From 43ca7c0f3c0e376642bc93b325db9c1450f0d7c4 Mon Sep 17 00:00:00 2001
From: Dave Collins <davec@conformal.com>
Date: Thu, 1 May 2014 23:16:31 -0500
Subject: [PATCH] Add a couple of examples.

---
 examples/bitcoincorehttp/main.go | 35 +++++++++++++++++
 examples/btcdwebsockets/main.go  | 66 ++++++++++++++++++++++++++++++++
 2 files changed, 101 insertions(+)
 create mode 100644 examples/bitcoincorehttp/main.go
 create mode 100644 examples/btcdwebsockets/main.go

diff --git a/examples/bitcoincorehttp/main.go b/examples/bitcoincorehttp/main.go
new file mode 100644
index 00000000..605bf844
--- /dev/null
+++ b/examples/bitcoincorehttp/main.go
@@ -0,0 +1,35 @@
+// Copyright (c) 2014 Conformal Systems LLC.
+// Use of this source code is governed by an ISC
+// license that can be found in the LICENSE file.
+
+package main
+
+import (
+	"github.com/conformal/btcrpcclient"
+	"log"
+)
+
+func main() {
+	// Connect to local bitcoin core RPC server using HTTP POST mode.
+	connCfg := &btcrpcclient.ConnConfig{
+		Host:         "localhost:18332",
+		User:         "yourrpcuser",
+		Pass:         "yourrpcpass",
+		HttpPostMode: true, // Bitcoin core only supports HTTP POST mode
+		DisableTLS:   true, // Bitcoin core does not provide TLS by default
+	}
+	// Notice the notification parameter is nil since notifications are
+	// not supported in HTTP POST mode.
+	client, err := btcrpcclient.New(connCfg, nil)
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer client.Shutdown()
+
+	// Get the current block count.
+	blockCount, err := client.GetBlockCount()
+	if err != nil {
+		log.Fatal(err)
+	}
+	log.Printf("Block count: %d", blockCount)
+}
diff --git a/examples/btcdwebsockets/main.go b/examples/btcdwebsockets/main.go
new file mode 100644
index 00000000..69b1092d
--- /dev/null
+++ b/examples/btcdwebsockets/main.go
@@ -0,0 +1,66 @@
+// Copyright (c) 2014 Conformal Systems LLC.
+// Use of this source code is governed by an ISC
+// license that can be found in the LICENSE file.
+
+package main
+
+import (
+	"github.com/conformal/btcutil"
+	"github.com/conformal/btcwire"
+	"github.com/conformal/btcrpcclient"
+	"io/ioutil"
+	"log"
+	"path/filepath"
+	"time"
+)
+
+func main() {
+	// Only override the handlers for notifications you care about.
+	ntfnHandlers := btcrpcclient.NotificationHandlers{
+		OnBlockConnected: func(hash *btcwire.ShaHash, height int32) {
+			log.Printf("Block connected: %v (%d)", hash, height)
+		},
+		OnBlockDisconnected: func(hash *btcwire.ShaHash, height int32) {
+			log.Printf("Block disconnected: %v", hash, height)
+		},
+	}
+
+	// Connect to local btcd RPC server using websockets.
+	btcdHomeDir := btcutil.AppDataDir("btcd", false)
+	certs, err := ioutil.ReadFile(filepath.Join(btcdHomeDir, "rpc.cert"))
+	if err != nil {
+		log.Fatal(err)
+	}
+	connCfg := &btcrpcclient.ConnConfig{
+		Host:         "localhost:8334",
+		Endpoint:     "ws",
+		User:         "yourrpcuser",
+		Pass:         "yourrpcpass",
+		Certificates: certs,
+	}
+	client, err := btcrpcclient.New(connCfg, &ntfnHandlers)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	// Get the current block count.
+	blockCount, err := client.GetBlockCount()
+	if err != nil {
+		log.Fatal(err)
+	}
+	log.Printf("Block count: %d", blockCount)
+
+	// For this example gracefully shutdown the client after 10 seconds.
+	// Ordinarily when to shutdown the client is highly application
+	// specific.
+	log.Println("Client shutdown in 10 seconds...")
+	time.AfterFunc(time.Second*10, func() {
+		log.Println("Client shutting down...")
+		client.Shutdown()
+		log.Println("Client shutting complete.")
+	})
+
+	// Wait until the client either shuts down gracefully (or the user
+	// terminates the process with Ctrl+C).
+	client.WaitForShutdown()
+}