78 lines
2.3 KiB
Go
78 lines
2.3 KiB
Go
// Copyright (c) 2014-2017 The btcsuite developers
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// Use of this source code is governed by an ISC
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// license that can be found in the LICENSE file.
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package main
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import (
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"io/ioutil"
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"log"
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"path/filepath"
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"time"
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"github.com/lbryio/lbcd/rpcclient"
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"github.com/lbryio/lbcd/wire"
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btcutil "github.com/lbryio/lbcutil"
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)
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func main() {
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// Only override the handlers for notifications you care about.
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// Also note most of these handlers will only be called if you register
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// for notifications. See the documentation of the rpcclient
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// NotificationHandlers type for more details about each handler.
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ntfnHandlers := rpcclient.NotificationHandlers{
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OnFilteredBlockConnected: func(height int32, header *wire.BlockHeader, txns []*btcutil.Tx) {
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log.Printf("Block connected: %v (%d) %v",
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header.BlockHash(), height, header.Timestamp)
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},
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OnFilteredBlockDisconnected: func(height int32, header *wire.BlockHeader) {
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log.Printf("Block disconnected: %v (%d) %v",
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header.BlockHash(), height, header.Timestamp)
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},
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}
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// Connect to local btcd RPC server using websockets.
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btcdHomeDir := btcutil.AppDataDir("lbcd", false)
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certs, err := ioutil.ReadFile(filepath.Join(btcdHomeDir, "rpc.cert"))
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if err != nil {
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log.Fatal(err)
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}
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connCfg := &rpcclient.ConnConfig{
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Host: "localhost:8334",
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Endpoint: "ws",
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User: "yourrpcuser",
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Pass: "yourrpcpass",
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Certificates: certs,
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}
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client, err := rpcclient.New(connCfg, &ntfnHandlers)
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if err != nil {
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log.Fatal(err)
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}
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// Register for block connect and disconnect notifications.
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if err := client.NotifyBlocks(); err != nil {
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log.Fatal(err)
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}
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log.Println("NotifyBlocks: Registration Complete")
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// Get the current block count.
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blockCount, err := client.GetBlockCount()
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if err != nil {
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log.Fatal(err)
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}
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log.Printf("Block count: %d", blockCount)
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// For this example gracefully shutdown the client after 10 seconds.
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// Ordinarily when to shutdown the client is highly application
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// specific.
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log.Println("Client shutdown in 10 seconds...")
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time.AfterFunc(time.Second*10, func() {
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log.Println("Client shutting down...")
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client.Shutdown()
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log.Println("Client shutdown complete.")
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})
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// Wait until the client either shuts down gracefully (or the user
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// terminates the process with Ctrl+C).
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client.WaitForShutdown()
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}
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