mirror of https://github.com/BTCPrivate/copay.git
Address @matiu's comments
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@ -56,6 +56,11 @@ var defaultConfig = {
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storageSalt: 'mjuBtGybi/4=',
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},
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rate: {
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url: 'https://bitpay.com/api/rates',
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updateFrequencySeconds: 60 * 60
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},
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disableVideo: true,
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verbose: 1,
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};
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@ -2,19 +2,25 @@
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var RateService = function(request) {
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this.isAvailable = false;
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this.UNAVAILABLE_ERROR = 'Service is not available - check for service.isAvailable or use service.whenAvailable';
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this.SAT_TO_BTC = 1 / 1e8;
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var MINS_IN_HOUR = 60;
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var MILLIS_IN_SECOND = 1000;
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var rateServiceConfig = config.rate;
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var updateFrequencySeconds = rateServiceConfig.updateFrequencySeconds || 60 * MINS_IN_HOUR;
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var rateServiceUrl = rateServiceConfig.url || 'https://bitpay.com/api/rates';
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this.queued = [];
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this.alternatives = [];
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var that = this;
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var backoff = 5;
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var backoffSeconds = 5;
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var retrieve = function() {
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request.get({
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url:'https://bitpay.com/api/rates',
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url: rateServiceUrl,
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json: true
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}, function(err, response, listOfCurrencies) {
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if (err) {
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backoff *= 1.5;
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setTimeout(retrieve, backoff * 1000);
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backoffSeconds *= 1.5;
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setTimeout(retrieve, backoffSeconds * MILLIS_IN_SECOND);
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return;
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}
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var rates = {};
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@ -31,6 +37,7 @@ var RateService = function(request) {
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that.queued.forEach(function(callback) {
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setTimeout(callback, 1);
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});
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setTimeout(retrieve, updateFrequencySeconds * MILLIS_IN_SECOND);
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});
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};
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retrieve();
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@ -46,21 +53,21 @@ RateService.prototype.whenAvailable = function(callback) {
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RateService.prototype.toFiat = function(satoshis, code) {
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if (!this.isAvailable) {
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return 0;
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throw new Error(this.UNAVAILABLE_ERROR);
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}
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return satoshis * this.SAT_TO_BTC * this.rates[code];
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};
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RateService.prototype.fromFiat = function(amount, code) {
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if (!this.isAvailable) {
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return 0;
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throw new Error(this.UNAVAILABLE_ERROR);
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}
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return amount / this.rates[code] / this.SAT_TO_BTC;
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};
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RateService.prototype.listAlternatives = function() {
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if (!this.isAvailable) {
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return [];
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throw new Error(this.UNAVAILABLE_ERROR);
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}
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var alts = [];
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