Egg: the multipart request can't be consumed twice

[Erchoc]

根据egg官方文档，https://eggjs.org/zh-cn/basics/controller.html#%E8%8E%B7%E5%8F%96%E4%B8%8A%E4%BC%A0%E7%9A%84%E6%96%87%E4%BB%B6

使用流模式上传文件，直接复制官方代码，postman跑文件上传接口出错：
代码如下：

async upload() {
    const ctx = this.ctx;
    const stream = await ctx.getFileStream();  // 此处未通过
    const name = 'egg-multipart-test/' + path.basename(stream.filename);
    // 文件处理，上传到云存储等等
    let result;
    try {
      result = await ctx.oss.put(name, stream);
    } catch (err) {
      // 必须将上传的文件流消费掉，要不然浏览器响应会卡死
      await sendToWormhole(stream);
      throw err;
    }

    ctx.body = {
      url: result.url,
      // 所有表单字段都能通过 `stream.fields` 获取到
      fields: stream.fields,
    };
  }

返回结果：

the multipart request can't be consumed twice

[egg-bot]

Hello @Erchoc. Please provide a reproducible example by creating a github repo.

Issues labeled by Need Reproduce will be closed if no activities in 7 days.

[fengmk2]

If you using the stream mode, please don't set mode to file

// config/config.default.js
exports.multipart = {
  mode: 'stream',
};

[Ssysshy]

@egg-bot @fengmk2 yeah i've got the same problem ，but this problem was habbened on prod env, when i was debugging in local env，the problem was gone，that made me wonder。

[cyseria]

got the same problem in prod env too

[popomore]

Please follow the document.

[HouWin]

If you using the stream mode, please don't set mode to file

// config/config.default.js
exports.multipart = {
  mode: 'stream',
};

Thank you ,sir