javascript - 我在 Node js api 中收到 ERR_STREAM_WRITE_AFTER_END 。如何解决这个问题？

Question

当我从 ui 中点击上传文件 api 时，我遇到了一个问题，如下所示。我从 React JS 中访问 Node JS API，然后从 Node JS 中访问公共(public) API。

node version:- 10.15.3

npm version:- 6.4.1

API

router.route("/uploadLocaleFile").post(function(req, res, next) {
  req.on("data", data => {
    uploadFile(req, data, res);
  });
});

function uploadFile(req, data, res) {
  request
    .post({
      uri: `${notebookPath}/localfile/${req.query.experimentId}`,
      body: data,
      headers: {
        "Content-Type": req.headers["content-type"],
        Authorization: req.headers["authorization"]
      }
    })
    .pipe(res);
}

Answer 1

试试这个代码

router.route("/uploadLocaleFile").post(function(req, res, next) {
  const chunks = [];
  req
    .on('data', data => chunks.push(data))
    .on("end", _ => uploadFile(req, Buffer.concat(chunks), res)
  ;
});

function uploadFile(req, data, res) {
  request
    .post({
      uri: `${notebookPath}/localfile/${req.query.experimentId}`,
      body: data,
      headers: {
        "Content-Type": req.headers["content-type"],
        Authorization: req.headers["authorization"]
      }
    })
    .pipe(res);
}