refactor(server/v2): simplify server component init (#20742)

server/v2/api/grpc/server.go

@@ -35,17 +35,17 @@ type GRPCService interface {
 	RegisterGRPCServer(gogogrpc.Server)
 }
 
-func New() GRPCServer {
-	return GRPCServer{}
+func New() *GRPCServer {
+	return &GRPCServer{}
 }
 
 // Init returns a correctly configured and initialized gRPC server.
 // Note, the caller is responsible for starting the server.
-func (g GRPCServer) Init(appI serverv2.AppI[transaction.Tx], v *viper.Viper, logger log.Logger) (serverv2.ServerComponent[transaction.Tx], error) {
+func (g *GRPCServer) Init(appI serverv2.AppI[transaction.Tx], v *viper.Viper, logger log.Logger) error {
 	cfg := DefaultConfig()
 	if v != nil {
 		if err := v.Sub(serverName).Unmarshal(&cfg); err != nil {
-			return GRPCServer{}, fmt.Errorf("failed to unmarshal config: %w", err)
+			return fmt.Errorf("failed to unmarshal config: %w", err)
 		}
 	}
 
@@ -61,18 +61,18 @@ func (g GRPCServer) Init(appI serverv2.AppI[transaction.Tx], v *viper.Viper, log
 	// the gRPC server exposes.
 	gogoreflection.Register(grpcSrv)
 
-	return GRPCServer{
-		grpcSrv: grpcSrv,
-		config:  cfg,
-		logger:  logger.With(log.ModuleKey, serverName),
-	}, nil
+	g.grpcSrv = grpcSrv
+	g.config = cfg
+	g.logger = logger.With(log.ModuleKey, serverName)
+
+	return nil
 }
 
-func (g GRPCServer) Name() string {
+func (g *GRPCServer) Name() string {
 	return serverName
 }
 
-func (g GRPCServer) Start(ctx context.Context) error {
+func (g *GRPCServer) Start(ctx context.Context) error {
 	listener, err := net.Listen("tcp", g.config.Address)
 	if err != nil {
 		return fmt.Errorf("failed to listen on address %s: %w", g.config.Address, err)
@@ -95,14 +95,14 @@ func (g GRPCServer) Start(ctx context.Context) error {
 	return err
 }
 
-func (g GRPCServer) Stop(ctx context.Context) error {
+func (g *GRPCServer) Stop(ctx context.Context) error {
 	g.logger.Info("stopping gRPC server...", "address", g.config.Address)
 	g.grpcSrv.GracefulStop()
 
 	return nil
 }
 
-func (g GRPCServer) Config() any {
+func (g *GRPCServer) Config() any {
 	if g.config == nil || g.config == (&Config{}) {
 		return DefaultConfig()
 	}