docs: Update Examples with Blockstore

docs/examples/connect-to-peer.js

@@ -1,12 +1,15 @@
 'use strict';
 
-/*
- * Usage:
- *  Run another Bitcoin node on local regtest network, for example
- *    $ ../../bin/bcoin --network=regtest
- *  Execute this script with the other node's address and port
- *    $ node connect-to-peer.js 127.0.0.1:48444
- */
+if (process.argv.length !== 3) {
+  console.log(`
+    Usage:
+     Run another Bitcoin node on local regtest network, for example
+       $ ../../bin/bcoin --network=regtest
+     Execute this script with the other node's address and port
+       $ node connect-to-peer.js 127.0.0.1:48444
+  `);
+  process.exit(1);
+}
 
 const bcoin = require('../..');
 const network = bcoin.Network.get('regtest');

docs/examples/connect-to-the-p2p-network.js

@@ -10,9 +10,11 @@ const logger = new Logger({
 });
 
 // Create a blockchain and store it in memory.
+const blocks = new bcoin.blockstore.LevelBlockStore({
+  memory: true
+});
 const chain = new bcoin.Chain({
-  memory: true,
-  network: 'main',
+  blocks: blocks,
   logger: logger
 });
 
@@ -31,6 +33,7 @@ const pool = new bcoin.Pool({
 
 (async function() {
   await logger.open();
+  await blocks.open();
   await chain.open();
 
   await pool.open();
@@ -64,8 +67,11 @@ const pool = new bcoin.Pool({
 
 // Start up a testnet sync in-memory
 // while we're at it (because we can).
-
+const tblocks = new bcoin.blockstore.LevelBlockStore({
+  memory: true
+});
 const tchain = new bcoin.Chain({
+  blocks: tblocks,
   memory: true,
   network: 'testnet',
   logger: logger
@@ -86,6 +92,7 @@ const tpool = new bcoin.Pool({
 });
 
 (async function() {
+  await tblocks.open();
   await tchain.open();
 
   await tpool.open();

docs/examples/create-a-blockchain-and-mempool.js

@@ -8,7 +8,8 @@ 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 bcoin.Chain({ network: 'regtest', memory: true });
+const blocks = new bcoin.blockstore.LevelBlockStore({ memory: true });
+const chain = new bcoin.Chain({ blocks });
 const mempool = new bcoin.Mempool({ chain: chain });
 const miner = new bcoin.Miner({
   chain: chain,
@@ -20,6 +21,7 @@ const miner = new bcoin.Miner({
 
 (async () => {
   // Open the chain
+  await blocks.open();
   await chain.open();
 
   // Open the miner (initialize the databases, etc).

docs/examples/get-tx-from-chain.js

@@ -6,13 +6,16 @@ const fs = require('bfile');
 // Create chain for testnet, stored in memory by default.
 // To store the chain on disk at the `prefix` location,
 // set `memory: false`.
+const blocks = new bcoin.blockstore.LevelBlockStore({
+  memory: true
+});
 const chain = new bcoin.Chain({
+  blocks,
   network: 'testnet',
   indexTX: true,
   indexAddress: true,
   db: 'leveldb',
-  prefix: '/tmp/bcoin-testnet-example',
-  memory: true
+  prefix: '/tmp/bcoin-testnet-example'
 });
 
 // Create a network pool of peers with a limit of 8 peers.
@@ -26,6 +29,7 @@ const pool = new bcoin.Pool({
   if (!chain.options.memory)
     await fs.mkdirp(chain.options.prefix);
 
+  await blocks.open();
   await chain.open();
 
   // Connect the blockchain to the network

docs/examples/spv-sync-wallet.js

@@ -18,7 +18,8 @@ const walletdb = new bcoin.wallet.WalletDB({ memory: true });
 
 // Full node will provide tx data to SPV node
 const full = {};
-full.chain = new bcoin.Chain();
+const blocks = new bcoin.blockstore.LevelBlockStore({ memory: true });
+full.chain = new bcoin.Chain({ blocks });
 full.pool = new bcoin.Pool({
   chain: full.chain,
   port: 44444,
@@ -29,6 +30,7 @@ full.pool = new bcoin.Pool({
 (async () => {
   await pool.open();
   await walletdb.open();
+  await blocks.open();
   await chain.open();
   await pool.connect();