import { Writable } from "stream"; export class BufferStream extends Writable { private data: Buffer[]; constructor() { super(); this.data = []; } // tslint:disable-next-line:no-any public _write(chunk: any, encoding: string, next: (err?: Error) => void): void { this.data.push(Buffer.from(chunk)); next(); } // tslint:disable-next-line:ban-types public end(cb?: Function): void { super.end(cb); this.emit("close"); } public get Buffer(): Buffer { return Buffer.concat(this.data); } }