51 lines
1.8 KiB
JavaScript
51 lines
1.8 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.streamCollector = void 0;
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const util_base64_browser_1 = require("@aws-sdk/util-base64-browser");
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const streamCollector = (stream) => {
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if (typeof Blob === "function" && stream instanceof Blob) {
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return collectBlob(stream);
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}
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return collectStream(stream);
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};
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exports.streamCollector = streamCollector;
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async function collectBlob(blob) {
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const base64 = await readToBase64(blob);
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const arrayBuffer = (0, util_base64_browser_1.fromBase64)(base64);
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return new Uint8Array(arrayBuffer);
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}
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async function collectStream(stream) {
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let res = new Uint8Array(0);
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const reader = stream.getReader();
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let isDone = false;
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while (!isDone) {
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const { done, value } = await reader.read();
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if (value) {
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const prior = res;
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res = new Uint8Array(prior.length + value.length);
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res.set(prior);
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res.set(value, prior.length);
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}
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isDone = done;
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}
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return res;
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}
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function readToBase64(blob) {
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return new Promise((resolve, reject) => {
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const reader = new FileReader();
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reader.onloadend = () => {
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var _a;
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if (reader.readyState !== 2) {
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return reject(new Error("Reader aborted too early"));
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}
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const result = ((_a = reader.result) !== null && _a !== void 0 ? _a : "");
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const commaIndex = result.indexOf(",");
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const dataOffset = commaIndex > -1 ? commaIndex + 1 : result.length;
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resolve(result.substring(dataOffset));
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};
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reader.onabort = () => reject(new Error("Read aborted"));
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reader.onerror = () => reject(reader.error);
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reader.readAsDataURL(blob);
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});
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}
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