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Updated on 2026-08-14

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Tangem 2026-01-07 14:23:34 +03:00
parent 3baec6cc7e
commit 8564f21d01
9 changed files with 369 additions and 83 deletions
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41
data/transaction/src/main/java/com/tangem/data/transaction/DefaultGaslessTransactionRepository.kt
View file

@ -26,7 +26,7 @@ class DefaultGaslessTransactionRepository(
private val responseCryptoCurrenciesFactory: ResponseCryptoCurrenciesFactory,
) : GaslessTransactionRepository {
private val supportedTokensState = MutableStateFlow<Set<CryptoCurrency>?>(null)
private val supportedTokensState = MutableStateFlow<Map<Network.ID, Set<CryptoCurrency>>>(hashMapOf())
private val gaslessTransactionRequestBuilder = GaslessTransactionRequestBuilder()
private val signedTransactionResultConverter = GaslessSignedTransactionResultConverter()
@ -37,28 +37,37 @@ class DefaultGaslessTransactionRepository(
override suspend fun getSupportedTokens(network: Network): Set<CryptoCurrency> {
return withContext(coroutineDispatcherProvider.io) {
val storedTokens = supportedTokensState.value
val storedTokens = supportedTokensState.value[network.id]
if (storedTokens != null && storedTokens.isNotEmpty()) {
return@withContext storedTokens
}
val supportedTokensData = gaslessTxServiceApi.getSupportedTokens().getOrThrow()
if (supportedTokensData.isSuccess) {
val supportedTokens = supportedTokensData.result.tokens.mapNotNull { token ->
val blockchain = Blockchain.fromChainId(token.chainId) ?: return@mapNotNull null
responseCryptoCurrenciesFactory.createToken(
blockchain = blockchain,
sdkToken = Token(
contractAddress = token.tokenAddress,
name = token.tokenName,
symbol = token.tokenSymbol,
decimals = token.decimals,
),
network = network,
)
}.toSet()
val networkBlockchain = Blockchain.fromNetworkId(network.backendId)
?: error("Cannot determine blockchain for network id: ${network.backendId}")
val supportedTokens = supportedTokensData.result.tokens
.filter {
it.chainId == networkBlockchain.getChainId()
}
.map { token ->
responseCryptoCurrenciesFactory.createToken(
blockchain = networkBlockchain,
sdkToken = Token(
contractAddress = token.tokenAddress,
name = token.tokenName,
symbol = token.tokenSymbol,
decimals = token.decimals,
),
network = network,
)
}.toSet()
// update local cache
supportedTokensState.update { supportedTokens }
supportedTokensState.update { current ->
val newMap = current.toMutableMap()
newMap[network.id] = supportedTokens
newMap
}
return@withContext supportedTokens
} else {
error("Gasless service returned unsuccessful response")

4
data/transaction/src/main/java/com/tangem/data/transaction/convertes/GaslessTxDataToGaslessRequestConverter.kt
View file

@ -23,7 +23,7 @@ class GaslessTxDataToGaslessRequestConverter : Converter<GaslessTransactionData,
)
}
private fun convertTransaction(transaction: com.tangem.domain.transaction.models.Transaction): TransactionData {
private fun convertTransaction(transaction: GaslessTransactionData.Transaction): TransactionData {
return TransactionData(
to = transaction.to,
value = transaction.value.toString(),
@ -31,7 +31,7 @@ class GaslessTxDataToGaslessRequestConverter : Converter<GaslessTransactionData,
)
}
private fun convertFee(fee: com.tangem.domain.transaction.models.Fee): FeeData {
private fun convertFee(fee: GaslessTransactionData.Fee): FeeData {
return FeeData(
feeToken = fee.feeToken,
maxTokenFee = fee.maxTokenFee.toString(),