when creating user object for firebase database Type 'Any' has no subscript members

Question

i want to retrive data from firebase. i was created a structure for user. but i am getting error in init method

Type 'Any' has no subscript members

struct userObj {
    var address:String!
    var name: String!
    var userId: String!
    var ref: DatabaseReference?
    var key: String!

    init(snapshot: DataSnapshot) {
        key = snapshot.key
        name = snapshot.value!["name"] as! String   // this line give error
        address = snapshot.value!["address"] as! String // this line give error
        userId = snapshot.value!["userId"] as! String // this line give error
        ref = snapshot.ref
    }
}

Surely snapshot.value!["name"] is not a valid type. Try giving proper type. — Tushar Sharma, Dec 15 '17 at 09:19

score 1 · Answer 1 · answered Dec 15 '17 at 09:40

DataSnapshot.value property is declared as var value: Any? { get }

It is not explicitly declared as dictionary type, but it may contain dictionary among other possible types

NSDictionary
NSArray
NSNumber (also includes booleans)
NSString

Before you can access dictionary (if you know there is one) you have to typecast it to get the actual dictionary you can use:

snapshot.value as? [String : AnyObject]

Please note that explicitly unwrapping optionals with ! will crash if there is no appropriate data of appropriate type.

when creating user object for firebase database Type 'Any' has no subscript members

1 Answers1