Updated on 2026-08-14

data/account/src/main/kotlin/com/tangem/data/account/fetcher/DefaultWalletAccountsFetcher.kt

@@ -54,9 +54,10 @@ internal class DefaultWalletAccountsFetcher @Inject constructor(
 
     override suspend fun fetch(userWalletId: UserWalletId): GetWalletAccountsResponse {
         val savedAccountsResponse = getAccountsResponseStore(userWalletId = userWalletId).getSyncOrNull()
-        val accountsResponse = fetchWalletAccounts(userWalletId, savedAccountsResponse)
+        val fetchResult = fetchWalletAccounts(userWalletId, savedAccountsResponse)
+        val accountsResponse = fetchResult.accountsResponse
 
-        return when {
+        val updatedResponse = when {
             accountsResponse.accounts.isEmpty() -> {
                 initializeAccounts(userWalletId, accountsResponse)
             }
@@ -65,6 +66,12 @@ internal class DefaultWalletAccountsFetcher @Inject constructor(
             }
             else -> accountsResponse
         }
+
+        if (fetchResult.error != null) {
+            throw fetchResult.error
+        }
+
+        return updatedResponse
     }
 
     override suspend fun getSaved(userWalletId: UserWalletId): GetWalletAccountsResponse? {
@@ -123,7 +130,7 @@ internal class DefaultWalletAccountsFetcher @Inject constructor(
     private suspend fun fetchWalletAccounts(
         userWalletId: UserWalletId,
         savedAccountsResponse: GetWalletAccountsResponse?,
-    ): GetWalletAccountsResponse {
+    ): FetchResult {
         return safeApiCall(
             call = {
                 val apiResponse = withContext(dispatchers.io) {
@@ -138,7 +145,7 @@ internal class DefaultWalletAccountsFetcher @Inject constructor(
                 val responseBody = apiResponse.bind()
                 store(userWalletId = userWalletId, response = responseBody)
 
-                responseBody
+                FetchResult(responseBody)
             },
             onError = { throwable ->
                 // pushWalletAccounts and storeWalletAccounts help to avoid cyclic dependency
@@ -211,4 +218,9 @@ internal class DefaultWalletAccountsFetcher @Inject constructor(
     private fun getAccountsResponseStore(userWalletId: UserWalletId): AccountsResponseStore {
         return accountsResponseStoreFactory.create(userWalletId = userWalletId)
     }
+
+    data class FetchResult(
+        val accountsResponse: GetWalletAccountsResponse,
+        val error: Throwable? = null,
+    )
 }

data/account/src/main/kotlin/com/tangem/data/account/fetcher/FetchWalletAccountsErrorHandler.kt

@@ -1,5 +1,6 @@
 package com.tangem.data.account.fetcher
 
+import com.tangem.data.account.fetcher.DefaultWalletAccountsFetcher.FetchResult
 import com.tangem.data.account.utils.DefaultWalletAccountsResponseFactory
 import com.tangem.data.common.cache.etag.ETagsStore
 import com.tangem.data.common.currency.UserTokensResponseAccountIdEnricher
@@ -69,13 +70,15 @@ internal class FetchWalletAccountsErrorHandler @Inject constructor(
         savedAccountsResponse: GetWalletAccountsResponse?,
         pushWalletAccounts: suspend (UserWalletId, List<WalletAccountDTO>) -> GetWalletAccountsResponse?,
         storeWalletAccounts: suspend (UserWalletId, GetWalletAccountsResponse) -> Unit,
-    ): GetWalletAccountsResponse {
+    ): FetchResult {
         val isResponseUpToDate = error.isNetworkError(code = Code.NOT_MODIFIED)
         if (isResponseUpToDate) {
             Timber.e("ETag is up to date, no need to update accounts for wallet: $userWalletId")
-            return requireNotNull(savedAccountsResponse) {
+            val response = requireNotNull(savedAccountsResponse) {
                 "Saved accounts response is null for wallet: $userWalletId"
             }
+
+            return FetchResult(response)
         }
 
         val response = savedAccountsResponse ?: createDefaultResponse(userWalletId)
@@ -95,7 +98,7 @@ internal class FetchWalletAccountsErrorHandler @Inject constructor(
 
         storeWalletAccounts(userWalletId, response)
 
-        return response
+        return FetchResult(response, error)
     }
 
     private suspend fun createDefaultResponse(userWalletId: UserWalletId): GetWalletAccountsResponse {

data/account/src/main/kotlin/com/tangem/data/account/repository/DefaultAccountsCRUDRepository.kt

@@ -151,9 +151,9 @@ internal class DefaultAccountsCRUDRepository(
         )
 
         val syncedResponse = walletAccountsSaver.push(userWalletId = accountList.userWalletId, accounts = accountDTOs)
-        if (syncedResponse != null) {
-            walletAccountsSaver.store(userWalletId = accountList.userWalletId, response = syncedResponse)
-        }
+            ?: error("Failed to push accounts for wallet: ${accountList.userWalletId}")
+
+        walletAccountsSaver.store(userWalletId = accountList.userWalletId, response = syncedResponse)
     }
 
     override suspend fun saveAccount(account: Account.CryptoPortfolio) {

data/manage-tokens/src/main/kotlin/com/tangem/data/managetokens/DefaultManageTokensRepository.kt

@@ -163,6 +163,7 @@ internal class DefaultManageTokensRepository(
         )
     }
 
+    @Suppress("CyclomaticComplexMethod")
     private suspend fun createManagedCryptoCurrencyList(
         params: ManageTokensListConfig.Account,
         userWallet: UserWallet?,
@@ -172,11 +173,15 @@ internal class DefaultManageTokensRepository(
         updatedCoinsResponse: CoinsResponse,
     ): List<ManagedCryptoCurrency> {
         val response = params.userWalletId?.let { userWalletId ->
-            if (loadUserTokensFromRemote && userWallet != null) {
+            val shouldFetch = loadUserTokensFromRemote && userWallet != null
+
+            val fetchedResponse = if (shouldFetch) {
                 runCatching { walletAccountsFetcher.fetch(userWalletId = userWallet.walletId) }.getOrNull()
             } else {
-                walletAccountsFetcher.getSaved(userWalletId)
+                null
             }
+
+            fetchedResponse ?: walletAccountsFetcher.getSaved(userWalletId)
         }
 
         val accountId = when {