From d7c1210515bc52f0d4d774a1a76da19fea805a54 Mon Sep 17 00:00:00 2001
From: Node <nodar.chkuaselidze@gmail.com>
Date: Wed, 9 Aug 2017 14:15:24 +0400
Subject: [PATCH] Update examples

---
 ...ample-Creating-a-Blockchain-and-Mempool.md | 35 --------
 docs/Example-Fullnode-Object.md               | 72 -----------------
 docs/Example-SPV-Sync.md                      | 44 -----------
 .../connect-to-the-p2p-network.js}            | 59 ++++++++------
 .../create-a-blockchain-and-mempool.js        | 39 +++++++++
 docs/Examples/fullnode-and-wallet.js          | 79 +++++++++++++++++++
 docs/Examples/spv-sync-wallet.js              | 51 ++++++++++++
 7 files changed, 203 insertions(+), 176 deletions(-)
 delete mode 100644 docs/Example-Creating-a-Blockchain-and-Mempool.md
 delete mode 100644 docs/Example-Fullnode-Object.md
 delete mode 100644 docs/Example-SPV-Sync.md
 rename docs/{Example-Connecting-to-the-P2P-Network.md => Examples/connect-to-the-p2p-network.js} (51%)
 create mode 100644 docs/Examples/create-a-blockchain-and-mempool.js
 create mode 100644 docs/Examples/fullnode-and-wallet.js
 create mode 100644 docs/Examples/spv-sync-wallet.js

diff --git a/docs/Example-Creating-a-Blockchain-and-Mempool.md b/docs/Example-Creating-a-Blockchain-and-Mempool.md
deleted file mode 100644
index 0941d931..00000000
--- a/docs/Example-Creating-a-Blockchain-and-Mempool.md
+++ /dev/null
@@ -1,35 +0,0 @@
-``` js
-var bcoin = require('bcoin');
-
-bcoin.set({
-  // Default network (so we can avoid passing
-  // the `network` option into every object below.
-  network: 'regtest',
-  // Enable the global worker pool
-  // for mining and transaction verification.
-  useWorkers: true
-});
-
-// Start up a blockchain, mempool, and miner using in-memory
-// databases (stored in a red-black tree instead of on-disk).
-var chain = new bcoin.chain({ db: 'memory' });
-var mempool = new bcoin.mempool({ chain: chain });
-var miner = new bcoin.miner({ chain: chain, mempool: mempool });
-
-// Open the miner (initialize the databases, etc).
-// Miner will implicitly call `open` on chain and mempool.
-miner.open().then(function() {
-  // Create a Cpu miner job
-  return miner.createJob();
-}).then(function(job) {
-  // Mine the block on the worker pool (use mine() for the master process)
-  return job.mineAsync();
-}).then(function(block) {
-  // Add the block to the chain
-  console.log('Adding %s to the blockchain.', block.rhash);
-  console.log(block);
-  return chain.add(block);
-}).then(function() {
-  console.log('Added block!');
-});
-```
\ No newline at end of file
diff --git a/docs/Example-Fullnode-Object.md b/docs/Example-Fullnode-Object.md
deleted file mode 100644
index 92ddf471..00000000
--- a/docs/Example-Fullnode-Object.md
+++ /dev/null
@@ -1,72 +0,0 @@
-``` js
-var bcoin = require('bcoin').set('main');
-
-var node = bcoin.fullnode({
-  checkpoints: true,
-  // Primary wallet passphrase
-  passsphrase: 'node',
-  logLevel: 'info'
-});
-
-// We get a lot of errors sometimes,
-// usually from peers hanging up on us.
-// Just ignore them for now.
-node.on('error', function(err) {
-  ;
-});
-
-// Start the node
-node.open().then(function() {
-  // Create a new wallet (or get an existing one with the same ID)
-  var options = {
-    id: 'mywallet',
-    passphrase: 'foo',
-    witness: false,
-    type: 'pubkeyhash'
-  };
-
-  return node.walletdb.create(options);
-}).then(function(wallet) {
-  console.log('Created wallet with address: %s', wallet.getAddress('base58'));
-
-  node.connect().then(function() {
-    // Start syncing the blockchain
-    node.startSync();
-  });
-
-  // Wait for balance and send it to a new address.
-  wallet.once('balance', function(balance) {
-    // Create a transaction, fill
-    // it with coins, and sign it.
-    var options = {
-      subtractFee: true,
-      outputs: [{
-        address: newReceiving,
-        value: balance.total
-      }]
-    };
-    wallet.createTX(options).then(function(tx) {
-      // Need to pass our passphrase back in to sign!
-      return wallet.sign(tx, 'foo');
-    }).then(function(tx) {
-      console.log('sending tx:');
-      console.log(tx);
-      return node.sendTX(tx);
-    }).then(function() {
-      console.log('tx sent!');
-    });
-  });
-});
-
-node.chain.on('block', function(block) {
-  ;
-});
-
-node.mempool.on('tx', function(tx) {
-  ;
-});
-
-node.chain.on('full', function() {
-  node.mempool.getHistory().then(console.log);
-});
-```
\ No newline at end of file
diff --git a/docs/Example-SPV-Sync.md b/docs/Example-SPV-Sync.md
deleted file mode 100644
index 1a08fc25..00000000
--- a/docs/Example-SPV-Sync.md
+++ /dev/null
@@ -1,44 +0,0 @@
-``` js
-var bcoin = require('bcoin').set('testnet');
-
-// SPV chains only store the chain headers.
-var chain = new bcoin.chain({
-  db: 'leveldb',
-  location: process.env.HOME + '/spvchain',
-  spv: true
-});
-
-var pool = new bcoin.pool({
-  chain: chain,
-  spv: true,
-  maxPeers: 8
-});
-
-var walletdb = new bcoin.walletdb({ db: 'memory' });
-
-pool.open().then(function() {
-  return walletdb.open();
-}).then(function() {
-  return walletdb.create();
-}).then(function(wallet) {
-  console.log('Created wallet with address %s', wallet.getAddress('base58'));
-
-  // Add our address to the spv filter.
-  pool.watchAddress(wallet.getAddress());
-
-  // Connect, start retrieving and relaying txs
-  pool.connect().then(function() {
-    // Start the blockchain sync.
-    pool.startSync();
-
-    pool.on('tx', function(tx) {
-      walletdb.addTX(tx);
-    });
-
-    wallet.on('balance', function(balance) {
-      console.log('Balance updated.');
-      console.log(bcoin.amount.btc(balance.unconfirmed));
-    });
-  });
-});
-```
\ No newline at end of file
diff --git a/docs/Example-Connecting-to-the-P2P-Network.md b/docs/Examples/connect-to-the-p2p-network.js
similarity index 51%
rename from docs/Example-Connecting-to-the-P2P-Network.md
rename to docs/Examples/connect-to-the-p2p-network.js
index c25453d9..e9b852ac 100644
--- a/docs/Example-Connecting-to-the-P2P-Network.md
+++ b/docs/Examples/connect-to-the-p2p-network.js
@@ -1,15 +1,26 @@
-``` js
-var bcoin = require('bcoin').set('main');
+'use strict';
+const bcoin = require('../..').set('main');
+const Chain = bcoin.chain;
+const Mempool = bcoin.mempool;
+const Pool = bcoin.pool;
 
 // Create a blockchain and store it in leveldb.
 // `db` also accepts `rocksdb` and `lmdb`.
-var prefix = process.env.HOME + '/my-bcoin-environment';
-var chain = new bcoin.chain({ db: 'leveldb', location: prefix + '/chain' });
+const prefix = process.env.HOME + '/my-bcoin-environment';
+const chain = new Chain({
+  db: 'leveldb',
+  location: prefix + '/chain',
+  network: 'main'
+});
 
-var mempool = new bcoin.mempool({ chain: chain });
+const mempool = new Mempool({ chain: chain });
 
 // Create a network pool of peers with a limit of 8 peers.
-var pool = new bcoin.pool({ chain: chain, mempool: mempool, maxPeers: 8 });
+const pool = new Pool({
+  chain: chain,
+  mempool: mempool,
+  maxPeers: 8
+});
 
 // Open the pool (implicitly opens mempool and chain).
 (async function() {
@@ -22,44 +33,44 @@ var pool = new bcoin.pool({ chain: chain, mempool: mempool, maxPeers: 8 });
   pool.startSync();
 
   // Watch the action
-  chain.on('block', function(block) {
+  chain.on('block', (block) => {
     console.log('Connected block to blockchain:');
     console.log(block);
   });
 
-  mempool.on('tx', function(tx) {
+  mempool.on('tx', (tx) => {
     console.log('Added tx to mempool:');
     console.log(tx);
   });
 
-  pool.on('tx', function(tx) {
+  pool.on('tx', (tx) => {
     console.log('Saw transaction:');
     console.log(tx.rhash);
   });
 })();
 
-// Start up a segnet4 sync in-memory
+// Start up a testnet sync in-memory
 // while we're at it (because we can).
 
-var tchain = new bcoin.chain({
-  network: 'segnet4',
+const tchain = new Chain({
+  network: 'testnet',
   db: 'memory'
 });
 
-var tmempool = new bcoin.mempool({
-  network: 'segnet4',
+const tmempool = new Mempool({
+  network: 'testnet',
   chain: tchain
 });
 
-var tpool = new bcoin.pool({
-  network: 'segnet4',
+const tpool = new Pool({
+  network: 'testnet',
   chain: tchain,
   mempool: tmempool,
   size: 8
 });
 
 (async function() {
-  await pool.open();
+  await tpool.open();
 
   // Connect, start retrieving and relaying txs
   await tpool.connect();
@@ -67,20 +78,18 @@ var tpool = new bcoin.pool({
   // Start the blockchain sync.
   tpool.startSync();
 
-  tchain.on('block', function(block) {
-    console.log('Added segnet4 block:');
+  tchain.on('block', (block) => {
+    console.log('Added testnet block:');
     console.log(block);
   });
 
-  tmempool.on('tx', function(tx) {
-    console.log('Added segnet4 tx to mempool:');
+  tmempool.on('tx', (tx) => {
+    console.log('Added testnet tx to mempool:');
     console.log(tx);
   });
 
-  tpool.on('tx', function(tx) {
-    console.log('Saw segnet4 transaction:');
+  tpool.on('tx', (tx) => {
+    console.log('Saw testnet transaction:');
     console.log(tx);
   });
 })();
-
-```
\ No newline at end of file
diff --git a/docs/Examples/create-a-blockchain-and-mempool.js b/docs/Examples/create-a-blockchain-and-mempool.js
new file mode 100644
index 00000000..13d3f88c
--- /dev/null
+++ b/docs/Examples/create-a-blockchain-and-mempool.js
@@ -0,0 +1,39 @@
+'use strict';
+const bcoin = require('../..');
+const Chain = bcoin.chain;
+const Mempool = bcoin.mempool;
+const Miner = bcoin.miner;
+
+// Default network (so we can avoid passing
+// the `network` option into every object below.)
+bcoin.set('regtest');
+
+// Start up a blockchain, mempool, and miner using in-memory
+// databases (stored in a red-black tree instead of on-disk).
+const chain = new Chain({ db: 'memory' });
+const mempool = new Mempool({ chain: chain });
+const miner = new Miner({
+  chain: chain,
+  mempool: mempool,
+
+  // Make sure miner won't block the main thread.
+  useWorkers: true
+});
+
+(async () => {
+  // Open the miner (initialize the databases, etc).
+  // Miner will implicitly call `open` on chain and mempool.
+  await miner.open();
+
+  // Create a Cpu miner job
+  const job = await miner.createJob();
+
+  // run miner
+  const block = await job.mineAsync();
+
+  // Add the block to the chain
+  console.log('Adding %s to the blockchain.', block.rhash);
+  console.log(block);
+  await chain.add(block);
+  console.log('Added block!');
+})();
diff --git a/docs/Examples/fullnode-and-wallet.js b/docs/Examples/fullnode-and-wallet.js
new file mode 100644
index 00000000..15283214
--- /dev/null
+++ b/docs/Examples/fullnode-and-wallet.js
@@ -0,0 +1,79 @@
+'use strict';
+const bcoin = require('../..').set('main');
+const WalletDB = bcoin.walletdb;
+
+const node = bcoin.fullnode({
+  checkpoints: true,
+  // Primary wallet passphrase
+  passsphrase: 'node',
+  logLevel: 'info'
+});
+
+// We get a lot of errors sometimes,
+// usually from peers hanging up on us.
+// Just ignore them for now.
+node.on('error', (err) => {
+  ;
+});
+
+// New Address we'll be sending to.
+const newReceiving = 'AddressHere';
+
+// Start the node
+(async () => {
+  await node.open();
+
+  const options = {
+    id: 'mywallet',
+    passphrase: 'foo',
+    witness: false,
+    type: 'pubkeyhash'
+  };
+
+  console.log(node);
+  const walletdb = new WalletDB();
+
+  await walletdb.open();
+  const wallet = await walletdb.create(options);
+
+  console.log('Created wallet with address: %s', wallet.getAddress('base58'));
+
+  await node.connect();
+
+  // Start syncing the blockchain
+  node.startSync();
+
+  // Wait for balance and send it to a new address.
+  wallet.once('balance', async (balance) => {
+    // Create a transaction, fill
+    // it with coins, and sign it.
+    const options = {
+      subtractFee: true,
+      outputs: [{
+        address: newReceiving,
+        value: balance.total
+      }]
+    };
+
+    const tx = await wallet.createTX(options);
+    const stx = await wallet.sign(tx, 'foo');
+
+    console.log('sending tx:');
+    console.log(stx);
+
+    await node.sendTX(stx);
+    console.log('tx sent!');
+  });
+
+  node.chain.on('block', (block) => {
+    ;
+  });
+
+  node.mempool.on('tx', (tx) => {
+    ;
+  });
+
+  node.chain.on('full', () => {
+    node.mempool.getHistory().then(console.log);
+  });
+})();
diff --git a/docs/Examples/spv-sync-wallet.js b/docs/Examples/spv-sync-wallet.js
new file mode 100644
index 00000000..bd622aa0
--- /dev/null
+++ b/docs/Examples/spv-sync-wallet.js
@@ -0,0 +1,51 @@
+'use strict';
+
+const bcoin = require('../..').set('testnet');
+const Chain = bcoin.chain;
+const Pool = bcoin.pool;
+const WalletDB = bcoin.walletdb;
+
+// SPV chains only store the chain headers.
+const chain = Chain({
+  db: 'leveldb',
+  location: process.env.HOME + '/spvchain',
+  spv: true
+});
+
+const pool = new Pool({
+  chain: chain,
+  spv: true,
+  maxPeers: 8
+});
+
+const walletdb = new WalletDB({ db: 'memory' });
+
+(async () => {
+  await pool.open();
+  await walletdb.open();
+
+  const wallet = await walletdb.create();
+
+  console.log('Created wallet with address %s', wallet.getAddress('base58'));
+
+  // Add our address to the spv filter.
+  pool.watchAddress(wallet.getAddress());
+
+  // Connect, start retrieving and relaying txs
+  await pool.connect();
+
+  // Start the blockchain sync.
+  pool.startSync();
+
+  pool.on('tx', async (tx) => {
+    console.log('received TX');
+
+    await walletdb.addTX(tx);
+    console.log('Transaction added to walletDB');
+  });
+
+  wallet.on('balance', (balance) => {
+    console.log('Balance updated.');
+    console.log(bcoin.amount.btc(balance.unconfirmed));
+  });
+})();