Part has no `pause` method

[seanadkinson]

Hi there,

I'm trying to proxy a file upload through to a request.post() on another domain. I may be doing this wrong, but I think the issue is that the part doesn't have a pause() method.

var form = new formidable.IncomingForm();
form.parse(req);
form.onPart = function(part) {
    var r = request({
        method: 'POST',
        url: someUrl,
        headers: extractRequestHeaders(req)
    });
    r.form().append('file', part);
    r.pipe(res);
}

According to request docs, r.form().append can take a read stream such as fs.createReadStream().

Here is the result of the upload:

TypeError: Object #<Stream> has no method 'pause'
    at Function.DelayedStream.create (/Users/seanadkinson/code/hthu-assets/node_modules/request/node_modules/form-data/node_modules/combined-stream/node_modules/delayed-stream/lib/delayed_stream.js:35:12)
    at FormData.CombinedStream.append (/Users/seanadkinson/code/hthu-assets/node_modules/request/node_modules/form-data/node_modules/combined-stream/lib/combined_stream.js:45:30)
    at FormData.append (/Users/seanadkinson/code/hthu-assets/node_modules/request/node_modules/form-data/lib/form_data.js:43:3)
    at IncomingForm.form.onPart (/Users/seanadkinson/code/hthu-assets/routes/eligibilityProxy.js:54:18)
    at MultipartParser.parser.onHeadersEnd (/Users/seanadkinson/code/hthu-assets/node_modules/formidable/lib/incoming_form.js:410:10)
    at callback (/Users/seanadkinson/code/hthu-assets/node_modules/formidable/lib/multipart_parser.js:102:31)
    at MultipartParser.write (/Users/seanadkinson/code/hthu-assets/node_modules/formidable/lib/multipart_parser.js:215:9)
    at IncomingForm.write (/Users/seanadkinson/code/hthu-assets/node_modules/formidable/lib/incoming_form.js:156:34)
    at IncomingMessage.<anonymous> (/Users/seanadkinson/code/hthu-assets/node_modules/formidable/lib/incoming_form.js:122:12)
    at IncomingMessage.emit (events.js:95:17)

Am I reading the error correctly? Is there a different way I should do what i'm doing?

Thank you, Sean

[KevinPoole]

Does anybody know anything about this? I have run into the same error for whatever reason.

[naugtur]

Looks like the stream implementation under that is not entirely compatible with new node streams.

To check if that's the case, you can try a workaround:
Check if piping through a generic duplex stream that can be paused helps.
Stuff like this can also be used: https://www.npmjs.org/package/pause-stream

[iliakan]

That's because a part it is not a ReadableStream, but a generic Stream.

I guess that's an old history, probably Streams2 or even Stream3 in Node 0.11 would be good enough for @felixge to turn on them :)

[GrosSacASac]

soon

[tunnckoCore]

Probably fixed by #531