37 lines
788 B
JavaScript
37 lines
788 B
JavaScript
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class PeriodicRequest {
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constructor(interval, callback, err_callback) {
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this.error = false;
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this.timer = undefined;
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this.result = undefined;
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this.interval = interval;
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this.callback = callback;
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this.err_callback = err_callback;
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}
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request(url) {
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app.get(url, (msg) => {
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this.result = msg;
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this.error = false;
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this.callback(msg);
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}, (Http) => {
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if (!Http.status || Http.status >= 400) {
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this.err_callback(Http.status);
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this.error = true;
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}
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});
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}
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stopRequesting() {
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this.result = undefined;
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clearInterval(this.timer);
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}
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startRequesting(url) {
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this.stopRequesting();
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this.timer = window.setInterval(function() {
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this.request(url);
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}.bind(this), this.interval);
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}
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}
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