Created
January 3, 2017 15:02
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ES6 written, XMLHttpRequest wrapper for RxJS
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class ApiRequest { | |
observableRequest(url) { | |
return Rx.Observable.fromPromise(this.__makeRequest(url, 'GET')); | |
} | |
__makeRequest(url, method) { | |
return new Promise((resolve, reject) => { | |
let xhr = new XMLHttpRequest(); | |
Rx.Observable | |
.fromEvent(xhr, 'load') | |
.map(ev => ev.target) | |
.subscribe(req => { | |
if (req.status >= 200 && req.status < 300) { | |
resolve(req.response); | |
} else { | |
reject(req.statusText); | |
} | |
}); | |
Rx.Observable | |
.fromEvent(xhr, 'error') | |
.map(ev => ev.target) | |
.subscribe(req => reject(req.statusText)); | |
xhr.open(method, url, true); | |
xhr.send(null); | |
}); | |
} | |
} | |
// Usage | |
new ApiRequest().observableRequest('http://pokeapi.co/api/v2/pokemon/1').subscribe(response => console.log(response)); |
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