56 lines
1.3 KiB
JavaScript
56 lines
1.3 KiB
JavaScript
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import Ember from 'ember';
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import queryString from 'npm:query-string';
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import { task } from 'ember-concurrency';
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import TextDecoder from 'nomad-ui/utils/classes/text-decoder';
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const { Object: EmberObject, computed, assign } = Ember;
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export default EmberObject.extend({
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url: '',
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params: computed(() => ({})),
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logFetch() {
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Ember.assert(
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'Loggers need a logFetch method, which should have an interface like window.fetch'
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);
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},
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reader: null,
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start() {
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return this.get('poll').perform();
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},
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stop() {
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const reader = this.get('reader');
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if (reader) {
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reader.cancel();
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}
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return this.get('poll').cancelAll();
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},
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poll: task(function*() {
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const queryParams = queryString.stringify(
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assign({}, this.get('params'), {
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plain: true,
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follow: true,
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origin: 'end',
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offset: 50000,
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})
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);
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const url = `${this.get('url')}?${queryParams}`;
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const logFetch = this.get('logFetch');
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let streamClosed = false;
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const reader = yield logFetch(url).then(res => res.body.getReader());
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this.set('reader', reader);
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const decoder = new TextDecoder();
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while (!streamClosed) {
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yield reader.read().then(({ value, done }) => {
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streamClosed = done;
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this.get('write')(decoder.decode(value, { stream: true }));
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});
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}
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}),
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});
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