Extract method CreateTransferForOtherAccount

server/transaction.go

@@ -49,18 +49,11 @@ func (h *Handler) newTransaction(c *gin.Context) {
 	}
 
 	if payload.Payee.IsAccount {
-		newTransaction.GroupID = uuid.NullUUID{UUID: uuid.New(), Valid: true}
+		err := h.CreateTransferForOtherAccount(newTransaction, amount, payload, err, c)
-		newTransaction.Amount = amount.Neg()
-		newTransaction.AccountID = payload.Payee.ID.UUID
-		newTransaction.CategoryID = uuid.NullUUID{}
-
-		_, err = h.Service.CreateTransaction(c.Request.Context(), newTransaction)
 		if err != nil {
 			c.AbortWithError(http.StatusInternalServerError, fmt.Errorf("create transfer transaction: %w", err))
 			return
 		}
-
-		newTransaction.Amount = amount
 	} else {
 		payeeID, err := GetPayeeID(c.Request.Context(), payload, h)
 		if err != nil {
@@ -80,6 +73,15 @@ func (h *Handler) newTransaction(c *gin.Context) {
 	c.JSON(http.StatusOK, transaction)
 }
 
+func (h *Handler) CreateTransferForOtherAccount(newTransaction postgres.CreateTransactionParams, amount numeric.Numeric, payload NewTransactionPayload, err error, c *gin.Context) error {
+	newTransaction.GroupID = uuid.NullUUID{UUID: uuid.New(), Valid: true}
+	newTransaction.Amount = amount.Neg()
+	newTransaction.AccountID = payload.Payee.ID.UUID
+
+	_, err = h.Service.CreateTransaction(c.Request.Context(), newTransaction)
+	return err
+}
+
 func GetPayeeID(context context.Context, payload NewTransactionPayload, h *Handler) (uuid.NullUUID, error) {
 	payeeID := payload.Payee.ID
 	if payeeID.Valid {