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task.eth_call.go
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/
task.eth_call.go
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package pipeline
import (
"context"
"time"
"github.com/ethereum/go-ethereum"
"github.com/ethereum/go-ethereum/common"
"github.com/pkg/errors"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promauto"
"go.uber.org/multierr"
"github.com/smartcontractkit/chainlink/core/chains/evm"
evmclient "github.com/smartcontractkit/chainlink/core/chains/evm/client"
"github.com/smartcontractkit/chainlink/core/logger"
"github.com/smartcontractkit/chainlink/core/utils"
)
//
// Return types:
// []byte
//
type ETHCallTask struct {
BaseTask `mapstructure:",squash"`
Contract string `json:"contract"`
From string `json:"from"`
Data string `json:"data"`
Gas string `json:"gas"`
GasPrice string `json:"gasPrice"`
GasTipCap string `json:"gasTipCap"`
GasFeeCap string `json:"gasFeeCap"`
ExtractRevertReason bool `json:"extractRevertReason"`
EVMChainID string `json:"evmChainID" mapstructure:"evmChainID"`
chainSet evm.ChainSet
config Config
}
var _ Task = (*ETHCallTask)(nil)
var (
promETHCallTime = promauto.NewGaugeVec(prometheus.GaugeOpts{
Name: "pipeline_task_eth_call_execution_time",
Help: "Time taken to fully execute the ETH call",
},
[]string{"pipeline_task_spec_id"},
)
)
func (t *ETHCallTask) Type() TaskType {
return TaskTypeETHCall
}
func (t *ETHCallTask) Run(ctx context.Context, lggr logger.Logger, vars Vars, inputs []Result) (result Result, runInfo RunInfo) {
_, err := CheckInputs(inputs, -1, -1, 0)
if err != nil {
return Result{Error: errors.Wrap(err, "task inputs")}, runInfo
}
var (
contractAddr AddressParam
from AddressParam
data BytesParam
gas Uint64Param
gasPrice MaybeBigIntParam
gasTipCap MaybeBigIntParam
gasFeeCap MaybeBigIntParam
chainID StringParam
)
err = multierr.Combine(
errors.Wrap(ResolveParam(&contractAddr, From(VarExpr(t.Contract, vars), NonemptyString(t.Contract))), "contract"),
errors.Wrap(ResolveParam(&from, From(VarExpr(t.From, vars), NonemptyString(t.From), utils.ZeroAddress)), "from"),
errors.Wrap(ResolveParam(&data, From(VarExpr(t.Data, vars), JSONWithVarExprs(t.Data, vars, false))), "data"),
errors.Wrap(ResolveParam(&gas, From(VarExpr(t.Gas, vars), NonemptyString(t.Gas), 0)), "gas"),
errors.Wrap(ResolveParam(&gasPrice, From(VarExpr(t.GasPrice, vars), t.GasPrice)), "gasPrice"),
errors.Wrap(ResolveParam(&gasTipCap, From(VarExpr(t.GasTipCap, vars), t.GasTipCap)), "gasTipCap"),
errors.Wrap(ResolveParam(&gasFeeCap, From(VarExpr(t.GasFeeCap, vars), t.GasFeeCap)), "gasFeeCap"),
errors.Wrap(ResolveParam(&chainID, From(VarExpr(t.EVMChainID, vars), NonemptyString(t.EVMChainID), "")), "evmChainID"),
)
if err != nil {
return Result{Error: err}, runInfo
} else if len(data) == 0 {
return Result{Error: errors.Wrapf(ErrBadInput, "data param must not be empty")}, runInfo
}
call := ethereum.CallMsg{
To: (*common.Address)(&contractAddr),
From: (common.Address)(from),
Data: []byte(data),
Gas: uint64(gas),
GasPrice: gasPrice.BigInt(),
GasTipCap: gasTipCap.BigInt(),
GasFeeCap: gasFeeCap.BigInt(),
}
lggr = lggr.With("gas", call.Gas).
With("gasPrice", call.GasPrice).
With("gasTipCap", call.GasTipCap).
With("gasFeeCap", call.GasFeeCap)
chain, err := getChainByString(t.chainSet, string(chainID))
if err != nil {
lggr.Errorf("Invalid chain ID %s", chainID)
return Result{Error: err}, runInfo
}
start := time.Now()
resp, err := chain.Client().CallContract(ctx, call, nil)
elapsed := time.Since(start)
if err != nil {
if t.ExtractRevertReason {
err = t.retrieveRevertReason(err, lggr)
}
return Result{Error: err}, retryableRunInfo()
}
promETHCallTime.WithLabelValues(t.DotID()).Set(float64(elapsed))
return Result{Value: resp}, runInfo
}
func (t *ETHCallTask) retrieveRevertReason(baseErr error, lggr logger.Logger) error {
reason, err := evmclient.ExtractRevertReasonFromRPCError(baseErr)
if err != nil {
lggr.Warnw("failed to extract revert reason", "baseErr", baseErr, "error", err)
return baseErr
}
return errors.Wrap(baseErr, reason)
}