64 lines
1.8 KiB
JavaScript
64 lines
1.8 KiB
JavaScript
'use strict';
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var _ = require('lodash');
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var $ = require('preconditions').singleton();
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var log = require('npmlog');
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log.debug = log.verbose;
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var Insight = require('./blockchainexplorers/insight');
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var Common = require('./common');
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var Constants = Common.Constants,
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Defaults = Common.Defaults,
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Utils = Common.Utils;
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var PROVIDERS = {
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'insight': {
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'btc': {
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'livenet': 'https://insight.bitpay.com:443',
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'testnet': 'https://test-insight.bitpay.com:443',
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},
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'bch': {
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'livenet': 'https://bch-insight.bitpay.com:443',
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'testnet': 'https://test-bch-insight.bitpay.com:443',
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},
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},
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};
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function BlockChainExplorer(opts) {
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$.checkArgument(opts);
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var provider = opts.provider || 'insight';
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var coin = opts.coin || Defaults.COIN;
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var network = opts.network || 'livenet';
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$.checkState(PROVIDERS[provider], 'Provider ' + provider + ' not supported');
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$.checkState(_.contains(_.keys(PROVIDERS[provider]), coin), 'Coin ' + coin + ' not supported by this provider');
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$.checkState(_.contains(_.keys(PROVIDERS[provider][coin]), network), 'Network ' + network + ' not supported by this provider for coin ' + coin);
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var url = opts.url || PROVIDERS[provider][coin][network];
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if (coin != 'bch' && opts.addressFormat)
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throw new Error('addressFormat only supported for bch');
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if (coin == 'bch' && !opts.addressFormat)
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opts.addressFormat = 'cashaddr';
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switch (provider) {
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case 'insight':
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return new Insight({
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coin: coin,
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network: network,
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url: url,
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apiPrefix: opts.apiPrefix,
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userAgent: opts.userAgent,
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addressFormat: opts.addressFormat,
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});
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default:
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throw new Error('Provider ' + provider + ' not supported.');
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};
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};
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module.exports = BlockChainExplorer;
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