lbcd/rpcclient/examples/lbcdblocknotify/main.go

105 lines
2.9 KiB
Go

// Copyright (c) 2014-2017 The btcsuite developers
// Use of this source code is governed by an ISC
// license that can be found in the LICENSE file.
package main
import (
"flag"
"fmt"
"io/ioutil"
"log"
"net"
"path/filepath"
"github.com/lbryio/lbcd/rpcclient"
"github.com/lbryio/lbcd/wire"
"github.com/lbryio/lbcutil"
)
func send(stratum, stratumPass, coinid, blockHash string) error {
addr, err := net.ResolveTCPAddr("tcp", stratum)
if err != nil {
return fmt.Errorf("can't resolve addr: %w", err)
}
conn, err := net.DialTCP("tcp", nil, addr)
if err != nil {
return fmt.Errorf("can't dial tcp: %w", err)
}
defer conn.Close()
msg := fmt.Sprintf(`{"id":1,"method":"mining.update_block","params":[%q,%q,%q]}`,
stratumPass, coinid, blockHash)
_, err = conn.Write([]byte(msg))
if err != nil {
return fmt.Errorf("can't write message: %w", err)
}
return nil
}
func main() {
var (
coinid = flag.String("coinid", "1425", "Coin ID")
stratum = flag.String("stratum", "lbrypool.net:3334", "Stratum server")
stratumPass = flag.String("stratumpass", "password", "Stratum server password")
rpcserver = flag.String("rpcserver", "localhost:9245", "LBCD RPC server")
rpcuser = flag.String("rpcuser", "rpcuser", "LBCD RPC username")
rpcpass = flag.String("rpcpass", "rpcpass", "LBCD RPC password")
notls = flag.Bool("notls", false, "Connect to LBCD with TLS disabled")
)
flag.Parse()
ntfnHandlers := rpcclient.NotificationHandlers{
OnFilteredBlockConnected: func(height int32, header *wire.BlockHeader, txns []*lbcutil.Tx) {
blockHash := header.BlockHash().String()
log.Printf("Block connected: %v (%d) %v", blockHash, height, header.Timestamp)
if err := send(*stratum, *stratumPass, *coinid, blockHash); err != nil {
log.Printf("ERROR: failed to notify stratum: %s", err)
}
},
}
// Connect to local lbcd RPC server using websockets.
lbcdHomeDir := lbcutil.AppDataDir("lbcd", false)
certs, err := ioutil.ReadFile(filepath.Join(lbcdHomeDir, "rpc.cert"))
if err != nil {
log.Fatalf("can't read lbcd certificate: %s", err)
}
connCfg := &rpcclient.ConnConfig{
Host: *rpcserver,
Endpoint: "ws",
User: *rpcuser,
Pass: *rpcpass,
Certificates: certs,
DisableTLS: *notls,
}
client, err := rpcclient.New(connCfg, &ntfnHandlers)
if err != nil {
log.Fatalf("can't create rpc client: %s", err)
}
// Register for block connect and disconnect notifications.
if err = client.NotifyBlocks(); err != nil {
log.Fatalf("can't register block notification: %s", err)
}
log.Printf("NotifyBlocks: Registration Complete")
// Get the current block count.
blockCount, err := client.GetBlockCount()
if err != nil {
log.Fatalf("can't get block count: %s", err)
}
log.Printf("Block count: %d", blockCount)
// Wait until the client either shuts down gracefully (or the user
// terminates the process with Ctrl+C).
client.WaitForShutdown()
}