GiftedHacker/tangem-app-android-audited
1
0
Fork 0
Code Issues Pull requests Projects Releases 1 Packages Wiki Activity Actions

Updated on 2026-08-14

Browse source
This commit is contained in:
Tangem 2024-06-05 12:09:55 +04:00
parent 9c5490bced
commit c211d221ea
14 changed files with 251 additions and 113 deletions
Download patch file Download diff file Expand all files Collapse all files

36
data/visa/src/debug/kotlin/com/tangem/data/visa/DefaultVisaRepository.kt
View file

@ -10,10 +10,8 @@ import com.tangem.common.card.EllipticCurve
import com.tangem.common.extensions.hexToBytes
import com.tangem.common.extensions.toHexString
import com.tangem.data.common.cache.CacheRegistry
import com.tangem.data.visa.utils.VisaConfig
import com.tangem.data.visa.utils.VisaCurrencyFactory
import com.tangem.data.visa.utils.VisaTxDetailsFactory
import com.tangem.data.visa.utils.VisaTxHistoryPagingSource
import com.tangem.data.visa.config.VisaLibLoader
import com.tangem.data.visa.utils.*
import com.tangem.datasource.api.common.response.getOrThrow
import com.tangem.datasource.api.tangemTech.TangemTechApi
import com.tangem.datasource.local.userwallet.UserWalletsStore
@ -24,8 +22,6 @@ import com.tangem.domain.visa.model.VisaTxHistoryItem
import com.tangem.domain.visa.repository.VisaRepository
import com.tangem.domain.wallets.models.UserWallet
import com.tangem.domain.wallets.models.UserWalletId
import com.tangem.lib.visa.VisaContractInfoProvider
import com.tangem.lib.visa.api.VisaApi
import com.tangem.lib.visa.model.VisaTxHistoryResponse
import com.tangem.utils.coroutines.CoroutineDispatcherProvider
import kotlinx.coroutines.flow.Flow
@ -35,9 +31,8 @@ import kotlinx.coroutines.withContext
import java.math.BigDecimal
internal class DefaultVisaRepository(
private val visaContractInfoProvider: VisaContractInfoProvider,
private val visaLibLoader: VisaLibLoader,
private val tangemTechApi: TangemTechApi,
private val visaApi: VisaApi,
private val cacheRegistry: CacheRegistry,
private val userWalletsStore: UserWalletsStore,
private val dispatchers: CoroutineDispatcherProvider,
@ -76,9 +71,11 @@ internal class DefaultVisaRepository(
}
private suspend fun fetchVisaCurrency(address: String) {
val contractInfoProvider = visaLibLoader.getOrCreateProvider()
parZip(
dispatchers.io,
{ visaContractInfoProvider.getContractInfo(address) },
{ contractInfoProvider.getContractInfo(address) },
{ getFiatRate() },
{ contractInfo, fiatRate ->
fetchedCurrencies.update { value ->
@ -97,6 +94,7 @@ internal class DefaultVisaRepository(
): Flow<PagingData<VisaTxHistoryItem>> {
val userWallet = findVisaUserWallet(userWalletId)
val cardPubKey = getCardPubKey(userWallet)
val api = visaLibLoader.getOrCreateApi()
val pager = Pager(
config = PagingConfig(
pageSize = pageSize,
@ -110,7 +108,7 @@ internal class DefaultVisaRepository(
isRefresh = isRefresh,
),
cacheRegistry = cacheRegistry,
visaApi = visaApi,
visaApi = api,
fetchedItems = fetchedHistoryItems,
dispatchers = dispatchers,
)
@ -137,7 +135,7 @@ internal class DefaultVisaRepository(
}
private suspend fun makeAddress(userWalletId: UserWalletId): String {
if (IS_DEMO_MODE_ENABLED) return DEMO_ADDRESS
if (VisaConstants.IS_DEMO_MODE_ENABLED) return getDemoAddress()
val userWallet = findVisaUserWallet(userWalletId)
val walletAddresses = makeWalletAddresses(userWallet)
@ -149,13 +147,13 @@ internal class DefaultVisaRepository(
}
private suspend fun getFiatRate(): BigDecimal? {
val fiatCurrencyId = VisaConfig.fiatCurrency.code.lowercase()
val fiatCurrencyId = VisaConstants.fiatCurrency.code.lowercase()
val quotes = tangemTechApi.getQuotes(
currencyId = fiatCurrencyId,
coinIds = VisaConfig.TOKEN_ID,
coinIds = VisaConstants.TOKEN_ID,
).getOrThrow()
return quotes.quotes[VisaConfig.TOKEN_ID]?.price
return quotes.quotes[VisaConstants.TOKEN_ID]?.price
}
private fun makeWalletAddresses(userWallet: UserWallet): Set<Address> {
@ -165,7 +163,7 @@ internal class DefaultVisaRepository(
}
private fun getCardPubKey(userWallet: UserWallet): String {
if (IS_DEMO_MODE_ENABLED) return DEMO_PUBLIC_KEY
if (VisaConstants.IS_DEMO_MODE_ENABLED) return getDemoPublicKey()
val cardWallet = userWallet.scanResponse.card.wallets.firstOrNull {
it.curve == EllipticCurve.Secp256k1
@ -189,12 +187,4 @@ internal class DefaultVisaRepository(
private fun getVisaCurrencyKey(address: String): String {
return "visa_currency_$address"
}
private companion object {
// Must be `false` in production
const val IS_DEMO_MODE_ENABLED = false
const val DEMO_ADDRESS = "0x40d8194b7168723ece51fa34d16825c60ba03dfa"
const val DEMO_PUBLIC_KEY = "02C2BBA0DA1E066EA968C1EB129499F6DEBC5FD82D70D61DCAF691CDB69AF5D8B9"
}
}

25
data/visa/src/debug/kotlin/com/tangem/data/visa/config/VisaConfig.kt Normal file
View file

@ -0,0 +1,25 @@
package com.tangem.data.visa.config
import com.squareup.moshi.Json
internal data class VisaConfig(
@Json(name = "testnet")
val testnet: Addresses,
@Json(name = "mainnet")
val mainnet: Addresses,
@Json(name = "txHistoryAPIAdditionalHeaders")
val header: Header,
) {
data class Addresses(
@Json(name = "paymentAccountRegistry")
val paymentAccountRegistry: String,
@Json(name = "bridgeProcessor")
val bridgeProcessor: String,
)
data class Header(
@Json(name = "x-asn")
val xAsn: String,
)
}

86
data/visa/src/debug/kotlin/com/tangem/data/visa/config/VisaLibLoader.kt Normal file
View file

@ -0,0 +1,86 @@
package com.tangem.data.visa.config
import com.squareup.moshi.Moshi
import com.tangem.data.visa.BuildConfig
import com.tangem.data.visa.utils.VisaConstants
import com.tangem.datasource.asset.loader.AssetLoader
import com.tangem.datasource.di.NetworkMoshi
import com.tangem.lib.visa.VisaContractInfoProvider
import com.tangem.lib.visa.api.VisaApi
import com.tangem.lib.visa.api.VisaApiBuilder
import com.tangem.utils.coroutines.CoroutineDispatcherProvider
import kotlinx.coroutines.sync.Mutex
import kotlinx.coroutines.sync.withLock
import javax.inject.Inject
internal class VisaLibLoader @Inject constructor(
private val assetLoader: AssetLoader,
@NetworkMoshi private val moshi: Moshi,
private val dispatchers: CoroutineDispatcherProvider,
) {
private val createMutex = Mutex()
private var config: VisaConfig? = null
private var provider: VisaContractInfoProvider? = null
private var api: VisaApi? = null
suspend fun getOrCreateProvider(): VisaContractInfoProvider = provider ?: createProvider()
suspend fun getOrCreateApi(): VisaApi = api ?: createApi()
private suspend fun createProvider(): VisaContractInfoProvider = createMutex.withLock {
val config = getOrLoadConfig()
provider = VisaContractInfoProvider.Builder(
useTestnetRpc = VisaConstants.USE_TEST_ENV,
bridgeProcessorAddress = if (VisaConstants.USE_TEST_ENV) {
config.testnet.bridgeProcessor
} else {
config.mainnet.bridgeProcessor
},
paymentAccountRegistryAddress = if (VisaConstants.USE_TEST_ENV) {
config.testnet.paymentAccountRegistry
} else {
config.mainnet.paymentAccountRegistry
},
isNetworkLoggingEnabled = BuildConfig.LOG_ENABLED,
dispatchers = dispatchers,
).build()
return requireNotNull(provider) {
"Visa provider is not created"
}
}
private suspend fun createApi(): VisaApi = createMutex.withLock {
val config = getOrLoadConfig()
api = VisaApiBuilder(
useDevApi = VisaConstants.USE_TEST_ENV,
isNetworkLoggingEnabled = BuildConfig.LOG_ENABLED,
moshi = moshi,
headers = mapOf(
X_ASN_HEADER_NAME to config.header.xAsn,
),
).build()
return requireNotNull(api) {
"Visa API is not created"
}
}
private suspend fun getOrLoadConfig(): VisaConfig {
config = assetLoader.load<VisaConfig>(VISA_CONFIG_FILE_NAME)
return requireNotNull(config) {
"Visa config is not found"
}
}
companion object {
private const val VISA_CONFIG_FILE_NAME = "tangem-app-config/visa_config"
private const val X_ASN_HEADER_NAME = "x-asn"
}
}

35
data/visa/src/debug/kotlin/com/tangem/data/visa/di/ImplementedVisaDataModule.kt
View file

@ -1,15 +1,11 @@
package com.tangem.data.visa.di
import com.squareup.moshi.Moshi
import com.tangem.data.common.cache.CacheRegistry
import com.tangem.data.visa.BuildConfig
import com.tangem.data.visa.DefaultVisaRepository
import com.tangem.data.visa.config.VisaLibLoader
import com.tangem.datasource.api.tangemTech.TangemTechApi
import com.tangem.datasource.di.NetworkMoshi
import com.tangem.datasource.local.userwallet.UserWalletsStore
import com.tangem.domain.visa.repository.VisaRepository
import com.tangem.lib.visa.VisaContractInfoProvider
import com.tangem.lib.visa.api.VisaApiBuilder
import com.tangem.utils.coroutines.CoroutineDispatcherProvider
import dagger.Module
import dagger.Provides
@ -25,29 +21,16 @@ internal object ImplementedVisaDataModule {
@Singleton
@ImplementedVisaRepository
fun provideVisaRepository(
@NetworkMoshi moshi: Moshi,
visaLibLoader: VisaLibLoader,
tangemTechApi: TangemTechApi,
cacheRegistry: CacheRegistry,
userWalletsStore: UserWalletsStore,
dispatchers: CoroutineDispatcherProvider,
): VisaRepository {
val contractInfoProvider = VisaContractInfoProvider.Builder(
isNetworkLoggingEnabled = BuildConfig.LOG_ENABLED,
dispatchers = dispatchers,
).build()
val visaApi = VisaApiBuilder(
useDevApi = true,
isNetworkLoggingEnabled = BuildConfig.LOG_ENABLED,
moshi = moshi,
).build()
return DefaultVisaRepository(
contractInfoProvider,
tangemTechApi,
visaApi,
cacheRegistry,
userWalletsStore,
dispatchers,
)
}
): VisaRepository = DefaultVisaRepository(
visaLibLoader,
tangemTechApi,
cacheRegistry,
userWalletsStore,
dispatchers,
)
}

4
data/visa/src/debug/kotlin/com/tangem/data/visa/utils/CurrencyUtils.kt
View file

@ -7,9 +7,9 @@ import java.util.Currency
internal fun findCurrencyByNumericCode(code: Int): Currency {
return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
Currency.getAvailableCurrencies().firstOrNull { it.numericCode == code }
?: Currency.getInstance(VisaConfig.fiatCurrency.code)
?: Currency.getInstance(VisaConstants.fiatCurrency.code)
} else {
Timber.w("Unable to get currency by numeric code on API level ${Build.VERSION.SDK_INT}")
Currency.getInstance(VisaConfig.fiatCurrency.code)
Currency.getInstance(VisaConstants.fiatCurrency.code)
}
}

16
data/visa/src/debug/kotlin/com/tangem/data/visa/utils/VisaConfig.kt
View file

@ -1,16 +0,0 @@
package com.tangem.data.visa.utils
import com.tangem.domain.appcurrency.model.AppCurrency
internal object VisaConfig {
const val NETWORK_NAME = "Polygon PoS"
const val TOKEN_ID = "tether"
val fiatCurrency = AppCurrency(
code = "EUR",
name = "Euro",
symbol = "€",
)
}

44
data/visa/src/debug/kotlin/com/tangem/data/visa/utils/VisaConstants.kt Normal file
View file

@ -0,0 +1,44 @@
package com.tangem.data.visa.utils
import com.tangem.domain.appcurrency.model.AppCurrency
internal object VisaConstants {
const val NETWORK_NAME = "Polygon PoS"
const val TOKEN_ID = "tether"
val fiatCurrency = AppCurrency(
code = "EUR",
name = "Euro",
symbol = "€",
)
/*
* Must be `false` in production
* Don't forget to change CardTypesResolver.isVisaWallet
* */
const val IS_DEMO_MODE_ENABLED = false
const val USE_TEST_ENV = true
const val DEMO_TESTNET_ADDRESS = "0x51d034eb1563d0d2e66379ef37756d3c14936c44"
const val DEMO_TESTNET_PUBLIC_KEY = "03FA1122B809079F79C4E0F657FE11337FEC88C3FB3C6341B2CE2E4F5D9241DD86"
const val DEMO_MAINNET_ADDRESS = "0x927e3ef2b3d85bacf9e520379f64f6627d323fcd"
const val DEMO_MAINNET_PUBLIC_KEY = "02AC61CD57B8011BEE8BB489FB744845CC113AD379132C56015EE70528B6A88E92"
}
internal fun getDemoAddress(): String {
return if (VisaConstants.USE_TEST_ENV) {
VisaConstants.DEMO_TESTNET_ADDRESS
} else {
VisaConstants.DEMO_MAINNET_ADDRESS
}
}
internal fun getDemoPublicKey(): String {
return if (VisaConstants.USE_TEST_ENV) {
VisaConstants.DEMO_TESTNET_PUBLIC_KEY
} else VisaConstants.DEMO_MAINNET_PUBLIC_KEY
}

4
data/visa/src/debug/kotlin/com/tangem/data/visa/utils/VisaCurrencyFactory.kt
View file

@ -21,10 +21,10 @@ internal class VisaCurrencyFactory {
return VisaCurrency(
symbol = contractInfo.token.symbol,
networkName = VisaConfig.NETWORK_NAME,
networkName = VisaConstants.NETWORK_NAME,
decimals = contractInfo.token.decimals,
fiatRate = fiatRate,
fiatCurrency = VisaConfig.fiatCurrency,
fiatCurrency = VisaConstants.fiatCurrency,
balances = with(contractInfo) {
VisaCurrency.Balances(
total = balances.total,

31
features/wallet/impl/src/main/java/com/tangem/feature/wallet/presentation/wallet/state/transformers/SetBalancesAndLimitsTransformer.kt
View file

@ -19,24 +19,25 @@ internal class SetBalancesAndLimitsTransformer(
private val userWallet: UserWallet,
private val maybeVisaCurrency: Either<Throwable, VisaCurrency>,
private val clickIntents: WalletClickIntents,
) : WalletStateTransformer(userWallet.walletId) {
) : TypedWalletStateTransformer<WalletState.Visa.Content>(
userWalletId = userWallet.walletId,
targetStateClass = WalletState.Visa.Content::class,
) {
override fun transform(prevState: WalletState): WalletState {
return prevState.transformWhenInState<WalletState.Visa.Content> { state ->
val visaCurrency = maybeVisaCurrency.getOrElse {
return state.copy(
walletCardState = getErrorWalletCardState(state.walletCardState),
depositButtonState = state.depositButtonState.copy(isEnabled = false),
balancesAndLimitBlockState = BalancesAndLimitsBlockState.Error,
)
}
state.copy(
walletCardState = getContentWalletCardState(state.walletCardState, visaCurrency),
depositButtonState = state.depositButtonState.copy(isEnabled = true),
balancesAndLimitBlockState = getContentBlockState(visaCurrency),
override fun transformTyped(prevState: WalletState.Visa.Content): WalletState {
val visaCurrency = maybeVisaCurrency.getOrElse {
return prevState.copy(
walletCardState = getErrorWalletCardState(prevState.walletCardState),
depositButtonState = prevState.depositButtonState.copy(isEnabled = false),
balancesAndLimitBlockState = BalancesAndLimitsBlockState.Error,
)
}
return prevState.copy(
walletCardState = getContentWalletCardState(prevState.walletCardState, visaCurrency),
depositButtonState = prevState.depositButtonState.copy(isEnabled = true),
balancesAndLimitBlockState = getContentBlockState(visaCurrency),
)
}
private fun getContentBlockState(visaCurrency: VisaCurrency) = BalancesAndLimitsBlockState.Content(

22
features/wallet/impl/src/main/java/com/tangem/feature/wallet/presentation/wallet/state/transformers/TypedWalletStateTransformer.kt Normal file
View file

@ -0,0 +1,22 @@
package com.tangem.feature.wallet.presentation.wallet.state.transformers
import com.tangem.domain.wallets.models.UserWalletId
import com.tangem.feature.wallet.presentation.wallet.state.model.WalletState
import kotlin.reflect.KClass
internal abstract class TypedWalletStateTransformer<S : WalletState>(
userWalletId: UserWalletId,
protected val targetStateClass: KClass<S>,
) : WalletStateTransformer(userWalletId) {
abstract fun transformTyped(prevState: S): WalletState
@Suppress("UNCHECKED_CAST")
final override fun transform(prevState: WalletState): WalletState {
return if (prevState::class == targetStateClass) {
transformTyped(prevState as S)
} else {
prevState
}
}
}

12
features/wallet/impl/src/main/java/com/tangem/feature/wallet/presentation/wallet/state/transformers/WalletStateTransformer.kt
View file

@ -4,7 +4,6 @@ import com.tangem.domain.wallets.models.UserWalletId
import com.tangem.feature.wallet.presentation.wallet.state.model.WalletScreenState
import com.tangem.feature.wallet.presentation.wallet.state.model.WalletState
import kotlinx.collections.immutable.toImmutableList
import timber.log.Timber
internal abstract class WalletStateTransformer(
protected val userWalletId: UserWalletId,
@ -12,7 +11,7 @@ internal abstract class WalletStateTransformer(
abstract fun transform(prevState: WalletState): WalletState
override fun transform(prevState: WalletScreenState): WalletScreenState {
final override fun transform(prevState: WalletScreenState): WalletScreenState {
return prevState.copy(
wallets = prevState.wallets
.map { state ->
@ -21,13 +20,4 @@ internal abstract class WalletStateTransformer(
.toImmutableList(),
)
}
protected inline fun <reified S : WalletState> WalletState.transformWhenInState(
transform: (state: S) -> WalletState,
): WalletState = if (this is S) {
transform(this)
} else {
Timber.w("Impossible to transform ${this::class.simpleName} because current is ${S::class.simpleName}")
this
}
}

22
libs/visa/src/main/kotlin/com/tangem/lib/visa/VisaContractInfoProvider.kt
View file

@ -3,8 +3,8 @@ package com.tangem.lib.visa
import com.ihsanbal.logging.Level
import com.ihsanbal.logging.LoggingInterceptor
import com.tangem.lib.visa.model.VisaContractInfo
import com.tangem.lib.visa.utils.VisaConfig
import com.tangem.lib.visa.utils.VisaConfig.NETWORK_LOGS_TAG
import com.tangem.lib.visa.utils.Constants
import com.tangem.lib.visa.utils.Constants.NETWORK_LOGS_TAG
import com.tangem.lib.visa.utils.toHexString
import com.tangem.utils.coroutines.CoroutineDispatcherProvider
import okhttp3.OkHttpClient
@ -24,16 +24,16 @@ interface VisaContractInfoProvider {
suspend fun getContractInfo(walletAddress: String): VisaContractInfo
class Builder(
private val useTestnetRpc: Boolean,
private val bridgeProcessorAddress: String,
private val paymentAccountRegistryAddress: String,
private val isNetworkLoggingEnabled: Boolean,
private val dispatchers: CoroutineDispatcherProvider,
private val baseUrl: String = VisaConfig.BASE_RPC_URL,
private val bridgeProcessorAddress: String = VisaConfig.BRIDGE_PROCESSOR_CONTRACT_ADDRESS,
private val paymentAccountRegistryAddress: String = VisaConfig.PAYMENT_ACCOUNT_REGISTRY_ADDRESS,
private val chainId: Long = VisaConfig.CHAIN_ID,
private val networkTimeoutSeconds: Long = VisaConfig.NETWORK_TIMEOUT_SECONDS,
private val decimals: Int = VisaConfig.DECIMALS,
private val gasLimit: Long = VisaConfig.GAS_LIMIT,
private val privateKey: String = ByteArray(VisaConfig.PRIVATE_KEY_LENGTH).toHexString(),
private val chainId: Long = Constants.CHAIN_ID,
private val decimals: Int = Constants.DECIMALS,
private val gasLimit: Long = Constants.GAS_LIMIT,
private val networkTimeoutSeconds: Long = Constants.NETWORK_TIMEOUT_SECONDS,
private val privateKey: String = ByteArray(Constants.PRIVATE_KEY_LENGTH).toHexString(),
) {
fun build(): VisaContractInfoProvider {
@ -52,6 +52,8 @@ interface VisaContractInfoProvider {
}
private fun createWeb3J(): Web3j {
val baseUrl: String = if (useTestnetRpc) Constants.TESTNET_RPC_URL else Constants.MAINNET_RPC_URL
val httpClient = OkHttpClient.Builder().apply {
connectTimeout(networkTimeoutSeconds, TimeUnit.SECONDS)
readTimeout(networkTimeoutSeconds, TimeUnit.SECONDS)

19
libs/visa/src/main/kotlin/com/tangem/lib/visa/api/VisaApiBuilder.kt
View file

@ -5,8 +5,8 @@ import com.ihsanbal.logging.Level
import com.ihsanbal.logging.LoggingInterceptor
import com.squareup.moshi.Moshi
import com.tangem.datasource.api.common.response.ApiResponseCallAdapterFactory
import com.tangem.lib.visa.utils.VisaConfig
import com.tangem.lib.visa.utils.VisaConfig.NETWORK_LOGS_TAG
import com.tangem.lib.visa.utils.Constants
import com.tangem.lib.visa.utils.Constants.NETWORK_LOGS_TAG
import okhttp3.Interceptor
import okhttp3.OkHttpClient
import retrofit2.Retrofit
@ -17,7 +17,8 @@ class VisaApiBuilder(
private val useDevApi: Boolean,
private val isNetworkLoggingEnabled: Boolean,
private val moshi: Moshi,
private val networkTimeoutSeconds: Long = VisaConfig.NETWORK_TIMEOUT_SECONDS,
private val headers: Map<String, String>,
private val networkTimeoutSeconds: Long = Constants.NETWORK_TIMEOUT_SECONDS,
) {
fun build(): VisaApi {
@ -35,13 +36,23 @@ class VisaApiBuilder(
if (isNetworkLoggingEnabled) {
addInterceptor(createNetworkLoggingInterceptor())
}
if (headers.isNotEmpty()) {
addInterceptor { chain ->
val request = chain.request().newBuilder().apply {
headers.forEach { (key, value) -> addHeader(key, value) }
}.build()
chain.proceed(request)
}
}
}
return builder.build()
}
private fun createRetrofit(okHttpClient: OkHttpClient): Retrofit {
val baseUrl = if (useDevApi) VisaConfig.VISA_API_DEV_URL else VisaConfig.VISA_API_PROD_URL
val baseUrl = if (useDevApi) Constants.VISA_API_DEV_URL else Constants.VISA_API_PROD_URL
return Retrofit.Builder()
.addConverterFactory(MoshiConverterFactory.create(moshi))

8
libs/visa/src/main/kotlin/com/tangem/lib/visa/utils/VisaConfig.kt → libs/visa/src/main/kotlin/com/tangem/lib/visa/utils/Constants.kt
View file

@ -1,10 +1,10 @@
package com.tangem.lib.visa.utils
internal object VisaConfig {
internal object Constants {
const val MAINNET_RPC_URL = "https://polygon-rpc.com/"
const val TESTNET_RPC_URL = "https://rpc-amoy.polygon.technology/"
const val BASE_RPC_URL = "https://polygon-mumbai.g.alchemy.com/v2/_1qqjXgBC_IikaXChnna8KTcV2eMMIQG/"
const val BRIDGE_PROCESSOR_CONTRACT_ADDRESS = "0xe32ecbbc1ec17fa9c160569cd613ad568ca50279"
const val PAYMENT_ACCOUNT_REGISTRY_ADDRESS = "0x3f4ae01073d1a9d5a92315fe118e57d1cdec7c44"
const val CHAIN_ID = 80_001L
const val DECIMALS = 9
const val GAS_LIMIT = 500_000_000L