tableView Cell not displaying data, What's the issue? (Swift 3) - ios

Question

So I have a view controller that is parsing some bitcoin price data. The function successfully responds and parses the data, but I cannot seem to get it to display in tableView.
I have already tested the outlets and identities via a test cell, which does work.
What am I doing wrong?
Code: `
import UIKit
import Alamofire
import AlamofireObjectMapper
import ObjectMapper
class Response: Mappable{
var data: [Amount]?
required init?(map: Map){
}
func mapping(map: Map) {
data <- map["data"]
}
}
class Amount: Mappable {
var data : String?
required init?(map: Map){
}
func mapping(map: Map) {
data <- map["data.amount"]
}
}
class ViewController: UIViewController, UITableViewDelegate,
UITableViewDataSource {
var mount = [String]()
var am = [String]()
#IBOutlet var tableView: UITableView!
func Call_bitcoin() {
let url = "https://api.coinbase.com/v2/prices/BTC-USD/buy"
Alamofire.request(url).responseObject{ (response: DataResponse<Amount>) in
let mount = response.result.value
let am = mount?.data
self.tableView.reloadData()
return
}
}
override func viewDidLoad() {
super.viewDidLoad()
self.tableView.register(UITableViewCell.self, forCellReuseIdentifier: "cell")
tableView.delegate = self
tableView.dataSource = self
Call_bitcoin()
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return am.count
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
print("You tapped cell number \(indexPath.row).")
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = self.tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)
print(am)
cell.textLabel?.text = am[indexPath.row]
return cell
}
}
`

Answer 1

You want to add elements in your Call_bitcoin() function but you are doing it wrong. You have already created var am = [String](). So you don't need to use let am = mount?.data. You could add your data in your am variable which is already created. You need to change some of your code lines in Call_bitcoin() function:
From:
let mount = response.result.value
let am = mount?.data
To:
let mount = response.result.value
am.append(mount?.data) // This part should be set by your 'mount?.data' value type

Answer 2

Your JSON not returning array, it's having dictionary.that why you get
am.count = 0
Solve first your data and put data into the array.
{"data":{"amount":"2414.88","currency":"USD"},"warnings":[{"id":"missing_version","message":"Please supply API version (YYYY-MM-DD) as CB-VERSION header","url":"https://developers.coinbase.com/api#versioning"}]}