Invalid top-level type in JSON write'

Question

I am passing some parameter to api , to done add to cart function. But when i pass the parameter , it showing the crash Invalid top-level type in JSON write\' i

Answer 1

There is a subtle difference

Try using this

JSONSerialization.jsonObject(with: data, options: []) as? [String:AnyObject] 

instead of

JSONSerialization.data(withJSONObject: data, options: []) as? [String:AnyObject]