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如何知道 Node.js stream pipe 完成

· One min read
Alan
Alan
Maintainer of blog

Node.js 的流调用 pipe 方法之后会返回一个新的流, 监听这个新流的finish事件就可以知道pipe完成了:

axios({
    method: "GET",
    url: "https://www.bilibili.com/",
    responseType: "stream"
}).then((response: AxiosResponse<Stream>) => {
  const newStream = response.data.pipe(fs.createWriteStream(`./save-file.html`));
  newStream.on("finish", () => {
    // 这里流pipe已经完成
  });
});