Type “Any” has no subscript members in Swift 3 during pulling array of data from server [duplicate]

Answer 1

Try casting json to [String: Any] before using it.

Also you seem to have an error here: if let couname = country["countryname"] as? [AnyObject]

You should cast it to an array of [String: AnyObject]: [[String: AnyObject]]

The adjusted code would look like:

do {
    let json = try JSONSerialization.jsonObject(with: data, options: .allowFragments) as! [String: Any]

    if let countries = json["Countries"] as? [[String: AnyObject]] {
        for country in countries {
            if let couname = country["countryname"] as? [AnyObject] {
                country_names.append(couname)
            }

            if let coucode = country["code"] as? [AnyObject] {
                country_codes.append(coucode)
            }

        }
    }
} catch {
    print("Error Serializing JSON: \(error)")
}

Answer 2

Use this instead of just a let json.

guard let json = try JSONSerialization.jsonObject(with: data, options: .allowFragments) as? [String:AnyObject] else { return }