使用纯nodejs上传文件

Question

我正在尝试使用纯nodejs上传文件

      var req = require('https').request(myoptions, function afterRequestSend(req,res){
        // THIS BLOCK NEVER CALLED. WHY ?
      });
      var boundayKey = 'abc';
      req.write(
        '--' + boundaryKey + '\r\n'
        + 'Content-Type: '+ ('application/octet-stream') +'\r\n'
        + 'Content-Disposition: form-data; name="'+ ('file1') +'"; filename="'+ ('filename') +'"\r\n'
      );
      someReadableStream.pipe(req, { end : false });
      someReadableStream.once('end',req.end.bind(req,'\r\n--' + boundaryKey + '--'));
      someReadableStream.once('error',reject);

此后它的永无止境的过程

HTTP 17278: sockets service.com:443::::::::: 2
HTTP 17278: write ret = false
HTTP 17278: write ret = false
HTTP 17278: write ret = false
HTTP 17278: write ret = false
HTTP 17278: CLIENT socket onClose
HTTP 17278: removeSocket service.com:443::::::::: writable: false
HTTP 17278: HTTP socket close
HTTP 17278: write ret = true
HTTP 17278: outgoing message end.

永远不会调用after请求回调。 有什么帮助吗？

PS：我不愿意使用任何lib。只是纯粹的nodejs。