Use the DATA_TEMPORARY_VALUE for the user data

Reviewed-on: #149

common/hex.go

@@ -0,0 +1,18 @@
+package common
+
+import (
+	"encoding/hex"
+)
+
+func NormalizeHex(s string) (string, error) {
+	if len(s) >= 2 {
+		if s[:2] == "0x" {
+			s = s[2:]
+		}
+	}
+	r, err := hex.DecodeString(s)
+	if err != nil {
+		return "", err
+	}
+	return hex.EncodeToString(r), nil
+}

go.mod

@@ -7,19 +7,19 @@ toolchain go1.23.2
 require (
 	git.defalsify.org/vise.git v0.2.1-0.20241017112704-307fa6fcdc6b
 	github.com/alecthomas/assert/v2 v2.2.2
+	github.com/grassrootseconomics/eth-custodial v1.3.0-beta
 	github.com/peteole/testdata-loader v0.3.0
 	gopkg.in/leonelquinteros/gotext.v1 v1.3.1
-
 )
 
-require github.com/joho/godotenv v1.5.1
+require github.com/grassrootseconomics/ussd-data-service v0.0.0-20241003123429-4904b4438a3a // indirect
 
 require (
-	github.com/grassrootseconomics/eth-custodial v1.3.0-beta
 	github.com/jackc/pgpassfile v1.0.0 // indirect
 	github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
 	github.com/jackc/pgx/v5 v5.7.1 // indirect
 	github.com/jackc/puddle/v2 v2.2.2 // indirect
+	github.com/joho/godotenv v1.5.1
 	github.com/kr/text v0.2.0 // indirect
 	github.com/rogpeppe/go-internal v1.13.1 // indirect
 	golang.org/x/crypto v0.27.0 // indirect
@@ -42,7 +42,4 @@ require (
 	github.com/stretchr/testify v1.9.0
 	github.com/x448/float16 v0.8.4 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
-
 )
-
-

go.sum

@@ -18,6 +18,8 @@ github.com/gofrs/uuid v4.4.0+incompatible h1:3qXRTX8/NbyulANqlc0lchS1gqAVxRgsuW1
 github.com/gofrs/uuid v4.4.0+incompatible/go.mod h1:b2aQJv3Z4Fp6yNu3cdSllBxTCLRxnplIgP/c0N/04lM=
 github.com/grassrootseconomics/eth-custodial v1.3.0-beta h1:twrMBhl89GqDUL9PlkzQxMP/6OST1BByrNDj+rqXDmU=
 github.com/grassrootseconomics/eth-custodial v1.3.0-beta/go.mod h1:7uhRcdnJplX4t6GKCEFkbeDhhjlcaGJeJqevbcvGLZo=
+github.com/grassrootseconomics/ussd-data-service v0.0.0-20241003123429-4904b4438a3a h1:q/YH7nE2j8epNmFnTu0tU1vwtCxtQ6nH+d7hRVV5krU=
+github.com/grassrootseconomics/ussd-data-service v0.0.0-20241003123429-4904b4438a3a/go.mod h1:hdKaKwqiW6/kphK4j/BhmuRlZDLo1+DYo3gYw5O0siw=
 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=

internal/handlers/server/accountservice.go

@@ -8,7 +8,6 @@ import (
 	"io"
 	"net/http"
 	"os"
-	"time"
 
 	"git.grassecon.net/urdt/ussd/config"
 	"git.grassecon.net/urdt/ussd/internal/models"
@@ -31,9 +30,6 @@ type AccountServiceInterface interface {
 type AccountService struct {
 }
 
-type TestAccountService struct {
-}
-
 // Parameters:
 //   - trackingId: A unique identifier for the account.This should be obtained from a previous call to
 //     CreateAccount or a similar function that returns an AccountResponse. The `trackingId` field in the
@@ -187,88 +183,3 @@ func (as *AccountService) FetchVouchers(ctx context.Context, publicKey string) (
 	}
 	return &holdings, nil
 }
-
-func (tas *TestAccountService) CreateAccount(ctx context.Context) (*api.OKResponse, error) {
-	return &api.OKResponse{
-		Ok:          true,
-		Description: "Account creation request received successfully",
-		Result:      map[string]any{"publicKey": "0x48ADca309b5085852207FAaf2816eD72B52F527C", "trackingId": "28ebe84d-b925-472c-87ae-bbdfa1fb97be"},
-	}, nil
-
-}
-
-func (tas *TestAccountService) CheckBalance(ctx context.Context, publicKey string) (*models.BalanceResponse, error) {
-	balanceResponse := &models.BalanceResponse{
-		Ok: true,
-		Result: struct {
-			Balance string      `json:"balance"`
-			Nonce   json.Number `json:"nonce"`
-		}{
-			Balance: "0.003 CELO",
-			Nonce:   json.Number("0"),
-		},
-	}
-	return balanceResponse, nil
-}
-
-func (tas *TestAccountService) TrackAccountStatus(ctx context.Context, publicKey string) (*api.OKResponse, error) {
-	return &api.OKResponse{
-		Ok:          true,
-		Description: "Account creation succeeded",
-		Result: map[string]any{
-			"active": true,
-		},
-	}, nil
-}
-
-func (tas *TestAccountService) CheckAccountStatus(ctx context.Context, trackingId string) (*models.TrackStatusResponse, error) {
-	trackResponse := &models.TrackStatusResponse{
-		Ok: true,
-		Result: struct {
-			Transaction struct {
-				CreatedAt     time.Time   "json:\"createdAt\""
-				Status        string      "json:\"status\""
-				TransferValue json.Number "json:\"transferValue\""
-				TxHash        string      "json:\"txHash\""
-				TxType        string      "json:\"txType\""
-			}
-		}{
-			Transaction: models.Transaction{
-				CreatedAt:     time.Now(),
-				Status:        "SUCCESS",
-				TransferValue: json.Number("0.5"),
-				TxHash:        "0x123abc456def",
-				TxType:        "transfer",
-			},
-		},
-	}
-	return trackResponse, nil
-}
-
-func (tas *TestAccountService) FetchVouchers(ctx context.Context, publicKey string) (*models.VoucherHoldingResponse, error) {
-	return &models.VoucherHoldingResponse{
-		Ok: true,
-		Result: struct {
-			Holdings []struct {
-				ContractAddress string `json:"contractAddress"`
-				TokenSymbol     string `json:"tokenSymbol"`
-				TokenDecimals   string `json:"tokenDecimals"`
-				Balance         string `json:"balance"`
-			} `json:"holdings"`
-		}{
-			Holdings: []struct {
-				ContractAddress string `json:"contractAddress"`
-				TokenSymbol     string `json:"tokenSymbol"`
-				TokenDecimals   string `json:"tokenDecimals"`
-				Balance         string `json:"balance"`
-			}{
-				{
-					ContractAddress: "0x6CC75A06ac72eB4Db2eE22F781F5D100d8ec03ee",
-					TokenSymbol:     "SRF",
-					TokenDecimals:   "6",
-					Balance:         "2745987",
-				},
-			},
-		},
-	}, nil
-}

internal/handlers/ussd/menuhandler.go

@@ -19,6 +19,7 @@ import (
 	"git.defalsify.org/vise.git/persist"
 	"git.defalsify.org/vise.git/resource"
 	"git.defalsify.org/vise.git/state"
+	"git.grassecon.net/urdt/ussd/common"
 	"git.grassecon.net/urdt/ussd/internal/handlers/server"
 	"git.grassecon.net/urdt/ussd/internal/utils"
 	"gopkg.in/leonelquinteros/gotext.v1"
@@ -64,6 +65,7 @@ type Handlers struct {
 	userdataStore  utils.DataStore
 	flagManager    *asm.FlagParser
 	accountService server.AccountServiceInterface
+	prefixDb       storage.PrefixDb
 }
 
 func NewHandlers(appFlags *asm.FlagParser, userdataStore db.Db, accountService server.AccountServiceInterface) (*Handlers, error) {
@@ -73,10 +75,14 @@ func NewHandlers(appFlags *asm.FlagParser, userdataStore db.Db, accountService s
 	userDb := &utils.UserDataStore{
 		Db: userdataStore,
 	}
+	// Instantiate the SubPrefixDb with "vouchers" prefix
+	prefixDb := storage.NewSubPrefixDb(userdataStore, []byte("vouchers"))
+
 	h := &Handlers{
 		userdataStore:  userDb,
 		flagManager:    appFlags,
 		accountService: accountService,
+		prefixDb:       prefixDb,
 	}
 	return h, nil
 }
@@ -152,15 +158,22 @@ func (h *Handlers) createAccountNoExist(ctx context.Context, sessionId string, r
 	data := map[utils.DataTyp]string{
 		utils.DATA_TRACKING_ID: trackingId,
 		utils.DATA_PUBLIC_KEY:  publicKey,
-		utils.DATA_ADDRESS:     sessionId,
 	}
+	store := h.userdataStore
 	for key, value := range data {
-		store := h.userdataStore
-		err := store.WriteEntry(ctx, sessionId, key, []byte(value))
+		err = store.WriteEntry(ctx, sessionId, key, []byte(value))
 		if err != nil {
 			return err
 		}
 	}
+	publicKeyNormalized, err := common.NormalizeHex(publicKey)
+	if err != nil {
+		return err
+	}
+	err = store.WriteEntry(ctx, publicKeyNormalized, utils.DATA_PUBLIC_KEY_REVERSE, []byte(sessionId))
+	if err != nil {
+		return err
+	}
 	res.FlagSet = append(res.FlagSet, flag_account_created)
 	return nil
 
@@ -208,7 +221,7 @@ func (h *Handlers) VerifyNewPin(ctx context.Context, sym string, input []byte) (
 	return res, nil
 }
 
-// SaveTemporaryPin saves the valid PIN input to the DATA_TEMPORARY_PIN
+// SaveTemporaryPin saves the valid PIN input to the DATA_TEMPORARY_VALUE
 // during the account creation process
 // and during the change PIN process
 func (h *Handlers) SaveTemporaryPin(ctx context.Context, sym string, input []byte) (resource.Result, error) {
@@ -233,7 +246,7 @@ func (h *Handlers) SaveTemporaryPin(ctx context.Context, sym string, input []byt
 	res.FlagReset = append(res.FlagReset, flag_incorrect_pin)
 
 	store := h.userdataStore
-	err = store.WriteEntry(ctx, sessionId, utils.DATA_TEMPORARY_PIN, []byte(accountPIN))
+	err = store.WriteEntry(ctx, sessionId, utils.DATA_TEMPORARY_VALUE, []byte(accountPIN))
 	if err != nil {
 		return res, err
 	}
@@ -250,7 +263,7 @@ func (h *Handlers) ConfirmPinChange(ctx context.Context, sym string, input []byt
 	flag_pin_mismatch, _ := h.flagManager.GetFlag("flag_pin_mismatch")
 
 	store := h.userdataStore
-	temporaryPin, err := store.ReadEntry(ctx, sessionId, utils.DATA_TEMPORARY_PIN)
+	temporaryPin, err := store.ReadEntry(ctx, sessionId, utils.DATA_TEMPORARY_VALUE)
 	if err != nil {
 		return res, err
 	}
@@ -281,7 +294,7 @@ func (h *Handlers) VerifyCreatePin(ctx context.Context, sym string, input []byte
 		return res, fmt.Errorf("missing session")
 	}
 	store := h.userdataStore
-	temporaryPin, err := store.ReadEntry(ctx, sessionId, utils.DATA_TEMPORARY_PIN)
+	temporaryPin, err := store.ReadEntry(ctx, sessionId, utils.DATA_TEMPORARY_VALUE)
 	if err != nil {
 		return res, err
 	}
@@ -320,10 +333,18 @@ func (h *Handlers) SaveFirstname(ctx context.Context, sym string, input []byte)
 	if !ok {
 		return res, fmt.Errorf("missing session")
 	}
-	if len(input) > 0 {
-		firstName := string(input)
-		store := h.userdataStore
-		err = store.WriteEntry(ctx, sessionId, utils.DATA_FIRST_NAME, []byte(firstName))
+	firstName := string(input)
+	store := h.userdataStore
+	flag_allow_update, _ := h.flagManager.GetFlag("flag_allow_update")
+	allowUpdate := h.st.MatchFlag(flag_allow_update, true)
+	if allowUpdate {
+		temporaryFirstName, _ := store.ReadEntry(ctx, sessionId, utils.DATA_TEMPORARY_VALUE)
+		err = store.WriteEntry(ctx, sessionId, utils.DATA_FIRST_NAME, []byte(temporaryFirstName))
+		if err != nil {
+			return res, err
+		}
+	} else {
+		err = store.WriteEntry(ctx, sessionId, utils.DATA_TEMPORARY_VALUE, []byte(firstName))
 		if err != nil {
 			return res, err
 		}
@@ -340,18 +361,24 @@ func (h *Handlers) SaveFamilyname(ctx context.Context, sym string, input []byte)
 	if !ok {
 		return res, fmt.Errorf("missing session")
 	}
+	store := h.userdataStore
+	familyName := string(input)
 
-	if len(input) > 0 {
-		familyName := string(input)
-		store := h.userdataStore
-		err = store.WriteEntry(ctx, sessionId, utils.DATA_FAMILY_NAME, []byte(familyName))
+	flag_allow_update, _ := h.flagManager.GetFlag("flag_allow_update")
+	allowUpdate := h.st.MatchFlag(flag_allow_update, true)
+
+	if allowUpdate {
+		temporaryFamilyName, _ := store.ReadEntry(ctx, sessionId, utils.DATA_TEMPORARY_VALUE)
+		err = store.WriteEntry(ctx, sessionId, utils.DATA_FAMILY_NAME, []byte(temporaryFamilyName))
 		if err != nil {
 			return res, err
 		}
 	} else {
-		return res, fmt.Errorf("a family name cannot be less than one character")
+		err = store.WriteEntry(ctx, sessionId, utils.DATA_TEMPORARY_VALUE, []byte(familyName))
+		if err != nil {
+			return res, err
+		}
 	}
-
 	return res, nil
 }
 
@@ -363,10 +390,19 @@ func (h *Handlers) SaveYob(ctx context.Context, sym string, input []byte) (resou
 	if !ok {
 		return res, fmt.Errorf("missing session")
 	}
-	if len(input) == 4 {
-		yob := string(input)
-		store := h.userdataStore
-		err = store.WriteEntry(ctx, sessionId, utils.DATA_YOB, []byte(yob))
+	yob := string(input)
+	store := h.userdataStore
+	flag_allow_update, _ := h.flagManager.GetFlag("flag_allow_update")
+	allowUpdate := h.st.MatchFlag(flag_allow_update, true)
+
+	if allowUpdate {
+		temporaryYob, _ := store.ReadEntry(ctx, sessionId, utils.DATA_TEMPORARY_VALUE)
+		err = store.WriteEntry(ctx, sessionId, utils.DATA_YOB, []byte(temporaryYob))
+		if err != nil {
+			return res, err
+		}
+	} else {
+		err = store.WriteEntry(ctx, sessionId, utils.DATA_TEMPORARY_VALUE, []byte(yob))
 		if err != nil {
 			return res, err
 		}
@@ -383,11 +419,20 @@ func (h *Handlers) SaveLocation(ctx context.Context, sym string, input []byte) (
 	if !ok {
 		return res, fmt.Errorf("missing session")
 	}
+	location := string(input)
+	store := h.userdataStore
 
-	if len(input) > 0 {
-		location := string(input)
-		store := h.userdataStore
-		err = store.WriteEntry(ctx, sessionId, utils.DATA_LOCATION, []byte(location))
+	flag_allow_update, _ := h.flagManager.GetFlag("flag_allow_update")
+	allowUpdate := h.st.MatchFlag(flag_allow_update, true)
+
+	if allowUpdate {
+		temporaryLocation, _ := store.ReadEntry(ctx, sessionId, utils.DATA_TEMPORARY_VALUE)
+		err = store.WriteEntry(ctx, sessionId, utils.DATA_LOCATION, []byte(temporaryLocation))
+		if err != nil {
+			return res, err
+		}
+	} else {
+		err = store.WriteEntry(ctx, sessionId, utils.DATA_TEMPORARY_VALUE, []byte(location))
 		if err != nil {
 			return res, err
 		}
@@ -407,9 +452,20 @@ func (h *Handlers) SaveGender(ctx context.Context, sym string, input []byte) (re
 	}
 	gender := strings.Split(symbol, "_")[1]
 	store := h.userdataStore
-	err = store.WriteEntry(ctx, sessionId, utils.DATA_GENDER, []byte(gender))
-	if err != nil {
-		return res, nil
+	flag_allow_update, _ := h.flagManager.GetFlag("flag_allow_update")
+	allowUpdate := h.st.MatchFlag(flag_allow_update, true)
+
+	if allowUpdate {
+		temporaryGender, _ := store.ReadEntry(ctx, sessionId, utils.DATA_TEMPORARY_VALUE)
+		err = store.WriteEntry(ctx, sessionId, utils.DATA_GENDER, []byte(temporaryGender))
+		if err != nil {
+			return res, err
+		}
+	} else {
+		err = store.WriteEntry(ctx, sessionId, utils.DATA_TEMPORARY_VALUE, []byte(gender))
+		if err != nil {
+			return res, err
+		}
 	}
 
 	return res, nil
@@ -423,12 +479,22 @@ func (h *Handlers) SaveOfferings(ctx context.Context, sym string, input []byte)
 	if !ok {
 		return res, fmt.Errorf("missing session")
 	}
-	if len(input) > 0 {
-		offerings := string(input)
-		store := h.userdataStore
-		err = store.WriteEntry(ctx, sessionId, utils.DATA_OFFERINGS, []byte(offerings))
+	offerings := string(input)
+	store := h.userdataStore
+
+	flag_allow_update, _ := h.flagManager.GetFlag("flag_allow_update")
+	allowUpdate := h.st.MatchFlag(flag_allow_update, true)
+
+	if allowUpdate {
+		temporaryOfferings, _ := store.ReadEntry(ctx, sessionId, utils.DATA_TEMPORARY_VALUE)
+		err = store.WriteEntry(ctx, sessionId, utils.DATA_OFFERINGS, []byte(temporaryOfferings))
 		if err != nil {
-			return res, nil
+			return res, err
+		}
+	} else {
+		err = store.WriteEntry(ctx, sessionId, utils.DATA_TEMPORARY_VALUE, []byte(offerings))
+		if err != nil {
+			return res, err
 		}
 	}
 
@@ -533,7 +599,6 @@ func (h *Handlers) CheckAccountStatus(ctx context.Context, sym string, input []b
 	if err != nil {
 		return res, err
 	}
-
 	okResponse, err = h.accountService.TrackAccountStatus(ctx, string(publicKey))
 	if err != nil {
 		res.FlagSet = append(res.FlagSet, flag_api_error)
@@ -1033,13 +1098,13 @@ func (h *Handlers) SetDefaultVoucher(ctx context.Context, sym string, input []by
 		if db.IsNotFound(err) {
 			publicKey, err := store.ReadEntry(ctx, sessionId, utils.DATA_PUBLIC_KEY)
 			if err != nil {
-				return res, nil
+				return res, err
 			}
 
 			// Fetch vouchers from the API using the public key
 			vouchersResp, err := h.accountService.FetchVouchers(ctx, string(publicKey))
 			if err != nil {
-				return res, nil
+				return res, err
 			}
 
 			// Return if there is no voucher
@@ -1096,54 +1161,33 @@ func (h *Handlers) CheckVouchers(ctx context.Context, sym string, input []byte)
 		return res, nil
 	}
 
-	// process voucher data
-	voucherSymbolList, voucherBalanceList := ProcessVouchers(vouchersResp.Result.Holdings)
+	data := utils.ProcessVouchers(vouchersResp.Result.Holdings)
 
-	prefixdb := storage.NewSubPrefixDb(store, []byte("vouchers"))
-	err = prefixdb.Put(ctx, []byte("sym"), []byte(voucherSymbolList))
-	if err != nil {
-		return res, nil
+	// Store all voucher data
+	dataMap := map[string]string{
+		"sym":  data.Symbols,
+		"bal":  data.Balances,
+		"deci": data.Decimals,
+		"addr": data.Addresses,
 	}
 
-	err = prefixdb.Put(ctx, []byte("bal"), []byte(voucherBalanceList))
-	if err != nil {
-		return res, nil
+	for key, value := range dataMap {
+		if err := h.prefixDb.Put(ctx, []byte(key), []byte(value)); err != nil {
+			return res, nil
+		}
 	}
 
 	return res, nil
 }
 
-// ProcessVouchers formats the holdings into symbol and balance lists.
-func ProcessVouchers(holdings []struct {
-	ContractAddress string `json:"contractAddress"`
-	TokenSymbol     string `json:"tokenSymbol"`
-	TokenDecimals   string `json:"tokenDecimals"`
-	Balance         string `json:"balance"`
-}) (string, string) {
-	var numberedSymbols, numberedBalances []string
-
-	for i, voucher := range holdings {
-		numberedSymbols = append(numberedSymbols, fmt.Sprintf("%d:%s", i+1, voucher.TokenSymbol))
-		numberedBalances = append(numberedBalances, fmt.Sprintf("%d:%s", i+1, voucher.Balance))
-	}
-
-	voucherSymbolList := strings.Join(numberedSymbols, "\n")
-	voucherBalanceList := strings.Join(numberedBalances, "\n")
-
-	return voucherSymbolList, voucherBalanceList
-}
-
 // GetVoucherList fetches the list of vouchers and formats them
 func (h *Handlers) GetVoucherList(ctx context.Context, sym string, input []byte) (resource.Result, error) {
 	var res resource.Result
 
 	// Read vouchers from the store
-	store := h.userdataStore
-	prefixdb := storage.NewSubPrefixDb(store, []byte("vouchers"))
-
-	voucherData, err := prefixdb.Get(ctx, []byte("sym"))
+	voucherData, err := h.prefixDb.Get(ctx, []byte("sym"))
 	if err != nil {
-		return res, nil
+		return res, err
 	}
 
 	res.Content = string(voucherData)
@@ -1154,8 +1198,6 @@ func (h *Handlers) GetVoucherList(ctx context.Context, sym string, input []byte)
 // ViewVoucher retrieves the token holding and balance from the subprefixDB
 func (h *Handlers) ViewVoucher(ctx context.Context, sym string, input []byte) (resource.Result, error) {
 	var res resource.Result
-	store := h.userdataStore
-
 	sessionId, ok := ctx.Value("SessionId").(string)
 	if !ok {
 		return res, fmt.Errorf("missing session")
@@ -1164,126 +1206,51 @@ func (h *Handlers) ViewVoucher(ctx context.Context, sym string, input []byte) (r
 	flag_incorrect_voucher, _ := h.flagManager.GetFlag("flag_incorrect_voucher")
 
 	inputStr := string(input)
-
 	if inputStr == "0" || inputStr == "99" {
 		res.FlagReset = append(res.FlagReset, flag_incorrect_voucher)
 		return res, nil
 	}
 
-	prefixdb := storage.NewSubPrefixDb(store, []byte("vouchers"))
-
-	// Retrieve the voucher symbol list
-	voucherSymbolList, err := prefixdb.Get(ctx, []byte("sym"))
+	metadata, err := utils.GetVoucherData(ctx, h.prefixDb, inputStr)
 	if err != nil {
-		return res, fmt.Errorf("failed to retrieve voucher symbol list: %v", err)
+		return res, fmt.Errorf("failed to retrieve voucher data: %v", err)
 	}
 
-	// Retrieve the voucher balance list
-	voucherBalanceList, err := prefixdb.Get(ctx, []byte("bal"))
-	if err != nil {
-		return res, fmt.Errorf("failed to retrieve voucher balance list: %v", err)
-	}
-
-	// match the voucher symbol and balance with the input
-	matchedSymbol, matchedBalance := MatchVoucher(inputStr, string(voucherSymbolList), string(voucherBalanceList))
-
-	// If a match is found, write the temporary sym and balance
-	if matchedSymbol != "" && matchedBalance != "" {
-		err = store.WriteEntry(ctx, sessionId, utils.DATA_TEMPORARY_SYM, []byte(matchedSymbol))
-		if err != nil {
-			return res, err
-		}
-		err = store.WriteEntry(ctx, sessionId, utils.DATA_TEMPORARY_BAL, []byte(matchedBalance))
-		if err != nil {
-			return res, err
-		}
-
-		res.FlagReset = append(res.FlagReset, flag_incorrect_voucher)
-		res.Content = fmt.Sprintf("%s\n%s", matchedSymbol, matchedBalance)
-	} else {
+	if metadata == nil {
 		res.FlagSet = append(res.FlagSet, flag_incorrect_voucher)
+		return res, nil
 	}
 
+	if err := utils.StoreTemporaryVoucher(ctx, h.userdataStore, sessionId, metadata); err != nil {
+		return res, err
+	}
+
+	res.FlagReset = append(res.FlagReset, flag_incorrect_voucher)
+	res.Content = fmt.Sprintf("%s\n%s", metadata.TokenSymbol, metadata.Balance)
+
 	return res, nil
 }
 
-// MatchVoucher finds the matching voucher symbol and balance based on the input.
-func MatchVoucher(inputStr string, voucherSymbols, voucherBalances string) (string, string) {
-	// Split the lists into slices for processing
-	symbols := strings.Split(voucherSymbols, "\n")
-	balances := strings.Split(voucherBalances, "\n")
-
-	var matchedSymbol, matchedBalance string
-
-	for i, symbol := range symbols {
-		symbolParts := strings.SplitN(symbol, ":", 2)
-		if len(symbolParts) != 2 {
-			continue
-		}
-		voucherNum := symbolParts[0]
-		voucherSymbol := symbolParts[1]
-
-		// Check if input matches either the number or the symbol
-		if inputStr == voucherNum || strings.EqualFold(inputStr, voucherSymbol) {
-			matchedSymbol = voucherSymbol
-			// Ensure there's a corresponding balance
-			if i < len(balances) {
-				matchedBalance = strings.SplitN(balances[i], ":", 2)[1]
-			}
-			break
-		}
-	}
-
-	return matchedSymbol, matchedBalance
-}
-
-// SetVoucher retrieves the temporary sym and balance,
-// sets them as the active data and
-// clears the temporary data
+// SetVoucher retrieves the temp voucher data and sets it as the active data
 func (h *Handlers) SetVoucher(ctx context.Context, sym string, input []byte) (resource.Result, error) {
 	var res resource.Result
-	var err error
-	store := h.userdataStore
 
 	sessionId, ok := ctx.Value("SessionId").(string)
 	if !ok {
 		return res, fmt.Errorf("missing session")
 	}
 
-	// get the current temporary symbol
-	temporarySym, err := store.ReadEntry(ctx, sessionId, utils.DATA_TEMPORARY_SYM)
-	if err != nil {
-		return res, err
-	}
-	// get the current temporary balance
-	temporaryBal, err := store.ReadEntry(ctx, sessionId, utils.DATA_TEMPORARY_BAL)
+	// Get temporary data
+	tempData, err := utils.GetTemporaryVoucherData(ctx, h.userdataStore, sessionId)
 	if err != nil {
 		return res, err
 	}
 
-	// set the active symbol
-	err = store.WriteEntry(ctx, sessionId, utils.DATA_ACTIVE_SYM, []byte(temporarySym))
-	if err != nil {
-		return res, err
-	}
-	// set the active balance
-	err = store.WriteEntry(ctx, sessionId, utils.DATA_ACTIVE_BAL, []byte(temporaryBal))
-	if err != nil {
+	// Set as active and clear temporary data
+	if err := utils.UpdateVoucherData(ctx, h.userdataStore, sessionId, tempData); err != nil {
 		return res, err
 	}
 
-	// reset the temporary symbol
-	err = store.WriteEntry(ctx, sessionId, utils.DATA_TEMPORARY_SYM, []byte(""))
-	if err != nil {
-		return res, err
-	}
-	// reset the temporary balance
-	err = store.WriteEntry(ctx, sessionId, utils.DATA_TEMPORARY_BAL, []byte(""))
-	if err != nil {
-		return res, err
-	}
-
-	res.Content = string(temporarySym)
-
+	res.Content = tempData.TokenSymbol
 	return res, nil
 }

internal/handlers/ussd/menuhandler_test.go

@@ -15,14 +15,18 @@ import (
 	"git.defalsify.org/vise.git/persist"
 	"git.defalsify.org/vise.git/resource"
 	"git.defalsify.org/vise.git/state"
-	"git.grassecon.net/urdt/ussd/internal/handlers/server"
-	"git.grassecon.net/urdt/ussd/internal/mocks"
 	"git.grassecon.net/urdt/ussd/internal/models"
+	"git.grassecon.net/urdt/ussd/internal/testutil/mocks"
+	"git.grassecon.net/urdt/ussd/internal/testutil/testservice"
+
+	"git.grassecon.net/urdt/ussd/common"
 	"git.grassecon.net/urdt/ussd/internal/utils"
 	"github.com/alecthomas/assert/v2"
 	"github.com/grassrootseconomics/eth-custodial/pkg/api"
 	testdataloader "github.com/peteole/testdata-loader"
 	"github.com/stretchr/testify/require"
+
+	dataserviceapi "github.com/grassrootseconomics/ussd-data-service/pkg/api"
 )
 
 var (
@@ -32,7 +36,7 @@ var (
 
 func TestNewHandlers(t *testing.T) {
 	fm, err := NewFlagManager(flagsPath)
-	accountService := server.TestAccountService{}
+	accountService := testservice.TestAccountService{}
 	if err != nil {
 		t.Logf(err.Error())
 	}
@@ -95,7 +99,7 @@ func TestCreateAccount(t *testing.T) {
 				Description: "Account creation successed",
 				Result: map[string]any{
 					"trackingId": "1234567890",
-					"publicKey":  "1235QERYU",
+					"publicKey":  "0xD3adB33f",
 				},
 			},
 			expectedResult: resource.Result{
@@ -116,9 +120,10 @@ func TestCreateAccount(t *testing.T) {
 				flagManager:    fm.parser,
 			}
 
+			publicKey := tt.serverResponse.Result["publicKey"].(string)
 			data := map[utils.DataTyp]string{
 				utils.DATA_TRACKING_ID: tt.serverResponse.Result["trackingId"].(string),
-				utils.DATA_PUBLIC_KEY:  tt.serverResponse.Result["publicKey"].(string),
+				utils.DATA_PUBLIC_KEY:  publicKey,
 			}
 
 			mockDataStore.On("ReadEntry", ctx, sessionId, utils.DATA_ACCOUNT_CREATED).Return([]byte(""), notFoundErr)
@@ -127,6 +132,12 @@ func TestCreateAccount(t *testing.T) {
 			for key, value := range data {
 				mockDataStore.On("WriteEntry", ctx, sessionId, key, []byte(value)).Return(nil)
 			}
+			publicKeyNormalized, err := common.NormalizeHex(publicKey)
+			if err != nil {
+				t.Fatal(err)
+			}
+
+			mockDataStore.On("WriteEntry", ctx, publicKeyNormalized, utils.DATA_PUBLIC_KEY_REVERSE, []byte(sessionId)).Return(nil)
 
 			// Call the method you want to test
 			res, err := h.CreateAccount(ctx, "create_account", []byte("some-input"))
@@ -163,8 +174,11 @@ func TestWithPersister_PanicWhenAlreadySet(t *testing.T) {
 }
 
 func TestSaveFirstname(t *testing.T) {
-	// Create a new instance of MockMyDataStore
+	// Create new mocks
 	mockStore := new(mocks.MockUserDataStore)
+	mockState := state.NewState(16)
+
+	fm, err := NewFlagManager(flagsPath)
 
 	// Define test data
 	sessionId := "session123"
@@ -172,11 +186,13 @@ func TestSaveFirstname(t *testing.T) {
 	ctx := context.WithValue(context.Background(), "SessionId", sessionId)
 
 	// Set up the expected behavior of the mock
-	mockStore.On("WriteEntry", ctx, sessionId, utils.DATA_FIRST_NAME, []byte(firstName)).Return(nil)
+	mockStore.On("WriteEntry", ctx, sessionId, utils.DATA_TEMPORARY_VALUE, []byte(firstName)).Return(nil)
 
 	// Create the Handlers instance with the mock store
 	h := &Handlers{
 		userdataStore: mockStore,
+		flagManager:   fm.parser,
+		st:            mockState,
 	}
 
 	// Call the method
@@ -193,6 +209,9 @@ func TestSaveFirstname(t *testing.T) {
 func TestSaveFamilyname(t *testing.T) {
 	// Create a new instance of UserDataStore
 	mockStore := new(mocks.MockUserDataStore)
+	mockState := state.NewState(16)
+
+	fm, err := NewFlagManager(flagsPath)
 
 	// Define test data
 	sessionId := "session123"
@@ -200,11 +219,13 @@ func TestSaveFamilyname(t *testing.T) {
 	ctx := context.WithValue(context.Background(), "SessionId", sessionId)
 
 	// Set up the expected behavior of the mock
-	mockStore.On("WriteEntry", ctx, sessionId, utils.DATA_FAMILY_NAME, []byte(familyName)).Return(nil)
+	mockStore.On("WriteEntry", ctx, sessionId, utils.DATA_TEMPORARY_VALUE, []byte(familyName)).Return(nil)
 
 	// Create the Handlers instance with the mock store
 	h := &Handlers{
 		userdataStore: mockStore,
+		st:            mockState,
+		flagManager:   fm.parser,
 	}
 
 	// Call the method
@@ -260,7 +281,7 @@ func TestSaveTemporaryPin(t *testing.T) {
 		t.Run(tt.name, func(t *testing.T) {
 
 			// Set up the expected behavior of the mock
-			mockStore.On("WriteEntry", ctx, sessionId, utils.DATA_TEMPORARY_PIN, []byte(tt.input)).Return(nil)
+			mockStore.On("WriteEntry", ctx, sessionId, utils.DATA_TEMPORARY_VALUE, []byte(tt.input)).Return(nil)
 
 			// Call the method
 			res, err := h.SaveTemporaryPin(ctx, "save_pin", tt.input)
@@ -277,8 +298,11 @@ func TestSaveTemporaryPin(t *testing.T) {
 }
 
 func TestSaveYoB(t *testing.T) {
-	// Create a new instance of MockMyDataStore
+	// Create  new instances
 	mockStore := new(mocks.MockUserDataStore)
+	mockState := state.NewState(16)
+
+	fm, err := NewFlagManager(flagsPath)
 
 	// Define test data
 	sessionId := "session123"
@@ -286,11 +310,13 @@ func TestSaveYoB(t *testing.T) {
 	ctx := context.WithValue(context.Background(), "SessionId", sessionId)
 
 	// Set up the expected behavior of the mock
-	mockStore.On("WriteEntry", ctx, sessionId, utils.DATA_YOB, []byte(yob)).Return(nil)
+	mockStore.On("WriteEntry", ctx, sessionId, utils.DATA_TEMPORARY_VALUE, []byte(yob)).Return(nil)
 
 	// Create the Handlers instance with the mock store
 	h := &Handlers{
 		userdataStore: mockStore,
+		st:            mockState,
+		flagManager:   fm.parser,
 	}
 
 	// Call the method
@@ -307,6 +333,9 @@ func TestSaveYoB(t *testing.T) {
 func TestSaveLocation(t *testing.T) {
 	// Create a new instance of MockMyDataStore
 	mockStore := new(mocks.MockUserDataStore)
+	mockState := state.NewState(16)
+
+	fm, err := NewFlagManager(flagsPath)
 
 	// Define test data
 	sessionId := "session123"
@@ -314,11 +343,13 @@ func TestSaveLocation(t *testing.T) {
 	ctx := context.WithValue(context.Background(), "SessionId", sessionId)
 
 	// Set up the expected behavior of the mock
-	mockStore.On("WriteEntry", ctx, sessionId, utils.DATA_LOCATION, []byte(yob)).Return(nil)
+	mockStore.On("WriteEntry", ctx, sessionId, utils.DATA_TEMPORARY_VALUE, []byte(yob)).Return(nil)
 
 	// Create the Handlers instance with the mock store
 	h := &Handlers{
 		userdataStore: mockStore,
+		st:            mockState,
+		flagManager:   fm.parser,
 	}
 
 	// Call the method
@@ -335,6 +366,9 @@ func TestSaveLocation(t *testing.T) {
 func TestSaveOfferings(t *testing.T) {
 	// Create a new instance of MockUserDataStore
 	mockStore := new(mocks.MockUserDataStore)
+	mockState := state.NewState(16)
+
+	fm, err := NewFlagManager(flagsPath)
 
 	// Define test data
 	sessionId := "session123"
@@ -342,11 +376,13 @@ func TestSaveOfferings(t *testing.T) {
 	ctx := context.WithValue(context.Background(), "SessionId", sessionId)
 
 	// Set up the expected behavior of the mock
-	mockStore.On("WriteEntry", ctx, sessionId, utils.DATA_OFFERINGS, []byte(offerings)).Return(nil)
+	mockStore.On("WriteEntry", ctx, sessionId, utils.DATA_TEMPORARY_VALUE, []byte(offerings)).Return(nil)
 
 	// Create the Handlers instance with the mock store
 	h := &Handlers{
 		userdataStore: mockStore,
+		st:            mockState,
+		flagManager:   fm.parser,
 	}
 
 	// Call the method
@@ -361,10 +397,12 @@ func TestSaveOfferings(t *testing.T) {
 }
 
 func TestSaveGender(t *testing.T) {
-	// Create a new instance of MockMyDataStore
+	// Create a new mock instances
 	mockStore := new(mocks.MockUserDataStore)
 	mockState := state.NewState(16)
 
+	fm, _ := NewFlagManager(flagsPath)
+
 	// Define the session ID and context
 	sessionId := "session123"
 	ctx := context.WithValue(context.Background(), "SessionId", sessionId)
@@ -404,16 +442,17 @@ func TestSaveGender(t *testing.T) {
 		t.Run(tt.name, func(t *testing.T) {
 			// Set up expectations for the mock database
 			if tt.expectCall {
-				expectedKey := utils.DATA_GENDER
+				expectedKey := utils.DATA_TEMPORARY_VALUE
 				mockStore.On("WriteEntry", ctx, sessionId, expectedKey, []byte(tt.expectedGender)).Return(nil)
 			} else {
-				mockStore.On("WriteEntry", ctx, sessionId, utils.DATA_GENDER, []byte(tt.expectedGender)).Return(nil)
+				mockStore.On("WriteEntry", ctx, sessionId, utils.DATA_TEMPORARY_VALUE, []byte(tt.expectedGender)).Return(nil)
 			}
 			mockState.ExecPath = append(mockState.ExecPath, tt.executingSymbol)
 			// Create the Handlers instance with the mock store
 			h := &Handlers{
 				userdataStore: mockStore,
 				st:            mockState,
+				flagManager:   fm.parser,
 			}
 
 			// Call the method
@@ -424,9 +463,9 @@ func TestSaveGender(t *testing.T) {
 
 			// Verify expectations
 			if tt.expectCall {
-				mockStore.AssertCalled(t, "WriteEntry", ctx, sessionId, utils.DATA_GENDER, []byte(tt.expectedGender))
+				mockStore.AssertCalled(t, "WriteEntry", ctx, sessionId, utils.DATA_TEMPORARY_VALUE, []byte(tt.expectedGender))
 			} else {
-				mockStore.AssertNotCalled(t, "WriteEntry", ctx, sessionId, utils.DATA_GENDER, []byte(tt.expectedGender))
+				mockStore.AssertNotCalled(t, "WriteEntry", ctx, sessionId, utils.DATA_TEMPORARY_VALUE, []byte(tt.expectedGender))
 			}
 		})
 	}
@@ -1002,7 +1041,7 @@ func TestVerifyCreatePin(t *testing.T) {
 		},
 	}
 
-	typ := utils.DATA_TEMPORARY_PIN
+	typ := utils.DATA_TEMPORARY_VALUE
 
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
@@ -1480,8 +1519,8 @@ func TestValidateAmount(t *testing.T) {
 			},
 		},
 		{
-			name:    "Test with invalid amount format",
-			input:   []byte("0.02ms"),
+			name:      "Test with invalid amount format",
+			input:     []byte("0.02ms"),
 			activeBal: []byte("5"),
 			expectedResult: resource.Result{
 				FlagSet: []uint32{flag_invalid_amount},
@@ -1795,7 +1834,7 @@ func TestConfirmPin(t *testing.T) {
 			// Set up the expected behavior of the mock
 			mockDataStore.On("WriteEntry", ctx, sessionId, utils.DATA_ACCOUNT_PIN, []byte(tt.temporarypin)).Return(nil)
 
-			mockDataStore.On("ReadEntry", ctx, sessionId, utils.DATA_TEMPORARY_PIN).Return(tt.temporarypin, nil)
+			mockDataStore.On("ReadEntry", ctx, sessionId, utils.DATA_TEMPORARY_VALUE).Return(tt.temporarypin, nil)
 
 			//Call the function under test
 			res, _ := h.ConfirmPinChange(ctx, "confirm_pin_change", tt.temporarypin)
@@ -1810,40 +1849,6 @@ func TestConfirmPin(t *testing.T) {
 	}
 }
 
-func TestSetVoucher(t *testing.T) {
-	mockDataStore := new(mocks.MockUserDataStore)
-
-	sessionId := "session123"
-	ctx := context.WithValue(context.Background(), "SessionId", sessionId)
-
-	temporarySym := []byte("tempSym")
-	temporaryBal := []byte("tempBal")
-
-	// Set expectations for the mock data store
-	mockDataStore.On("ReadEntry", ctx, sessionId, utils.DATA_TEMPORARY_SYM).Return(temporarySym, nil)
-	mockDataStore.On("ReadEntry", ctx, sessionId, utils.DATA_TEMPORARY_BAL).Return(temporaryBal, nil)
-	mockDataStore.On("WriteEntry", ctx, sessionId, utils.DATA_ACTIVE_SYM, temporarySym).Return(nil)
-	mockDataStore.On("WriteEntry", ctx, sessionId, utils.DATA_ACTIVE_BAL, temporaryBal).Return(nil)
-	mockDataStore.On("WriteEntry", ctx, sessionId, utils.DATA_TEMPORARY_SYM, []byte("")).Return(nil)
-	mockDataStore.On("WriteEntry", ctx, sessionId, utils.DATA_TEMPORARY_BAL, []byte("")).Return(nil)
-
-	h := &Handlers{
-		userdataStore: mockDataStore,
-	}
-
-	// Call the method under test
-	res, err := h.SetVoucher(ctx, "someSym", []byte{})
-
-	// Assert that no errors occurred
-	assert.NoError(t, err)
-
-	// Assert that the result content is correct
-	assert.Equal(t, string(temporarySym), res.Content)
-
-	// Assert that expectations were met
-	mockDataStore.AssertExpectations(t)
-}
-
 func TestFetchCustodialBalances(t *testing.T) {
 	fm, err := NewFlagManager(flagsPath)
 	if err != nil {
@@ -1925,3 +1930,235 @@ func TestFetchCustodialBalances(t *testing.T) {
 		})
 	}
 }
+
+func TestSetDefaultVoucher(t *testing.T) {
+	fm, err := NewFlagManager(flagsPath)
+	if err != nil {
+		t.Logf(err.Error())
+	}
+	flag_no_active_voucher, err := fm.GetFlag("flag_no_active_voucher")
+	if err != nil {
+		t.Logf(err.Error())
+	}
+	// Define session ID and mock data
+	sessionId := "session123"
+	publicKey := "0X13242618721"
+	notFoundErr := db.ErrNotFound{}
+	ctx := context.WithValue(context.Background(), "SessionId", sessionId)
+
+	tests := []struct {
+		name           string
+		vouchersResp   *models.VoucherHoldingResponse
+		expectedResult resource.Result
+	}{
+		{
+			name: "Test set default voucher when no active voucher exists",
+			vouchersResp: &models.VoucherHoldingResponse{
+				Ok:          true,
+				Description: "Vouchers fetched successfully",
+				Result: models.VoucherResult{
+					Holdings: []dataserviceapi.TokenHoldings{
+						{
+							ContractAddress: "0x123",
+							TokenSymbol:     "TOKEN1",
+							TokenDecimals:   "18",
+							Balance:         "100",
+						},
+					},
+				},
+			},
+			expectedResult: resource.Result{},
+		},
+		{
+			name: "Test no vouchers available",
+			vouchersResp: &models.VoucherHoldingResponse{
+				Ok:          true,
+				Description: "No vouchers available",
+				Result: models.VoucherResult{
+					Holdings: []dataserviceapi.TokenHoldings{},
+				},
+			},
+			expectedResult: resource.Result{
+				FlagSet: []uint32{flag_no_active_voucher},
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			mockDataStore := new(mocks.MockUserDataStore)
+			mockAccountService := new(mocks.MockAccountService)
+
+			h := &Handlers{
+				userdataStore:  mockDataStore,
+				accountService: mockAccountService,
+				flagManager:    fm.parser,
+			}
+
+			mockDataStore.On("ReadEntry", ctx, sessionId, utils.DATA_ACTIVE_SYM).Return([]byte(""), notFoundErr)
+			mockDataStore.On("ReadEntry", ctx, sessionId, utils.DATA_PUBLIC_KEY).Return([]byte(publicKey), nil)
+
+			mockAccountService.On("FetchVouchers", string(publicKey)).Return(tt.vouchersResp, nil)
+
+			if len(tt.vouchersResp.Result.Holdings) > 0 {
+				firstVoucher := tt.vouchersResp.Result.Holdings[0]
+				mockDataStore.On("WriteEntry", ctx, sessionId, utils.DATA_ACTIVE_SYM, []byte(firstVoucher.TokenSymbol)).Return(nil)
+				mockDataStore.On("WriteEntry", ctx, sessionId, utils.DATA_ACTIVE_BAL, []byte(firstVoucher.Balance)).Return(nil)
+			}
+
+			res, err := h.SetDefaultVoucher(ctx, "set_default_voucher", []byte("some-input"))
+
+			assert.NoError(t, err)
+
+			assert.Equal(t, res, tt.expectedResult, "Expected result should be equal to the actual result")
+
+			mockDataStore.AssertExpectations(t)
+			mockAccountService.AssertExpectations(t)
+		})
+	}
+}
+
+func TestCheckVouchers(t *testing.T) {
+	mockDataStore := new(mocks.MockUserDataStore)
+	mockAccountService := new(mocks.MockAccountService)
+	mockSubPrefixDb := new(mocks.MockSubPrefixDb)
+
+	sessionId := "session123"
+	publicKey := "0X13242618721"
+
+	h := &Handlers{
+		userdataStore:  mockDataStore,
+		accountService: mockAccountService,
+		prefixDb:       mockSubPrefixDb,
+	}
+
+	ctx := context.WithValue(context.Background(), "SessionId", sessionId)
+
+	mockDataStore.On("ReadEntry", ctx, sessionId, utils.DATA_PUBLIC_KEY).Return([]byte(publicKey), nil)
+
+	mockVouchersResponse := &models.VoucherHoldingResponse{}
+	mockVouchersResponse.Result.Holdings = []dataserviceapi.TokenHoldings{
+		{ContractAddress: "0xd4c288865Ce", TokenSymbol: "SRF", TokenDecimals: "6", Balance: "100"},
+		{ContractAddress: "0x41c188d63Qa", TokenSymbol: "MILO", TokenDecimals: "4", Balance: "200"},
+	}
+
+	mockAccountService.On("FetchVouchers", string(publicKey)).Return(mockVouchersResponse, nil)
+
+	mockSubPrefixDb.On("Put", ctx, []byte("sym"), []byte("1:SRF\n2:MILO")).Return(nil)
+	mockSubPrefixDb.On("Put", ctx, []byte("bal"), []byte("1:100\n2:200")).Return(nil)
+	mockSubPrefixDb.On("Put", ctx, []byte("deci"), []byte("1:6\n2:4")).Return(nil)
+	mockSubPrefixDb.On("Put", ctx, []byte("addr"), []byte("1:0xd4c288865Ce\n2:0x41c188d63Qa")).Return(nil)
+
+	_, err := h.CheckVouchers(ctx, "check_vouchers", []byte(""))
+
+	assert.NoError(t, err)
+
+	mockDataStore.AssertExpectations(t)
+	mockAccountService.AssertExpectations(t)
+}
+
+func TestGetVoucherList(t *testing.T) {
+	mockSubPrefixDb := new(mocks.MockSubPrefixDb)
+
+	sessionId := "session123"
+	ctx := context.WithValue(context.Background(), "SessionId", sessionId)
+
+	h := &Handlers{
+		prefixDb: mockSubPrefixDb,
+	}
+
+	mockSubPrefixDb.On("Get", ctx, []byte("sym")).Return([]byte("1:SRF\n2:MILO"), nil)
+
+	res, err := h.GetVoucherList(ctx, "", []byte(""))
+	assert.NoError(t, err)
+	assert.Contains(t, res.Content, "1:SRF\n2:MILO")
+
+	mockSubPrefixDb.AssertExpectations(t)
+}
+
+func TestViewVoucher(t *testing.T) {
+	fm, err := NewFlagManager(flagsPath)
+	if err != nil {
+		t.Logf(err.Error())
+	}
+	mockDataStore := new(mocks.MockUserDataStore)
+	mockSubPrefixDb := new(mocks.MockSubPrefixDb)
+
+	sessionId := "session123"
+	ctx := context.WithValue(context.Background(), "SessionId", sessionId)
+
+	h := &Handlers{
+		userdataStore: mockDataStore,
+		flagManager:   fm.parser,
+		prefixDb:      mockSubPrefixDb,
+	}
+
+	// Define mock voucher data
+	mockVoucherData := map[string]string{
+		"sym":  "1:SRF",
+		"bal":  "1:100",
+		"deci": "1:6",
+		"addr": "1:0xd4c288865Ce",
+	}
+
+	for key, value := range mockVoucherData {
+		mockSubPrefixDb.On("Get", ctx, []byte(key)).Return([]byte(value), nil)
+	}
+
+	// Set up expectations for mockDataStore
+	expectedData := fmt.Sprintf("%s,%s,%s,%s", "SRF", "100", "6", "0xd4c288865Ce")
+
+	mockDataStore.On("WriteEntry", ctx, sessionId, utils.DATA_TEMPORARY_VALUE, []byte(expectedData)).Return(nil)
+
+	res, err := h.ViewVoucher(ctx, "view_voucher", []byte("1"))
+	assert.NoError(t, err)
+	assert.Contains(t, res.Content, "SRF\n100")
+
+	mockDataStore.AssertExpectations(t)
+	mockSubPrefixDb.AssertExpectations(t)
+}
+
+func TestSetVoucher(t *testing.T) {
+	mockDataStore := new(mocks.MockUserDataStore)
+
+	sessionId := "session123"
+	ctx := context.WithValue(context.Background(), "SessionId", sessionId)
+
+	// Define the temporary voucher data
+	tempData := &dataserviceapi.TokenHoldings{
+		TokenSymbol:     "SRF",
+		Balance:         "200",
+		TokenDecimals:   "6",
+		ContractAddress: "0xd4c288865Ce0985a481Eef3be02443dF5E2e4Ea9",
+	}
+
+	expectedData := fmt.Sprintf("%s,%s,%s,%s", "SRF", "200", "6", "0xd4c288865Ce0985a481Eef3be02443dF5E2e4Ea9")
+
+	// Define the expected active entries
+	activeEntries := map[utils.DataTyp][]byte{
+		utils.DATA_ACTIVE_SYM:     []byte(tempData.TokenSymbol),
+		utils.DATA_ACTIVE_BAL:     []byte(tempData.Balance),
+		utils.DATA_ACTIVE_DECIMAL: []byte(tempData.TokenDecimals),
+		utils.DATA_ACTIVE_ADDRESS: []byte(tempData.ContractAddress),
+	}
+
+	// Mocking ReadEntry calls for temporary data retrieval
+	mockDataStore.On("ReadEntry", ctx, sessionId, utils.DATA_TEMPORARY_VALUE).Return([]byte(expectedData), nil)
+
+	// Mocking WriteEntry calls for setting active data
+	for key, value := range activeEntries {
+		mockDataStore.On("WriteEntry", ctx, sessionId, key, value).Return(nil)
+	}
+
+	h := &Handlers{
+		userdataStore: mockDataStore,
+	}
+
+	res, err := h.SetVoucher(ctx, "someSym", []byte{})
+
+	assert.NoError(t, err)
+
+	assert.Equal(t, string(tempData.TokenSymbol), res.Content)
+
+	mockDataStore.AssertExpectations(t)
+}

internal/http/http_test.go

@@ -13,7 +13,7 @@ import (
 
 	"git.defalsify.org/vise.git/engine"
 	"git.grassecon.net/urdt/ussd/internal/handlers"
-	"git.grassecon.net/urdt/ussd/internal/mocks/httpmocks"
+	"git.grassecon.net/urdt/ussd/internal/testutil/mocks/httpmocks"
 )
 
 // invalidRequestType is a custom type to test invalid request scenarios

internal/models/vouchersresponse.go

@@ -1,15 +1,14 @@
 package models
 
-// VoucherHoldingResponse represents a single voucher holding
+import dataserviceapi "github.com/grassrootseconomics/ussd-data-service/pkg/api"
+
 type VoucherHoldingResponse struct {
-	Ok          bool   `json:"ok"`
-	Description string `json:"description"`
-	Result      struct {
-		Holdings []struct {
-			ContractAddress string `json:"contractAddress"`
-			TokenSymbol     string `json:"tokenSymbol"`
-			TokenDecimals   string `json:"tokenDecimals"`
-			Balance         string `json:"balance"`
-		} `json:"holdings"`
-	} `json:"result"`
+	Ok          bool          `json:"ok"`
+	Description string        `json:"description"`
+	Result      VoucherResult `json:"result"`
+}
+
+// VoucherResult holds the list of token holdings
+type VoucherResult struct {
+	Holdings []dataserviceapi.TokenHoldings `json:"holdings"`
 }

internal/storage/db.go

@@ -10,6 +10,14 @@ const (
 	DATATYPE_USERSUB = 64
 )
 
+// PrefixDb interface abstracts the database operations.
+type PrefixDb interface {
+	Get(ctx context.Context, key []byte) ([]byte, error)
+	Put(ctx context.Context, key []byte, val []byte) error
+}
+
+var _ PrefixDb = (*SubPrefixDb)(nil)
+
 type SubPrefixDb struct {
 	store db.Db
 	pfx   []byte
@@ -29,11 +37,7 @@ func (s *SubPrefixDb) toKey(k []byte) []byte {
 func (s *SubPrefixDb) Get(ctx context.Context, key []byte) ([]byte, error) {
 	s.store.SetPrefix(DATATYPE_USERSUB)
 	key = s.toKey(key)
-	v, err := s.store.Get(ctx, key)
-	if err != nil {
-		return nil, err
-	}
-	return v, nil
+	return s.store.Get(ctx, key)
 }
 
 func (s *SubPrefixDb) Put(ctx context.Context, key []byte, val []byte) error {

internal/testutil/TestEngine.go

@@ -13,6 +13,8 @@ import (
 	"git.grassecon.net/urdt/ussd/internal/handlers"
 	"git.grassecon.net/urdt/ussd/internal/handlers/server"
 	"git.grassecon.net/urdt/ussd/internal/storage"
+	"git.grassecon.net/urdt/ussd/internal/testutil/testservice"
+	"git.grassecon.net/urdt/ussd/internal/testutil/testtag"
 	testdataloader "github.com/peteole/testdata-loader"
 )
 
@@ -80,12 +82,12 @@ func TestEngine(sessionId string) (engine.Engine, func(), chan bool) {
 		os.Exit(1)
 	}
 
-	if AccountService == nil {
-		AccountService = &server.AccountService{}
+	if testtag.AccountService == nil {
+		testtag.AccountService = &server.AccountService{}
 	}
 
-	switch AccountService.(type) {
-	case *server.TestAccountService:
+	switch testtag.AccountService.(type) {
+	case *testservice.TestAccountService:
 		go func() {
 			eventChannel <- false
 		}()
@@ -98,7 +100,7 @@ func TestEngine(sessionId string) (engine.Engine, func(), chan bool) {
 		panic("Unknown account service type")
 	}
 
-	hl, err := lhs.GetHandler(AccountService)
+	hl, err := lhs.GetHandler(testtag.AccountService)
 	if err != nil {
 		fmt.Fprintf(os.Stderr, err.Error())
 		os.Exit(1)

internal/testutil/mocks/subprefixdbmock.go

@@ -0,0 +1,21 @@
+package mocks
+
+import (
+	"context"
+
+	"github.com/stretchr/testify/mock"
+)
+
+type MockSubPrefixDb struct {
+	mock.Mock
+}
+
+func (m *MockSubPrefixDb) Get(ctx context.Context, key []byte) ([]byte, error) {
+	args := m.Called(ctx, key)
+	return args.Get(0).([]byte), args.Error(1)
+}
+
+func (m *MockSubPrefixDb) Put(ctx context.Context, key, val []byte) error {
+	args := m.Called(ctx, key, val)
+	return args.Error(0)
+}

internal/testutil/offlinetest.go

@@ -1,11 +0,0 @@
-// +build !online
-
-package testutil
-
-import (
-	"git.grassecon.net/urdt/ussd/internal/handlers/server"
-)
-
-var (
-	AccountService server.AccountServiceInterface = &server.TestAccountService{}
-)

internal/testutil/testservice/TestAccountService.go

@@ -0,0 +1,90 @@
+package testservice
+
+import (
+	"context"
+	"encoding/json"
+	"time"
+
+	"git.grassecon.net/urdt/ussd/internal/models"
+	"github.com/grassrootseconomics/eth-custodial/pkg/api"
+	dataserviceapi "github.com/grassrootseconomics/ussd-data-service/pkg/api"
+)
+
+type TestAccountService struct {
+}
+
+func (tas *TestAccountService) CreateAccount(ctx context.Context) (*api.OKResponse, error) {
+	return &api.OKResponse{
+		Ok:          true,
+		Description: "Account creation succeeded",
+		Result: map[string]any{
+			"trackingId": "075ccc86-f6ef-4d33-97d5-e91cfb37aa0d",
+			"publicKey":  "0x623EFAFa8868df4B934dd12a8B26CB3Dd75A7AdD",
+		},
+	}, nil
+}
+
+func (tas *TestAccountService) CheckBalance(ctx context.Context, publicKey string) (*models.BalanceResponse, error) {
+	balanceResponse := &models.BalanceResponse{
+		Ok: true,
+		Result: struct {
+			Balance string      `json:"balance"`
+			Nonce   json.Number `json:"nonce"`
+		}{
+			Balance: "0.003 CELO",
+			Nonce:   json.Number("0"),
+		},
+	}
+
+	return balanceResponse, nil
+}
+
+func (tas *TestAccountService) CheckAccountStatus(ctx context.Context, trackingId string) (*models.TrackStatusResponse, error) {
+	trackResponse := &models.TrackStatusResponse{
+		Ok: true,
+		Result: struct {
+			Transaction struct {
+				CreatedAt     time.Time   "json:\"createdAt\""
+				Status        string      "json:\"status\""
+				TransferValue json.Number "json:\"transferValue\""
+				TxHash        string      "json:\"txHash\""
+				TxType        string      "json:\"txType\""
+			}
+		}{
+			Transaction: models.Transaction{
+				CreatedAt:     time.Now(),
+				Status:        "SUCCESS",
+				TransferValue: json.Number("0.5"),
+				TxHash:        "0x123abc456def",
+				TxType:        "transfer",
+			},
+		},
+	}
+	return trackResponse, nil
+}
+
+func (tas *TestAccountService) TrackAccountStatus(ctx context.Context, publicKey string) (*api.OKResponse, error) {
+	return &api.OKResponse{
+		Ok:          true,
+		Description: "Account creation succeeded",
+		Result: map[string]any{
+			"active": true,
+		},
+	}, nil
+}
+
+func (tas *TestAccountService) FetchVouchers(ctx context.Context, publicKey string) (*models.VoucherHoldingResponse, error) {
+	return &models.VoucherHoldingResponse{
+		Ok: true,
+		Result: models.VoucherResult{
+			Holdings: []dataserviceapi.TokenHoldings{
+				{
+					ContractAddress: "0x6CC75A06ac72eB4Db2eE22F781F5D100d8ec03ee",
+					TokenSymbol:     "SRF",
+					TokenDecimals:   "6",
+					Balance:         "2745987",
+				},
+			},
+		},
+	}, nil
+}

internal/testutil/testtag/offlinetest.go

@@ -0,0 +1,12 @@
+// +build !online
+
+package testtag
+
+import (
+	"git.grassecon.net/urdt/ussd/internal/handlers/server"
+	accountservice "git.grassecon.net/urdt/ussd/internal/testutil/testservice"
+)
+
+var (
+	AccountService server.AccountServiceInterface = &accountservice.TestAccountService{}
+)

internal/testutil/testtag/onlinetest.go

@@ -1,6 +1,6 @@
 // +build online
 
-package testutil
+package testtag
 
 import "git.grassecon.net/urdt/ussd/internal/handlers/server"
 

internal/utils/db.go

@@ -22,13 +22,14 @@ const (
 	DATA_OFFERINGS
 	DATA_RECIPIENT
 	DATA_AMOUNT
-	DATA_TEMPORARY_PIN
+	DATA_TEMPORARY_VALUE
 	DATA_VOUCHER_LIST
-	DATA_TEMPORARY_SYM
 	DATA_ACTIVE_SYM
-	DATA_TEMPORARY_BAL
 	DATA_ACTIVE_BAL
-	DATA_ADDRESS
+	DATA_PUBLIC_KEY_REVERSE
+	DATA_ACTIVE_DECIMAL
+	DATA_ACTIVE_ADDRESS
+
 )
 
 func typToBytes(typ DataTyp) []byte {

internal/utils/vouchers.go

@@ -0,0 +1,146 @@
+package utils
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"git.grassecon.net/urdt/ussd/internal/storage"
+	dataserviceapi "github.com/grassrootseconomics/ussd-data-service/pkg/api"
+)
+
+// VoucherMetadata helps organize data fields
+type VoucherMetadata struct {
+	Symbols   string
+	Balances  string
+	Decimals  string
+	Addresses string
+}
+
+// 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))
+		balances = append(balances, fmt.Sprintf("%d:%s", i+1, h.Balance))
+		decimals = append(decimals, fmt.Sprintf("%d:%s", i+1, h.TokenDecimals))
+		addresses = append(addresses, fmt.Sprintf("%d:%s", i+1, h.ContractAddress))
+	}
+
+	data.Symbols = strings.Join(symbols, "\n")
+	data.Balances = strings.Join(balances, "\n")
+	data.Decimals = strings.Join(decimals, "\n")
+	data.Addresses = strings.Join(addresses, "\n")
+
+	return data
+}
+
+// GetVoucherData retrieves and matches voucher data
+func GetVoucherData(ctx context.Context, db storage.PrefixDb, input string) (*dataserviceapi.TokenHoldings, error) {
+	keys := []string{"sym", "bal", "deci", "addr"}
+	data := make(map[string]string)
+
+	for _, key := range keys {
+		value, err := db.Get(ctx, []byte(key))
+		if err != nil {
+			return nil, fmt.Errorf("failed to get %s: %v", key, err)
+		}
+		data[key] = string(value)
+	}
+
+	symbol, balance, decimal, address := MatchVoucher(input,
+		data["sym"],
+		data["bal"],
+		data["deci"],
+		data["addr"])
+
+	if symbol == "" {
+		return nil, nil
+	}
+
+	return &dataserviceapi.TokenHoldings{
+		TokenSymbol:     string(symbol),
+		Balance:         string(balance),
+		TokenDecimals:   string(decimal),
+		ContractAddress: string(address),
+	}, nil
+}
+
+// MatchVoucher finds the matching voucher symbol, balance, decimals and contract address based on the input.
+func MatchVoucher(input, symbols, balances, decimals, addresses string) (symbol, balance, decimal, address string) {
+	symList := strings.Split(symbols, "\n")
+	balList := strings.Split(balances, "\n")
+	decList := strings.Split(decimals, "\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(balList) {
+				balance = strings.SplitN(balList[i], ":", 2)[1]
+			}
+			if i < len(decList) {
+				decimal = strings.SplitN(decList[i], ":", 2)[1]
+			}
+			if i < len(addrList) {
+				address = strings.SplitN(addrList[i], ":", 2)[1]
+			}
+			break
+		}
+	}
+	return
+}
+
+// StoreTemporaryVoucher saves voucher metadata as temporary entries in the DataStore.
+func StoreTemporaryVoucher(ctx context.Context, store DataStore, sessionId string, data *dataserviceapi.TokenHoldings) error {
+	tempData := fmt.Sprintf("%s,%s,%s,%s", data.TokenSymbol, data.Balance, data.TokenDecimals, data.ContractAddress)
+
+	if err := store.WriteEntry(ctx, sessionId, DATA_TEMPORARY_VALUE, []byte(tempData)); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// GetTemporaryVoucherData retrieves temporary voucher metadata from the DataStore.
+func GetTemporaryVoucherData(ctx context.Context, store DataStore, sessionId string) (*dataserviceapi.TokenHoldings, error) {
+	temp_data, err := store.ReadEntry(ctx, sessionId, DATA_TEMPORARY_VALUE)
+	if err != nil {
+		return nil, err
+	}
+
+	values := strings.SplitN(string(temp_data), ",", 4)
+
+	data := &dataserviceapi.TokenHoldings{}
+
+	data.TokenSymbol = values[0]
+	data.Balance = values[1]
+	data.TokenDecimals = values[2]
+	data.ContractAddress = values[3]
+
+	return data, nil
+}
+
+// UpdateVoucherData sets the active voucher data in the DataStore.
+func UpdateVoucherData(ctx context.Context, store DataStore, sessionId string, data *dataserviceapi.TokenHoldings) error {
+	// Active voucher data entries
+	activeEntries := map[DataTyp][]byte{
+		DATA_ACTIVE_SYM:     []byte(data.TokenSymbol),
+		DATA_ACTIVE_BAL:     []byte(data.Balance),
+		DATA_ACTIVE_DECIMAL: []byte(data.TokenDecimals),
+		DATA_ACTIVE_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
+}

internal/utils/vouchers_test.go

@@ -0,0 +1,198 @@
+package utils
+
+import (
+	"context"
+	"fmt"
+	"testing"
+
+	"git.grassecon.net/urdt/ussd/internal/storage"
+	"github.com/alecthomas/assert/v2"
+	"github.com/stretchr/testify/require"
+
+	memdb "git.defalsify.org/vise.git/db/mem"
+	dataserviceapi "github.com/grassrootseconomics/ussd-data-service/pkg/api"
+)
+
+// InitializeTestDb sets up and returns an in-memory database and store.
+func InitializeTestDb(t *testing.T) (context.Context, *UserDataStore) {
+	ctx := context.Background()
+
+	// Initialize memDb
+	db := memdb.NewMemDb()
+	err := db.Connect(ctx, "")
+	require.NoError(t, err, "Failed to connect to memDb")
+
+	// Create UserDataStore with memDb
+	store := &UserDataStore{Db: db}
+
+	t.Cleanup(func() {
+		db.Close() // Ensure the DB is closed after each test
+	})
+
+	return ctx, store
+}
+
+func TestMatchVoucher(t *testing.T) {
+	symbols := "1:SRF\n2:MILO"
+	balances := "1:100\n2:200"
+	decimals := "1:6\n2:4"
+	addresses := "1:0xd4c288865Ce\n2:0x41c188d63Qa"
+
+	// Test for valid voucher
+	symbol, balance, decimal, address := MatchVoucher("2", symbols, balances, decimals, addresses)
+
+	// Assertions for valid voucher
+	assert.Equal(t, "MILO", symbol)
+	assert.Equal(t, "200", balance)
+	assert.Equal(t, "4", decimal)
+	assert.Equal(t, "0x41c188d63Qa", address)
+
+	// Test for non-existent voucher
+	symbol, balance, decimal, address = MatchVoucher("3", symbols, balances, decimals, addresses)
+
+	// Assertions for non-match
+	assert.Equal(t, "", symbol)
+	assert.Equal(t, "", balance)
+	assert.Equal(t, "", decimal)
+	assert.Equal(t, "", address)
+}
+
+func TestProcessVouchers(t *testing.T) {
+	holdings := []dataserviceapi.TokenHoldings{
+		{ContractAddress: "0xd4c288865Ce", TokenSymbol: "SRF", TokenDecimals: "6", Balance: "100"},
+		{ContractAddress: "0x41c188d63Qa", TokenSymbol: "MILO", TokenDecimals: "4", Balance: "200"},
+	}
+
+	expectedResult := VoucherMetadata{
+		Symbols:   "1:SRF\n2:MILO",
+		Balances:  "1:100\n2:200",
+		Decimals:  "1:6\n2:4",
+		Addresses: "1:0xd4c288865Ce\n2:0x41c188d63Qa",
+	}
+
+	result := ProcessVouchers(holdings)
+
+	assert.Equal(t, expectedResult, result)
+}
+
+func TestGetVoucherData(t *testing.T) {
+	ctx := context.Background()
+
+	db := memdb.NewMemDb()
+	err := db.Connect(ctx, "")
+	if err != nil {
+		t.Fatal(err)
+	}
+	spdb := storage.NewSubPrefixDb(db, []byte("vouchers"))
+
+	// Test voucher data
+	mockData := map[string][]byte{
+		"sym":  []byte("1:SRF\n2:MILO"),
+		"bal":  []byte("1:100\n2:200"),
+		"deci": []byte("1:6\n2:4"),
+		"addr": []byte("1:0xd4c288865Ce\n2:0x41c188d63Qa"),
+	}
+
+	// Put the data
+	for key, value := range mockData {
+		err = spdb.Put(ctx, []byte(key), []byte(value))
+		if err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	result, err := GetVoucherData(ctx, spdb, "1")
+
+	assert.NoError(t, err)
+	assert.Equal(t, "SRF", result.TokenSymbol)
+	assert.Equal(t, "100", result.Balance)
+	assert.Equal(t, "6", result.TokenDecimals)
+	assert.Equal(t, "0xd4c288865Ce", result.ContractAddress)
+}
+
+func TestStoreTemporaryVoucher(t *testing.T) {
+	ctx, store := InitializeTestDb(t)
+	sessionId := "session123"
+
+	// Test data
+	voucherData := &dataserviceapi.TokenHoldings{
+		TokenSymbol:     "SRF",
+		Balance:         "200",
+		TokenDecimals:   "6",
+		ContractAddress: "0xd4c288865Ce0985a481Eef3be02443dF5E2e4Ea9",
+	}
+
+	// Execute the function being tested
+	err := StoreTemporaryVoucher(ctx, store, sessionId, voucherData)
+	require.NoError(t, err)
+
+	// Verify stored data
+	expectedData := fmt.Sprintf("%s,%s,%s,%s", "SRF", "200", "6", "0xd4c288865Ce0985a481Eef3be02443dF5E2e4Ea9")
+
+	storedValue, err := store.ReadEntry(ctx, sessionId, DATA_TEMPORARY_VALUE)
+	require.NoError(t, err)
+	require.Equal(t, expectedData, string(storedValue), "Mismatch for key %v", DATA_TEMPORARY_VALUE)
+
+}
+
+func TestGetTemporaryVoucherData(t *testing.T) {
+	ctx, store := InitializeTestDb(t)
+	sessionId := "session123"
+
+	// Test voucher data
+	tempData := &dataserviceapi.TokenHoldings{
+		TokenSymbol:     "SRF",
+		Balance:         "200",
+		TokenDecimals:   "6",
+		ContractAddress: "0xd4c288865Ce0985a481Eef3be02443dF5E2e4Ea9",
+	}
+
+	// Store the data
+	err := StoreTemporaryVoucher(ctx, store, sessionId, tempData)
+	require.NoError(t, err)
+
+	// Execute the function being tested
+	data, err := GetTemporaryVoucherData(ctx, store, sessionId)
+	require.NoError(t, err)
+	require.Equal(t, tempData, data)
+}
+
+func TestUpdateVoucherData(t *testing.T) {
+	ctx, store := InitializeTestDb(t)
+	sessionId := "session123"
+
+	// New voucher data
+	newData := &dataserviceapi.TokenHoldings{
+		TokenSymbol:     "SRF",
+		Balance:         "200",
+		TokenDecimals:   "6",
+		ContractAddress: "0xd4c288865Ce0985a481Eef3be02443dF5E2e4Ea9",
+	}
+
+	// Old temporary data
+	tempData := &dataserviceapi.TokenHoldings{
+		TokenSymbol:     "OLD",
+		Balance:         "100",
+		TokenDecimals:   "8",
+		ContractAddress: "0xold",
+	}
+	require.NoError(t, StoreTemporaryVoucher(ctx, store, sessionId, tempData))
+
+	// Execute update
+	err := UpdateVoucherData(ctx, store, sessionId, newData)
+	require.NoError(t, err)
+
+	// Verify active data was stored correctly
+	activeEntries := map[DataTyp][]byte{
+		DATA_ACTIVE_SYM:     []byte(newData.TokenSymbol),
+		DATA_ACTIVE_BAL:     []byte(newData.Balance),
+		DATA_ACTIVE_DECIMAL: []byte(newData.TokenDecimals),
+		DATA_ACTIVE_ADDRESS: []byte(newData.ContractAddress),
+	}
+
+	for key, expectedValue := range activeEntries {
+		storedValue, err := store.ReadEntry(ctx, sessionId, key)
+		require.NoError(t, err)
+		require.Equal(t, expectedValue, storedValue, "Active data mismatch for key %v", key)
+	}
+}

menutraversal_test/menu_traversal_test.go

@@ -9,8 +9,8 @@ import (
 	"regexp"
 	"testing"
 
-	"git.grassecon.net/urdt/ussd/driver"
 	"git.grassecon.net/urdt/ussd/internal/testutil"
+	"git.grassecon.net/urdt/ussd/internal/testutil/driver"
 	"github.com/gofrs/uuid"
 )
 

services/registration/enter_familyname.vis

@@ -1,9 +1,8 @@
 CATCH incorrect_pin flag_incorrect_pin 1
-CATCH profile_update_success flag_allow_update 1
-LOAD save_familyname 0
-RELOAD save_familyname
+CATCH update_familyname flag_allow_update 1
 MOUT back 0
 HALT
+LOAD save_familyname 0
 RELOAD save_familyname
 INCMP _ 0
 INCMP pin_entry *

services/registration/enter_location.vis

@@ -1,8 +1,8 @@
 CATCH incorrect_pin flag_incorrect_pin 1
-CATCH profile_update_success flag_allow_update 1
-LOAD save_location 0
+CATCH update_location flag_allow_update 1
 MOUT back 0
 HALT
+LOAD save_location 0
 RELOAD save_location
 INCMP _ 0
 INCMP pin_entry *

services/registration/enter_name.vis

@@ -1,12 +1,8 @@
 CATCH incorrect_pin flag_incorrect_pin 1
-CATCH profile_update_success flag_allow_update 1
-LOAD save_firstname 0
-RELOAD save_firstname 
+CATCH update_firstname flag_allow_update 1
 MOUT back 0
 HALT
+LOAD save_firstname 0
 RELOAD save_firstname
 INCMP _ 0
 INCMP pin_entry *
-
-
-

services/registration/enter_offerings.vis

@@ -1,5 +1,5 @@
 CATCH incorrect_pin flag_incorrect_pin 1
-CATCH profile_update_success flag_allow_update 1
+CATCH update_offerings flag_allow_update 1
 LOAD save_offerings 0
 MOUT back 0
 HALT

services/registration/enter_yob.vis

@@ -1,10 +1,10 @@
 CATCH incorrect_pin flag_incorrect_pin 1
-CATCH profile_update_success flag_allow_update 1
-LOAD save_yob 0
+CATCH update_yob flag_allow_update 1
 MOUT back 0
 HALT
 LOAD verify_yob 0
 CATCH incorrect_date_format flag_incorrect_date_format 1
+LOAD save_yob 0
 RELOAD save_yob
 INCMP _ 0
 INCMP pin_entry *

services/registration/set_female.vis

@@ -1,4 +1,4 @@
 LOAD save_gender 0
 CATCH incorrect_pin flag_incorrect_pin 1
-CATCH profile_update_success flag_allow_update 1
+CATCH update_gender flag_allow_update 1
 MOVE pin_entry

services/registration/set_male.vis

@@ -1,4 +1,4 @@
 LOAD save_gender 0
 CATCH incorrect_pin flag_incorrect_pin 1
-CATCH profile_update_success flag_allow_update 1
+CATCH update_gender flag_allow_update 1
 MOVE pin_entry

services/registration/set_unspecified.vis

@@ -1,4 +1,4 @@
 LOAD save_gender 0
 CATCH incorrect_pin flag_incorrect_pin 1
-CATCH profile_update_success flag_allow_update 1
+CATCH update_gender flag_allow_update 1
 MOVE pin_entry

services/registration/update_age

@@ -0,0 +1,2 @@
+RELOAD save_yob
+CATCH profile_update_success flag_allow_update 1

services/registration/update_familyname.vis

@@ -0,0 +1,2 @@
+RELOAD save_familyname
+CATCH profile_update_success flag_allow_update 1

services/registration/update_firstname.vis

@@ -0,0 +1,2 @@
+RELOAD save_firstname
+CATCH profile_update_success flag_allow_update 1

services/registration/update_gender.vis

@@ -0,0 +1,2 @@
+RELOAD save_gender
+CATCH profile_update_success flag_allow_update 1

services/registration/update_location.vis

@@ -0,0 +1,2 @@
+RELOAD save_location
+CATCH profile_update_success flag_allow_update 1

services/registration/update_offerings.vis

@@ -0,0 +1,2 @@
+RELOAD save_offerings
+CATCH profile_update_success flag_allow_update 1

services/registration/update_yob.vis

@@ -0,0 +1,2 @@
+RELOAD save_yob
+CATCH profile_update_success flag_allow_update 1