feat(grant): add restore grant API

Makefile

@@ -3,7 +3,7 @@ COMMIT := $(shell git rev-parse --short HEAD)
 TAG := "$(shell git rev-list --tags --max-count=1)"
 VERSION := "$(shell git describe --tags ${TAG})-next"
 BUILD_DIR=dist
-PROTON_COMMIT := "1c64ba440874a73eddba40c77c79ff30a11347de"
+PROTON_COMMIT := "d30147a7ca98e51e3d0da2a6379f0db09e22ebfb"
 
 .PHONY: all build clean test tidy vet proto setup format generate
 

api/handler/v1beta1/grant.go

@@ -177,6 +177,22 @@ func (s *GRPCServer) RevokeGrants(ctx context.Context, req *guardianv1beta1.Revo
 	}, nil
 }
 
+func (s *GRPCServer) RestoreGrant(ctx context.Context, req *guardianv1beta1.RestoreGrantRequest) (*guardianv1beta1.RestoreGrantResponse, error) {
+	g, err := s.grantService.Restore(ctx, req.GetId())
+	if err != nil {
+		return nil, s.internalError(ctx, "failed to restore grant: %v", err)
+	}
+
+	grantProto, err := s.adapter.ToGrantProto(g)
+	if err != nil {
+		return nil, s.internalError(ctx, "failed to parse grant: %v", err)
+	}
+
+	return &guardianv1beta1.RestoreGrantResponse{
+		Grant: grantProto,
+	}, nil
+}
+
 func (s *GRPCServer) listGrants(ctx context.Context, filter domain.ListGrantsFilter) ([]*guardianv1beta1.Grant, int64, error) {
 	eg, ctx := errgroup.WithContext(ctx)
 	var grants []domain.Grant

api/handler/v1beta1/grpc.go

@@ -111,6 +111,7 @@ type grantService interface {
 	List(context.Context, domain.ListGrantsFilter) ([]domain.Grant, error)
 	GetByID(context.Context, string) (*domain.Grant, error)
 	Update(context.Context, *domain.Grant) error
+	Restore(ctx context.Context, id string) (*domain.Grant, error)
 	Revoke(ctx context.Context, id, actor, reason string, opts ...grant.Option) (*domain.Grant, error)
 	BulkRevoke(ctx context.Context, filter domain.RevokeGrantsFilter, actor, reason string) ([]*domain.Grant, error)
 	ImportFromProvider(ctx context.Context, criteria grant.ImportFromProviderCriteria) ([]*domain.Grant, error)