Ios / AppSync

viewController.swift

//
//  ViewController.swift
//  GraphQL
//
//  Created by Geoff on 2/25/19.
//  Copyright © 2019 Beachead Technologies Inc. All rights reserved.
//

import UIKit
import AWSAppSync


class BaseTableViewController<T: UITableViewCell>: UITableViewController {
    
    let cellId = "cellId"
    
    var items = [Any]()
    
    var appSyncClient: AWSAppSyncClient?
    
    
    
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        print("got here.1")
        // Reference AppSync client for App Delegate
        let appDelegate = UIApplication.shared.delegate as! AppDelegate
        appSyncClient = appDelegate.appSyncClient
        print("got here!2")
         print("fetching data...3")
      
            appSyncClient?.fetch (query: ListInstructorsQuery(), cachePolicy: .returnCacheDataAndFetch)  { (result, error) in
            if error != nil {
                print(error?.localizedDescription ?? "error")
                return
            }
            print("hi")
          // Line 41 is where I'm having issues...
          result?.data?.listInstructors?.items!.forEach { print(($0?.file)! + " " + ($0?.id)!) }
            
        }
        
        
        
        tableView.register(T.self, forCellReuseIdentifier: cellId)
        
    }
    
    override func tableView(_ tableView: UITableView,
                            numberOfRowsInSection section: Int) -> Int {
        return items.count
    }
    
    override func tableView(_ tableView: UITableView, cellForRowAt IndexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: cellId, for: IndexPath) as! BaseCell
        
        cell.item = self.items[IndexPath.row]
        
        return cell
    }
    
}


class  BaseCell: UITableViewCell {
    
    var item: Any! {
        didSet {
            textLabel?.text = item as? String
        }
        
    }
    
    
}


class SomeListController: BaseTableViewController<BaseCell> {
    
    override func viewDidLoad() {
        super.viewDidLoad()
        items = ["hello", "world", "awesome"]
    }
}