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tx_args.go
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tx_args.go
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package brtapi
import (
"bytes"
"context"
"errors"
"github.com/BerithFoundation/berith-chain/common"
"github.com/BerithFoundation/berith-chain/common/hexutil"
"github.com/BerithFoundation/berith-chain/core/types"
"math/big"
)
var defaultGas uint64 = 90000 // default transaction gas value
// [BERITH]
// SendTxArgs represents the arguments to sumbit a new transaction into the transaction pool.
// Specify the tx type by putting Base and Target in the existing transaction structure.
type SendTxArgs struct {
From common.Address `json:"from"`
To *common.Address `json:"to"`
Gas *hexutil.Uint64 `json:"gas"`
GasPrice *hexutil.Big `json:"gasPrice"`
Value *hexutil.Big `json:"value"`
Nonce *hexutil.Uint64 `json:"nonce"`
// We accept "data" and "input" for backwards-compatibility reasons. "input" is the
// newer name and should be preferred by clients.
Data *hexutil.Bytes `json:"data"`
Input *hexutil.Bytes `json:"input"`
Base types.JobWallet `json:"base"`
Target types.JobWallet `json:"target"`
}
// setDefaults is a helper function that fills in default values for unspecified tx fields.
func (args *SendTxArgs) setDefaults(ctx context.Context, b Backend) error {
if args.Gas == nil {
args.Gas = (*hexutil.Uint64)(&defaultGas)
}
if args.GasPrice == nil {
price, err := b.SuggestPrice(ctx)
if err != nil {
return err
}
args.GasPrice = (*hexutil.Big)(price)
}
if args.Value == nil {
args.Value = new(hexutil.Big)
}
if args.Nonce == nil {
nonce, err := b.GetPoolNonce(ctx, args.From)
if err != nil {
return err
}
args.Nonce = (*hexutil.Uint64)(&nonce)
}
if args.Data != nil && args.Input != nil && !bytes.Equal(*args.Data, *args.Input) {
return errors.New(`Both "data" and "input" are set and not equal. Please use "input" to pass transaction call data.`)
}
if args.To == nil {
// Contract creation
var input []byte
if args.Data != nil {
input = *args.Data
} else if args.Input != nil {
input = *args.Input
}
if len(input) == 0 {
return errors.New(`contract creation without any data provided`)
}
}
return nil
}
// toTransaction create a transaction using parameters
func (args *SendTxArgs) toTransaction() *types.Transaction {
var input []byte
if args.Data != nil {
input = *args.Data
} else if args.Input != nil {
input = *args.Input
}
if args.To == nil {
return types.NewContractCreation(uint64(*args.Nonce), (*big.Int)(args.Value), uint64(*args.Gas), (*big.Int)(args.GasPrice), input, args.Base, args.Target)
}
return types.NewTransaction(uint64(*args.Nonce), *args.To, (*big.Int)(args.Value), uint64(*args.Gas), (*big.Int)(args.GasPrice), input, args.Base, args.Target)
}