How to upload photo with Rubymotion? - objective-c

Question

I am building an iOS app using Rubymotion.
I need to let the user snap a photo with the camera and then upload it to a Rails 3 backend (with Paperclip) using the BubbleWrap Http module (or any better?).
How can I do this?
This is my code:
controller = UIImagePickerController.alloc.init
controller.sourceType = UIImagePickerControllerSourceTypeCamera
controller.mediaTypes = [KUTTypeImage]
controller.allowsEditing = true
controller.delegate = self
self.navigationController.presentModalViewController(controller, animated:true)
This I use after taking the shot:
metadata = info.objectForKey(UIImagePickerControllerMediaMetadata)
the_image = info.objectForKey(UIImagePickerControllerOriginalImage)
image = view.viewWithTag 3
image.image = the_image
picker.dismissModalViewControllerAnimated(true)
This is my upload code:
data = {access_token: TOKEN, id: task, image: image}
BubbleWrap::HTTP.get("#{URL}#{project}/message", {payload: data}) do |response|
if response.ok?
json = BubbleWrap::JSON.parse(response.body)
if json['total'] > 0
infos = json['taskinfos'].map {|ej| self.from_json(ej["taskinfo"])}
block.call(true, infos)
else
block.call(false, nil)
end
else
block.call(false, nil)
end
end

Answer 1

Uploading images should be done via a POST request and not a GET request like you have done. Most web servers have a limit to how big a GET request can be, and it is usually 8k, read here for more info maximum length of HTTP GET request? , so it's not suitable for images.
Play around with bubble motion and look at the requests in the log files on the server to see what comes out. Try to make the request look like a request made from within rails itself, ie from a web page where you upload to the the controller.
So you could change the request to POST and let people know what error messages you get.