Merge branch 'master' into alfred/pool-swap

go.mod

@@ -5,12 +5,12 @@ go 1.23.4
 require (
 	git.defalsify.org/vise.git v0.3.2-0.20250507172020-cb22240f1cb9
 	git.grassecon.net/grassrootseconomics/common v0.9.0-beta.1.0.20250417111317-2953f4c2f32e
-	git.grassecon.net/grassrootseconomics/sarafu-api v0.9.0-beta.1.0.20250428082711-5d221b8d565f
+	git.grassecon.net/grassrootseconomics/sarafu-api v0.9.0-beta.1.0.20250517114512-050998ff82b1
 	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
 	github.com/gofrs/uuid v4.4.0+incompatible
-	github.com/grassrootseconomics/ussd-data-service v1.2.0-beta
+	github.com/grassrootseconomics/ussd-data-service v1.4.4-beta
 	github.com/jackc/pgx/v5 v5.7.1
 	github.com/peteole/testdata-loader v0.3.0
 	github.com/stretchr/testify v1.9.0

go.sum

@@ -6,6 +6,12 @@ git.grassecon.net/grassrootseconomics/common v0.9.0-beta.1.0.20250417111317-2953
 git.grassecon.net/grassrootseconomics/common v0.9.0-beta.1.0.20250417111317-2953f4c2f32e/go.mod h1:wgQJZGIS6QuNLHqDhcsvehsbn5PvgV7aziRebMnJi60=
 git.grassecon.net/grassrootseconomics/sarafu-api v0.9.0-beta.1.0.20250428082711-5d221b8d565f h1:OAHCP3YR1C5h1WFnnEnLs5kn6jTxQHQYWYtQaMZJIMY=
 git.grassecon.net/grassrootseconomics/sarafu-api v0.9.0-beta.1.0.20250428082711-5d221b8d565f/go.mod h1:gOn89ipaDcDvmQXRMQYKUqcw/sJcwVOPVt2eC6Geip8=
+git.grassecon.net/grassrootseconomics/sarafu-api v0.9.0-beta.1.0.20250516094326-3b85167ad84a h1:QNh0NaKtGbSeRPlTVKEAnqc0R5rnVrpDMrCHD/EaU5U=
+git.grassecon.net/grassrootseconomics/sarafu-api v0.9.0-beta.1.0.20250516094326-3b85167ad84a/go.mod h1:K/TPgZ4OhPHBQq2X0ab3JZs4YjiexzSURZcfHLs9Pf4=
+git.grassecon.net/grassrootseconomics/sarafu-api v0.9.0-beta.1.0.20250517113706-ee434dba6980 h1:FQUwTDFWduY7gCMi1U2OiFlsuAHLojWUw2hvZ4cGC2s=
+git.grassecon.net/grassrootseconomics/sarafu-api v0.9.0-beta.1.0.20250517113706-ee434dba6980/go.mod h1:K/TPgZ4OhPHBQq2X0ab3JZs4YjiexzSURZcfHLs9Pf4=
+git.grassecon.net/grassrootseconomics/sarafu-api v0.9.0-beta.1.0.20250517114512-050998ff82b1 h1:0hvILlGkZnXO8o7nZth4xu77vAS4zVQ6Ae0rb5x/Idg=
+git.grassecon.net/grassrootseconomics/sarafu-api v0.9.0-beta.1.0.20250517114512-050998ff82b1/go.mod h1:K/TPgZ4OhPHBQq2X0ab3JZs4YjiexzSURZcfHLs9Pf4=
 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=
@@ -64,6 +70,10 @@ github.com/grassrootseconomics/ethutils v1.3.1 h1:LlQO90HjJkl7ejC8fv6jP7RJUrAm1j
 github.com/grassrootseconomics/ethutils v1.3.1/go.mod h1:Wuv1VEZrkLIXqTSEYI3Nh9HG/ZHOUQ+U+xvWJ8QtjgQ=
 github.com/grassrootseconomics/ussd-data-service v1.2.0-beta h1:fn1gwbWIwHVEBtUC2zi5OqTlfI/5gU1SMk0fgGixIXk=
 github.com/grassrootseconomics/ussd-data-service v1.2.0-beta/go.mod h1:omfI0QtUwIdpu9gMcUqLMCG8O1XWjqJGBx1qUMiGWC0=
+github.com/grassrootseconomics/ussd-data-service v1.4.0-beta h1:4fMd/3h2ZIhRg4GdHQmRw5FfD3MpJvFNNJQo+Q27f5M=
+github.com/grassrootseconomics/ussd-data-service v1.4.0-beta/go.mod h1:9sGnorpKaK76FmOGXoh/xv7x5siSFNYdXxQo9BKW4DI=
+github.com/grassrootseconomics/ussd-data-service v1.4.4-beta h1:turlyo0i3OLj29mWpWNoB/3Qao8qEngT/5d1jDWTZE4=
+github.com/grassrootseconomics/ussd-data-service v1.4.4-beta/go.mod h1:9sGnorpKaK76FmOGXoh/xv7x5siSFNYdXxQo9BKW4DI=
 github.com/graygnuorg/go-gdbm v0.0.0-20220711140707-71387d66dce4 h1:U4kkNYryi/qfbBF8gh7Vsbuz+cVmhf5kt6pE9bYYyLo=
 github.com/graygnuorg/go-gdbm v0.0.0-20220711140707-71387d66dce4/go.mod h1:zpZDgZFzeq9s0MIeB1P50NIEWDFFHSFBohI/NbaTD/Y=
 github.com/hexops/gotextdiff v1.0.3 h1:gitA9+qJrrTCsiCl7+kh75nPqQt1cx4ZkudSTLoUqJM=

handlers/application/menuhandler.go

@@ -2651,3 +2651,378 @@ func (h *MenuHandlers) ClearTemporaryValue(ctx context.Context, sym string, inpu
 	}
 	return res, nil
 }
+
+// GetPools fetches a list of 5 top pools
+func (h *MenuHandlers) GetPools(ctx context.Context, sym string, input []byte) (resource.Result, error) {
+	var res resource.Result
+	sessionId, ok := ctx.Value("SessionId").(string)
+	if !ok {
+		return res, fmt.Errorf("missing session")
+	}
+	userStore := h.userdataStore
+
+	flag_api_error, _ := h.flagManager.GetFlag("flag_api_error")
+
+	// call the api to get a list of top 5 pools sorted by swaps
+	topPools, err := h.accountService.FetchTopPools(ctx)
+	if err != nil {
+		res.FlagSet = append(res.FlagSet, flag_api_error)
+		logg.ErrorCtxf(ctx, "failed on FetchTransactions", "error", err)
+		return res, err
+	}
+
+	// Return if there are no pools
+	if len(topPools) == 0 {
+		return res, nil
+	}
+
+	data := store.ProcessPools(topPools)
+
+	// Store all Pool data
+	dataMap := map[storedb.DataTyp]string{
+		storedb.DATA_POOL_NAMES:     data.PoolNames,
+		storedb.DATA_POOL_SYMBOLS:   data.PoolSymbols,
+		storedb.DATA_POOL_ADDRESSES: data.PoolContractAdrresses,
+	}
+
+	// Write data entries
+	for key, value := range dataMap {
+		if err := userStore.WriteEntry(ctx, sessionId, key, []byte(value)); err != nil {
+			logg.ErrorCtxf(ctx, "Failed to write data entry for sessionId: %s", sessionId, "key", key, "error", err)
+			continue
+		}
+	}
+
+	res.Content = h.ReplaceSeparatorFunc(data.PoolSymbols)
+
+	return res, nil
+}
+
+// LoadSwapFromList returns a list of possible vouchers to swap to
+func (h *MenuHandlers) LoadSwapToList(ctx context.Context, sym string, input []byte) (resource.Result, error) {
+	var res resource.Result
+	sessionId, ok := ctx.Value("SessionId").(string)
+	if !ok {
+		return res, fmt.Errorf("missing session")
+	}
+
+	userStore := h.userdataStore
+	publicKey, err := userStore.ReadEntry(ctx, sessionId, storedb.DATA_PUBLIC_KEY)
+	if err != nil {
+		logg.ErrorCtxf(ctx, "failed to read publicKey entry with", "key", storedb.DATA_PUBLIC_KEY, "error", err)
+		return res, err
+	}
+
+	// get the active address and symbol
+	activeAddress, err := userStore.ReadEntry(ctx, sessionId, storedb.DATA_ACTIVE_ADDRESS)
+	if err != nil {
+		logg.ErrorCtxf(ctx, "failed to read activeAddress entry with", "key", storedb.DATA_ACTIVE_ADDRESS, "error", err)
+		return res, err
+	}
+	activeSym, err := userStore.ReadEntry(ctx, sessionId, storedb.DATA_ACTIVE_SYM)
+	if err != nil {
+		logg.ErrorCtxf(ctx, "failed to read activeSym entry with", "key", storedb.DATA_ACTIVE_SYM, "error", err)
+		return res, err
+	}
+
+	code := codeFromCtx(ctx)
+	l := gotext.NewLocale(translationDir, code)
+	l.AddDomain("default")
+
+	flag_incorrect_voucher, _ := h.flagManager.GetFlag("flag_incorrect_voucher")
+	flag_api_error, _ := h.flagManager.GetFlag("flag_api_error")
+
+	inputStr := string(input)
+	if inputStr == "0" {
+		return res, nil
+	}
+
+	defaultPool := dataserviceapi.PoolDetails{
+		PoolName:            "Kenya ROLA Pool",
+		PoolSymbol:          "ROLA",
+		PoolContractAdrress: "0x48a953cA5cf5298bc6f6Af3C608351f537AAcb9e",
+		LimiterAddress:      "",
+		VoucherRegistry:     "",
+	}
+
+	activePoolAddress := defaultPool.PoolContractAdrress
+
+	// set the active pool contract address
+	err = userStore.WriteEntry(ctx, sessionId, storedb.DATA_ACTIVE_POOL_ADDRESS, []byte(activePoolAddress))
+	if err != nil {
+		logg.ErrorCtxf(ctx, "failed to write active PoolContractAdrress entry with", "key", storedb.DATA_ACTIVE_POOL_ADDRESS, "value", activePoolAddress, "error", err)
+		return res, err
+	}
+
+	// call the api using the ActivePoolAddress and ActiveVoucherAddress to check if it is part of the pool
+	r, err := h.accountService.CheckTokenInPool(ctx, activePoolAddress, string(activeAddress))
+	if err != nil {
+		res.FlagSet = append(res.FlagSet, flag_api_error)
+		logg.ErrorCtxf(ctx, "failed on CheckTokenInPool", "error", err)
+		return res, err
+	}
+
+	if !r.CanSwapFrom {
+		res.FlagSet = append(res.FlagSet, flag_incorrect_voucher)
+		res.Content = l.Get(
+			"%s is not in the KENYA ROLA POOL. Please update your voucher and try again.",
+			activeSym,
+		)
+		return res, nil
+	}
+
+	res.FlagReset = append(res.FlagReset, flag_incorrect_voucher)
+
+	// call the api using the activePoolAddress and publicKey to get a list of SwapToSymbolsData
+	swapToList, err := h.accountService.GetPoolSwappableVouchers(ctx, string(activePoolAddress), string(publicKey))
+	if err != nil {
+		res.FlagSet = append(res.FlagSet, flag_api_error)
+		logg.ErrorCtxf(ctx, "failed on FetchTransactions", "error", err)
+		return res, err
+	}
+
+	// Return if there are no vouchers
+	if len(swapToList) == 0 {
+		return res, nil
+	}
+
+	data := store.ProcessVouchers(swapToList)
+
+	// Store all to list voucher data
+	dataMap := map[storedb.DataTyp]string{
+		storedb.DATA_POOL_TO_SYMBOLS:   data.Symbols,
+		storedb.DATA_POOL_TO_BALANCES:  data.Balances,
+		storedb.DATA_POOL_TO_DECIMALS:  data.Decimals,
+		storedb.DATA_POOL_TO_ADDRESSES: data.Addresses,
+	}
+
+	for key, value := range dataMap {
+		if err := userStore.WriteEntry(ctx, sessionId, key, []byte(value)); err != nil {
+			logg.ErrorCtxf(ctx, "Failed to write data entry for sessionId: %s", sessionId, "key", key, "error", err)
+			continue
+		}
+	}
+
+	res.Content = h.ReplaceSeparatorFunc(data.Symbols)
+
+	return res, nil
+}
+
+// SwapMaxLimit returns the max FROM token
+// check if max/tokenDecimals > 0.1 for UX purposes and to prevent swapping of dust values
+func (h *MenuHandlers) SwapMaxLimit(ctx context.Context, sym string, input []byte) (resource.Result, error) {
+	var res resource.Result
+	sessionId, ok := ctx.Value("SessionId").(string)
+	if !ok {
+		return res, fmt.Errorf("missing session")
+	}
+
+	flag_incorrect_voucher, _ := h.flagManager.GetFlag("flag_incorrect_voucher")
+	flag_api_error, _ := h.flagManager.GetFlag("flag_api_error")
+	flag_low_swap_amount, _ := h.flagManager.GetFlag("flag_low_swap_amount")
+
+	res.FlagReset = append(res.FlagReset, flag_incorrect_voucher)
+	res.FlagReset = append(res.FlagSet, flag_low_swap_amount)
+
+	inputStr := string(input)
+	if inputStr == "0" {
+		return res, nil
+	}
+
+	userStore := h.userdataStore
+	metadata, err := store.GetSwapToVoucherData(ctx, userStore, sessionId, inputStr)
+	if err != nil {
+		return res, fmt.Errorf("failed to retrieve swap to voucher data: %v", err)
+	}
+	if metadata == nil {
+		res.FlagSet = append(res.FlagSet, flag_incorrect_voucher)
+		return res, nil
+	}
+
+	// Store the active swap_to data
+	if err := store.UpdateSwapToVoucherData(ctx, userStore, sessionId, metadata); err != nil {
+		logg.ErrorCtxf(ctx, "failed on UpdateSwapToVoucherData", "error", err)
+		return res, err
+	}
+
+	swapData, err := store.ReadSwapData(ctx, userStore, sessionId)
+	if err != nil {
+		return res, err
+	}
+
+	// call the api using the ActivePoolAddress, ActiveSwapFromAddress, ActiveSwapToAddress and PublicKey to get the swap max limit
+	r, err := h.accountService.GetSwapFromTokenMaxLimit(ctx, swapData.ActivePoolAddress, swapData.ActiveSwapFromAddress, swapData.ActiveSwapToAddress, swapData.PublicKey)
+	if err != nil {
+		res.FlagSet = append(res.FlagSet, flag_api_error)
+		logg.ErrorCtxf(ctx, "failed on FetchTransactions", "error", err)
+		return res, err
+	}
+
+	// Scale down the amount
+	maxAmountStr := store.ScaleDownBalance(r.Max, swapData.ActiveSwapFromDecimal)
+	if err != nil {
+		return res, err
+	}
+
+	maxAmountFloat, err := strconv.ParseFloat(maxAmountStr, 64)
+	if err != nil {
+		logg.ErrorCtxf(ctx, "failed to parse maxAmountStr as float", "value", maxAmountStr, "error", err)
+		return res, err
+	}
+
+	// Format to 2 decimal places
+	maxStr := fmt.Sprintf("%.2f", maxAmountFloat)
+
+	if maxAmountFloat < 0.1 {
+		// return with low amount flag
+		res.Content = maxStr
+		res.FlagSet = append(res.FlagSet, flag_low_swap_amount)
+		return res, nil
+	}
+
+	err = userStore.WriteEntry(ctx, sessionId, storedb.DATA_ACTIVE_SWAP_MAX_AMOUNT, []byte(maxStr))
+	if err != nil {
+		logg.ErrorCtxf(ctx, "failed to write swap max amount entry with", "key", storedb.DATA_ACTIVE_SWAP_MAX_AMOUNT, "value", maxStr, "error", err)
+		return res, err
+	}
+
+	res.Content = fmt.Sprintf(
+		"Maximum: %s\n\nEnter amount of %s to swap for %s:",
+		maxStr, swapData.ActiveSwapFromSym, swapData.ActiveSwapToSym,
+	)
+
+	return res, nil
+}
+
+// SwapPreview displays the swap preview and estimates
+func (h *MenuHandlers) SwapPreview(ctx context.Context, sym string, input []byte) (resource.Result, error) {
+	var res resource.Result
+	sessionId, ok := ctx.Value("SessionId").(string)
+	if !ok {
+		return res, fmt.Errorf("missing session")
+	}
+
+	inputStr := string(input)
+	if inputStr == "0" {
+		return res, nil
+	}
+
+	flag_invalid_amount, _ := h.flagManager.GetFlag("flag_invalid_amount")
+
+	code := codeFromCtx(ctx)
+	l := gotext.NewLocale(translationDir, code)
+	l.AddDomain("default")
+
+	userStore := h.userdataStore
+
+	swapData, err := store.ReadSwapPreviewData(ctx, userStore, sessionId)
+	if err != nil {
+		return res, err
+	}
+
+	maxValue, err := strconv.ParseFloat(swapData.ActiveSwapMaxAmount, 64)
+	if err != nil {
+		logg.ErrorCtxf(ctx, "Failed to convert the swapMaxAmount to a float", "error", err)
+		return res, err
+	}
+
+	inputAmount, err := strconv.ParseFloat(inputStr, 64)
+	if err != nil || inputAmount > maxValue {
+		res.FlagSet = append(res.FlagSet, flag_invalid_amount)
+		res.Content = inputStr
+		return res, nil
+	}
+
+	finalAmountStr, err := store.ParseAndScaleAmount(inputStr, swapData.ActiveSwapFromDecimal)
+	if err != nil {
+		return res, err
+	}
+
+	err = userStore.WriteEntry(ctx, sessionId, storedb.DATA_ACTIVE_SWAP_AMOUNT, []byte(finalAmountStr))
+	if err != nil {
+		logg.ErrorCtxf(ctx, "failed to write swap amount entry with", "key", storedb.DATA_ACTIVE_SWAP_AMOUNT, "value", finalAmountStr, "error", err)
+		return res, err
+	}
+
+	// call the API to get the quote
+	r, err := h.accountService.GetPoolSwapQuote(ctx, finalAmountStr, swapData.PublicKey, swapData.ActiveSwapFromAddress, swapData.ActivePoolAddress, swapData.ActiveSwapToAddress)
+	if err != nil {
+		flag_api_error, _ := h.flagManager.GetFlag("flag_api_call_error")
+		res.FlagSet = append(res.FlagSet, flag_api_error)
+		res.Content = l.Get("Your request failed. Please try again later.")
+		logg.ErrorCtxf(ctx, "failed on poolSwap", "error", err)
+		return res, nil
+	}
+
+	// Scale down the quoted amount
+	quoteAmountStr := store.ScaleDownBalance(r.OutValue, swapData.ActiveSwapToDecimal)
+	qouteAmount, err := strconv.ParseFloat(quoteAmountStr, 64)
+	if err != nil {
+		logg.ErrorCtxf(ctx, "failed to parse quoteAmountStr as float", "value", quoteAmountStr, "error", err)
+		return res, err
+	}
+
+	// Format to 2 decimal places
+	qouteStr := fmt.Sprintf("%.2f", qouteAmount)
+
+	res.Content = fmt.Sprintf(
+		"You will swap:\n%s %s for %s %s:",
+		inputStr, swapData.ActiveSwapFromSym, qouteStr, swapData.ActiveSwapToSym,
+	)
+
+	return res, nil
+}
+
+// InitiateSwap calls the poolSwap and returns a confirmation based on the result.
+func (h *MenuHandlers) InitiateSwap(ctx context.Context, sym string, input []byte) (resource.Result, error) {
+	var res resource.Result
+	var err error
+	sessionId, ok := ctx.Value("SessionId").(string)
+	if !ok {
+		return res, fmt.Errorf("missing session")
+	}
+
+	flag_account_authorized, _ := h.flagManager.GetFlag("flag_account_authorized")
+
+	code := codeFromCtx(ctx)
+	l := gotext.NewLocale(translationDir, code)
+	l.AddDomain("default")
+
+	userStore := h.userdataStore
+
+	swapData, err := store.ReadSwapPreviewData(ctx, userStore, sessionId)
+	if err != nil {
+		return res, err
+	}
+
+	swapAmount, err := userStore.ReadEntry(ctx, sessionId, storedb.DATA_ACTIVE_SWAP_AMOUNT)
+	if err != nil {
+		logg.ErrorCtxf(ctx, "failed to read swapAmount entry with", "key", storedb.DATA_ACTIVE_SWAP_AMOUNT, "error", err)
+		return res, err
+	}
+
+	swapAmountStr := string(swapAmount)
+
+	// Call the poolSwap API
+	r, err := h.accountService.PoolSwap(ctx, swapAmountStr, swapData.PublicKey, swapData.ActiveSwapFromAddress, swapData.ActivePoolAddress, swapData.ActiveSwapToAddress)
+	if err != nil {
+		flag_api_error, _ := h.flagManager.GetFlag("flag_api_call_error")
+		res.FlagSet = append(res.FlagSet, flag_api_error)
+		res.Content = l.Get("Your request failed. Please try again later.")
+		logg.ErrorCtxf(ctx, "failed on poolSwap", "error", err)
+		return res, nil
+	}
+
+	trackingId := r.TrackingId
+	logg.InfoCtxf(ctx, "poolSwap", "trackingId", trackingId)
+
+	res.Content = l.Get(
+		"Your request has been sent. You will receive an SMS when your %s %s has been swapped for %s.",
+		swapAmountStr,
+		swapData.ActiveSwapFromSym,
+		swapData.ActiveSwapToSym,
+	)
+
+	res.FlagReset = append(res.FlagReset, flag_account_authorized)
+	return res, nil
+}

handlers/local.go

@@ -130,7 +130,10 @@ func (ls *LocalHandlerService) GetHandler(accountService remote.AccountService)
 	ls.DbRs.AddLocalFunc("confirm_new_alias", appHandlers.ConfirmNewAlias)
 	ls.DbRs.AddLocalFunc("check_account_created", appHandlers.CheckAccountCreated)
 	ls.DbRs.AddLocalFunc("reset_api_call_failure", appHandlers.ResetApiCallFailure)
-
+    ls.DbRs.AddLocalFunc("swap_to_list", appHandlers.LoadSwapToList)
+	ls.DbRs.AddLocalFunc("swap_max_limit", appHandlers.SwapMaxLimit)
+	ls.DbRs.AddLocalFunc("swap_preview", appHandlers.SwapPreview)
+	ls.DbRs.AddLocalFunc("initiate_swap", appHandlers.InitiateSwap)
 	ls.first = appHandlers.Init
 
 	return appHandlers, nil

services/registration/api_failure

@@ -1 +1 @@
-Failed to connect to the custodial service .Please try again.
+Failed to connect to the custodial service. Please try again.

services/registration/locale/swa/default.po

@@ -31,6 +31,11 @@ msgstr "Salio la Kikundi: 0.00"
 msgid "Symbol: %s\nBalance: %s"
 msgstr "Sarafu: %s\nSalio: %s"
 
+msgid "Your request has been sent. You will receive an SMS when your %s %s has been swapped for %s."
+msgstr "Ombi lako limetumwa. Utapokea SMS wakati %s %s yako itakapobadilishwa kuwa %s."
 
 msgid "%s balance: %s\n"
-msgstr "%s salio: %s\n"
+msgstr "%s salio: %s\n"
+
+msgid "%s is not in the KENYA ROLA POOL. Please update your voucher and try again."
+msgstr "%s haipo kwenye BWAWA LA KENYA ROLA. Tafadhali badilisha sarafu yako na ujaribu tena."

services/registration/low_swap_amount

@@ -0,0 +1 @@
+Available amount {{.swap_max_limit}} is too low, please try again:

services/registration/low_swap_amount.vis

@@ -0,0 +1,6 @@
+MAP swap_max_limit
+MOUT retry 1
+MOUT quit 9
+HALT
+INCMP _ 1
+INCMP quit 9

services/registration/low_swap_amount_swa

@@ -0,0 +1 @@
+Kiasi kinachopatikana {{.swap_max_limit}} ni cha chini sana, tafadhali jaribu tena:

services/registration/main.vis

@@ -8,14 +8,16 @@ RELOAD check_balance
 CATCH api_failure flag_api_call_error 1
 MAP check_balance
 MOUT send 1
-MOUT vouchers 2
-MOUT account 3
-MOUT help 4
+MOUT swap 2
+MOUT vouchers 3
+MOUT account 4
+MOUT help 5
 MOUT quit 9
 HALT
 INCMP send 1
-INCMP my_vouchers 2
-INCMP my_account 3
-INCMP help 4
+INCMP swap_to_list 2
+INCMP my_vouchers 3
+INCMP my_account 4
+INCMP help 5
 INCMP quit 9
 INCMP . *

services/registration/missing_voucher

@@ -0,0 +1 @@
+{{.swap_to_list}}

services/registration/missing_voucher.vis

@@ -0,0 +1,6 @@
+MAP swap_to_list
+MOUT back 0
+MOUT quit 9
+HALT
+INCMP ^ 0
+INCMP quit 9

services/registration/missing_voucher_swa

@@ -0,0 +1 @@
+{{.swap_to_list}}

services/registration/pp.csv

@@ -31,4 +31,7 @@ flag,flag_back_set,37,this is set when it is a back navigation
 flag,flag_account_blocked,38,this is set when an account has been blocked after the allowed incorrect PIN attempts have been exceeded
 flag,flag_invalid_pin,39,this is set when the given PIN is invalid(is  less than or more than 4 digits)
 flag,flag_alias_set,40,this is set when an account alias has been assigned to a user
-flag,flag_account_pin_reset,41,this is set on an account when an admin triggers a PIN reset for them
+flag,flag_account_pin_reset,41,this is set on an account when an admin triggers a PIN reset for themflag,flag_incorrect_pool,39,this is set when the user selects an invalid pool
+flag,flag_incorrect_pool,42,this is set when the user selects an invalid pool
+flag,flag_low_swap_amount,43,this is set when the swap max limit is less than 0.1
+

services/registration/swap_initiated.vis

@@ -0,0 +1,3 @@
+LOAD reset_incorrect 6
+LOAD initiate_swap 0
+HALT

services/registration/swap_limit

@@ -0,0 +1 @@
+{{.swap_max_limit}}

services/registration/swap_limit.vis

@@ -0,0 +1,6 @@
+RELOAD swap_max_limit
+MAP swap_max_limit
+MOUT back 0
+HALT
+INCMP _ 0
+INCMP swap_preview *

services/registration/swap_limit_swa

@@ -0,0 +1 @@
+{{.swap_max_limit}}

services/registration/swap_menu

@@ -0,0 +1 @@
+Swap

services/registration/swap_preview

@@ -0,0 +1,3 @@
+{{.swap_preview}}
+
+Please enter your PIN to confirm:

services/registration/swap_preview.vis

@@ -0,0 +1,12 @@
+LOAD swap_preview 0
+MAP swap_preview
+MOUT back 0
+MOUT quit 9
+LOAD authorize_account 6
+HALT
+RELOAD authorize_account
+CATCH incorrect_pin flag_incorrect_pin 1
+CATCH . flag_account_authorized 0
+INCMP _ 0
+INCMP quit 9
+INCMP swap_initiated *

services/registration/swap_preview_swa

@@ -0,0 +1,3 @@
+{{.swap_preview}}
+
+Tafadhali weka PIN yako kudhibitisha:

services/registration/swap_to_list

@@ -0,0 +1,2 @@
+Select number or symbol to swap TO:
+{{.swap_to_list}}

services/registration/swap_to_list.vis

@@ -0,0 +1,12 @@
+LOAD swap_to_list 0
+RELOAD swap_to_list
+MAP swap_to_list
+CATCH missing_voucher flag_incorrect_voucher 1
+MOUT back 0
+HALT
+LOAD swap_max_limit 64
+RELOAD swap_max_limit
+CATCH . flag_incorrect_voucher 1
+CATCH low_swap_amount flag_low_swap_amount 1
+INCMP _ 0
+INCMP swap_limit *

services/registration/swap_to_list_swa

@@ -0,0 +1,2 @@
+Chagua nambari au ishara ya sarafu kubadilisha KWENDA:
+{{.swap_to_list}}

store/db/db.go

@@ -67,6 +67,24 @@ const (
 	DATA_SUGGESTED_ALIAS
 	//Key used to store a value of 1 for a user to reset their own PIN once they access the menu. 
 	DATA_SELF_PIN_RESET
+	// Holds the active pool contract address for the swap
+	DATA_ACTIVE_POOL_ADDRESS
+	// Currently active swap from symbol for the swap
+	DATA_ACTIVE_SWAP_FROM_SYM
+	// Currently active swap from decimal count for the swap
+	DATA_ACTIVE_SWAP_FROM_DECIMAL
+	// Holds the active swap from contract address for the swap
+	DATA_ACTIVE_SWAP_FROM_ADDRESS
+	// Currently active swap from to for the swap
+	DATA_ACTIVE_SWAP_TO_SYM
+	// Currently active swap to decimal count for the swap
+	DATA_ACTIVE_SWAP_TO_DECIMAL
+	// Holds the active pool contract address for the swap
+	DATA_ACTIVE_SWAP_TO_ADDRESS
+	// Holds the max swap amount for the swap
+	DATA_ACTIVE_SWAP_MAX_AMOUNT
+	// Holds the active swap amount for the swap
+	DATA_ACTIVE_SWAP_AMOUNT
 )
 
 const (
@@ -105,6 +123,31 @@ const (
 	DATA_TRANSACTIONS = 1024 + iota
 )
 
+const (
+	// List of voucher symbols in the top pools context.
+	DATA_POOL_NAMES = 2048 + iota
+	// List of symbols in the top pools context.
+	DATA_POOL_SYMBOLS
+	// List of contact addresses in the top pools context
+	DATA_POOL_ADDRESSES
+	// List of swap from voucher symbols in the user context.
+	DATA_POOL_FROM_SYMBOLS
+	// List of swap from balances for vouchers valid in the pools context.
+	DATA_POOL_FROM_BALANCES
+	// List of swap from decimal counts for vouchers valid in the pools context.
+	DATA_POOL_FROM_DECIMALS
+	// List of swap from EVM addresses for vouchers valid in the pools context.
+	DATA_POOL_FROM_ADDRESSES
+	// List of swap to voucher symbols in the user context.
+	DATA_POOL_TO_SYMBOLS
+	// List of swap to balances for vouchers valid in the pools context.
+	DATA_POOL_TO_BALANCES
+	// List of swap to decimal counts for vouchers valid in the pools context.
+	DATA_POOL_TO_DECIMALS
+	// List of swap to EVM addresses for vouchers valid in the pools context.
+	DATA_POOL_TO_ADDRESSES
+)
+
 var (
 	logg = logging.NewVanilla().WithDomain("urdt-common")
 )

store/pools.go

@@ -0,0 +1,93 @@
+package store
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	storedb "git.grassecon.net/grassrootseconomics/sarafu-vise/store/db"
+	dataserviceapi "github.com/grassrootseconomics/ussd-data-service/pkg/api"
+)
+
+// PoolsMetadata helps organize data fields
+type PoolsMetadata struct {
+	PoolNames             string
+	PoolSymbols           string
+	PoolContractAdrresses string
+}
+
+// ProcessPools converts pools into formatted strings
+func ProcessPools(pools []dataserviceapi.PoolDetails) PoolsMetadata {
+	var data PoolsMetadata
+	var poolNames, poolSymbols, poolContractAdrresses []string
+
+	for i, p := range pools {
+		poolNames = append(poolNames, fmt.Sprintf("%d:%s", i+1, p.PoolName))
+		poolSymbols = append(poolSymbols, fmt.Sprintf("%d:%s", i+1, p.PoolSymbol))
+		poolContractAdrresses = append(poolContractAdrresses, fmt.Sprintf("%d:%s", i+1, p.PoolContractAdrress))
+	}
+
+	data.PoolNames = strings.Join(poolNames, "\n")
+	data.PoolSymbols = strings.Join(poolSymbols, "\n")
+	data.PoolContractAdrresses = strings.Join(poolContractAdrresses, "\n")
+
+	return data
+}
+
+// GetPoolData retrieves and matches pool data
+// if no match is found, it fetches the API with the symbol
+func GetPoolData(ctx context.Context, store DataStore, sessionId string, input string) (*dataserviceapi.PoolDetails, error) {
+	keys := []storedb.DataTyp{
+		storedb.DATA_POOL_NAMES,
+		storedb.DATA_POOL_SYMBOLS,
+		storedb.DATA_POOL_ADDRESSES,
+	}
+	data := make(map[storedb.DataTyp]string)
+
+	for _, key := range keys {
+		value, err := store.ReadEntry(ctx, sessionId, key)
+		if err != nil {
+			return nil, fmt.Errorf("failed to get data key %x: %v", key, err)
+		}
+		data[key] = string(value)
+	}
+
+	name, symbol, address := MatchPool(input,
+		data[storedb.DATA_POOL_NAMES],
+		data[storedb.DATA_POOL_SYMBOLS],
+		data[storedb.DATA_POOL_ADDRESSES],
+	)
+
+	if symbol == "" {
+		return nil, nil
+	}
+
+	return &dataserviceapi.PoolDetails{
+		PoolName:            string(name),
+		PoolSymbol:          string(symbol),
+		PoolContractAdrress: string(address),
+	}, nil
+}
+
+// MatchPool finds the matching pool name, symbol and pool contract address based on the input.
+func MatchPool(input, names, symbols, addresses string) (name, symbol, address string) {
+	nameList := strings.Split(names, "\n")
+	symList := strings.Split(symbols, "\n")
+	addrList := strings.Split(addresses, "\n")
+
+	for i, sym := range symList {
+		parts := strings.SplitN(sym, ":", 2)
+
+		if input == parts[0] || strings.EqualFold(input, parts[1]) {
+			symbol = parts[1]
+			if i < len(nameList) {
+				name = strings.SplitN(nameList[i], ":", 2)[1]
+			}
+			if i < len(addrList) {
+				address = strings.SplitN(addrList[i], ":", 2)[1]
+			}
+			break
+		}
+	}
+	return
+}

store/swap.go

@@ -0,0 +1,187 @@
+package store
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"reflect"
+
+	storedb "git.grassecon.net/grassrootseconomics/sarafu-vise/store/db"
+	dataserviceapi "github.com/grassrootseconomics/ussd-data-service/pkg/api"
+)
+
+type SwapData struct {
+	PublicKey             string
+	ActivePoolAddress     string
+	ActiveSwapFromSym     string
+	ActiveSwapFromDecimal string
+	ActiveSwapFromAddress string
+	ActiveSwapToSym       string
+	ActiveSwapToAddress   string
+}
+
+type SwapPreviewData struct {
+	PublicKey             string
+	ActiveSwapMaxAmount   string
+	ActiveSwapFromDecimal string
+	ActivePoolAddress     string
+	ActiveSwapFromAddress string
+	ActiveSwapFromSym     string
+	ActiveSwapToAddress   string
+	ActiveSwapToSym       string
+	ActiveSwapToDecimal   string
+}
+
+func ReadSwapData(ctx context.Context, store DataStore, sessionId string) (SwapData, error) {
+	data := SwapData{}
+	fieldToKey := map[string]storedb.DataTyp{
+		"PublicKey":             storedb.DATA_PUBLIC_KEY,
+		"ActivePoolAddress":     storedb.DATA_ACTIVE_POOL_ADDRESS,
+		"ActiveSwapFromSym":     storedb.DATA_ACTIVE_SYM,
+		"ActiveSwapFromDecimal": storedb.DATA_ACTIVE_DECIMAL,
+		"ActiveSwapFromAddress": storedb.DATA_ACTIVE_ADDRESS,
+		"ActiveSwapToSym":       storedb.DATA_ACTIVE_SWAP_TO_SYM,
+		"ActiveSwapToAddress":   storedb.DATA_ACTIVE_SWAP_TO_ADDRESS,
+	}
+
+	v := reflect.ValueOf(&data).Elem()
+	for fieldName, key := range fieldToKey {
+		field := v.FieldByName(fieldName)
+		if !field.IsValid() || !field.CanSet() {
+			return data, errors.New("invalid struct field: " + fieldName)
+		}
+
+		value, err := ReadStringEntry(ctx, store, sessionId, key)
+		if err != nil {
+			return data, err
+		}
+		field.SetString(value)
+	}
+
+	return data, nil
+}
+
+func ReadSwapPreviewData(ctx context.Context, store DataStore, sessionId string) (SwapPreviewData, error) {
+	data := SwapPreviewData{}
+	fieldToKey := map[string]storedb.DataTyp{
+		"PublicKey":             storedb.DATA_PUBLIC_KEY,
+		"ActiveSwapMaxAmount":   storedb.DATA_ACTIVE_SWAP_MAX_AMOUNT,
+		"ActiveSwapFromDecimal": storedb.DATA_ACTIVE_DECIMAL,
+		"ActivePoolAddress":     storedb.DATA_ACTIVE_POOL_ADDRESS,
+		"ActiveSwapFromAddress": storedb.DATA_ACTIVE_ADDRESS,
+		"ActiveSwapFromSym":     storedb.DATA_ACTIVE_SYM,
+		"ActiveSwapToAddress":   storedb.DATA_ACTIVE_SWAP_TO_ADDRESS,
+		"ActiveSwapToSym":       storedb.DATA_ACTIVE_SWAP_TO_SYM,
+		"ActiveSwapToDecimal":   storedb.DATA_ACTIVE_SWAP_TO_DECIMAL,
+	}
+
+	v := reflect.ValueOf(&data).Elem()
+	for fieldName, key := range fieldToKey {
+		field := v.FieldByName(fieldName)
+		if !field.IsValid() || !field.CanSet() {
+			return data, errors.New("invalid struct field: " + fieldName)
+		}
+
+		value, err := ReadStringEntry(ctx, store, sessionId, key)
+		if err != nil {
+			return data, err
+		}
+		field.SetString(value)
+	}
+
+	return data, nil
+}
+
+// GetSwapFromVoucherData retrieves and matches swap from voucher data
+func GetSwapFromVoucherData(ctx context.Context, store DataStore, sessionId string, input string) (*dataserviceapi.TokenHoldings, error) {
+	keys := []storedb.DataTyp{
+		storedb.DATA_POOL_FROM_SYMBOLS,
+		storedb.DATA_POOL_FROM_BALANCES,
+		storedb.DATA_POOL_FROM_DECIMALS,
+		storedb.DATA_POOL_FROM_ADDRESSES,
+	}
+	data := make(map[storedb.DataTyp]string)
+
+	for _, key := range keys {
+		value, err := store.ReadEntry(ctx, sessionId, key)
+		if err != nil {
+			return nil, fmt.Errorf("failed to get data key %x: %v", key, err)
+		}
+		data[key] = string(value)
+	}
+
+	symbol, balance, decimal, address := MatchVoucher(input,
+		data[storedb.DATA_POOL_FROM_SYMBOLS],
+		data[storedb.DATA_POOL_FROM_BALANCES],
+		data[storedb.DATA_POOL_FROM_DECIMALS],
+		data[storedb.DATA_POOL_FROM_ADDRESSES],
+	)
+
+	if symbol == "" {
+		return nil, nil
+	}
+
+	return &dataserviceapi.TokenHoldings{
+		TokenSymbol:     string(symbol),
+		Balance:         string(balance),
+		TokenDecimals:   string(decimal),
+		ContractAddress: string(address),
+	}, nil
+}
+
+// GetSwapToVoucherData retrieves and matches voucher data
+func GetSwapToVoucherData(ctx context.Context, store DataStore, sessionId string, input string) (*dataserviceapi.TokenHoldings, error) {
+	keys := []storedb.DataTyp{
+		storedb.DATA_POOL_TO_SYMBOLS,
+		storedb.DATA_POOL_TO_BALANCES,
+		storedb.DATA_POOL_TO_DECIMALS,
+		storedb.DATA_POOL_TO_ADDRESSES,
+	}
+	data := make(map[storedb.DataTyp]string)
+
+	for _, key := range keys {
+		value, err := store.ReadEntry(ctx, sessionId, key)
+		if err != nil {
+			return nil, fmt.Errorf("failed to get data key %x: %v", key, err)
+		}
+		data[key] = string(value)
+	}
+
+	symbol, balance, decimal, address := MatchVoucher(input,
+		data[storedb.DATA_POOL_TO_SYMBOLS],
+		data[storedb.DATA_POOL_TO_BALANCES],
+		data[storedb.DATA_POOL_TO_DECIMALS],
+		data[storedb.DATA_POOL_TO_ADDRESSES],
+	)
+
+	if symbol == "" {
+		return nil, nil
+	}
+
+	return &dataserviceapi.TokenHoldings{
+		TokenSymbol:     string(symbol),
+		Balance:         string(balance),
+		TokenDecimals:   string(decimal),
+		ContractAddress: string(address),
+	}, nil
+}
+
+// UpdateSwapToVoucherData updates the active swap to voucher data in the DataStore.
+func UpdateSwapToVoucherData(ctx context.Context, store DataStore, sessionId string, data *dataserviceapi.TokenHoldings) error {
+	logg.TraceCtxf(ctx, "dtal", "data", data)
+	// Active swap to voucher data entries
+	activeEntries := map[storedb.DataTyp][]byte{
+		storedb.DATA_ACTIVE_SWAP_TO_SYM:     []byte(data.TokenSymbol),
+		storedb.DATA_ACTIVE_SWAP_TO_DECIMAL: []byte(data.TokenDecimals),
+		storedb.DATA_ACTIVE_SWAP_TO_ADDRESS: []byte(data.ContractAddress),
+	}
+
+	// Write active data
+	for key, value := range activeEntries {
+		if err := store.WriteEntry(ctx, sessionId, key, value); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}

store/swap_test.go

@@ -0,0 +1,146 @@
+package store
+
+import (
+	"testing"
+
+	storedb "git.grassecon.net/grassrootseconomics/sarafu-vise/store/db"
+	"github.com/alecthomas/assert/v2"
+)
+
+func TestReadSwapData(t *testing.T) {
+	sessionId := "session123"
+	publicKey := "0X13242618721"
+	ctx, store := InitializeTestDb(t)
+
+	// Test swap data
+	swapData := map[storedb.DataTyp]string{
+		storedb.DATA_PUBLIC_KEY:               publicKey,
+		storedb.DATA_ACTIVE_POOL_ADDRESS:      "0x48a953cA5cf5298bc6f6Af3C608351f537AAcb9e",
+		storedb.DATA_ACTIVE_SWAP_FROM_SYM:     "AMANI",
+		storedb.DATA_ACTIVE_SWAP_FROM_DECIMAL: "6",
+		storedb.DATA_ACTIVE_SWAP_FROM_ADDRESS: "0xc7B78Ac9ACB9E025C8234621FC515bC58179dEAe",
+		storedb.DATA_ACTIVE_SWAP_TO_SYM:       "cUSD",
+		storedb.DATA_ACTIVE_SWAP_TO_ADDRESS:   "0x765DE816845861e75A25fCA122bb6898B8B1282a",
+	}
+
+	// Store the data
+	for key, value := range swapData {
+		if err := store.WriteEntry(ctx, sessionId, key, []byte(value)); err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	expectedResult := SwapData{
+		PublicKey:             "0X13242618721",
+		ActivePoolAddress:     "0x48a953cA5cf5298bc6f6Af3C608351f537AAcb9e",
+		ActiveSwapFromSym:     "AMANI",
+		ActiveSwapFromDecimal: "6",
+		ActiveSwapFromAddress: "0xc7B78Ac9ACB9E025C8234621FC515bC58179dEAe",
+		ActiveSwapToSym:       "cUSD",
+		ActiveSwapToAddress:   "0x765DE816845861e75A25fCA122bb6898B8B1282a",
+	}
+
+	data, err := ReadSwapData(ctx, store, sessionId)
+
+	assert.NoError(t, err)
+	assert.Equal(t, expectedResult, data)
+}
+
+func TestReadSwapPreviewData(t *testing.T) {
+	sessionId := "session123"
+	publicKey := "0X13242618721"
+	ctx, store := InitializeTestDb(t)
+
+	// Test swap preview data
+	swapPreviewData := map[storedb.DataTyp]string{
+		storedb.DATA_PUBLIC_KEY:               publicKey,
+		storedb.DATA_ACTIVE_SWAP_MAX_AMOUNT:   "1339482",
+		storedb.DATA_ACTIVE_SWAP_FROM_DECIMAL: "6",
+		storedb.DATA_ACTIVE_POOL_ADDRESS:      "0x48a953cA5cf5298bc6f6Af3C608351f537AAcb9e",
+		storedb.DATA_ACTIVE_SWAP_FROM_ADDRESS: "0xc7B78Ac9ACB9E025C8234621FC515bC58179dEAe",
+		storedb.DATA_ACTIVE_SWAP_FROM_SYM:     "AMANI",
+		storedb.DATA_ACTIVE_SWAP_TO_ADDRESS:   "0x765DE816845861e75A25fCA122bb6898B8B1282a",
+		storedb.DATA_ACTIVE_SWAP_TO_SYM:       "cUSD",
+		storedb.DATA_ACTIVE_SWAP_TO_DECIMAL:   "18",
+	}
+
+	// Store the data
+	for key, value := range swapPreviewData {
+		if err := store.WriteEntry(ctx, sessionId, key, []byte(value)); err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	expectedResult := SwapPreviewData{
+		PublicKey:             "0X13242618721",
+		ActiveSwapMaxAmount:   "1339482",
+		ActiveSwapFromDecimal: "6",
+		ActivePoolAddress:     "0x48a953cA5cf5298bc6f6Af3C608351f537AAcb9e",
+		ActiveSwapFromAddress: "0xc7B78Ac9ACB9E025C8234621FC515bC58179dEAe",
+		ActiveSwapFromSym:     "AMANI",
+		ActiveSwapToAddress:   "0x765DE816845861e75A25fCA122bb6898B8B1282a",
+		ActiveSwapToSym:       "cUSD",
+		ActiveSwapToDecimal:   "18",
+	}
+
+	data, err := ReadSwapPreviewData(ctx, store, sessionId)
+
+	assert.NoError(t, err)
+	assert.Equal(t, expectedResult, data)
+}
+
+func TestGetSwapFromVoucherData(t *testing.T) {
+	sessionId := "session123"
+	ctx, store := InitializeTestDb(t)
+
+	// Test pool swap data
+	mockData := map[storedb.DataTyp][]byte{
+		storedb.DATA_POOL_FROM_SYMBOLS:   []byte("1:AMANI\n2:AMUA"),
+		storedb.DATA_POOL_FROM_BALANCES:  []byte("1:\n2:"),
+		storedb.DATA_POOL_FROM_DECIMALS:  []byte("1:6\n2:4"),
+		storedb.DATA_POOL_FROM_ADDRESSES: []byte("1:0xc7B78Ac9ACB9E025C8234621FC515bC58179dEAe\n2:0xF0C3C7581b8b96B59a97daEc8Bd48247cE078674"),
+	}
+
+	// Put the data
+	for key, value := range mockData {
+		if err := store.WriteEntry(ctx, sessionId, key, []byte(value)); err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	result, err := GetSwapFromVoucherData(ctx, store, sessionId, "1")
+
+	assert.NoError(t, err)
+	assert.Equal(t, "AMANI", result.TokenSymbol)
+	assert.Equal(t, "", result.Balance)
+	assert.Equal(t, "6", result.TokenDecimals)
+	assert.Equal(t, "0xc7B78Ac9ACB9E025C8234621FC515bC58179dEAe", result.ContractAddress)
+}
+
+func TestGetSwapToVoucherData(t *testing.T) {
+	sessionId := "session123"
+	ctx, store := InitializeTestDb(t)
+
+	// Test pool swap data
+	mockData := map[storedb.DataTyp][]byte{
+		storedb.DATA_POOL_TO_SYMBOLS:   []byte("1:cUSD\n2:AMUA"),
+		storedb.DATA_POOL_TO_BALANCES:  []byte("1:\n2:"),
+		storedb.DATA_POOL_TO_DECIMALS:  []byte("1:6\n2:4"),
+		storedb.DATA_POOL_TO_ADDRESSES: []byte("1:0xc7B78Ac9ACB9E025C8234621\n2:0xF0C3C7581b8b96B59a97daEc8Bd48247cE078674"),
+	}
+
+	// Put the data
+	for key, value := range mockData {
+		if err := store.WriteEntry(ctx, sessionId, key, []byte(value)); err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	result, err := GetSwapToVoucherData(ctx, store, sessionId, "1")
+
+	assert.NoError(t, err)
+	assert.Equal(t, "cUSD", result.TokenSymbol)
+	assert.Equal(t, "", result.Balance)
+	assert.Equal(t, "6", result.TokenDecimals)
+	assert.Equal(t, "0xc7B78Ac9ACB9E025C8234621", result.ContractAddress)
+}

store/tokens.go

@@ -64,7 +64,7 @@ func ReadTransactionData(ctx context.Context, store DataStore, sessionId string)
 			return data, errors.New("invalid struct field: " + fieldName)
 		}
 
-		value, err := readStringEntry(ctx, store, sessionId, key)
+		value, err := ReadStringEntry(ctx, store, sessionId, key)
 		if err != nil {
 			return data, err
 		}
@@ -74,7 +74,7 @@ func ReadTransactionData(ctx context.Context, store DataStore, sessionId string)
 	return data, nil
 }
 
-func readStringEntry(ctx context.Context, store DataStore, sessionId string, key storedb.DataTyp) (string, error) {
+func ReadStringEntry(ctx context.Context, store DataStore, sessionId string, key storedb.DataTyp) (string, error) {
 	entry, err := store.ReadEntry(ctx, sessionId, key)
 	if err != nil {
 		return "", err