package wallet import ( "context" "encoding/json" "errors" "fmt" "math/big" "strings" "time" "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/common/hexutil" "github.com/ethereum/go-ethereum/ethclient" "github.com/ethereum/go-ethereum/log" gethrpc "github.com/ethereum/go-ethereum/rpc" "github.com/status-im/status-go/eth-node/types" "github.com/status-im/status-go/params" "github.com/status-im/status-go/rpc/network" "github.com/status-im/status-go/services/wallet/activity" "github.com/status-im/status-go/services/wallet/bridge" wcommon "github.com/status-im/status-go/services/wallet/common" "github.com/status-im/status-go/services/wallet/currency" "github.com/status-im/status-go/services/wallet/history" "github.com/status-im/status-go/services/wallet/thirdparty" "github.com/status-im/status-go/services/wallet/thirdparty/opensea" "github.com/status-im/status-go/services/wallet/token" "github.com/status-im/status-go/services/wallet/transfer" "github.com/status-im/status-go/services/wallet/walletevent" "github.com/status-im/status-go/transactions" ) func NewAPI(s *Service) *API { router := NewRouter(s) return &API{s, s.reader, router} } // API is class with methods available over RPC. type API struct { s *Service reader *Reader router *Router } func (api *API) StartWallet(ctx context.Context) error { return api.reader.Start() } func (api *API) StopWallet(ctx context.Context) error { return api.s.Stop() } func (api *API) GetPairingsJSONFileContent() ([]byte, error) { return api.s.keycardPairings.GetPairingsJSONFileContent() } func (api *API) SetPairingsJSONFileContent(content []byte) error { return api.s.keycardPairings.SetPairingsJSONFileContent(content) } func (api *API) GetWalletToken(ctx context.Context, addresses []common.Address) (map[common.Address][]Token, error) { return api.reader.GetWalletToken(ctx, addresses) } func (api *API) GetCachedWalletTokensWithoutMarketData(ctx context.Context) (map[common.Address][]Token, error) { return api.reader.GetCachedWalletTokensWithoutMarketData() } type DerivedAddress struct { Address common.Address `json:"address"` PublicKey types.HexBytes `json:"public-key,omitempty"` Path string `json:"path"` HasActivity bool `json:"hasActivity"` AlreadyCreated bool `json:"alreadyCreated"` } // @deprecated func (api *API) CheckRecentHistory(ctx context.Context, addresses []common.Address) error { return api.s.transferController.CheckRecentHistory([]uint64{api.s.rpcClient.UpstreamChainID}, addresses) } // @deprecated func (api *API) CheckRecentHistoryForChainIDs(ctx context.Context, chainIDs []uint64, addresses []common.Address) error { return api.s.transferController.CheckRecentHistory(chainIDs, addresses) } func hexBigToBN(hexBig *hexutil.Big) *big.Int { var bN *big.Int if hexBig != nil { bN = hexBig.ToInt() } return bN } // @deprecated // GetTransfersByAddress returns transfers for a single address func (api *API) GetTransfersByAddress(ctx context.Context, address common.Address, toBlock, limit *hexutil.Big, fetchMore bool) ([]transfer.View, error) { log.Debug("[WalletAPI:: GetTransfersByAddress] get transfers for an address", "address", address) var intLimit = int64(1) if limit != nil { intLimit = limit.ToInt().Int64() } return api.s.transferController.GetTransfersByAddress(ctx, api.s.rpcClient.UpstreamChainID, address, hexBigToBN(toBlock), intLimit, fetchMore) } // @deprecated // LoadTransferByHash loads transfer to the database // Only used by status-mobile func (api *API) LoadTransferByHash(ctx context.Context, address common.Address, hash common.Hash) error { log.Debug("[WalletAPI:: LoadTransferByHash] get transfer by hash", "address", address, "hash", hash) return api.s.transferController.LoadTransferByHash(ctx, api.s.rpcClient, address, hash) } // @deprecated func (api *API) GetTransfersByAddressAndChainID(ctx context.Context, chainID uint64, address common.Address, toBlock, limit *hexutil.Big, fetchMore bool) ([]transfer.View, error) { log.Debug("[WalletAPI:: GetTransfersByAddressAndChainIDs] get transfers for an address", "address", address) return api.s.transferController.GetTransfersByAddress(ctx, chainID, address, hexBigToBN(toBlock), limit.ToInt().Int64(), fetchMore) } // @deprecated func (api *API) GetTransfersForIdentities(ctx context.Context, identities []transfer.TransactionIdentity) ([]transfer.View, error) { log.Debug("wallet.api.GetTransfersForIdentities", "identities.len", len(identities)) return api.s.transferController.GetTransfersForIdentities(ctx, identities) } func (api *API) FetchDecodedTxData(ctx context.Context, data string) (*thirdparty.DataParsed, error) { log.Debug("[Wallet: FetchDecodedTxData]") return api.s.decoder.Decode(data) } // @deprecated // GetTokensBalances return mapping of token balances for every account. func (api *API) GetTokensBalances(ctx context.Context, accounts, addresses []common.Address) (map[common.Address]map[common.Address]*hexutil.Big, error) { chainClients, err := api.s.rpcClient.EthClients([]uint64{api.s.rpcClient.UpstreamChainID}) if err != nil { return nil, err } return api.s.tokenManager.GetBalances(ctx, chainClients, accounts, addresses) } // @deprecated func (api *API) GetTokensBalancesForChainIDs(ctx context.Context, chainIDs []uint64, accounts, addresses []common.Address) (map[common.Address]map[common.Address]*hexutil.Big, error) { clients, err := api.s.rpcClient.EthClients(chainIDs) if err != nil { return nil, err } return api.s.tokenManager.GetBalances(ctx, clients, accounts, addresses) } func (api *API) UpdateVisibleTokens(ctx context.Context, symbols []string) error { api.s.history.UpdateVisibleTokens(symbols) return nil } // GetBalanceHistory retrieves token balance history for token identity on multiple chains func (api *API) GetBalanceHistory(ctx context.Context, chainIDs []uint64, address common.Address, tokenSymbol string, currencySymbol string, timeInterval history.TimeInterval) ([]*history.ValuePoint, error) { endTimestamp := time.Now().UTC().Unix() return api.s.history.GetBalanceHistory(ctx, chainIDs, address, tokenSymbol, currencySymbol, endTimestamp, timeInterval) } func (api *API) GetTokens(ctx context.Context, chainID uint64) ([]*token.Token, error) { log.Debug("call to get tokens") rst, err := api.s.tokenManager.GetTokens(chainID) log.Debug("result from token store", "len", len(rst)) return rst, err } func (api *API) GetCustomTokens(ctx context.Context) ([]*token.Token, error) { log.Debug("call to get custom tokens") rst, err := api.s.tokenManager.GetCustoms() log.Debug("result from database for custom tokens", "len", len(rst)) return rst, err } func (api *API) DiscoverToken(ctx context.Context, chainID uint64, address common.Address) (*token.Token, error) { log.Debug("call to get discover token") token, err := api.s.tokenManager.DiscoverToken(ctx, chainID, address) return token, err } // @deprecated func (api *API) GetVisibleTokens(chainIDs []uint64) (map[uint64][]*token.Token, error) { log.Debug("call to get visible tokens") rst, err := api.s.tokenManager.GetVisible(chainIDs) log.Debug("result from database for visible tokens", "len", len(rst)) return rst, err } // @deprecated func (api *API) ToggleVisibleToken(ctx context.Context, chainID uint64, address common.Address) (bool, error) { log.Debug("call to toggle visible tokens") err := api.s.tokenManager.Toggle(chainID, address) if err != nil { return false, err } return true, nil } func (api *API) AddCustomToken(ctx context.Context, token token.Token) error { log.Debug("call to create or edit custom token") if token.ChainID == 0 { token.ChainID = api.s.rpcClient.UpstreamChainID } err := api.s.tokenManager.UpsertCustom(token) log.Debug("result from database for create or edit custom token", "err", err) return err } // @deprecated func (api *API) DeleteCustomToken(ctx context.Context, address common.Address) error { log.Debug("call to remove custom token") err := api.s.tokenManager.DeleteCustom(api.s.rpcClient.UpstreamChainID, address) log.Debug("result from database for remove custom token", "err", err) return err } func (api *API) DeleteCustomTokenByChainID(ctx context.Context, chainID uint64, address common.Address) error { log.Debug("call to remove custom token") err := api.s.tokenManager.DeleteCustom(chainID, address) log.Debug("result from database for remove custom token", "err", err) return err } func (api *API) GetSavedAddresses(ctx context.Context) ([]SavedAddress, error) { log.Debug("call to get saved addresses") rst, err := api.s.savedAddressesManager.GetSavedAddresses() log.Debug("result from database for saved addresses", "len", len(rst)) return rst, err } func (api *API) AddSavedAddress(ctx context.Context, sa SavedAddress) error { log.Debug("call to create or edit saved address") _, err := api.s.savedAddressesManager.UpdateMetadataAndUpsertSavedAddress(sa) log.Debug("result from database for create or edit saved address", "err", err) return err } func (api *API) DeleteSavedAddress(ctx context.Context, address common.Address, ens string, isTest bool) error { log.Debug("call to remove saved address") _, err := api.s.savedAddressesManager.DeleteSavedAddress(address, ens, isTest, uint64(time.Now().Unix())) log.Debug("result from database for remove saved address", "err", err) return err } // @deprecated func (api *API) GetPendingTransactions(ctx context.Context) ([]*transactions.PendingTransaction, error) { log.Debug("wallet.api.GetPendingTransactions") rst, err := api.s.pendingTxManager.GetAllPending() log.Debug("wallet.api.GetPendingTransactions RESULT", "len", len(rst)) return rst, err } func (api *API) GetPendingTransactionsForIdentities(ctx context.Context, identities []transfer.TransactionIdentity) ( result []*transactions.PendingTransaction, err error) { log.Debug("wallet.api.GetPendingTransactionsForIdentities") result = make([]*transactions.PendingTransaction, 0, len(identities)) var pt *transactions.PendingTransaction for _, identity := range identities { pt, err = api.s.pendingTxManager.GetPendingEntry(identity.ChainID, identity.Hash) result = append(result, pt) } log.Debug("wallet.api.GetPendingTransactionsForIdentities RES", "len", len(result)) return } // @deprecated // TODO - #11861: Remove this and replace with EventPendingTransactionStatusChanged event and Delete to confirm the transaction where it is needed func (api *API) WatchTransactionByChainID(ctx context.Context, chainID uint64, transactionHash common.Hash) (err error) { log.Debug("wallet.api.WatchTransactionByChainID", "chainID", chainID, "transactionHash", transactionHash) var status *transactions.TxStatus defer func() { log.Debug("wallet.api.WatchTransactionByChainID return", "err", err, "chainID", chainID, "transactionHash", transactionHash) }() // Workaround to keep the blocking call until the clients use the PendingTxTracker APIs eventChan := make(chan walletevent.Event, 2) sub := api.s.feed.Subscribe(eventChan) defer sub.Unsubscribe() status, err = api.s.pendingTxManager.Watch(ctx, wcommon.ChainID(chainID), transactionHash) if err == nil && *status != transactions.Pending { return nil } for { select { case we := <-eventChan: if transactions.EventPendingTransactionStatusChanged == we.Type { var p transactions.StatusChangedPayload err = json.Unmarshal([]byte(we.Message), &p) if err != nil { return err } if p.ChainID == wcommon.ChainID(chainID) && p.Hash == transactionHash { return nil } } case <-time.After(10 * time.Minute): return errors.New("timeout watching for pending transaction") } } } func (api *API) GetCryptoOnRamps(ctx context.Context) ([]CryptoOnRamp, error) { return api.s.cryptoOnRampManager.Get() } /* Collectibles API Start */ func (api *API) FetchBalancesByOwnerAndContractAddress(chainID wcommon.ChainID, ownerAddress common.Address, contractAddresses []common.Address) (thirdparty.TokenBalancesPerContractAddress, error) { log.Debug("call to FetchBalancesByOwnerAndContractAddress") return api.s.collectiblesManager.FetchBalancesByOwnerAndContractAddress(chainID, ownerAddress, contractAddresses) } func (api *API) FilterOwnedCollectiblesAsync(requestID int32, chainIDs []wcommon.ChainID, addresses []common.Address, offset int, limit int) error { log.Debug("wallet.api.FilterOwnedCollectiblesAsync", "chainIDs.count", len(chainIDs), "addr.count", len(addresses), "offset", offset, "limit", limit) api.s.collectibles.FilterOwnedCollectiblesAsync(requestID, chainIDs, addresses, offset, limit) return nil } func (api *API) GetCollectiblesDetailsAsync(requestID int32, uniqueIDs []thirdparty.CollectibleUniqueID) error { log.Debug("wallet.api.GetCollectiblesDetailsAsync") api.s.collectibles.GetCollectiblesDetailsAsync(requestID, uniqueIDs) return nil } // @deprecated // Old Collectibles API - To be deprecated func (api *API) GetOpenseaCollectionsByOwner(ctx context.Context, chainID wcommon.ChainID, owner common.Address) ([]opensea.OwnedCollection, error) { log.Debug("call to GetOpenseaCollectionsByOwner") return api.s.collectiblesManager.FetchAllCollectionsByOwner(chainID, owner) } // @deprecated func (api *API) GetOpenseaAssetsByOwnerAndCollectionWithCursor(ctx context.Context, chainID wcommon.ChainID, owner common.Address, collectionSlug string, cursor string, limit int) (*opensea.AssetContainer, error) { log.Debug("call to GetOpenseaAssetsByOwnerAndCollectionWithCursor") return api.s.collectiblesManager.FetchAllOpenseaAssetsByOwnerAndCollection(chainID, owner, collectionSlug, cursor, limit) } // @deprecated func (api *API) GetOpenseaAssetsByOwnerAndCollection(ctx context.Context, chainID wcommon.ChainID, owner common.Address, collectionSlug string, limit int) ([]opensea.Asset, error) { container, err := api.GetOpenseaAssetsByOwnerAndCollectionWithCursor(ctx, chainID, owner, collectionSlug, "", limit) if err != nil { return nil, err } return container.Assets, nil } // @deprecated func (api *API) GetCollectiblesByOwnerAndCollectionWithCursor(ctx context.Context, chainID wcommon.ChainID, owner common.Address, collectionSlug string, cursor string, limit int) (*thirdparty.FullCollectibleDataContainer, error) { log.Debug("call to GetCollectiblesByOwnerAndCollectionWithCursor") return api.s.collectiblesManager.FetchAllAssetsByOwnerAndCollection(chainID, owner, collectionSlug, cursor, limit) } // @deprecated func (api *API) GetCollectiblesByOwnerWithCursor(ctx context.Context, chainID wcommon.ChainID, owner common.Address, cursor string, limit int) (*thirdparty.FullCollectibleDataContainer, error) { log.Debug("call to GetCollectiblesByOwnerWithCursor") return api.s.collectiblesManager.FetchAllAssetsByOwner(chainID, owner, cursor, limit) } // @deprecated func (api *API) GetCollectiblesByOwnerAndContractAddressWithCursor(ctx context.Context, chainID wcommon.ChainID, owner common.Address, contractAddresses []common.Address, cursor string, limit int) (*thirdparty.FullCollectibleDataContainer, error) { log.Debug("call to GetCollectiblesByOwnerAndContractAddressWithCursor") return api.s.collectiblesManager.FetchAllAssetsByOwnerAndContractAddress(chainID, owner, contractAddresses, cursor, limit) } // @deprecated func (api *API) GetCollectiblesByUniqueID(ctx context.Context, uniqueIDs []thirdparty.CollectibleUniqueID) ([]thirdparty.FullCollectibleData, error) { log.Debug("call to GetCollectiblesByUniqueID") return api.s.collectiblesManager.FetchAssetsByCollectibleUniqueID(uniqueIDs) } func (api *API) GetCollectibleOwnersByContractAddress(chainID wcommon.ChainID, contractAddress common.Address) (*thirdparty.CollectibleContractOwnership, error) { log.Debug("call to GetCollectibleOwnersByContractAddress") return api.s.collectiblesManager.FetchCollectibleOwnersByContractAddress(chainID, contractAddress) } /* Collectibles API End */ func (api *API) AddEthereumChain(ctx context.Context, network params.Network) error { log.Debug("call to AddEthereumChain") return api.s.rpcClient.NetworkManager.Upsert(&network) } func (api *API) DeleteEthereumChain(ctx context.Context, chainID uint64) error { log.Debug("call to DeleteEthereumChain") return api.s.rpcClient.NetworkManager.Delete(chainID) } func (api *API) GetEthereumChains(ctx context.Context) ([]*network.CombinedNetwork, error) { log.Debug("call to GetEthereumChains") return api.s.rpcClient.NetworkManager.GetCombinedNetworks() } // @deprecated func (api *API) FetchPrices(ctx context.Context, symbols []string, currencies []string) (map[string]map[string]float64, error) { log.Debug("call to FetchPrices") return api.s.marketManager.FetchPrices(symbols, currencies) } // @deprecated func (api *API) FetchMarketValues(ctx context.Context, symbols []string, currency string) (map[string]thirdparty.TokenMarketValues, error) { log.Debug("call to FetchMarketValues") return api.s.marketManager.FetchTokenMarketValues(symbols, currency) } func (api *API) GetHourlyMarketValues(ctx context.Context, symbol string, currency string, limit int, aggregate int) ([]thirdparty.HistoricalPrice, error) { log.Debug("call to GetHourlyMarketValues") return api.s.marketManager.FetchHistoricalHourlyPrices(symbol, currency, limit, aggregate) } func (api *API) GetDailyMarketValues(ctx context.Context, symbol string, currency string, limit int, allData bool, aggregate int) ([]thirdparty.HistoricalPrice, error) { log.Debug("call to GetDailyMarketValues") return api.s.marketManager.FetchHistoricalDailyPrices(symbol, currency, limit, allData, aggregate) } // @deprecated func (api *API) FetchTokenDetails(ctx context.Context, symbols []string) (map[string]thirdparty.TokenDetails, error) { log.Debug("call to FetchTokenDetails") return api.s.marketManager.FetchTokenDetails(symbols) } func (api *API) GetSuggestedFees(ctx context.Context, chainID uint64) (*SuggestedFees, error) { log.Debug("call to GetSuggestedFees") return api.s.feesManager.suggestedFees(ctx, chainID) } func (api *API) GetEstimatedLatestBlockNumber(ctx context.Context, chainID uint64) (uint64, error) { log.Debug("call to GetEstimatedLatestBlockNumber, chainID:", chainID) return api.s.blockChainState.GetEstimatedLatestBlockNumber(ctx, chainID) } // @deprecated func (api *API) GetTransactionEstimatedTime(ctx context.Context, chainID uint64, maxFeePerGas *big.Float) (TransactionEstimation, error) { log.Debug("call to getTransactionEstimatedTime") return api.s.feesManager.transactionEstimatedTime(ctx, chainID, maxFeePerGas), nil } func (api *API) GetSuggestedRoutes( ctx context.Context, sendType SendType, account common.Address, amountIn *hexutil.Big, tokenID string, disabledFromChainIDs, disabledToChaindIDs, preferedChainIDs []uint64, gasFeeMode GasFeeMode, fromLockedAmount map[uint64]*hexutil.Big, ) (*SuggestedRoutes, error) { log.Debug("call to GetSuggestedRoutes") return api.router.suggestedRoutes(ctx, sendType, account, amountIn.ToInt(), tokenID, disabledFromChainIDs, disabledToChaindIDs, preferedChainIDs, gasFeeMode, fromLockedAmount) } // Generates addresses for the provided paths, response doesn't include `HasActivity` value (if you need it check `GetAddressDetails` function) func (api *API) GetDerivedAddresses(ctx context.Context, password string, derivedFrom string, paths []string) ([]*DerivedAddress, error) { info, err := api.s.gethManager.AccountsGenerator().LoadAccount(derivedFrom, password) if err != nil { return nil, err } return api.getDerivedAddresses(info.ID, paths) } // Generates addresses for the provided paths derived from the provided mnemonic, response doesn't include `HasActivity` value (if you need it check `GetAddressDetails` function) func (api *API) GetDerivedAddressesForMnemonic(ctx context.Context, mnemonic string, paths []string) ([]*DerivedAddress, error) { mnemonicNoExtraSpaces := strings.Join(strings.Fields(mnemonic), " ") info, err := api.s.gethManager.AccountsGenerator().ImportMnemonic(mnemonicNoExtraSpaces, "") if err != nil { return nil, err } return api.getDerivedAddresses(info.ID, paths) } // Generates addresses for the provided paths, response doesn't include `HasActivity` value (if you need it check `GetAddressDetails` function) func (api *API) getDerivedAddresses(id string, paths []string) ([]*DerivedAddress, error) { addedAccounts, err := api.s.accountsDB.GetActiveAccounts() if err != nil { return nil, err } info, err := api.s.gethManager.AccountsGenerator().DeriveAddresses(id, paths) if err != nil { return nil, err } derivedAddresses := make([]*DerivedAddress, 0) for accPath, acc := range info { derivedAddress := &DerivedAddress{ Address: common.HexToAddress(acc.Address), PublicKey: types.Hex2Bytes(acc.PublicKey), Path: accPath, } for _, account := range addedAccounts { if types.Address(derivedAddress.Address) == account.Address { derivedAddress.AlreadyCreated = true break } } derivedAddresses = append(derivedAddresses, derivedAddress) } return derivedAddresses, nil } func (api *API) AddressExists(ctx context.Context, address types.Address) (bool, error) { return api.s.accountsDB.AddressExists(address) } // Returns details for the passed address (response doesn't include derivation path) func (api *API) GetAddressDetails(ctx context.Context, chainID uint64, address string) (*DerivedAddress, error) { result := &DerivedAddress{ Address: common.HexToAddress(address), } addressExists, err := api.s.accountsDB.AddressExists(types.Address(result.Address)) if err != nil { return result, err } result.AlreadyCreated = addressExists chainClient, err := api.s.rpcClient.EthClient(chainID) if err != nil { return result, err } balance, err := api.s.tokenManager.GetChainBalance(ctx, chainClient, result.Address) if err != nil { return result, err } result.HasActivity = balance.Cmp(big.NewInt(0)) != 0 return result, nil } func (api *API) CreateMultiTransaction(ctx context.Context, multiTransactionCommand *transfer.MultiTransactionCommand, data []*bridge.TransactionBridge, password string) (*transfer.MultiTransactionCommandResult, error) { log.Debug("[WalletAPI:: CreateMultiTransaction] create multi transaction") return api.s.transactionManager.CreateMultiTransactionFromCommand(ctx, multiTransactionCommand, data, api.router.bridges, password) } func (api *API) GetMultiTransactions(ctx context.Context, transactionIDs []transfer.MultiTransactionIDType) ([]*transfer.MultiTransaction, error) { log.Debug("wallet.api.GetMultiTransactions", "IDs.len", len(transactionIDs)) return api.s.transactionManager.GetMultiTransactions(ctx, transactionIDs) } func (api *API) GetCachedCurrencyFormats() (currency.FormatPerSymbol, error) { log.Debug("call to GetCachedCurrencyFormats") return api.s.currency.GetCachedCurrencyFormats() } func (api *API) FetchAllCurrencyFormats() (currency.FormatPerSymbol, error) { log.Debug("call to FetchAllCurrencyFormats") return api.s.currency.FetchAllCurrencyFormats() } func (api *API) FilterActivityAsync(requestID int32, addresses []common.Address, chainIDs []wcommon.ChainID, filter activity.Filter, offset int, limit int) error { log.Debug("wallet.api.FilterActivityAsync", "requestID", requestID, "addr.count", len(addresses), "chainIDs.count", len(chainIDs), "offset", offset, "limit", limit) api.s.activity.FilterActivityAsync(requestID, addresses, chainIDs, filter, offset, limit) return nil } func (api *API) GetMultiTxDetails(ctx context.Context, multiTxID int) (*activity.EntryDetails, error) { log.Debug("wallet.api.GetMultiTxDetails", "multiTxID", multiTxID) return api.s.activity.GetMultiTxDetails(ctx, multiTxID) } func (api *API) GetTxDetails(ctx context.Context, id string) (*activity.EntryDetails, error) { log.Debug("wallet.api.GetTxDetails", "id", id) return api.s.activity.GetTxDetails(ctx, id) } func (api *API) GetRecipientsAsync(requestID int32, offset int, limit int) (ignored bool, err error) { log.Debug("wallet.api.GetRecipientsAsync", "offset", offset, "limit", limit) ignored = api.s.activity.GetRecipientsAsync(requestID, offset, limit) return ignored, err } func (api *API) GetOldestActivityTimestampAsync(requestID int32, addresses []common.Address) error { log.Debug("wallet.api.GetOldestActivityTimestamp", "addresses.len", len(addresses)) api.s.activity.GetOldestTimestampAsync(requestID, addresses) return nil } func (api *API) FetchChainIDForURL(ctx context.Context, rpcURL string) (*big.Int, error) { log.Debug("wallet.api.VerifyURL", rpcURL) rpcClient, err := gethrpc.Dial(rpcURL) if err != nil { return nil, fmt.Errorf("dial upstream server: %s", err) } client := ethclient.NewClient(rpcClient) return client.ChainID(ctx) }