Improve Backend

server/account.go

@@ -30,10 +30,13 @@ func (h *Handler) filteredTransactions(c *gin.Context) {
 	}
 
 	params := postgres.GetFilteredTransactionsParams{
-		BudgetID:       budgetUUID,
-		CategoryID:     uuid.NullUUID{},
-		FilterCategory: true,
+		BudgetID: budgetUUID,
 	}
+	params.CategoryID, params.FilterCategory = parseEmptyUUID(request.CategoryID)
+	accountID, filterAccount := parseEmptyUUID(request.AccountID)
+	params.AccountID, params.FilterAccount = accountID.UUID, filterAccount
+	params.PayeeID, params.FilterPayee = parseEmptyUUID(request.PayeeID)
+
 	transactions, err := h.Service.GetFilteredTransactions(c.Request.Context(), params)
 	if err != nil {
 		c.AbortWithError(http.StatusInternalServerError, err)
@@ -43,6 +46,19 @@ func (h *Handler) filteredTransactions(c *gin.Context) {
 	c.JSON(http.StatusOK, TransactionsResponse{nil, transactions})
 }
 
+func parseEmptyUUID(value string) (uuid.NullUUID, bool) {
+	if value == "" {
+		return uuid.NullUUID{}, false
+	}
+
+	val, err := uuid.Parse(value)
+	if err != nil {
+		return uuid.NullUUID{}, false
+	}
+
+	return uuid.NullUUID{val, true}, true
+}
+
 func (h *Handler) problematicTransactions(c *gin.Context) {
 	budgetID := c.Param("budgetid")
 	budgetUUID, err := uuid.Parse(budgetID)