How can I get data inside of completionHandler for Alamofire.responseJSon - swift

Question

I'm currently making app for Destiny 2 API.
and I'm struggling with this issue
this is my whole function code that makes hash data to item name
I want to return that name variable which is guarded last, but that completion handler
runs after function is end.
I searched to internet, but almost everyone just used this data inside of it, not
function return.
that I only need is " Parse json and get returned data I want "
is there any idea please?
item parameter means " item hash to get name of it "
lang parameter means " language to return " if this is "en" then, it should return English.
here's the data I pared too " https://pastebin.com/1tV6fx9F "
func hashToName(item: String, lang: String = "ko") (" want to return String "-> String ){
let url = String(format: "https://www.bungie.net/platform/Destiny2/Manifest/DestinyInventoryItemDefinition/\(item)")
let param: [String: String] = ["lc": "\(lang)"]
let head: HTTPHeaders = ["x-api-key": "b21e4d2d33234b82be6e56893554974b"]
let doNetwork = AF.request(url, method:.get, parameters: param, encoder: URLEncodedFormParameterEncoder.default, headers: head)
doNetwork.responseJSON {
response in
switch response.result {
case .success(let site):
guard let dict = site as? NSDictionary else { return }
guard let res = dict["Response"] as? NSDictionary else { return }
guard let prop = res["displayProperties"] as? NSDictionary else { return }
guard let name: String = prop["name"] as? String else { return }
print(name) // data I want to return
case .failure(let err):
print(err.localizedDescription)
}
}
}

Answer 1

func hashToName(item: String, lang: String = "ko", returnString: #escaping (String)->()) {
let url = String(format: "https://www.bungie.net/platform/Destiny2/Manifest/DestinyInventoryItemDefinition/\(item)")
let param: [String: String] = ["lc": "\(lang)"]
let head: HTTPHeaders = ["x-api-key": "b21e4d2d33234b82be6e56893554974b"]
let doNetwork = AF.request(url, method:.get, parameters: param, encoder: URLEncodedFormParameterEncoder.default, headers: head)
doNetwork.responseJSON {
response in
switch response.result {
case .success(let site):
guard let dict = site as? NSDictionary else { return }
guard let res = dict["Response"] as? NSDictionary else { return }
guard let prop = res["displayProperties"] as? NSDictionary else { return }
guard let name: String = prop["name"] as? String else { return }
returnString(name)
print(name) // data I want to return
case .failure(let err):
print(err.localizedDescription)
}
}
}
//How to use
hashToName(item: "Your string") { str in
print(str)
}