ios - Swift3 Storekit - Cast string array to Set<ProductIdentifier> -


i trying implement storekit in app purchases. following hardcoded value works fine:

my globals struct: 

static var productidentifiers: set<productidentifier> = ["com.app.myiap"] static var store = iaphelper(productids: globals.productidentifiers)

in function: 

globals.store = iaphelper(productids: productidentifiers)

but when try create identifiers dynamically, error:

var stridentifiers = [string]() subscription in subscriptions {     stridentifiers.append(subscription["id"] as! string) } let productidentifiers: set<productidentifier> = stridentifiers globals.store = iaphelper(productids: productidentifiers) globals.store.requestproducts{success, products in     if success {         .......     } }

i error:

cannot assign value of type '[string]' type 'set<productidentifier>' (aka 'set<string>')

any guidance appreciated

subscription["id"] returns array of type [productidentifier].

you can not cast array type as! productidentifier.

either:

change cast as! [productidentifier]

or

check place set subscription["id"]. maybe set array accidentally.

i assume later, "id" should productidentifier, not array.


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