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