go.mod

@@ -5,7 +5,7 @@ go 1.23.4
 require (
 	git.defalsify.org/vise.git v0.3.2-0.20250528124150-03bf7bfc1b66
 	git.grassecon.net/grassrootseconomics/common v0.9.0-beta.1.0.20250417111317-2953f4c2f32e
-	git.grassecon.net/grassrootseconomics/sarafu-api v0.9.0-beta.1.0.20251006090242-8d4fbb9c2ef4
+	git.grassecon.net/grassrootseconomics/sarafu-api v0.9.0-beta.1.0.20250630214912-814bef2b209a
 	git.grassecon.net/grassrootseconomics/visedriver v0.9.0-beta.2.0.20250408094335-e2d1f65bb306
 	git.grassecon.net/grassrootseconomics/visedriver-africastalking v0.0.0-20250129070628-5a539172c694
 	github.com/alecthomas/assert/v2 v2.2.2

go.sum

@@ -20,10 +20,6 @@ git.grassecon.net/grassrootseconomics/sarafu-api v0.9.0-beta.1.0.20250630213606-
 git.grassecon.net/grassrootseconomics/sarafu-api v0.9.0-beta.1.0.20250630213606-12940bb5f284/go.mod h1:y/vsN8UO0wSxZk3gv0y5df4RPKMJI6TIxjVcVCPF8T8=
 git.grassecon.net/grassrootseconomics/sarafu-api v0.9.0-beta.1.0.20250630214912-814bef2b209a h1:KuhJ/WY4RCGmrXUA680ciaponM4vM5zBOJfnCpUo2fc=
 git.grassecon.net/grassrootseconomics/sarafu-api v0.9.0-beta.1.0.20250630214912-814bef2b209a/go.mod h1:y/vsN8UO0wSxZk3gv0y5df4RPKMJI6TIxjVcVCPF8T8=
-git.grassecon.net/grassrootseconomics/sarafu-api v0.9.0-beta.1.0.20251006084325-61410b2b294e h1:RlKXekj4O0+cLWLitY+aLBo3WVwUslCkrTbU2q/FZYQ=
-git.grassecon.net/grassrootseconomics/sarafu-api v0.9.0-beta.1.0.20251006084325-61410b2b294e/go.mod h1:y/vsN8UO0wSxZk3gv0y5df4RPKMJI6TIxjVcVCPF8T8=
-git.grassecon.net/grassrootseconomics/sarafu-api v0.9.0-beta.1.0.20251006090242-8d4fbb9c2ef4 h1:ONW+0eXvkuBojaKaqg8WZBYSW2ZXdIE9A1jaPTUI7Y8=
-git.grassecon.net/grassrootseconomics/sarafu-api v0.9.0-beta.1.0.20251006090242-8d4fbb9c2ef4/go.mod h1:y/vsN8UO0wSxZk3gv0y5df4RPKMJI6TIxjVcVCPF8T8=
 git.grassecon.net/grassrootseconomics/visedriver v0.9.0-beta.2.0.20250408094335-e2d1f65bb306 h1:Jo+yWysWw/N5BJQtAyEMN8ePVvAyPHv+JG4lQti+1N4=
 git.grassecon.net/grassrootseconomics/visedriver v0.9.0-beta.2.0.20250408094335-e2d1f65bb306/go.mod h1:FdLwYtzsjOIcDiW4uDgDYnB4Wdzq12uJUe0QHSSPbSo=
 git.grassecon.net/grassrootseconomics/visedriver-africastalking v0.0.0-20250129070628-5a539172c694 h1:DjJlBSz0S13acft5XZDWk7ZYnzElym0xLMYEVgyNJ+E=

handlers/application/vouchers.go

@@ -289,8 +289,11 @@ func (h *MenuHandlers) GetVoucherDetails(ctx context.Context, sym string, input
 	}
 	res.FlagReset = append(res.FlagReset, flag_api_error)
 
+	// sanitize invalid characters
+	symbol := strings.ReplaceAll(voucherData.TokenSymbol, "USD₮", "USDT")
+
 	res.Content = fmt.Sprintf(
-		"Name: %s\nSymbol: %s\nProduct: %s\nLocation: %s", voucherData.TokenName, voucherData.TokenSymbol, voucherData.TokenCommodity, voucherData.TokenLocation,
+		"Name: %s\nSymbol: %s\nProduct: %s\nLocation: %s", voucherData.TokenName, symbol, voucherData.TokenCommodity, voucherData.TokenLocation,
 	)
 
 	return res, nil

store/vouchers.go

@@ -15,6 +15,11 @@ var (
 	logg = logging.NewVanilla().WithDomain("vouchers").WithContextKey("SessionId")
 )
 
+// symbolReplacements holds mappings of invalid symbols → valid ones
+var symbolReplacements = map[string]string{
+	"USD₮": "USDT",
+}
+
 // VoucherMetadata helps organize data fields
 type VoucherMetadata struct {
 	Symbols   string
@@ -23,13 +28,24 @@ type VoucherMetadata struct {
 	Addresses string
 }
 
+// sanitizeSymbol replaces known invalid token symbols with normalized ones
+func sanitizeSymbol(symbol string) string {
+	if replacement, ok := symbolReplacements[symbol]; ok {
+		return replacement
+	}
+	return symbol
+}
+
 // ProcessVouchers converts holdings into formatted strings
 func ProcessVouchers(holdings []dataserviceapi.TokenHoldings) VoucherMetadata {
 	var data VoucherMetadata
 	var symbols, balances, decimals, addresses []string
 
 	for i, h := range holdings {
-		symbols = append(symbols, fmt.Sprintf("%d:%s", i+1, h.TokenSymbol))
+		// normalize token symbol before use
+		cleanSymbol := sanitizeSymbol(h.TokenSymbol)
+
+		symbols = append(symbols, fmt.Sprintf("%d:%s", i+1, cleanSymbol))
 
 		// Scale down the balance
 		scaledBalance := ScaleDownBalance(h.Balance, h.TokenDecimals)

store/vouchers_test.go

@@ -61,13 +61,14 @@ func TestProcessVouchers(t *testing.T) {
 	holdings := []dataserviceapi.TokenHoldings{
 		{TokenAddress: "0xd4c288865Ce", TokenSymbol: "SRF", TokenDecimals: "6", Balance: "100000000"},
 		{TokenAddress: "0x41c188d63Qa", TokenSymbol: "MILO", TokenDecimals: "4", Balance: "200000000"},
+		{TokenAddress: "0x41c143d63Qa", TokenSymbol: "USD₮", TokenDecimals: "6", Balance: "300000000"},
 	}
 
 	expectedResult := VoucherMetadata{
-		Symbols:   "1:SRF\n2:MILO",
+		Symbols:   "1:SRF\n2:MILO\n3:USDT",
-		Balances:  "1:100\n2:20000",
+		Balances:  "1:100\n2:20000\n3:300",
-		Decimals:  "1:6\n2:4",
+		Decimals:  "1:6\n2:4\n3:6",
-		Addresses: "1:0xd4c288865Ce\n2:0x41c188d63Qa",
+		Addresses: "1:0xd4c288865Ce\n2:0x41c188d63Qa\n3:0x41c143d63Qa",
 	}
 
 	result := ProcessVouchers(holdings)