diff --git a/src/gopraha/go.mod b/src/gopraha/go.mod
new file mode 100644
index 0000000000000000000000000000000000000000..e66ba3b0c50e625cfba73f89bfc8f9288c1dae2f
--- /dev/null
+++ b/src/gopraha/go.mod
@@ -0,0 +1,5 @@
+module github.com/turngeek/examples-go/src/gopraha
+
+go 1.16
+
+require github.com/segmentio/kafka-go v0.4.16 // indirect
diff --git a/src/gopraha/go.sum b/src/gopraha/go.sum
new file mode 100644
index 0000000000000000000000000000000000000000..5e77eb2d4aeb9a74803063c326598447b3e2f9f7
--- /dev/null
+++ b/src/gopraha/go.sum
@@ -0,0 +1,29 @@
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/eapache/go-xerial-snappy v0.0.0-20180814174437-776d5712da21/go.mod h1:+020luEh2TKB4/GOp8oxxtq0Daoen/Cii55CzbTV6DU=
+github.com/frankban/quicktest v1.11.3/go.mod h1:wRf/ReqHper53s+kmmSZizM8NamnL3IM0I9ntUbOk+k=
+github.com/golang/snappy v0.0.1 h1:Qgr9rKW7uDUkrbSmQeiDsGa8SjGyCOGtuasMWwvp2P4=
+github.com/golang/snappy v0.0.1/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
+github.com/google/go-cmp v0.5.4/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/klauspost/compress v1.9.8 h1:VMAMUUOh+gaxKTMk+zqbjsSjsIcUcL/LF4o63i82QyA=
+github.com/klauspost/compress v1.9.8/go.mod h1:RyIbtBH6LamlWaDj8nUwkbUhJ87Yi3uG0guNDohfE1A=
+github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
+github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
+github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
+github.com/pierrec/lz4 v2.6.0+incompatible h1:Ix9yFKn1nSPBLFl/yZknTp8TU5G4Ps0JDmguYK6iH1A=
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+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/src/hello-grpc/client/client/gen.go b/src/hello-grpc/client/client/gen.go
new file mode 100644
index 0000000000000000000000000000000000000000..4ca233955744c8e2868e0aa4cb06bf034d92e5bc
--- /dev/null
+++ b/src/hello-grpc/client/client/gen.go
@@ -0,0 +1,3 @@
+package client
+
+//go:generate protoc --go_out=. --go_opt=paths=source_relative --go-grpc_out=. --go-grpc_opt=paths=source_relative hello/hello.proto
diff --git a/src/hello-grpc/client/client/hello/hello.proto b/src/hello-grpc/client/client/hello/hello.proto
new file mode 100644
index 0000000000000000000000000000000000000000..dd69a491ffe99ea51ccba17a8037a9a88435134a
--- /dev/null
+++ b/src/hello-grpc/client/client/hello/hello.proto
@@ -0,0 +1,14 @@
+syntax = "proto3";
+package hello;
+option go_package = "github.com/turngeek/examples-go/src/hello-grpc/server/grpc/hello";
+
+service Greeter {
+ // Sends a greeting
+ rpc SayHello (HelloRequest) returns (HelloReply) {}
+}
+message HelloRequest {
+ string name = 1;
+}
+message HelloReply {
+ string message = 1;
+}
diff --git a/src/hello-grpc/client/go.mod b/src/hello-grpc/client/go.mod
new file mode 100644
index 0000000000000000000000000000000000000000..fc9a44b2ee1d64cce995b3f38f0929368aa35d72
--- /dev/null
+++ b/src/hello-grpc/client/go.mod
@@ -0,0 +1,11 @@
+module github.com/turngeek/examples-go/src/hello-grpc/client
+
+go 1.16
+
+require (
+ golang.org/x/net v0.0.0-20210525063256-abc453219eb5 // indirect
+ golang.org/x/sys v0.0.0-20210608053332-aa57babbf139 // indirect
+ google.golang.org/genproto v0.0.0-20210608205507-b6d2f5bf0d7d // indirect
+ google.golang.org/grpc v1.38.0 // indirect
+ google.golang.org/protobuf v1.26.0 // indirect
+)
diff --git a/src/hello-grpc/client/go.sum b/src/hello-grpc/client/go.sum
new file mode 100644
index 0000000000000000000000000000000000000000..b31b4268d7e6fafc38c24cd9ea18eca012390155
--- /dev/null
+++ b/src/hello-grpc/client/go.sum
@@ -0,0 +1,115 @@
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diff --git a/src/hello-grpc/client/main.go b/src/hello-grpc/client/main.go
new file mode 100644
index 0000000000000000000000000000000000000000..f00982e1acf1572727d78eaad28775b863eec09b
--- /dev/null
+++ b/src/hello-grpc/client/main.go
@@ -0,0 +1,39 @@
+package main
+
+import (
+ "context"
+ "log"
+ "os"
+ "time"
+
+ pb "github.com/turngeek/examples-go/src/hello-grpc/client/client/hello"
+ "google.golang.org/grpc"
+)
+
+const (
+ address = "localhost:9111"
+ defaultName = "world"
+)
+
+func main() {
+ // Set up a connection to the server.
+ conn, err := grpc.Dial(address, grpc.WithInsecure(), grpc.WithBlock())
+ if err != nil {
+ log.Fatalf("did not connect: %v", err)
+ }
+ defer conn.Close()
+ c := pb.NewGreeterClient(conn)
+
+ // Contact the server and print out its response.
+ name := defaultName
+ if len(os.Args) > 1 {
+ name = os.Args[1]
+ }
+ ctx, cancel := context.WithTimeout(context.Background(), time.Second)
+ defer cancel()
+ r, err := c.SayHello(ctx, &pb.HelloRequest{Name: name})
+ if err != nil {
+ log.Fatalf("could not greet: %v", err)
+ }
+ log.Printf("Greeting: %s", r.GetMessage())
+}
diff --git a/src/hello-grpc/server/go.mod b/src/hello-grpc/server/go.mod
new file mode 100644
index 0000000000000000000000000000000000000000..a2b01a2f8a285ecc8a739a10252704f98c9f0f0c
--- /dev/null
+++ b/src/hello-grpc/server/go.mod
@@ -0,0 +1,11 @@
+module github.com/turngeek/examples-go/src/hello-grpc/server
+
+go 1.16
+
+require (
+ golang.org/x/net v0.0.0-20210525063256-abc453219eb5 // indirect
+ golang.org/x/sys v0.0.0-20210608053332-aa57babbf139 // indirect
+ google.golang.org/genproto v0.0.0-20210608205507-b6d2f5bf0d7d // indirect
+ google.golang.org/grpc v1.38.0 // indirect
+ google.golang.org/protobuf v1.26.0 // indirect
+)
diff --git a/src/hello-grpc/server/go.sum b/src/hello-grpc/server/go.sum
new file mode 100644
index 0000000000000000000000000000000000000000..b31b4268d7e6fafc38c24cd9ea18eca012390155
--- /dev/null
+++ b/src/hello-grpc/server/go.sum
@@ -0,0 +1,115 @@
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diff --git a/src/hello-grpc/server/grpc/gen.go b/src/hello-grpc/server/grpc/gen.go
new file mode 100644
index 0000000000000000000000000000000000000000..0270e4fb4ccb74caddcfd47ce24eaa0608ac21c9
--- /dev/null
+++ b/src/hello-grpc/server/grpc/gen.go
@@ -0,0 +1,3 @@
+package grpc
+
+//go:generate protoc --go_out=. --go_opt=paths=source_relative --go-grpc_out=. --go-grpc_opt=paths=source_relative hello/hello.proto
diff --git a/src/hello-grpc/server/grpc/hello/hello.proto b/src/hello-grpc/server/grpc/hello/hello.proto
new file mode 100644
index 0000000000000000000000000000000000000000..dd69a491ffe99ea51ccba17a8037a9a88435134a
--- /dev/null
+++ b/src/hello-grpc/server/grpc/hello/hello.proto
@@ -0,0 +1,14 @@
+syntax = "proto3";
+package hello;
+option go_package = "github.com/turngeek/examples-go/src/hello-grpc/server/grpc/hello";
+
+service Greeter {
+ // Sends a greeting
+ rpc SayHello (HelloRequest) returns (HelloReply) {}
+}
+message HelloRequest {
+ string name = 1;
+}
+message HelloReply {
+ string message = 1;
+}
diff --git a/src/hello-grpc/server/main.go b/src/hello-grpc/server/main.go
new file mode 100644
index 0000000000000000000000000000000000000000..a4e9b56df9e668c6d6b30d2578a26377c9837bfc
--- /dev/null
+++ b/src/hello-grpc/server/main.go
@@ -0,0 +1,38 @@
+package main
+
+import (
+ "context"
+ "log"
+ "net"
+
+ pb "github.com/turngeek/examples-go/src/hello-grpc/server/grpc/hello"
+ "google.golang.org/grpc"
+)
+
+const (
+ port = ":50051"
+)
+
+// server is used to implement helloworld.GreeterServer.
+type server struct {
+ pb.UnimplementedGreeterServer
+}
+
+// SayHello implements helloworld.GreeterServer
+func (s *server) SayHello(ctx context.Context, in *pb.HelloRequest) (*pb.HelloReply, error) {
+ log.Printf("Received: %v", in.GetName())
+ return &pb.HelloReply{Message: "Hello " + in.GetName()}, nil
+}
+
+func main() {
+ lis, err := net.Listen("tcp", port)
+ if err != nil {
+ log.Fatalf("failed to listen: %v", err)
+ }
+ s := grpc.NewServer()
+ pb.RegisterGreeterServer(s, &server{})
+ log.Printf("server listening at %v", lis.Addr())
+ if err := s.Serve(lis); err != nil {
+ log.Fatalf("failed to serve: %v", err)
+ }
+}
diff --git a/src/hello-kafka/go.sum b/src/hello-kafka/go.sum
new file mode 100644
index 0000000000000000000000000000000000000000..0301dfc2ca36813730fdbdf29d005e074b578c35
--- /dev/null
+++ b/src/hello-kafka/go.sum
@@ -0,0 +1,48 @@
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