如何在 nodejs 写的 api 接口中将上传的图片再 post 给另一个 api 接口

我写的 nodejs 接口是基于 koa 框架的，并使用 koa-better-body 将上传的文件解析，解析得到的文件数据如下:

File {
  _events: [Object: null prototype] {},
  _eventsCount: 0,
  _maxListeners: undefined,
  size: 297525,
  path: '/tmp/upload_0be4ede06f899420d94441f9d64ff49d',
  name: 'AIRBUS_HoF_2018_Screenshot1.jpeg',
  type: 'image/jpeg',
  hash: null,
  lastModifiedDate: 2020-02-12T06:32:46.177Z,
  _writeStream: WriteStream {
    _writableState: WritableState {
      objectMode: false,
      highWaterMark: 16384,
      finalCalled: true,
      needDrain: false,
      ending: true,
      ended: true,
      finished: true,
      destroyed: true,
      decodeStrings: true,
      defaultEncoding: 'utf8',
      length: 0,
      writing: false,
      corked: 0,
      sync: false,
      bufferProcessing: false,
      onwrite: [Function: bound onwrite],
      writecb: null,
      writelen: 0,
      bufferedRequest: null,
      lastBufferedRequest: null,
      pendingcb: 0,
      prefinished: true,
      errorEmitted: false,
      emitClose: false,
      autoDestroy: false,
      bufferedRequestCount: 0,
      corkedRequestsFree: [Object]
    },
    writable: false,
    _events: [Object: null prototype] {},
    _eventsCount: 0,
    _maxListeners: undefined,
    path: '/tmp/upload_0be4ede06f899420d94441f9d64ff49d',
    fd: null,
    flags: 'w',
    mode: 438,
    start: undefined,
    autoClose: true,
    pos: undefined,
    bytesWritten: 297525,
    closed: true
  }
}

然后如何将图片转发给另一个 api 接口呢（我是打算把图片上传至图床 api ），有没有办法将发送来的 file 数据流直接发个另一个 api，求大佬给个解决思路，只要说一下需要用的库和大概的思路就行，谢谢了