From 89667c3e3eb031225c1e6202f9bf90cc72d19bb3 Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Fri, 24 Mar 2017 13:52:58 -0700
Subject: [PATCH] examples: add examples.

---
 examples/chain.js  | 19 ++++++++++++++++++
 examples/miner.js  | 38 +++++++++++++++++++++++++++++++++++
 examples/peer.js   | 45 ++++++++++++++++++++++++++++++++++++++++++
 examples/wallet.js | 49 ++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 151 insertions(+)
 create mode 100644 examples/chain.js
 create mode 100644 examples/miner.js
 create mode 100644 examples/peer.js
 create mode 100644 examples/wallet.js

diff --git a/examples/chain.js b/examples/chain.js
new file mode 100644
index 00000000..a194b001
--- /dev/null
+++ b/examples/chain.js
@@ -0,0 +1,19 @@
+'use strict';
+
+var Chain = require('bcoin/lib/blockchain/chain');
+
+var chain = new Chain({
+  network: 'testnet'
+});
+
+async function main() {
+  var entry;
+
+  await chain.open();
+
+  entry = await chain.getEntry(0);
+
+  console.log(entry);
+}
+
+main();
diff --git a/examples/miner.js b/examples/miner.js
new file mode 100644
index 00000000..92725335
--- /dev/null
+++ b/examples/miner.js
@@ -0,0 +1,38 @@
+'use strict';
+
+var Chain = require('bcoin/lib/blockchain/chain');
+var Miner = require('bcoin/lib/mining/miner');
+
+var chain = new Chain({
+  network: 'regtest'
+});
+
+var miner = new Miner({
+  chain: chain,
+  addresses: ['mfWxJ45yp2SFn7UciZyNpvDKrzbhyfKrY8'],
+  coinbaseFlags: 'my-miner'
+});
+
+async function main() {
+  var tmpl, job, block;
+
+  await miner.open();
+
+  tmpl = await miner.createBlock();
+
+  console.log('Block template:');
+  console.log(tmpl);
+
+  job = await miner.cpu.createJob();
+  block = await job.mineAsync();
+
+  console.log('Mined block:');
+  console.log(block);
+
+  await chain.add(block);
+
+  console.log('New tip:');
+  console.log(chain.tip);
+}
+
+main();
diff --git a/examples/peer.js b/examples/peer.js
new file mode 100644
index 00000000..110b4200
--- /dev/null
+++ b/examples/peer.js
@@ -0,0 +1,45 @@
+'use strict';
+
+// Usage: $ node ./examples/peer.js [ip]:[port]
+
+var Peer = require('bcoin/lib/net/peer');
+var NetAddress = require('bcoin/lib/primitives/netaddress');
+var Network = require('bcoin/lib/protocol/network');
+var network = Network.get('testnet');
+var peer, addr;
+
+peer = Peer.fromOptions({
+  network: 'testnet',
+  agent: 'my-subversion',
+  hasWitness: function() {
+    return false;
+  }
+});
+
+addr = NetAddress.fromHostname(process.argv[2], 'testnet');
+
+peer.connect(addr);
+peer.tryOpen();
+
+peer.on('error', function(err) {
+  console.error(err);
+});
+
+peer.on('packet', function(msg) {
+  console.log(msg);
+
+  if (msg.cmd === 'block') {
+    console.log('Block!');
+    console.log(msg.block.toBlock());
+    return;
+  }
+
+  if (msg.cmd === 'inv') {
+    peer.getData(msg.items);
+    return;
+  }
+});
+
+peer.on('open', function() {
+  peer.getBlock([network.genesis.hash]);
+});
diff --git a/examples/wallet.js b/examples/wallet.js
new file mode 100644
index 00000000..dbec0667
--- /dev/null
+++ b/examples/wallet.js
@@ -0,0 +1,49 @@
+'use strict';
+
+var crypto = require('bcoin/lib/crypto/crypto');
+var WalletDB = require('bcoin/lib/wallet/walletdb');
+var MTX = require('bcoin/lib/primitives/mtx');
+var Outpoint = require('bcoin/lib/primitives/outpoint');
+var walletdb;
+
+function dummy() {
+  var hash = crypto.randomBytes(32).toString('hex');
+  return new Outpoint(hash, 0);
+}
+
+walletdb = new WalletDB({
+  network: 'testnet',
+  db: 'memory'
+});
+
+async function main() {
+  var wallet, acct, mtx, tx, wtx;
+
+  await walletdb.open();
+
+  wallet = await walletdb.create();
+
+  console.log('Created wallet');
+  console.log(wallet);
+
+  acct = await wallet.createAccount({
+    name: 'foo'
+  });
+
+  console.log('Created account');
+  console.log(acct);
+
+  mtx = new MTX();
+  mtx.addOutpoint(dummy());
+  mtx.addOutput(acct.getReceive(), 50460);
+  tx = mtx.toTX();
+
+  await walletdb.addTX(tx);
+
+  wtx = await wallet.getTX(tx.hash('hex'));
+
+  console.log('Added transaction');
+  console.log(wtx);
+}
+
+main();