Flashbots RPC client
Fork of ethrpc with additional Flashbots RPC methods:
FlashbotsCallBundle(eth_callBundle)FlashbotsSendBundle(eth_sendBundle)FlashbotsGetUserStats(flashbots_getUserStats)FlashbotsSendPrivateTransaction(eth_sendPrivateTransaction)FlashbotsCancelPrivateTransaction(eth_cancelPrivateTransaction)FlashbotsSimulateBlock: simulate a full block
Usage
Add library to your project:
go get github.com/metachris/flashbotsrpc
Create a new private key here for testing (you probably want to use an existing one):
privateKey, _ := crypto.GenerateKey()Simulate transactions with eth_callBundle:
callBundleArgs := flashbotsrpc.FlashbotsCallBundleParam{
Txs: []string{"YOUR_RAW_TX"},
BlockNumber: fmt.Sprintf("0x%x", 13281018),
StateBlockNumber: "latest",
}
result, err := rpc.FlashbotsCallBundle(privateKey, callBundleArgs)
if err != nil {
log.Fatal(err)
}
fmt.Printf("%+v\n", result)Get Flashbots user stats:
rpc := flashbotsrpc.New("https://relay.flashbots.net")
result, err := rpc.FlashbotsGetUserStats(privateKey, 13281018)
if err != nil {
log.Fatal(err)
}
fmt.Printf("%+v\n", result)Send a transaction bundle to Flashbots with eth_sendBundle:
sendBundleArgs := flashbotsrpc.FlashbotsSendBundleRequest{
Txs: []string{"YOUR_RAW_TX"},
BlockNumber: fmt.Sprintf("0x%x", 13281018),
}
result, err := rpc.FlashbotsSendBundle(privateKey, sendBundleArgs)
if err != nil {
log.Fatal(err)
}
fmt.Printf("%+v\n", result)Send a transaction bundle to a list of Builder endpoints with eth_sendBundle (full example [/examples/broadcastbundle]):
urls := []string{
"https://relay.flashbots.net",
// Refer to https://www.mev.to/builders for builder endpoints
}
rpc := flashbotsrpc.NewBuilderBroadcastRPC(urls)
sendBundleArgs := flashbotsrpc.FlashbotsSendBundleRequest{
Txs: []string{"YOUR_RAW_TX"},
BlockNumber: fmt.Sprintf("0x%x", 13281018),
}
results := rpc.BroadcastBundle(privateKey, sendBundleArgs)
for _, result := range results {
if result.Err != nil {
log.Fatal(result.Err)
}
fmt.Printf("%+v\n", result.BundleResponse)
}More examples
You can find example code in the /examples/ directory.