GRPC.logger.info('----------------')
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end
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def do_sum(stub)
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# to make client streaming requests, pass an enumerable of the inputs
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GRPC.logger.info('client_streamer')
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GRPC.logger.info('---------------')
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reqs = [1, 2, 3, 4, 5].map { |x| Math::Num.new(num: x) }
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GRPC.logger.info("sum(1, 2, 3, 4, 5): reqs=#{reqs.inspect}")
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resp = stub.sum(reqs) # reqs.is_a?(Enumerable)
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GRPC.logger.info("Answer: #{resp.inspect}")
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GRPC.logger.info('---------------')
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end
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def do_fib(stub)
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GRPC.logger.info('server_streamer')
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GRPC.logger.info('----------------')
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req = Math::FibArgs.new(limit: 11)
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GRPC.logger.info("fib(11): req=#{req.inspect}")
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resp = stub.fib(req)
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resp.each do |r|
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GRPC.logger.info("Answer: #{r.inspect}")
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end
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GRPC.logger.info('----------------')
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end
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def do_div_many(stub)
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GRPC.logger.info('bidi_streamer')
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GRPC.logger.info('-------------')
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reqs = []
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reqs << Math::DivArgs.new(dividend: 7, divisor: 3)
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reqs << Math::DivArgs.new(dividend: 5, divisor: 2)
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reqs << Math::DivArgs.new(dividend: 7, divisor: 2)
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GRPC.logger.info("div(7/3), div(5/2), div(7/2): reqs=#{reqs.inspect}")
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resp = stub.div_many(reqs)
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resp.each do |r|
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GRPC.logger.info("Answer: #{r.inspect}")
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end
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GRPC.logger.info('----------------')
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end
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def load_test_certs
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this_dir = File.expand_path(File.dirname(__FILE__))
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data_dir = File.join(File.dirname(this_dir), 'spec/testdata')
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files = ['ca.pem', 'server1.key', 'server1.pem']
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files.map { |f| File.open(File.join(data_dir, f)).read }
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end
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def test_creds
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certs = load_test_certs
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GRPC::Core::ChannelCredentials.new(certs[0])
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end
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def main
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options = {
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'host' => 'localhost:7071',
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'secure' => false
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}
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OptionParser.new do |opts|
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opts.banner = 'Usage: [--host <hostname>:<port>] [--secure|-s]'
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opts.on('--host HOST', '<hostname>:<port>') do |v|
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options['host'] = v
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end
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opts.on('-s', '--secure', 'access using test creds') do |v|
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options['secure'] = v
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end
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end.parse!
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# The Math::Math:: module occurs because the service has the same name as its
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# package. That practice should be avoided by defining real services.
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if options['secure']
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stub_opts = {
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:creds => test_creds,
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GRPC::Core::Channel::SSL_TARGET => 'foo.test.google.fr',
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timeout: INFINITE_FUTURE,
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}
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stub = Math::Math::Stub.new(options['host'], **stub_opts)
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GRPC.logger.info("... connecting securely on #{options['host']}")
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else
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stub = Math::Math::Stub.new(options['host'], :this_channel_is_insecure, timeout: INFINITE_FUTURE)
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GRPC.logger.info("... connecting insecurely on #{options['host']}")
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end
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do_div(stub)
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do_sum(stub)
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do_fib(stub)
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do_div_many(stub)
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end
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main
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