Put request failing with Alamofire 2.0 - swift

Question

I have recently upgraded to Alamofire 2.0, and now my Put request is failing with a 400 error, when it was previously working properly. I perform the call with the code:
Alamofire.request(Router.Put(query: url, params: params, encoding: .JSON))
.validate()
.responseJSON() {
(request, response, result) in
print("request: \(request)")
print("response: \(response)")
print("result: \(result)")
switch result {
case .Success(_):
// success
case .Failure(let data, _):
// error occured
}
}
and my custom Router class:
enum Router: URLRequestConvertible {
case Get(query: String, params: [String: AnyObject]?)
case Post(query: String, params: [String: AnyObject]?)
case Put(query: String, params: [String: AnyObject]?, encoding: ParameterEncoding)
case Delete(query: String, params: [String: AnyObject]?)
var URLRequest: NSMutableURLRequest {
var encodeMethod: Alamofire.ParameterEncoding = Alamofire.ParameterEncoding.URL
// Default to GET
var httpMethod: String = Alamofire.Method.GET.rawValue
let (path, parameters): (String, [String: AnyObject]?) = {
switch self {
case .Get(let query, let params):
// Set the request call
httpMethod = Alamofire.Method.GET.rawValue
// Return the query
return (query, params)
case .Post(let query, let params):
// Set the request call
httpMethod = Alamofire.Method.POST.rawValue
// Return the query
return (query, params)
case .Put(let query, let params, let encoding):
// Set the request call
httpMethod = Alamofire.Method.PUT.rawValue
// Set the encoding
encodeMethod = encoding
// Return the query
return (query, params)
case .Delete(let query, let params):
// Set the request call
httpMethod = Alamofire.Method.DELETE.rawValue
// Return the query
return (query, params)
}
}()
// Create the URL Request
let URLRequest = NSMutableURLRequest(URL: NSURL(string: Globals.BASE_URL + path)!)
// set header fields
if let key = NSUserDefaults.standardUserDefaults().stringForKey(Globals.NS_KEY_SESSION) {
URLRequest.setValue(key, forHTTPHeaderField: "X-XX-API")
}
// Add user agent
if let userAgent = NSUserDefaults.standardUserDefaults().stringForKey(Globals.NS_KEY_USER_AGENT) {
URLRequest.setValue(userAgent, forHTTPHeaderField: "User-Agent")
}
// Set the HTTP method
URLRequest.HTTPMethod = httpMethod
URLRequest.cachePolicy = NSURLRequestCachePolicy.ReloadIgnoringLocalCacheData
return encodeMethod.encode(URLRequest, parameters: parameters).0
}
}
Instead of the call being a success, the response is:
response: Optional(<NSHTTPURLResponse: 0x7fcee15b34d0> { URL: https://apiurl } { status code: 400, headers {
"Cache-Control" = "no-cache";
"Content-Length" = 26;
"Content-Type" = "application/json; charset=utf-8";
Date = "Tue, 15 Sep 2015 15:33:50 GMT";
Expires = "-1";
Pragma = "no-cache";
Server = "Microsoft-IIS/8.5";
} })
I looked into the problem and on the server side, Content-Type is coming in as blank for the request, when it should be coming in as application/json. The Content-Type should automatically get added when there is body data in the request. I have the params set:
// Save the profile
var params: [String: AnyObject] = ["indexPhoto": userProfile.indexPhoto,
"dob": df.stringFromDate(userProfile.dob) as NSString,
"identAs": userProfile.identAs]
// Add manually since creating the dictionary all at once is too much for swift to handle
params.updateValue(String(format:"%.2f", userProfile.heightIn), forKey: "heightIn")
params.updateValue(String(format:"%.2f", userProfile.weightLbs), forKey: "weightLbs")
params.updateValue(userProfile.eyes, forKey: "eyes")
params.updateValue(userProfile.hair, forKey: "hair")
...
Is there something I could be missing with this? Before I upgraded to Alamofire 2.0 this call was working just fine.

Answer 1

Maybe there is a different way but I fixed the same issue by sending empty params instead of nil. I don't use any parameters when using .PUT and because of that server doesn't know how to encode request and response (even if I explicitly set content type inside header, I receive blank content type on the server) so my solution was sending empty params like in the code below. Hope it helps someone.
var url = https://api.mysite.com/v1/issue/369613/delete
let params = ["":""]
let headers = NetworkConnection.addAuthorizationHeader(token, tokenType: tokenType)
manager.request(.PUT, url, parameters: params, encoding: .JSON, headers: headers)
.responseJSON { response in
if let JSONdata = response.result.value {
print("JSONdata: \(JSONdata)")
}
}