86 lines
1.8 KiB
Markdown
86 lines
1.8 KiB
Markdown
``` js
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var bcoin = require('bcoin').set('main');
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// Create a blockchain and store it in leveldb.
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// `db` also accepts `rocksdb` and `lmdb`.
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var prefix = process.env.HOME + '/my-bcoin-environment';
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var chain = new bcoin.chain({ db: 'leveldb', location: prefix + '/chain' });
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var mempool = new bcoin.mempool({ chain: chain });
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// Create a network pool of peers with a limit of 8 peers.
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var pool = new bcoin.pool({ chain: chain, mempool: mempool, maxPeers: 8 });
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// Open the pool (implicitly opens mempool and chain).
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(async function() {
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await pool.open();
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// Connect, start retrieving and relaying txs
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await pool.connect();
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// Start the blockchain sync.
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pool.startSync();
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// Watch the action
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chain.on('block', function(block) {
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console.log('Connected block to blockchain:');
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console.log(block);
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});
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mempool.on('tx', function(tx) {
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console.log('Added tx to mempool:');
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console.log(tx);
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});
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pool.on('tx', function(tx) {
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console.log('Saw transaction:');
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console.log(tx.rhash);
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});
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})();
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// Start up a segnet4 sync in-memory
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// while we're at it (because we can).
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var tchain = new bcoin.chain({
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network: 'segnet4',
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db: 'memory'
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});
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var tmempool = new bcoin.mempool({
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network: 'segnet4',
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chain: tchain
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});
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var tpool = new bcoin.pool({
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network: 'segnet4',
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chain: tchain,
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mempool: tmempool,
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size: 8
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});
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(async function() {
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await pool.open();
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// Connect, start retrieving and relaying txs
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await tpool.connect();
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// Start the blockchain sync.
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tpool.startSync();
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tchain.on('block', function(block) {
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console.log('Added segnet4 block:');
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console.log(block);
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});
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tmempool.on('tx', function(tx) {
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console.log('Added segnet4 tx to mempool:');
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console.log(tx);
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});
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tpool.on('tx', function(tx) {
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console.log('Saw segnet4 transaction:');
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console.log(tx);
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});
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})();
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``` |