.type('form') doesn't prepare Javascript arrays correctly

Please let me know if I am doing something wrong, but if I say something like:

var data = {
    interests: [300, 400]
}

request('/foo')
    .type('form')
    .send(data)
    .end()

The form data is sent as

interests: 300, 400

when it should be

interests[]: 300
interests[]: 400

I am able to get it to work if I do:

request('/foo')
    .type('form')
    .send($.param(data))
    .end()

but the reason I’m using superagent is so this will also work on Node and I’d rather not require in Node jQuery just for this.

With that said, is there a setting I’m missing that is not preparing the params correctly?

[kornelski]

This is intentional and IMHO correct.

The brackets [] are only an informal convention used by some frameworks/servers, but not all environments use it. There are web servers that expect repeated keys without brackets:

 http://example.com/service?value=1&value=2&value=3

If superagent always added [] to arrays, then it would not be able to create a URL like the one above.

The current implementation supports both cases. If you’d like an array with [] in the name, then put [] in the name explicitly:

request.get('/').query({'interests[]': [300, 400]});

[J-F-Liu]

Please note that jQuery.param() also has special treatment for object data.