Converting swift array into object for json serialization

Question

The following code does not compile in Swift 2.0

var eventsIds : [CalendarEventLink?] = [CalendarEventLink?](count: 5, repeatedValue: nil)
var data = try NSJSONSerialization.dataWithJSONObject(eventsIds, options: [])

I'm getting error:

'[CalendarEventLink?]' is not convertible to '[AnyObject]'

How can I serialise array to json in swift?

[CalendarEventLink?](count: 5, repeatedValue: nil) creates an array of 5 x nil: [nil, nil, nil, nil, nil], but you can't encode nil into JSON. — Eric Aya
– Eric Aya, Commented Oct 9, 2015 at 16:09
You have to be able to unwrap this in order for it to be serializable. You can try it with an if...let to decide if it is not an optional. — pbush25
– pbush25, Commented Oct 9, 2015 at 16:23
So basically, you say that the elements of an swift array must be not optional to be able to used as json object? — Dzior
– Dzior, Commented Oct 9, 2015 at 21:46

Dzior · Accepted Answer · 2015-10-12 09:06:28Z

1

var eventsIds : [CalendarEventLink] = []
var data = try NSJSONSerialization.dataWithJSONObject(eventsIds, options: [])

As mentioned in comments above, you can't send array of optional items into [AnyObject]

answered Oct 12, 2015 at 9:06

Dzior

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