RDSDemo - GraphQL Query

RDSDemo-AppSync-Query.swift

// GraphQL Query - List all AWS Services from MyAWSServices Table
// Returned cached list and then fetch
func getServicesQuery(){
    appSyncClient?.fetch(query: ListAwsServicesQuery(), cachePolicy: .returnCacheDataAndFetch) { (result, error) in
        if error != nil {
            print(error?.localizedDescription ?? "")
            return
        }

        guard let services = result?.data?.listAwsServices else { return }
        
        self.awsServices = services as! [ListAwsServicesQuery.Data.ListAwsService]

        self.tableView.reloadData()
    }
}