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62 lines
1.4 KiB
62 lines
1.4 KiB
import { BaseClient, BaseResponse } from './base.js';
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import { AbortError } from '../../utils.js';
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class XHRResponse extends BaseResponse {
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/**
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* BaseResponse facade for XMLHttpRequest
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* @param {XMLHttpRequest} xhr
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* @param {ArrayBuffer} data
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*/
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constructor(xhr, data) {
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super();
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this.xhr = xhr;
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this.data = data;
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}
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get status() {
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return this.xhr.status;
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}
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getHeader(name) {
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return this.xhr.getResponseHeader(name);
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}
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async getData() {
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return this.data;
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}
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}
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export class XHRClient extends BaseClient {
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constructRequest(headers, signal) {
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return new Promise((resolve, reject) => {
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const xhr = new XMLHttpRequest();
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xhr.open('GET', this.url);
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xhr.responseType = 'arraybuffer';
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for (const [key, value] of Object.entries(headers)) {
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xhr.setRequestHeader(key, value);
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}
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// hook signals
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xhr.onload = () => {
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const data = xhr.response;
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resolve(new XHRResponse(xhr, data));
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};
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xhr.onerror = reject;
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xhr.onabort = () => reject(new AbortError('Request aborted'));
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xhr.send();
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if (signal) {
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if (signal.aborted) {
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xhr.abort();
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}
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signal.addEventListener('abort', () => xhr.abort());
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}
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});
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}
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async request({ headers, signal } = {}) {
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const response = await this.constructRequest(headers, signal);
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return response;
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}
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}
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