add README.md

README.md

@@ -0,0 +1,28 @@
+# gRPC - demo
+
+## How to run it locally?
+
+**Prerequisites**:
+
+- Go 1.20+
+- [protoc](https://grpc.io/docs/protoc-installation/)
+- Go plugins for the protocol compiler:
+    - ``go install google.golang.org/protobuf/cmd/protoc-gen-go@v1.30.0``
+    - ``go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@v1.3.0``
+
+
+1. Clone this repo.
+2. ``cd ./grpc-demo``
+3. Run ``go generate ./...``.
+4. Compile and execute the server code - ``go run ./cmd/server/main.go``.
+5. From a different terminal, compile and execute the client code - ``go run ./cmd/client/main.go -example unary``.
+
+### Client - available examples
+
+1. **unary** - example of the simplest type of RPC where the client sends a single request and gets back a single
+   response. It's the default one.
+2. **server** - example of server streaming RPC.
+3. **client** - example of client streaming RPC.
+4. **bidirectional** - example of bidirectional streaming RPC.
+5. **james** - SayHelloToJames without error
+6. **jameserror** - error handling

internal/greeter/server_test.go

@@ -95,6 +95,8 @@ func TestServer_SayHelloBidirectionalStream(t *testing.T) {
 }
 
 func newServer(t *testing.T) proto.GreeterClient {
+	t.Helper()
+
 	buffer := 101024 * 1024
 	lis := bufconn.Listen(buffer)