HTTP request with body using PATCH in Swift
I am trying to send a Patch request with a serialized JSON body.
For some reason, the server cannot accept the body correctly. I have a feeling that there seems to be a problem with the PATCH method combined with the HTTP request body.
let sessionConfig = NSURLSessionConfiguration.defaultSessionConfiguration()
let session = NSURLSession(configuration: sessionConfig, delegate: nil, delegateQueue: nil)
var URL = B2MFetcher.urlForBooking(event.unique, bookingID: booking.unique)
let request = NSMutableURLRequest(URL: URL)
request.HTTPMethod = "PATCH"
// Headers
println(token)
request.addValue(token, forHTTPHeaderField: "Authorization")
request.addValue("gzip, identity", forHTTPHeaderField: "Accept-Encoding")
// JSON Body
let bodyObject = [
"op": "cancel"
]
var jsonError: NSError?
request.HTTPBody = NSJSONSerialization.dataWithJSONObject(bodyObject, options: nil, error: &jsonError)
/* Start a new Task */
let task = session.dataTaskWithRequest(request, completionHandler: { (data : NSData!, response : NSURLResponse!, error : NSError!) -> Void in
completion(data: data, response:response , error: error)
})
task.resume()
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2 answers
You can try to add the Content-Type header to the request:
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
or use one of the other JSON content formats described here .
I tested it with ExpressJS server and without the Content-Type header the server got an empty body, but it worked well with the Content-Type header.
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in fast 3/4:
let request = NSMutableURLRequest(url: NSURL(string: "http://XXX/xx/xxx/xx")! as URL)
request.httpMethod = "PATCH"
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
do{
let json: [String: Any] = ["status": "test"]
let jsonData = try? JSONSerialization.data(withJSONObject: json)
request.httpBody = jsonData
print("jsonData: ", String(data: request.httpBody!, encoding: .utf8) ?? "no body data")
} catch {
print("ERROR")
}
let task = URLSession.shared.dataTask(with: request as URLRequest) {
data, response, error in
if error != nil {
print("error=\(error)")
completion(false)
return
}
let responseString = NSString(data: data!, encoding: String.Encoding.utf8.rawValue)
print("responseString = \(responseString)")
completion(true)
return
}
task.resume()
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