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// Copyright 2018 The dexon-consensus-core Authors
// This file is part of the dexon-consensus-core library.
//
// The dexon-consensus-core library is free software: you can redistribute it
// and/or modify it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation, either version 3 of the License,
// or (at your option) any later version.
//
// The dexon-consensus-core library is distributed in the hope that it will be
// useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
// General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the dexon-consensus-core library. If not, see
// <http://www.gnu.org/licenses/>.
// A simple monkey that sends random transactions into the network.
package main
import (
"context"
"flag"
"fmt"
"math/big"
"math/rand"
"time"
"github.com/dexon-foundation/dexon/common"
"github.com/dexon-foundation/dexon/core/types"
"github.com/dexon-foundation/dexon/crypto"
"github.com/dexon-foundation/dexon/ethclient"
)
var key = flag.String("key", "", "private key path")
var endpoint = flag.String("endpoint", "http://localhost:8545", "JSON RPC endpoint")
var tps = flag.Int("tps", 10, "transactions per second")
func randomAddress() common.Address {
x := common.Address{}
for i := 0; i < 20; i++ {
x[i] = byte(rand.Int31() % 16)
}
return x
}
func main() {
flag.Parse()
privKey, err := crypto.LoadECDSA(*key)
if err != nil {
panic(err)
}
client, err := ethclient.Dial(*endpoint)
if err != nil {
panic(err)
}
address := crypto.PubkeyToAddress(privKey.PublicKey)
nonce, err := client.PendingNonceAt(context.Background(), address)
if err != nil {
panic(err)
}
for {
tx := types.NewTransaction(
nonce,
randomAddress(),
big.NewInt(10),
uint64(21000),
big.NewInt(1e9),
nil)
signer := types.NewEIP155Signer(big.NewInt(237))
tx, err = types.SignTx(tx, signer, privKey)
if err != nil {
panic(err)
}
err := client.SendTransaction(context.Background(), tx)
if err != nil {
panic(err)
}
fmt.Println("Sending TX", "fullhash", tx.Hash().String())
nonce++
time.Sleep(time.Duration(float32(time.Second) / float32(*tps)))
}
}
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