open-next-cdk
Version:
Deploy a NextJS app using OpenNext packaging to serverless AWS using CDK
32 lines (31 loc) • 1.14 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.blobReader = void 0;
const util_base64_1 = require("@smithy/util-base64");
function blobReader(blob, onChunk, chunkSize = 1024 * 1024) {
return new Promise((resolve, reject) => {
const fileReader = new FileReader();
fileReader.onerror = reject;
fileReader.onabort = reject;
const size = blob.size;
let totalBytesRead = 0;
const read = () => {
if (totalBytesRead >= size) {
resolve();
return;
}
fileReader.readAsDataURL(blob.slice(totalBytesRead, Math.min(size, totalBytesRead + chunkSize)));
};
fileReader.onload = (event) => {
const result = event.target.result;
const dataOffset = result.indexOf(",") + 1;
const data = result.substring(dataOffset);
const decoded = (0, util_base64_1.fromBase64)(data);
onChunk(decoded);
totalBytesRead += decoded.byteLength;
read();
};
read();
});
}
exports.blobReader = blobReader;