diff --git a/internal/server/grpc.go b/internal/server/grpc.go
index 2b393ed..863f73f 100644
--- a/internal/server/grpc.go
+++ b/internal/server/grpc.go
@@ -2,6 +2,7 @@ package server
 
 import (
 	"context"
+	"io"
 
 	"github.com/arcana261/ubroker/pkg/ubroker"
 	"github.com/golang/protobuf/ptypes/empty"
@@ -18,19 +19,62 @@ func NewGRPC(broker ubroker.Broker) ubroker.BrokerServer {
 		broker: broker,
 	}
 }
-
 func (s *grpcServicer) Fetch(stream ubroker.Broker_FetchServer) error {
-	return status.Error(codes.Unimplemented, "not implemented")
+	delivery, err := s.broker.Delivery(stream.Context())
+	if err != nil {
+		return ReturnError(err)
+	}
+	for {
+		_, err := stream.Recv()
+		if err == io.EOF {
+			return nil
+		}
+		if err != nil {
+			println("heeeeeeeeeeeeeeeeeeeeeer!")
+			return ReturnError(err)
+		}
+		delivered := <-delivery
+		if delivered == nil {
+			return status.Error(codes.Unavailable, "Unavailable")
+		}
+		err = stream.Send(delivered)
+		if err != nil {
+			return ReturnError(err)
+		}
+	}
+	//return status.Error(codes.OK, "OK")
 }
 
 func (s *grpcServicer) Acknowledge(ctx context.Context, request *ubroker.AcknowledgeRequest) (*empty.Empty, error) {
-	return &empty.Empty{}, status.Error(codes.Unimplemented, "not implemented")
+	err := s.broker.Acknowledge(ctx, request.Id)
+	if err != nil {
+		return &empty.Empty{}, ReturnError(err)
+	}
+	return &empty.Empty{}, status.Error(codes.OK, "OK")
 }
 
 func (s *grpcServicer) ReQueue(ctx context.Context, request *ubroker.ReQueueRequest) (*empty.Empty, error) {
-	return &empty.Empty{}, status.Error(codes.Unimplemented, "not implemented")
+	err := s.broker.ReQueue(ctx, request.Id)
+	if err != nil {
+		return &empty.Empty{}, ReturnError(err)
+	}
+	return &empty.Empty{}, status.Error(codes.OK, "OK")
 }
 
 func (s *grpcServicer) Publish(ctx context.Context, request *ubroker.Message) (*empty.Empty, error) {
-	return &empty.Empty{}, status.Error(codes.Unimplemented, "not implemented")
+	err := s.broker.Publish(ctx, request)
+	if err != nil {
+		return &empty.Empty{}, ReturnError(err)
+	}
+	return &empty.Empty{}, status.Error(codes.OK, "OK")
 }
+func ReturnError(err error) error {
+	if err == ubroker.ErrClosed {
+		return status.Error(codes.Unavailable, "Unavailable")
+	}
+	if err == ubroker.ErrInvalidID {
+		return status.Error(codes.InvalidArgument, "InvalidID")
+	}
+	return nil
+}
+
diff --git a/pkg/ubroker/errors.go b/pkg/ubroker/errors.go
index 8e73291..903fa7d 100644
--- a/pkg/ubroker/errors.go
+++ b/pkg/ubroker/errors.go
@@ -16,4 +16,4 @@ var (
 	// servicer has been shutted-down and a new request
 	// rolls in
 	ErrClosed = errors.New("closed")
-)
+)
\ No newline at end of file