This is a recursive function that transforms any JSON object into a Dictionary, ready to be saved into Firebase: Simple magic!

JSON2Dictionary.swift

//JSON is created using the awesome SwiftyJSON pod
func json2dic(j: JSON) -> [String:AnyObject] {
    var post = [String:AnyObject]()
    for (key, object) in j {
        post[key] = object.stringValue
        if object.stringValue == "" {
            post[key] = json2dic(object)
        }
    }
    return post
}