Esteban Ordano
10 years ago
7 changed files with 185 additions and 69 deletions
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'use strict'; |
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var Networks = require('../networks'); |
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var JSUtil = require('../util/js'); |
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var $ = require('../util/preconditions'); |
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var _ = require('lodash'); |
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var Address = require('../address'); |
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var Transaction = require('../transaction'); |
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var UTXO = require('../utxo'); |
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var request = require('request'); |
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// var insight = new Insight(Networks.livenet);
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function Insight(url, network) { |
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if (!url && !network) { |
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return new Insight(Networks.defaultNetwork); |
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} |
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if (Networks.get(url)) { |
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network = Networks.get(url); |
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if (network === Networks.livenet) { |
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url = 'https://insight.bitpay.com'; |
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} else { |
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url = 'https://test-insight.bitpay.com'; |
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} |
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} |
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JSUtil.defineImmutable(this, { |
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url: url, |
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network: Networks.get(network) || Networks.defaultNetwork |
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}); |
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return this; |
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} |
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Insight.prototype.getUnspentUtxos = function(addresses, callback) { |
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$.checkArgument(_.isFunction(callback)); |
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if (!_.isArray(addresses)) { |
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addresses = [addresses]; |
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} |
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addresses = _.map(addresses, function(address) { return new Address(address); }); |
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this.requestPost('/api/addrs/utxo', { |
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addrs: _.map(addresses, function(address) { return address.toString(); }).join(',') |
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}, function(err, res, unspent) { |
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if (err || res.statusCode !== 200) { |
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return callback(err || res); |
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} |
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unspent = _.map(unspent, UTXO); |
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return callback(null, unspent); |
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}); |
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}; |
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Insight.prototype.broadcast = function(transaction, callback) { |
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$.checkArgument(JSUtil.isHexa(transaction) || transaction instanceof Transaction); |
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$.checkArgument(_.isFunction(callback)); |
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if (transaction instanceof Transaction) { |
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transaction = transaction.serialize(); |
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} |
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this.requestPost('/api/tx/send', { |
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rawtx: transaction |
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}, function(err, res, body) { |
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if (err || res.statusCode !== 200) { |
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return callback(err || body); |
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} |
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return callback(null, body ? body.txid : null); |
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}); |
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}; |
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Insight.prototype.requestPost = function(path, data, callback) { |
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$.checkArgument(_.isString(path)); |
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$.checkArgument(_.isFunction(callback)); |
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request({ |
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method: 'POST', |
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url: this.url + path, |
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json: data |
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}, callback); |
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}; |
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module.exports = Insight; |
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@ -0,0 +1,72 @@ |
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'use strict'; |
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var _ = require('lodash'); |
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var $ = require('./util/preconditions'); |
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var JSUtil = require('./util/js'); |
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var Script = require('./script'); |
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var Address = require('./address'); |
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var Unit = require('./unit'); |
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function UTXO(data) { |
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/* jshint maxcomplexity: 20 */ |
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/* jshint maxstatements: 20 */ |
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if (!(this instanceof UTXO)) { |
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return new UTXO(data); |
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} |
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$.checkArgument(_.isObject(data), 'Must provide an object from where to extract data'); |
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var address = data.address ? new Address(data.address) : undefined; |
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var txId = data.txid ? data.txid : data.txId; |
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if (!txId || !JSUtil.isHexaString(txId) || txId.length > 64) { |
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// TODO: Use the errors library
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throw new Error('Invalid TXID in object', data); |
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} |
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var outputIndex = _.isUndefined(data.vout) ? data.outputIndex : data.vout; |
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if (!_.isNumber(outputIndex)) { |
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throw new Error('Invalid outputIndex, received ' + outputIndex); |
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} |
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$.checkArgument(data.scriptPubKey || data.script, 'Must provide the scriptPubKey for that output!'); |
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var script = new Script(data.scriptPubKey || data.script); |
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$.checkArgument(data.amount || data.satoshis, 'Must provide the scriptPubKey for that output!'); |
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var amount = data.amount ? new Unit.fromBTC(data.amount).toSatoshis() : data.satoshis; |
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$.checkArgument(_.isNumber(amount), 'Amount must be a number'); |
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JSUtil.defineImmutable(this, { |
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address: address, |
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txId: txId, |
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outputIndex: outputIndex, |
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script: script, |
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satoshis: amount |
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}); |
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} |
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UTXO.prototype.inspect = function() { |
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return '<UTXO: ' + this.txId + ':' + this.outputIndex + |
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', satoshis: ' + this.satoshis + ', address: ' + this.address + '>'; |
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}; |
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UTXO.prototype.toString = function() { |
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return this.txId + ':' + this.outputIndex; |
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}; |
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UTXO.fromJSON = UTXO.fromObject = function(data) { |
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if (_.isString(data)) { |
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data = JSON.parse(data); |
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} |
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return new UTXO(data); |
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}; |
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UTXO.prototype.toJSON = function() { |
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return JSON.stringify(this.toObject()); |
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}; |
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UTXO.prototype.toObject = function() { |
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return { |
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address: this.address.toObject(), |
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txid: this.txId, |
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vout: this.outputIndex, |
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scriptPubKey: this.script.toObject(), |
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amount: Unit.fromSatoshis(this.satoshis).toBTC() |
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}; |
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}; |
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module.exports = UTXO; |
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