RxSwift parse JSON array - json

Question

I'm trying to create an array of dictionaries from JSON response.
Here is the code.
_ = postView.textView.rx.text
.subscribe(onNext: {[unowned self] _ in
let client = Alamofire.SessionManager.default
_ = client.request(Router.getFriends())
.rx_responseJSON()
.subscribe(onNext: { [weak self] data in
var names = [String]()
do {
let json = try JSONSerialization.jsonObject(with: data) as? [String: Any], //'var' declarations with multiple variables cannot have explicit getters/setters
let friends = json["user"] as? [[String: Any]] {
for friend in friends {
if let name = friend["first_name"] as? String {
names.append(name)
}
}
}
} catch {
print("Error deserializing JSON: \(error)")
}
print(names)
}, onError: { (error) -> Void in
debugPrint("Error: \(error)")
})
})
This is the error I'm getting
'var' declarations with multiple variables cannot have explicit
getters/setters
This is the JSON response,
{
"user": [
{
"id": 2,
"first_name": "Knysys",
"photo": "https://graph.facebook.com/437334666655912/picture/?type=large",
"last_seen_event": null,
"blocked": false
},
{
"id": 3,
"first_name": "ATester",
"photo": "https://graph.facebook.com/379988632393252/picture/?type=large",
"last_seen_event": 7,
"blocked": false
}
]
}
The desired output is this,,
var friends = [
[
"firstName": "SmartApps",
"photo": "https://graph.facebook.com/1248984075179327/picture/?type=large"
],
[
"firstName": "Knysys",
"photo": "https://graph.facebook.com/437334666655912/picture/?type=large"
],
[
"firstName": "ATester",
"photo": "https://graph.facebook.com/379988632393252/picture/?type=large"
]
]
Thanks in advance!

Answer 1

You forgot the if in the line let json = ...
do {
if let json = try JSONSerialization.jsonObject(with: data) as? [String: Any],
let friends = json["user"] as? [[String: Any]] {
for friend in friends {
if let name = friend["first_name"] as? String {
names.append(name)
}
}
}
} catch {
print("Error deserializing JSON: \(error)")
}

Answer 2

Here is the code that worked,
let client = Alamofire.SessionManager.default
_ = client.request(Router.getFriends())
.rx_responseJSON()
.subscribe(onNext: { [weak self] data in
self?.friends.removeAll()
let json = data as? [String: Any]
let friends = json?["user"] as! [[String: Any]]
for i in 0 ..< friends.count{
let firstName: String = (friends[i]["first_name"] as! NSString) as String
let photo: String = (friends[i]["photo"] as! NSString) as String
let dict = [
"firstName" : firstName,
"photo" : photo
]
self?.friends.append(dict)
}
self?.friendTableView.reloadData()
self?.friendTableView.sizeToFit()
}, onError: { (error) -> Void in
debugPrint("Error retrieving friends: \(error)")
})