788 lines
20 KiB
Go
788 lines
20 KiB
Go
package chain
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import (
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"context"
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"fmt"
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"math/big"
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"strings"
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"sync"
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"time"
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"github.com/afex/hystrix-go/hystrix"
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"github.com/ethereum/go-ethereum"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/common/hexutil"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/core/vm"
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"github.com/ethereum/go-ethereum/ethclient"
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"github.com/ethereum/go-ethereum/rpc"
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"github.com/status-im/status-go/services/rpcstats"
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)
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type FeeHistory struct {
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BaseFeePerGas []string `json:"baseFeePerGas"`
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}
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type ClientWithFallback struct {
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ChainID uint64
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main *ethclient.Client
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fallback *ethclient.Client
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mainRPC *rpc.Client
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fallbackRPC *rpc.Client
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WalletNotifier func(chainId uint64, message string)
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IsConnected bool
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IsConnectedLock sync.RWMutex
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LastCheckedAt int64
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}
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var vmErrors = []error{
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vm.ErrOutOfGas,
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vm.ErrCodeStoreOutOfGas,
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vm.ErrDepth,
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vm.ErrInsufficientBalance,
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vm.ErrContractAddressCollision,
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vm.ErrExecutionReverted,
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vm.ErrMaxCodeSizeExceeded,
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vm.ErrInvalidJump,
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vm.ErrWriteProtection,
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vm.ErrReturnDataOutOfBounds,
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vm.ErrGasUintOverflow,
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vm.ErrInvalidCode,
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vm.ErrNonceUintOverflow,
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}
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type CommandResult struct {
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res1 any
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res2 any
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vmError error
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}
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func NewSimpleClient(main *rpc.Client, chainID uint64) *ClientWithFallback {
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hystrix.ConfigureCommand(fmt.Sprintf("ethClient_%d", chainID), hystrix.CommandConfig{
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Timeout: 10000,
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MaxConcurrentRequests: 100,
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SleepWindow: 300000,
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ErrorPercentThreshold: 25,
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})
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return &ClientWithFallback{
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ChainID: chainID,
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main: ethclient.NewClient(main),
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fallback: nil,
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mainRPC: main,
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fallbackRPC: nil,
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IsConnected: true,
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LastCheckedAt: time.Now().Unix(),
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}
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}
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func NewClient(main, fallback *rpc.Client, chainID uint64) *ClientWithFallback {
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hystrix.ConfigureCommand(fmt.Sprintf("ethClient_%d", chainID), hystrix.CommandConfig{
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Timeout: 20000,
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MaxConcurrentRequests: 100,
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SleepWindow: 300000,
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ErrorPercentThreshold: 25,
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})
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var fallbackEthClient *ethclient.Client
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if fallback != nil {
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fallbackEthClient = ethclient.NewClient(fallback)
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}
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return &ClientWithFallback{
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ChainID: chainID,
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main: ethclient.NewClient(main),
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fallback: fallbackEthClient,
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mainRPC: main,
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fallbackRPC: fallback,
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IsConnected: true,
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LastCheckedAt: time.Now().Unix(),
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}
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}
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func (c *ClientWithFallback) Close() {
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c.main.Close()
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if c.fallback != nil {
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c.fallback.Close()
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}
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}
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func isVMError(err error) bool {
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if strings.HasPrefix(err.Error(), "execution reverted") {
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return true
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}
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for _, vmError := range vmErrors {
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if err == vmError {
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return true
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}
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}
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return false
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}
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func (c *ClientWithFallback) setIsConnected(value bool) {
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c.IsConnectedLock.Lock()
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defer c.IsConnectedLock.Unlock()
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c.LastCheckedAt = time.Now().Unix()
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if value != c.IsConnected {
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message := "down"
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if value {
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message = "up"
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}
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if c.WalletNotifier != nil {
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c.WalletNotifier(c.ChainID, message)
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}
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}
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c.IsConnected = value
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}
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func (c *ClientWithFallback) makeCallNoReturn(main func() error, fallback func() error) error {
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resultChan := make(chan CommandResult, 1)
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c.LastCheckedAt = time.Now().Unix()
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errChan := hystrix.Go(fmt.Sprintf("ethClient_%d", c.ChainID), func() error {
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err := main()
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if err != nil {
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if isVMError(err) {
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resultChan <- CommandResult{vmError: err}
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return nil
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}
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return err
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}
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c.setIsConnected(true)
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resultChan <- CommandResult{}
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return nil
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}, func(err error) error {
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if c.fallback == nil {
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return err
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}
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err = fallback()
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if err != nil {
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if isVMError(err) {
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resultChan <- CommandResult{vmError: err}
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return nil
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}
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c.setIsConnected(false)
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return err
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}
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resultChan <- CommandResult{}
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return nil
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})
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select {
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case result := <-resultChan:
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if result.vmError != nil {
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return result.vmError
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}
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return nil
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case err := <-errChan:
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return err
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}
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}
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func (c *ClientWithFallback) makeCallSingleReturn(main func() (any, error), fallback func() (any, error)) (any, error) {
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resultChan := make(chan CommandResult, 1)
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c.LastCheckedAt = time.Now().Unix()
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errChan := hystrix.Go(fmt.Sprintf("ethClient_%d", c.ChainID), func() error {
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res, err := main()
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if err != nil {
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if isVMError(err) {
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resultChan <- CommandResult{vmError: err}
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return nil
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}
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return err
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}
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c.setIsConnected(true)
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resultChan <- CommandResult{res1: res}
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return nil
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}, func(err error) error {
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if c.fallback == nil {
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return err
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}
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res, err := fallback()
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if err != nil {
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if isVMError(err) {
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resultChan <- CommandResult{vmError: err}
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return nil
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}
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c.setIsConnected(false)
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return err
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}
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c.setIsConnected(true)
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resultChan <- CommandResult{res1: res}
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return nil
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})
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select {
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case result := <-resultChan:
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if result.vmError != nil {
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return nil, result.vmError
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}
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return result.res1, nil
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case err := <-errChan:
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return nil, err
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}
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}
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func (c *ClientWithFallback) makeCallDoubleReturn(main func() (any, any, error), fallback func() (any, any, error)) (any, any, error) {
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resultChan := make(chan CommandResult, 1)
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c.LastCheckedAt = time.Now().Unix()
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errChan := hystrix.Go(fmt.Sprintf("ethClient_%d", c.ChainID), func() error {
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a, b, err := main()
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if err != nil {
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if isVMError(err) {
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resultChan <- CommandResult{vmError: err}
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return nil
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}
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return err
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}
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c.setIsConnected(true)
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resultChan <- CommandResult{res1: a, res2: b}
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return nil
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}, func(err error) error {
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if c.fallback == nil {
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return err
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}
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a, b, err := fallback()
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if err != nil {
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if isVMError(err) {
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resultChan <- CommandResult{vmError: err}
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return nil
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}
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c.setIsConnected(false)
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return err
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}
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c.setIsConnected(true)
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resultChan <- CommandResult{res1: a, res2: b}
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return nil
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})
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select {
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case result := <-resultChan:
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if result.vmError != nil {
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return nil, nil, result.vmError
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}
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return result.res1, result.res2, nil
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case err := <-errChan:
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return nil, nil, err
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}
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}
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func (c *ClientWithFallback) BlockByHash(ctx context.Context, hash common.Hash) (*types.Block, error) {
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rpcstats.CountCall("eth_BlockByHash")
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block, err := c.makeCallSingleReturn(
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func() (any, error) { return c.main.BlockByHash(ctx, hash) },
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func() (any, error) { return c.fallback.BlockByHash(ctx, hash) },
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)
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if err != nil {
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return nil, err
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}
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return block.(*types.Block), nil
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}
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func (c *ClientWithFallback) BlockByNumber(ctx context.Context, number *big.Int) (*types.Block, error) {
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rpcstats.CountCall("eth_BlockByNumber")
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block, err := c.makeCallSingleReturn(
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func() (any, error) { return c.main.BlockByNumber(ctx, number) },
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func() (any, error) { return c.fallback.BlockByNumber(ctx, number) },
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)
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if err != nil {
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return nil, err
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}
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return block.(*types.Block), nil
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}
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func (c *ClientWithFallback) BlockNumber(ctx context.Context) (uint64, error) {
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rpcstats.CountCall("eth_BlockNumber")
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number, err := c.makeCallSingleReturn(
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func() (any, error) { return c.main.BlockNumber(ctx) },
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func() (any, error) { return c.fallback.BlockNumber(ctx) },
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)
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if err != nil {
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return 0, err
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}
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return number.(uint64), nil
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}
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func (c *ClientWithFallback) PeerCount(ctx context.Context) (uint64, error) {
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rpcstats.CountCall("eth_PeerCount")
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peerCount, err := c.makeCallSingleReturn(
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func() (any, error) { return c.main.PeerCount(ctx) },
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func() (any, error) { return c.fallback.PeerCount(ctx) },
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)
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if err != nil {
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return 0, err
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}
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return peerCount.(uint64), nil
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}
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func (c *ClientWithFallback) HeaderByHash(ctx context.Context, hash common.Hash) (*types.Header, error) {
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rpcstats.CountCall("eth_HeaderByHash")
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header, err := c.makeCallSingleReturn(
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func() (any, error) { return c.main.HeaderByHash(ctx, hash) },
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func() (any, error) { return c.fallback.HeaderByHash(ctx, hash) },
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)
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if err != nil {
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return nil, err
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}
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return header.(*types.Header), nil
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}
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func (c *ClientWithFallback) HeaderByNumber(ctx context.Context, number *big.Int) (*types.Header, error) {
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rpcstats.CountCall("eth_HeaderByNumber")
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header, err := c.makeCallSingleReturn(
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func() (any, error) { return c.main.HeaderByNumber(ctx, number) },
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func() (any, error) { return c.fallback.HeaderByNumber(ctx, number) },
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)
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if err != nil {
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return nil, err
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}
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return header.(*types.Header), nil
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}
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func (c *ClientWithFallback) TransactionByHash(ctx context.Context, hash common.Hash) (*types.Transaction, bool, error) {
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rpcstats.CountCall("eth_TransactionByHash")
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tx, isPending, err := c.makeCallDoubleReturn(
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func() (any, any, error) { return c.main.TransactionByHash(ctx, hash) },
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func() (any, any, error) { return c.fallback.TransactionByHash(ctx, hash) },
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)
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if err != nil {
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return nil, false, err
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}
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return tx.(*types.Transaction), isPending.(bool), nil
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}
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func (c *ClientWithFallback) TransactionSender(ctx context.Context, tx *types.Transaction, block common.Hash, index uint) (common.Address, error) {
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rpcstats.CountCall("eth_TransactionSender")
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address, err := c.makeCallSingleReturn(
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func() (any, error) { return c.main.TransactionSender(ctx, tx, block, index) },
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func() (any, error) { return c.fallback.TransactionSender(ctx, tx, block, index) },
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)
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return address.(common.Address), err
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}
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func (c *ClientWithFallback) TransactionCount(ctx context.Context, blockHash common.Hash) (uint, error) {
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rpcstats.CountCall("eth_TransactionCount")
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count, err := c.makeCallSingleReturn(
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func() (any, error) { return c.main.TransactionCount(ctx, blockHash) },
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func() (any, error) { return c.fallback.TransactionCount(ctx, blockHash) },
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)
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if err != nil {
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return 0, err
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}
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return count.(uint), nil
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}
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func (c *ClientWithFallback) TransactionInBlock(ctx context.Context, blockHash common.Hash, index uint) (*types.Transaction, error) {
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rpcstats.CountCall("eth_TransactionInBlock")
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transactions, err := c.makeCallSingleReturn(
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func() (any, error) { return c.main.TransactionInBlock(ctx, blockHash, index) },
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func() (any, error) { return c.fallback.TransactionInBlock(ctx, blockHash, index) },
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)
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if err != nil {
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return nil, err
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}
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return transactions.(*types.Transaction), nil
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}
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func (c *ClientWithFallback) TransactionReceipt(ctx context.Context, txHash common.Hash) (*types.Receipt, error) {
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rpcstats.CountCall("eth_TransactionReceipt")
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receipt, err := c.makeCallSingleReturn(
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func() (any, error) { return c.main.TransactionReceipt(ctx, txHash) },
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func() (any, error) { return c.fallback.TransactionReceipt(ctx, txHash) },
|
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)
|
|
|
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if err != nil {
|
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return nil, err
|
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}
|
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|
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return receipt.(*types.Receipt), nil
|
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}
|
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|
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func (c *ClientWithFallback) SyncProgress(ctx context.Context) (*ethereum.SyncProgress, error) {
|
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rpcstats.CountCall("eth_SyncProgress")
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|
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progress, err := c.makeCallSingleReturn(
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func() (any, error) { return c.main.SyncProgress(ctx) },
|
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func() (any, error) { return c.fallback.SyncProgress(ctx) },
|
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)
|
|
|
|
if err != nil {
|
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return nil, err
|
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}
|
|
|
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return progress.(*ethereum.SyncProgress), nil
|
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}
|
|
|
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func (c *ClientWithFallback) SubscribeNewHead(ctx context.Context, ch chan<- *types.Header) (ethereum.Subscription, error) {
|
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rpcstats.CountCall("eth_SubscribeNewHead")
|
|
|
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sub, err := c.makeCallSingleReturn(
|
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func() (any, error) { return c.main.SubscribeNewHead(ctx, ch) },
|
|
func() (any, error) { return c.fallback.SubscribeNewHead(ctx, ch) },
|
|
)
|
|
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return sub.(ethereum.Subscription), nil
|
|
}
|
|
|
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func (c *ClientWithFallback) NetworkID(ctx context.Context) (*big.Int, error) {
|
|
rpcstats.CountCall("eth_NetworkID")
|
|
|
|
networkID, err := c.makeCallSingleReturn(
|
|
func() (any, error) { return c.main.NetworkID(ctx) },
|
|
func() (any, error) { return c.fallback.NetworkID(ctx) },
|
|
)
|
|
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return networkID.(*big.Int), nil
|
|
}
|
|
|
|
func (c *ClientWithFallback) BalanceAt(ctx context.Context, account common.Address, blockNumber *big.Int) (*big.Int, error) {
|
|
rpcstats.CountCall("eth_BalanceAt")
|
|
|
|
balance, err := c.makeCallSingleReturn(
|
|
func() (any, error) { return c.main.BalanceAt(ctx, account, blockNumber) },
|
|
func() (any, error) { return c.fallback.BalanceAt(ctx, account, blockNumber) },
|
|
)
|
|
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return balance.(*big.Int), nil
|
|
}
|
|
|
|
func (c *ClientWithFallback) StorageAt(ctx context.Context, account common.Address, key common.Hash, blockNumber *big.Int) ([]byte, error) {
|
|
rpcstats.CountCall("eth_StorageAt")
|
|
|
|
storage, err := c.makeCallSingleReturn(
|
|
func() (any, error) { return c.main.StorageAt(ctx, account, key, blockNumber) },
|
|
func() (any, error) { return c.fallback.StorageAt(ctx, account, key, blockNumber) },
|
|
)
|
|
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return storage.([]byte), nil
|
|
}
|
|
|
|
func (c *ClientWithFallback) CodeAt(ctx context.Context, account common.Address, blockNumber *big.Int) ([]byte, error) {
|
|
rpcstats.CountCall("eth_CodeAt")
|
|
|
|
code, err := c.makeCallSingleReturn(
|
|
func() (any, error) { return c.main.CodeAt(ctx, account, blockNumber) },
|
|
func() (any, error) { return c.fallback.CodeAt(ctx, account, blockNumber) },
|
|
)
|
|
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return code.([]byte), nil
|
|
}
|
|
|
|
func (c *ClientWithFallback) NonceAt(ctx context.Context, account common.Address, blockNumber *big.Int) (uint64, error) {
|
|
rpcstats.CountCall("eth_NonceAt")
|
|
|
|
nonce, err := c.makeCallSingleReturn(
|
|
func() (any, error) { return c.main.NonceAt(ctx, account, blockNumber) },
|
|
func() (any, error) { return c.fallback.NonceAt(ctx, account, blockNumber) },
|
|
)
|
|
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
|
|
return nonce.(uint64), nil
|
|
}
|
|
|
|
func (c *ClientWithFallback) FilterLogs(ctx context.Context, q ethereum.FilterQuery) ([]types.Log, error) {
|
|
rpcstats.CountCall("eth_FilterLogs")
|
|
|
|
logs, err := c.makeCallSingleReturn(
|
|
func() (any, error) { return c.main.FilterLogs(ctx, q) },
|
|
func() (any, error) { return c.fallback.FilterLogs(ctx, q) },
|
|
)
|
|
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return logs.([]types.Log), nil
|
|
}
|
|
|
|
func (c *ClientWithFallback) SubscribeFilterLogs(ctx context.Context, q ethereum.FilterQuery, ch chan<- types.Log) (ethereum.Subscription, error) {
|
|
rpcstats.CountCall("eth_SubscribeFilterLogs")
|
|
|
|
sub, err := c.makeCallSingleReturn(
|
|
func() (any, error) { return c.main.SubscribeFilterLogs(ctx, q, ch) },
|
|
func() (any, error) { return c.fallback.SubscribeFilterLogs(ctx, q, ch) },
|
|
)
|
|
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return sub.(ethereum.Subscription), nil
|
|
}
|
|
|
|
func (c *ClientWithFallback) PendingBalanceAt(ctx context.Context, account common.Address) (*big.Int, error) {
|
|
rpcstats.CountCall("eth_PendingBalanceAt")
|
|
|
|
balance, err := c.makeCallSingleReturn(
|
|
func() (any, error) { return c.main.PendingBalanceAt(ctx, account) },
|
|
func() (any, error) { return c.fallback.PendingBalanceAt(ctx, account) },
|
|
)
|
|
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return balance.(*big.Int), nil
|
|
}
|
|
|
|
func (c *ClientWithFallback) PendingStorageAt(ctx context.Context, account common.Address, key common.Hash) ([]byte, error) {
|
|
rpcstats.CountCall("eth_PendingStorageAt")
|
|
|
|
storage, err := c.makeCallSingleReturn(
|
|
func() (any, error) { return c.main.PendingStorageAt(ctx, account, key) },
|
|
func() (any, error) { return c.fallback.PendingStorageAt(ctx, account, key) },
|
|
)
|
|
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return storage.([]byte), nil
|
|
}
|
|
|
|
func (c *ClientWithFallback) PendingCodeAt(ctx context.Context, account common.Address) ([]byte, error) {
|
|
rpcstats.CountCall("eth_PendingCodeAt")
|
|
|
|
code, err := c.makeCallSingleReturn(
|
|
func() (any, error) { return c.main.PendingCodeAt(ctx, account) },
|
|
func() (any, error) { return c.fallback.PendingCodeAt(ctx, account) },
|
|
)
|
|
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return code.([]byte), nil
|
|
}
|
|
|
|
func (c *ClientWithFallback) PendingNonceAt(ctx context.Context, account common.Address) (uint64, error) {
|
|
rpcstats.CountCall("eth_PendingNonceAt")
|
|
|
|
nonce, err := c.makeCallSingleReturn(
|
|
func() (any, error) { return c.main.PendingNonceAt(ctx, account) },
|
|
func() (any, error) { return c.fallback.PendingNonceAt(ctx, account) },
|
|
)
|
|
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
|
|
return nonce.(uint64), nil
|
|
}
|
|
|
|
func (c *ClientWithFallback) PendingTransactionCount(ctx context.Context) (uint, error) {
|
|
rpcstats.CountCall("eth_PendingTransactionCount")
|
|
|
|
count, err := c.makeCallSingleReturn(
|
|
func() (any, error) { return c.main.PendingTransactionCount(ctx) },
|
|
func() (any, error) { return c.fallback.PendingTransactionCount(ctx) },
|
|
)
|
|
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
|
|
return count.(uint), nil
|
|
}
|
|
|
|
func (c *ClientWithFallback) CallContract(ctx context.Context, msg ethereum.CallMsg, blockNumber *big.Int) ([]byte, error) {
|
|
rpcstats.CountCall("eth_CallContract")
|
|
|
|
data, err := c.makeCallSingleReturn(
|
|
func() (any, error) { return c.main.CallContract(ctx, msg, blockNumber) },
|
|
func() (any, error) { return c.fallback.CallContract(ctx, msg, blockNumber) },
|
|
)
|
|
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return data.([]byte), nil
|
|
}
|
|
|
|
func (c *ClientWithFallback) CallContractAtHash(ctx context.Context, msg ethereum.CallMsg, blockHash common.Hash) ([]byte, error) {
|
|
rpcstats.CountCall("eth_CallContractAtHash")
|
|
|
|
data, err := c.makeCallSingleReturn(
|
|
func() (any, error) { return c.main.CallContractAtHash(ctx, msg, blockHash) },
|
|
func() (any, error) { return c.fallback.CallContractAtHash(ctx, msg, blockHash) },
|
|
)
|
|
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return data.([]byte), nil
|
|
}
|
|
|
|
func (c *ClientWithFallback) PendingCallContract(ctx context.Context, msg ethereum.CallMsg) ([]byte, error) {
|
|
rpcstats.CountCall("eth_PendingCallContract")
|
|
|
|
data, err := c.makeCallSingleReturn(
|
|
func() (any, error) { return c.main.PendingCallContract(ctx, msg) },
|
|
func() (any, error) { return c.fallback.PendingCallContract(ctx, msg) },
|
|
)
|
|
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return data.([]byte), nil
|
|
}
|
|
|
|
func (c *ClientWithFallback) SuggestGasPrice(ctx context.Context) (*big.Int, error) {
|
|
rpcstats.CountCall("eth_SuggestGasPrice")
|
|
|
|
gasPrice, err := c.makeCallSingleReturn(
|
|
func() (any, error) { return c.main.SuggestGasPrice(ctx) },
|
|
func() (any, error) { return c.fallback.SuggestGasPrice(ctx) },
|
|
)
|
|
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return gasPrice.(*big.Int), nil
|
|
}
|
|
|
|
func (c *ClientWithFallback) SuggestGasTipCap(ctx context.Context) (*big.Int, error) {
|
|
rpcstats.CountCall("eth_SuggestGasTipCap")
|
|
|
|
tip, err := c.makeCallSingleReturn(
|
|
func() (any, error) { return c.main.SuggestGasTipCap(ctx) },
|
|
func() (any, error) { return c.fallback.SuggestGasTipCap(ctx) },
|
|
)
|
|
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return tip.(*big.Int), nil
|
|
}
|
|
|
|
func (c *ClientWithFallback) FeeHistory(ctx context.Context, blockCount uint64, lastBlock *big.Int, rewardPercentiles []float64) (*ethereum.FeeHistory, error) {
|
|
rpcstats.CountCall("eth_FeeHistory")
|
|
|
|
feeHistory, err := c.makeCallSingleReturn(
|
|
func() (any, error) { return c.main.FeeHistory(ctx, blockCount, lastBlock, rewardPercentiles) },
|
|
func() (any, error) { return c.fallback.FeeHistory(ctx, blockCount, lastBlock, rewardPercentiles) },
|
|
)
|
|
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return feeHistory.(*ethereum.FeeHistory), nil
|
|
}
|
|
|
|
func (c *ClientWithFallback) EstimateGas(ctx context.Context, msg ethereum.CallMsg) (uint64, error) {
|
|
rpcstats.CountCall("eth_EstimateGas")
|
|
|
|
estimate, err := c.makeCallSingleReturn(
|
|
func() (any, error) { return c.main.EstimateGas(ctx, msg) },
|
|
func() (any, error) { return c.fallback.EstimateGas(ctx, msg) },
|
|
)
|
|
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
|
|
return estimate.(uint64), nil
|
|
}
|
|
|
|
func (c *ClientWithFallback) SendTransaction(ctx context.Context, tx *types.Transaction) error {
|
|
rpcstats.CountCall("eth_SendTransaction")
|
|
|
|
return c.makeCallNoReturn(
|
|
func() error { return c.main.SendTransaction(ctx, tx) },
|
|
func() error { return c.fallback.SendTransaction(ctx, tx) },
|
|
)
|
|
}
|
|
|
|
func (c *ClientWithFallback) CallContext(ctx context.Context, result interface{}, method string, args ...interface{}) error {
|
|
rpcstats.CountCall("eth_CallContext")
|
|
|
|
return c.makeCallNoReturn(
|
|
func() error { return c.mainRPC.CallContext(ctx, result, method, args...) },
|
|
func() error { return c.fallbackRPC.CallContext(ctx, result, method, args...) },
|
|
)
|
|
}
|
|
|
|
func (c *ClientWithFallback) ToBigInt() *big.Int {
|
|
return big.NewInt(int64(c.ChainID))
|
|
}
|
|
|
|
func (c *ClientWithFallback) GetBaseFeeFromBlock(blockNumber *big.Int) (string, error) {
|
|
rpcstats.CountCall("eth_GetBaseFeeFromBlock")
|
|
var feeHistory FeeHistory
|
|
err := c.mainRPC.Call(&feeHistory, "eth_feeHistory", "0x1", (*hexutil.Big)(blockNumber), nil)
|
|
if err != nil {
|
|
if err.Error() == "the method eth_feeHistory does not exist/is not available" {
|
|
return "", nil
|
|
}
|
|
return "", err
|
|
}
|
|
|
|
var baseGasFee string = ""
|
|
if len(feeHistory.BaseFeePerGas) > 0 {
|
|
baseGasFee = feeHistory.BaseFeePerGas[0]
|
|
}
|
|
|
|
return baseGasFee, err
|
|
}
|