Return finalAmount as a string with 0 decimal places (rounded)

handlers/application/menuhandler.go

@@ -1861,8 +1861,11 @@ func (h *MenuHandlers) ValidateAmount(ctx context.Context, sym string, input []b
 		return res, nil
 	}
 
-	// Format the amount with 2 decimal places before saving
-	formattedAmount := fmt.Sprintf("%.2f", inputAmount)
+	// Format the amount to 2 decimal places before saving (truncated)
+	cents := int((inputAmount + 1e-9) * 100)
+	truncated := float64(cents) / 100
+	formattedAmount := fmt.Sprintf("%.2f", truncated)
+
 	err = store.WriteEntry(ctx, sessionId, storedb.DATA_AMOUNT, []byte(formattedAmount))
 	if err != nil {
 		logg.ErrorCtxf(ctx, "failed to write amount entry with", "key", storedb.DATA_AMOUNT, "value", formattedAmount, "error", err)

handlers/application/menuhandler_test.go

@@ -1678,6 +1678,14 @@ func TestValidateAmount(t *testing.T) {
 				Content: "0.02ms",
 			},
 		},
+		{
+			name:      "Test with valid decimal amount",
+			input:     []byte("0.149"),
+			activeBal: []byte("5"),
+			expectedResult: resource.Result{
+				Content: "0.14",
+			},
+		},
 	}
 
 	for _, tt := range tests {

store/tokens.go

@@ -38,11 +38,8 @@ func ParseAndScaleAmount(storedAmount, activeDecimal string) (string, error) {
 	multiplier := new(big.Float).SetInt(new(big.Int).Exp(big.NewInt(10), big.NewInt(int64(tokenDecimal)), nil))
 	finalAmount := new(big.Float).Mul(amount, multiplier)
 
-	// Convert finalAmount to a string
-	finalAmountStr := new(big.Int)
-	finalAmount.Int(finalAmountStr)
-
-	return finalAmountStr.String(), nil
+	// Return finalAmount as a string with 0 decimal places (rounded)
+	return finalAmount.Text('f', 0), nil
 }
 
 func ReadTransactionData(ctx context.Context, store DataStore, sessionId string) (TransactionData, error) {