cmd/backoffice/fileserver.go

@@ -18,7 +18,7 @@ import (
 
 	"git.k6n.net/go-cart-actor/pkg/actor"
 	"git.k6n.net/go-cart-actor/pkg/cart"
-	"github.com/gogo/protobuf/proto"
+	"google.golang.org/protobuf/proto"
 )
 
 type FileServer struct {

cmd/cart/pool-server.go

@@ -19,12 +19,12 @@ import (
 	"github.com/adyen/adyen-go-api-library/v14/src/adyen"
 	"github.com/adyen/adyen-go-api-library/v14/src/hmacvalidator"
 	"github.com/adyen/adyen-go-api-library/v14/src/webhook"
-	"github.com/gogo/protobuf/proto"
 	"github.com/matst80/go-redis-inventory/pkg/inventory"
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/client_golang/prometheus/promauto"
 	"go.opentelemetry.io/contrib/bridges/otelslog"
 	"go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp"
+	"google.golang.org/protobuf/proto"
 	"google.golang.org/protobuf/types/known/anypb"
 
 	"go.opentelemetry.io/otel"

pkg/actor/disk_storage.go

@@ -10,7 +10,7 @@ import (
 	"sync"
 	"time"
 
-	"github.com/gogo/protobuf/proto"
+	"google.golang.org/protobuf/proto"
 )
 
 type QueueEvent struct {

pkg/actor/grain_pool.go

@@ -4,7 +4,7 @@ import (
 	"context"
 	"net/http"
 
-	"github.com/gogo/protobuf/proto"
+	"google.golang.org/protobuf/proto"
 )
 
 type MutationResult[V any] struct {

pkg/actor/grpc_server.go

@@ -8,13 +8,13 @@ import (
 	"time"
 
 	messages "git.k6n.net/go-cart-actor/pkg/messages"
-	"github.com/gogo/protobuf/proto"
 	"go.opentelemetry.io/contrib/bridges/otelslog"
 	"go.opentelemetry.io/otel"
 	"go.opentelemetry.io/otel/attribute"
 	"go.opentelemetry.io/otel/metric"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/reflection"
+	"google.golang.org/protobuf/proto"
 )
 
 // ControlServer implements the ControlPlane gRPC services.
@@ -142,56 +142,10 @@ func (s *ControlServer[V]) Ping(ctx context.Context, _ *messages.Empty) (*messag
 
 func (s *ControlServer[V]) Apply(ctx context.Context, in *messages.ApplyRequest) (*messages.ApplyResult, error) {
 	msgs := make([]proto.Message, len(in.Messages))
-	for i, mut := range in.Messages {
+	for i, anyMsg := range in.Messages {
-		var msg proto.Message
+		msg, err := anyMsg.UnmarshalNew()
-		if m := mut.GetClearCart(); m != nil {
+		if err != nil {
-			msg = m
+			return &messages.ApplyResult{Accepted: false}, fmt.Errorf("failed to unmarshal message: %w", err)
-		} else if m := mut.GetAddItem(); m != nil {
-			msg = m
-		} else if m := mut.GetRemoveItem(); m != nil {
-			msg = m
-		} else if m := mut.GetChangeQuantity(); m != nil {
-			msg = m
-		} else if m := mut.GetSetDelivery(); m != nil {
-			msg = m
-		} else if m := mut.GetSetPickupPoint(); m != nil {
-			msg = m
-		} else if m := mut.GetRemoveDelivery(); m != nil {
-			msg = m
-		} else if m := mut.GetSetUserId(); m != nil {
-			msg = m
-		} else if m := mut.GetLineItemMarking(); m != nil {
-			msg = m
-		} else if m := mut.GetRemoveLineItemMarking(); m != nil {
-			msg = m
-		} else if m := mut.GetSubscriptionAdded(); m != nil {
-			msg = m
-		} else if m := mut.GetPaymentDeclined(); m != nil {
-			msg = m
-		} else if m := mut.GetConfirmationViewed(); m != nil {
-			msg = m
-		} else if m := mut.GetCreateCheckoutOrder(); m != nil {
-			msg = m
-		} else if m := mut.GetOrderCreated(); m != nil {
-			msg = m
-		} else if m := mut.GetNoop(); m != nil {
-			msg = m
-		} else if m := mut.GetInitializeCheckout(); m != nil {
-			msg = m
-		} else if m := mut.GetInventoryReserved(); m != nil {
-			msg = m
-		} else if m := mut.GetAddVoucher(); m != nil {
-			msg = m
-		} else if m := mut.GetRemoveVoucher(); m != nil {
-			msg = m
-		} else if m := mut.GetUpsertSubscriptionDetails(); m != nil {
-			msg = m
-		} else if m := mut.GetPreConditionFailed(); m != nil {
-			msg = m
-		} else if m := mut.GetAddGiftcard(); m != nil {
-			msg = m
-		} else if m := mut.GetRemoveGiftcard(); m != nil {
-			msg = m
 		}
 		msgs[i] = msg
 	}

pkg/actor/grpc_server_test.go

@@ -0,0 +1,104 @@
+package actor
+
+import (
+	"context"
+	"testing"
+
+	"git.k6n.net/go-cart-actor/pkg/messages"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials/insecure"
+	"google.golang.org/protobuf/proto"
+	"google.golang.org/protobuf/types/known/anypb"
+)
+
+// MockGrainPool for testing
+type mockGrainPool struct {
+	applied []proto.Message
+}
+
+func (m *mockGrainPool) Apply(ctx context.Context, id uint64, mutations ...proto.Message) (*MutationResult[*mockGrain], error) {
+	m.applied = mutations
+	// Simulate successful application
+	return &MutationResult[*mockGrain]{
+		Result: &mockGrain{},
+		Mutations: []ApplyResult{
+			{Error: nil}, // Assume success
+			{Error: nil},
+		},
+	}, nil
+}
+
+func (m *mockGrainPool) Get(ctx context.Context, id uint64) (*mockGrain, error) {
+	return &mockGrain{}, nil
+}
+
+func (m *mockGrainPool) OwnerHost(id uint64) (Host, bool) {
+	return nil, false
+}
+
+func (m *mockGrainPool) TakeOwnership(id uint64) {}
+
+func (m *mockGrainPool) Hostname() string { return "test-host" }
+
+func (m *mockGrainPool) HandleOwnershipChange(host string, ids []uint64) error { return nil }
+func (m *mockGrainPool) HandleRemoteExpiry(host string, ids []uint64) error    { return nil }
+func (m *mockGrainPool) Negotiate(hosts []string)                              {}
+func (m *mockGrainPool) GetLocalIds() []uint64                                 { return []uint64{} }
+func (m *mockGrainPool) RemoveHost(host string)                                {}
+func (m *mockGrainPool) AddRemoteHost(host string)                             {}
+func (m *mockGrainPool) IsHealthy() bool                                       { return true }
+func (m *mockGrainPool) IsKnown(host string) bool                              { return false }
+func (m *mockGrainPool) Close()                                                {}
+
+type mockGrain struct{}
+
+func TestApplyRequestWithMutations(t *testing.T) {
+	// Setup mock pool
+	pool := &mockGrainPool{}
+
+	// Create gRPC server
+	server, err := NewControlServer[*mockGrain](DefaultServerConfig(), pool)
+	if err != nil {
+		t.Fatalf("failed to create server: %v", err)
+	}
+	defer server.GracefulStop()
+
+	// Create client connection
+	conn, err := grpc.Dial("localhost:1337", grpc.WithTransportCredentials(insecure.NewCredentials()))
+	if err != nil {
+		t.Fatalf("failed to dial: %v", err)
+	}
+	defer conn.Close()
+
+	client := messages.NewControlPlaneClient(conn)
+
+	// Prepare ApplyRequest with multiple Any messages
+	addItemAny, _ := anypb.New(&messages.AddItem{ItemId: 1, Quantity: 2})
+	removeItemAny, _ := anypb.New(&messages.RemoveItem{Id: 1})
+	req := &messages.ApplyRequest{
+		Id:       123,
+		Messages: []*anypb.Any{addItemAny, removeItemAny},
+	}
+
+	// Call Apply
+	resp, err := client.Apply(context.Background(), req)
+	if err != nil {
+		t.Fatalf("Apply failed: %v", err)
+	}
+
+	// Verify response
+	if !resp.Accepted {
+		t.Errorf("expected Accepted=true, got false")
+	}
+
+	// Verify mutations were extracted and applied
+	if len(pool.applied) != 2 {
+		t.Errorf("expected 2 mutations applied, got %d", len(pool.applied))
+	}
+	if addItem, ok := pool.applied[0].(*messages.AddItem); !ok || addItem.ItemId != 1 {
+		t.Errorf("expected AddItem with ItemId=1, got %v", pool.applied[0])
+	}
+	if removeItem, ok := pool.applied[1].(*messages.RemoveItem); !ok || removeItem.Id != 1 {
+		t.Errorf("expected RemoveItem with Id=1, got %v", pool.applied[1])
+	}
+}

pkg/actor/mutation_registry.go

@@ -7,8 +7,8 @@ import (
 	"reflect"
 	"sync"
 
-	"github.com/gogo/protobuf/proto"
 	"go.opentelemetry.io/otel/attribute"
+	"google.golang.org/protobuf/proto"
 )
 
 type ApplyResult struct {

pkg/actor/simple_grain_pool.go

@@ -8,7 +8,7 @@ import (
 	"sync"
 	"time"
 
-	"github.com/gogo/protobuf/proto"
+	"google.golang.org/protobuf/proto"
 )
 
 type SimpleGrainPool[V any] struct {

pkg/actor/state.go

@@ -7,7 +7,7 @@ import (
 	"io"
 	"time"
 
-	"github.com/gogo/protobuf/proto"
+	"google.golang.org/protobuf/proto"
 )
 
 type StateStorage struct {

pkg/cart/mutation_test.go

@@ -10,8 +10,8 @@ import (
 	"testing"
 	"time"
 
-	"github.com/gogo/protobuf/proto"
 	"github.com/matst80/go-redis-inventory/pkg/inventory"
+	"google.golang.org/protobuf/proto"
 	"google.golang.org/protobuf/types/known/anypb"
 
 	"git.k6n.net/go-cart-actor/pkg/actor"

pkg/messages/control_plane.pb.go

@@ -9,6 +9,7 @@ package messages
 import (
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	anypb "google.golang.org/protobuf/types/known/anypb"
 	reflect "reflect"
 	sync "sync"
 	unsafe "unsafe"
@@ -454,7 +455,7 @@ func (x *ExpiryAnnounce) GetIds() []uint64 {
 type ApplyRequest struct {
 	state         protoimpl.MessageState `protogen:"open.v1"`
 	Id            uint64                 `protobuf:"varint,1,opt,name=id,proto3" json:"id,omitempty"`
-	Messages      []*Mutation            `protobuf:"bytes,2,rep,name=messages,proto3" json:"messages,omitempty"`
+	Messages      []*anypb.Any           `protobuf:"bytes,2,rep,name=messages,proto3" json:"messages,omitempty"`
 	unknownFields protoimpl.UnknownFields
 	sizeCache     protoimpl.SizeCache
 }
@@ -496,7 +497,7 @@ func (x *ApplyRequest) GetId() uint64 {
 	return 0
 }
 
-func (x *ApplyRequest) GetMessages() []*Mutation {
+func (x *ApplyRequest) GetMessages() []*anypb.Any {
 	if x != nil {
 		return x.Messages
 	}
@@ -552,73 +553,75 @@ var File_control_plane_proto protoreflect.FileDescriptor
 var file_control_plane_proto_rawDesc = string([]byte{
 	0x0a, 0x13, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x6f, 0x6c, 0x5f, 0x70, 0x6c, 0x61, 0x6e, 0x65, 0x2e,
 	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x08, 0x6d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x73, 0x1a,
-	0x0e, 0x6d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x73, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22,
+	0x0e, 0x6d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x73, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x1a,
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+	0x19, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66,
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+	0x65, 0x73, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 })
 
 var (
@@ -646,10 +649,10 @@ var file_control_plane_proto_goTypes = []any{
 	(*ExpiryAnnounce)(nil),    // 8: messages.ExpiryAnnounce
 	(*ApplyRequest)(nil),      // 9: messages.ApplyRequest
 	(*ApplyResult)(nil),       // 10: messages.ApplyResult
-	(*Mutation)(nil),          // 11: messages.Mutation
+	(*anypb.Any)(nil),         // 11: google.protobuf.Any
 }
 var file_control_plane_proto_depIdxs = []int32{
-	11, // 0: messages.ApplyRequest.messages:type_name -> messages.Mutation
+	11, // 0: messages.ApplyRequest.messages:type_name -> google.protobuf.Any
 	0,  // 1: messages.ControlPlane.Ping:input_type -> messages.Empty
 	2,  // 2: messages.ControlPlane.Negotiate:input_type -> messages.NegotiateRequest
 	0,  // 3: messages.ControlPlane.GetLocalActorIds:input_type -> messages.Empty

pkg/proxy/remotehost.go

@@ -9,13 +9,14 @@ import (
 	"net/http"
 	"time"
 
-	messages "git.k6n.net/go-cart-actor/pkg/messages"
+	"git.k6n.net/go-cart-actor/pkg/messages"
-	"github.com/gogo/protobuf/proto"
 	"go.opentelemetry.io/contrib/bridges/otelslog"
 	"go.opentelemetry.io/otel"
 	"go.opentelemetry.io/otel/attribute"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/credentials/insecure"
+	"google.golang.org/protobuf/proto"
+	"google.golang.org/protobuf/types/known/anypb"
 )
 
 // RemoteHost mirrors the lightweight controller used for remote node
@@ -105,60 +106,13 @@ func (h *RemoteHost) Apply(ctx context.Context, id uint64, mutation ...proto.Mes
 	ctx, cancel := context.WithTimeout(ctx, 5*time.Second)
 	defer cancel()
 
-	toSend := make([]*messages.Mutation, len(mutation))
+	toSend := make([]*anypb.Any, len(mutation))
 	for i, msg := range mutation {
-		switch m := msg.(type) {
+		anyMsg, err := anypb.New(msg)
-		case *messages.ClearCartRequest:
+		if err != nil {
-			toSend[i] = &messages.Mutation{Type: &messages.Mutation_ClearCart{ClearCart: m}}
+			return false, fmt.Errorf("failed to pack message: %w", err)
-		case *messages.AddItem:
-			toSend[i] = &messages.Mutation{Type: &messages.Mutation_AddItem{AddItem: m}}
-		case *messages.RemoveItem:
-			toSend[i] = &messages.Mutation{Type: &messages.Mutation_RemoveItem{RemoveItem: m}}
-		case *messages.ChangeQuantity:
-			toSend[i] = &messages.Mutation{Type: &messages.Mutation_ChangeQuantity{ChangeQuantity: m}}
-		case *messages.SetDelivery:
-			toSend[i] = &messages.Mutation{Type: &messages.Mutation_SetDelivery{SetDelivery: m}}
-		case *messages.SetPickupPoint:
-			toSend[i] = &messages.Mutation{Type: &messages.Mutation_SetPickupPoint{SetPickupPoint: m}}
-		case *messages.RemoveDelivery:
-			toSend[i] = &messages.Mutation{Type: &messages.Mutation_RemoveDelivery{RemoveDelivery: m}}
-		case *messages.SetUserId:
-			toSend[i] = &messages.Mutation{Type: &messages.Mutation_SetUserId{SetUserId: m}}
-		case *messages.LineItemMarking:
-			toSend[i] = &messages.Mutation{Type: &messages.Mutation_LineItemMarking{LineItemMarking: m}}
-		case *messages.RemoveLineItemMarking:
-			toSend[i] = &messages.Mutation{Type: &messages.Mutation_RemoveLineItemMarking{RemoveLineItemMarking: m}}
-		case *messages.SubscriptionAdded:
-			toSend[i] = &messages.Mutation{Type: &messages.Mutation_SubscriptionAdded{SubscriptionAdded: m}}
-		case *messages.PaymentDeclined:
-			toSend[i] = &messages.Mutation{Type: &messages.Mutation_PaymentDeclined{PaymentDeclined: m}}
-		case *messages.ConfirmationViewed:
-			toSend[i] = &messages.Mutation{Type: &messages.Mutation_ConfirmationViewed{ConfirmationViewed: m}}
-		case *messages.CreateCheckoutOrder:
-			toSend[i] = &messages.Mutation{Type: &messages.Mutation_CreateCheckoutOrder{CreateCheckoutOrder: m}}
-		case *messages.OrderCreated:
-			toSend[i] = &messages.Mutation{Type: &messages.Mutation_OrderCreated{OrderCreated: m}}
-		case *messages.Noop:
-			toSend[i] = &messages.Mutation{Type: &messages.Mutation_Noop{Noop: m}}
-		case *messages.InitializeCheckout:
-			toSend[i] = &messages.Mutation{Type: &messages.Mutation_InitializeCheckout{InitializeCheckout: m}}
-		case *messages.InventoryReserved:
-			toSend[i] = &messages.Mutation{Type: &messages.Mutation_InventoryReserved{InventoryReserved: m}}
-		case *messages.AddVoucher:
-			toSend[i] = &messages.Mutation{Type: &messages.Mutation_AddVoucher{AddVoucher: m}}
-		case *messages.RemoveVoucher:
-			toSend[i] = &messages.Mutation{Type: &messages.Mutation_RemoveVoucher{RemoveVoucher: m}}
-		case *messages.UpsertSubscriptionDetails:
-			toSend[i] = &messages.Mutation{Type: &messages.Mutation_UpsertSubscriptionDetails{UpsertSubscriptionDetails: m}}
-		case *messages.PreConditionFailed:
-			toSend[i] = &messages.Mutation{Type: &messages.Mutation_PreConditionFailed{PreConditionFailed: m}}
-		case *messages.AddGiftcard:
-			toSend[i] = &messages.Mutation{Type: &messages.Mutation_AddGiftcard{AddGiftcard: m}}
-		case *messages.RemoveGiftcard:
-			toSend[i] = &messages.Mutation{Type: &messages.Mutation_RemoveGiftcard{RemoveGiftcard: m}}
-		default:
-			toSend[i] = nil
 		}
+		toSend[i] = anyMsg
 	}
 
 	resp, err := h.controlClient.Apply(ctx, &messages.ApplyRequest{

proto/control_plane.proto

@@ -5,6 +5,7 @@ package messages;
 option go_package = "git.k6n.net/go-cart-actor/proto;messages";
 
 import "messages.proto";
+import "google/protobuf/any.proto";
 
 // -----------------------------------------------------------------------------
 // Control Plane gRPC API
@@ -70,7 +71,7 @@ message ExpiryAnnounce {
 message ApplyRequest {
 
     uint64 id = 1;
-    repeated Mutation messages = 2;
+    repeated google.protobuf.Any messages = 2;
 }
 
 message ApplyResult {