尝试将流上传到Azure存储时出现错误

Question

错误为：“错误[ERR_STREAM_WRITE_AFTER_END]：结束后写入”

好吧，似乎我对此主题缺乏理解，因为我确实在stackoverflow中搜索了此错误，并且有很多有关此的信息。

仍然，我无法解决我的问题。

问题是：它第一次起作用。第二次给出错误。

所以我正在尝试将HTML页面转换为docx，一切都很好。

docx不会写入文件夹，而是写入Blob。

然后，我尝试从该Blob创建流并将其通过管道传输到Azure Blob存储。

我认为我在这里缺少什么。

代码：

import * as HtmlDocx from "html-docx-js";
import * as fs from "fs";
import * as path from "path";
import * as stream from "stream";
import { AzureStorageService } from "../services/azure-storage.service";

const bufferStream: any = new stream.PassThrough();

export class DOCXGenerator {
  static async generateDocx(_data: any): Promise<any> {
    const inputFile: string = `${path.join(
      __dirname,
      "../templates/index.html"
    )}`;
    const outputFile: string = `${path.join(
      __dirname,
      "../uploads/" + _data.subtitle
    )}`;
    await fs.readFile(inputFile, "utf-8", async function(err, html) {
      let newHTML: any = html.replace(
        "uri",
        _data.subtitleURL.replace("/", "")
      );
      let newNewHTML: any = newHTML.replace(
        "titlesub",
        _data.subtitle.replace("/", "")
      );
      if (err) {
        throw err;
      }


      // ERROR STARTS HERE: 

      const docxAsBlob: any = await HtmlDocx.asBlob(newNewHTML);
      bufferStream.write(new Buffer(docxAsBlob));


      bufferStream.pipe(
        await AzureStorageService.createWriteStreamToBlockBlob(
          "container-name",_data.subtitle
        )
      );

      bufferStream.end();

      // ERROR ENDS HERE.
    });

    const newFileName: string = (("somne-prefix_" +
      _data.subtitle.replace("/", "")) as string)
      .split(" ")
      .join("_")
      .replace(/-/g, "_")
      .replace("pdf", "docx");
    return newFileName;
  }
}