26 lines
574 B
TypeScript
26 lines
574 B
TypeScript
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///<reference path="./window.extension.d.ts"/>
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// #docregion
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import {Pipe} from 'angular2/angular2';
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// #docregion pipe-metadata
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@Pipe({
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name: 'fetch',
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pure: false
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})
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// #enddocregion pipe-metadata
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export class FetchJsonPipe {
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private fetchedValue:any;
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private fetchPromise:Promise<any>;
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transform(value:string, args:string[]):any {
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if (!this.fetchPromise) {
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this.fetchPromise = window.fetch(value)
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.then(result => result.json())
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.then(json => {
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this.fetchedValue = json;
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});
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}
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return this.fetchedValue;
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}
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}
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