diff --git a/grpc/ruby_client/helloworld_client.rb b/grpc/ruby_client/helloworld_client.rb
new file mode 100644
index 0000000..3721fc1
--- /dev/null
+++ b/grpc/ruby_client/helloworld_client.rb
@@ -0,0 +1,14 @@
+require 'grpc'
+require './proto/helloworld_services_pb'
+
+include Sample
+
+def main
+  stub = Greeter::Stub.new('127.0.0.1:5502', :this_channel_is_insecure)
+
+  hello_request = HelloRequest.new(first_name: "Roger", last_name: "Federer")
+  hello_reply = stub.say_hello(hello_request)
+  puts hello_reply.message
+end
+
+main
diff --git a/grpc/ruby_client/notification_client.rb b/grpc/ruby_client/notification_client.rb
new file mode 100644
index 0000000..8e819e0
--- /dev/null
+++ b/grpc/ruby_client/notification_client.rb
@@ -0,0 +1,16 @@
+require 'grpc'
+require './proto/notification_services_pb'
+
+include Sample
+
+def main
+  stub = Notifier::Stub.new('127.0.0.1:5502', :this_channel_is_insecure)
+
+  pereodic_hello_request = PereodicHelloRequest.new(first_name: "Roger", last_name: "Federer")
+  resp = stub.pereodic_hello(pereodic_hello_request)
+  resp.each do |r|
+    puts r.message
+  end
+end
+
+main
diff --git a/grpc/ruby_client/proto/helloworld_services_pb.rb b/grpc/ruby_client/proto/helloworld_services_pb.rb
index 583dbf5..873dbf8 100644
--- a/grpc/ruby_client/proto/helloworld_services_pb.rb
+++ b/grpc/ruby_client/proto/helloworld_services_pb.rb
@@ -2,7 +2,7 @@
 # Source: proto/helloworld.proto for package 'sample'
 
 require 'grpc'
-require 'proto/helloworld_pb'
+require './proto/helloworld_pb'
 
 module Sample
   module Greeter
diff --git a/grpc/ruby_client/proto/notification_pb.rb b/grpc/ruby_client/proto/notification_pb.rb
index 42c68f8..4786178 100644
--- a/grpc/ruby_client/proto/notification_pb.rb
+++ b/grpc/ruby_client/proto/notification_pb.rb
@@ -16,6 +16,6 @@
 end
 
 module Sample
-  PereodicHelloRequest = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("sample.PereodicHelloRequest").msgclass
-  PeriodicHelloReply = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("sample.PeriodicHelloReply").msgclass
+  PereodicHelloRequest = Google::Protobuf::DescriptorPool.generated_pool.lookup("sample.PereodicHelloRequest").msgclass
+  PeriodicHelloReply = Google::Protobuf::DescriptorPool.generated_pool.lookup("sample.PeriodicHelloReply").msgclass
 end
diff --git a/grpc/ruby_client/proto/notification_services_pb.rb b/grpc/ruby_client/proto/notification_services_pb.rb
index 17cdc0e..183a217 100644
--- a/grpc/ruby_client/proto/notification_services_pb.rb
+++ b/grpc/ruby_client/proto/notification_services_pb.rb
@@ -2,7 +2,7 @@
 # Source: proto/notification.proto for package 'sample'
 
 require 'grpc'
-require 'proto/notification_pb'
+require './proto/notification_pb'
 
 module Sample
   module Notifier