import Contacts

let store = CNContactStore()
let keysToFetch = [CNContactGivenNameKey, CNContactFamilyNameKey, CNContactPhoneNumbersKey]

store.requestAccess(for: .contacts, completionHandler: { (granted, error) in
    if granted {
        let contactFetchRequest = CNContactFetchRequest(keysToFetch: keysToFetch as [CNKeyDescriptor])
        do {
            try store.enumerateContacts(with: contactFetchRequest, usingBlock: { (contact, _) in
                let fullName = "\(contact.givenName) \(contact.familyName)"
                let phoneNumbers = contact.phoneNumbers
                // 연락처 정보 활용
            })
        } catch {
            // Error handling
        }
    } else {
        // Access denied
    }
})