swift 3 REST api - get call returns 1 byte instead of 1 (as an int), why? - rest

Question

So I am trying to get a number from my DB. My get call returns 1 when I use postman. However when I run this code underneath, I get 1 byte.
func getDbVersionFromServer(callback: #escaping (_ serverDbVersion: Int16)-> ()) {
let urlPath = "\(baseApiUrl)/users/getDBVersion"
let url = NSURL(string: urlPath)
let session = URLSession.shared
let request = NSMutableURLRequest(url: url as! URL)
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
getTokensFromDB(){dbTokens in
request.addValue(dbTokens["accessToken"]!, forHTTPHeaderField: "accessToken")
request.addValue(dbTokens["refreshToken"]!, forHTTPHeaderField: "refreshToken")
request.httpMethod = "GET"
let task = session.dataTask(with: request as URLRequest, completionHandler: {data, response, error -> Void in
if let httpResponse = response as? HTTPURLResponse {
if (httpResponse.statusCode == 200){
let aToken = httpResponse.allHeaderFields["accessToken"] as? String
updateAccessTokenOnly(newAccessToken: aToken!)
let dbVersion = data
print("here is data: \(data!) and here is dbVersion \(dbVersion!)")
callback(0)
}
}
})
task.resume()
}
}
What am I doing wrong here? And how do I get my 1? Thanks in advance!

Answer 1

data is type of Data so if your response is not returning JSON you can use String(data:encoding:) to get your expected result.
let task = session.dataTask(with: request as URLRequest, completionHandler: {data, response, error -> Void in
if let httpResponse = response as? HTTPURLResponse {
if (httpResponse.statusCode == 200){
let aToken = httpResponse.allHeaderFields["accessToken"] as? String
updateAccessTokenOnly(newAccessToken: aToken!)
if let data = data, let stringResponse = String(data: data, encoding: .utf8) {
print("Response \(stringResponse)")
}
callback(0)
}
}
})
task.resume()