Any way to get the response body during HTTP errors?
I'm hitting an API that will occasionally throw a HTTP 403 error, and the response body can give some extra information in the form of json, however for the life of me I can't seem to get the information back out from the Alamofire response objects. I see the information in developer tools if I hit the API via chrome. Here's my code:
Alamofire.request(mutableURLRequest).validate().responseJSON() {
(response) in
switch response.result {
case .Success(let data):
if let jsonResult = data as? NSDictionary {
completion(jsonResult, error: nil)
} else if let jsonArray = data as? NSArray {
let jsonResult = ["array" : jsonArray]
completion(jsonResult, error: nil)
}
case .Failure(let error):
//error tells me 403
//response.result.data can't be cast to NSDictionary or NSArray like
//the successful cases, how do I get the response body?
}
I've queried pretty much every object attached to the response, but it doesn't seem to give me the response body back in the case of HTTP errors. Is there a work-around or something I'm missing here?
Solution 1:
I asked this question on their github page and got an answer from cnoon:
swift 2:
if let data = response.data {
let json = String(data: data, encoding: NSUTF8StringEncoding)
print("Failure Response: \(json)")
}
swift 3:
if let data = response.data {
let json = String(data: data, encoding: String.Encoding.utf8)
print("Failure Response: \(json)")
}
https://github.com/Alamofire/Alamofire/issues/1059
I just left out the encoding part, by doing this you are able to get the response json even in the case of errors.
Solution 2:
Swift 5 to get body response easily in DefaultDataResponse extension :
String(data: data!, encoding: String.Encoding.utf8)