@nwpr/pass-js/dist/lib/yazul-promisified.js

Apple Wallet Pass generating and pushing updates from Node.js

import { promisify } from 'util';
import { EventIterator } from 'event-iterator';
import { ZipFile, fromBuffer as ZipFromBuffer } from 'yauzl';
import { streamToBuffer } from './stream-to-buffer.js';
// Promisifying yauzl
Object.defineProperties(ZipFile.prototype, {
    [Symbol.asyncIterator]: {
        enumerable: true,
        writable: false,
        configurable: false,
        value() {
            return new EventIterator(queue => {
                this.addListener('entry', queue.push);
                this.addListener('end', queue.stop);
                this.addListener('error', queue.fail);
            })[Symbol.asyncIterator]();
        },
    },
    openReadStreamAsync: {
        enumerable: true,
        writable: false,
        configurable: false,
        // eslint-disable-next-line @typescript-eslint/unbound-method
        value: promisify(ZipFile.prototype.openReadStream),
    },
    getBuffer: {
        enumerable: true,
        writable: false,
        configurable: false,
        async value(entry) {
            const stream = await this.openReadStreamAsync(entry);
            return streamToBuffer(stream);
        },
    },
});
export const unzipBuffer = promisify(ZipFromBuffer);
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