Array params are always sent as `formData` on GET requests

[newstler]

Hello, and thank you for such an amazing piece of software.

I'm not sure how it was planned to be, but I've noticed that array params are always been sent as formData, even on GET requests. However, any other than query params are not usually accepted when sending the GET requests.

Yep, it's possible to set param_type through documentation: {}, but that's not always comfortable to do.

Here's my little fix: https://github.com/newstler/grape-swagger/pull/1/commits/f66655462ba7140a113338c0021076bbb330e810

[LeFnord]

please add a spec to your fix and open a PR

[fullc0ntr0l]

Same for me

[fullc0ntr0l]

Actually you can use param_type option:

optional :ids, type: [Integer], default: [], documentation: { param_type: 'query' }