syncano-files.swift

class Book : SCDataObject {
    var title = ""
    var subtitle = ""
    // add SCFile property as any other property on your class
    var cover : SCFile? = nil
}

class MyClass {
    
    func sendImage() {
        let book = Book()
        if let image = UIImage(named: "MyImage.png") {
            let imageData = UIImagePNGRepresentation(image)
            book.cover = SCFile(aData: imageData)
            book.saveWithCompletionBlock({ error in
                guard error == nil else {
                    //handle error
                    print(error)
                    return
                }
                //saved ok
            })
        }
        
    }
    
    func getImage() {
        let book = Book()
        book.objectId = 3
        book.fetchWithCompletion { error in
            // here, after downloading the object from Syncano, it will only hold a reference to the file
            // it's still up to developer to know best moment when to fetch the file
            
            // if `storeDataAfterFetch` is set to `false`, file will be available
            // only in `data` variable inside `fetchInBackgroundWithCompletion`
            // if `storeDataAfterFetch` is set to `true`, file data will be also saved as book.data
            // accesible later
            book.cover?.storeDataAfterFetch = true
            book.cover?.fetchInBackgroundWithCompletion({ data, error in
                guard error == nil, let data = data else {
                    print(error)
                    return
                }
                //do something with your data
                //e.g. make an UIImage out of it
                let image = UIImage(data: data)
            })
        }
    }
}