Node, Express and { [Error: socket hang up] code: 'ECONNRESET' }

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I’m not sure how many scenarios this issue would crop up in, but I wanted to at least post about the one that I found:

{ [Error: socket hang up] code: 'ECONNRESET'}

1	{ [Error: socket hang up] code: 'ECONNRESET'}

This happens on my iojs/express api that I’m working on, and trying to do a file upload test with mocha and supertest.

If you are doing something like this:

request(app)
    .post('/upload')
    .attach('file', 'fixtures/photo.jpg')
    .send({'key':'value'})
    .end(function(){...});

request(app)

.post('/upload')

.attach('file', 'fixtures/photo.jpg')

.send({'key':'value'})

.end(function(){...});

.attach() is not compatible with .send().

You need to remove .send() and put that data into .field() function calls like this:

.post('/upload')
.field('user_id', 1)
.field('detail', {...})
.attach('file', __dirname + '/fixtures/photo.jpg')
.end(...)

.post('/upload')

.field('user_id', 1)

.field('detail', {...})

.attach('file', __dirname + '/fixtures/photo.jpg')

.end(...)

Doing this completely resolved the { [Error: socket hang up] code: ‘ECONNRESET’} error that I was receiving.

Hope this helps anyone with the same issue.

Node, Express and { [Error: socket hang up] code: ‘ECONNRESET’ }