fixed operations idempotency

api/gateway/mntx/storage/mongo/store/payouts.go

@@ -19,6 +19,7 @@ const (
 	payoutsCollection = "card_payouts"
 	payoutIdemField   = "idempotencyKey"
 	payoutIdField     = "paymentRef"
+	payoutOpField     = "operationRef"
 )
 
 type Payouts struct {
@@ -36,6 +37,16 @@ func NewPayouts(logger mlogger.Logger, db *mongo.Database) (*Payouts, error) {
 	logger = logger.Named("payouts").With(zap.String("collection", payoutsCollection))
 
 	repo := repository.CreateMongoRepository(db, payoutsCollection)
+	if err := repo.CreateIndex(&ri.Definition{
+		Keys:   []ri.Key{{Field: payoutOpField, Sort: ri.Asc}},
+		Unique: true,
+		Sparse: true,
+	}); err != nil {
+		logger.Error("Failed to create payouts operation index",
+			zap.Error(err),
+			zap.String("index_field", payoutOpField))
+		return nil, err
+	}
 	if err := repo.CreateIndex(&ri.Definition{
 		Keys:   []ri.Key{{Field: payoutIdemField, Sort: ri.Asc}},
 		Unique: true,
@@ -63,6 +74,10 @@ func (p *Payouts) FindByIdempotencyKey(ctx context.Context, key string) (*model.
 	return p.findOneByField(ctx, payoutIdemField, key)
 }
 
+func (p *Payouts) FindByOperationRef(ctx context.Context, operationRef string) (*model.CardPayout, error) {
+	return p.findOneByField(ctx, payoutOpField, operationRef)
+}
+
 func (p *Payouts) FindByPaymentID(ctx context.Context, paymentID string) (*model.CardPayout, error) {
 	return p.findOneByField(ctx, payoutIdField, paymentID)
 }