Hi
I'm experiencing very odd behavior with NSURLSessionDataTask. It seems that if I POST to an endpoint that has params in the URL, it will always get sent as GET request, even though I am explicitely setting the HTTPMethod of the NSMutableURLRequest to POST. When POSTing to an endpoint that is straight-foward and has no params in its URL (eg. no ?param=value), then NSURLSession will send it off as a POST request.
Has anyone else experienced this behavior?
I tried this and couldn't replicate it. Here's the code I used to create my request:
NSMutableURLRequest * request;
request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"http://biff.local.:12345/foo?param=value"]];
request.HTTPMethod = @"POST";
self.task = [self.session dataTaskWithRequest:request];
assert(self.task != nil);
[self.task resume];The server at
biff.local.POST /foo?param=value HTTP/1.1
Host: biff.local.:12345
Connection: keep-alive
Accept: */*
User-Agent: QTestbed/1.0 CFNetwork/711.4.6 Darwin/14.4.0
Accept-Language: en-us
Content-Length: 0
Accept-Encoding: gzip, deflateI'm building in Xcode 6.4 and running on the iPhone 6 / iOS 8.4 simulator (in my experience the simulator reliably replicates issues like this, so I don't expect this to be a simulator / real device discrepancy).
Please try a simple test with the code shown and let me know what you get.
Share and Enjoy
—
Quinn "The Eskimo!"
Apple Developer Relations, Developer Technical Support, Core OS/Hardware
let myEmail = "eskimo" + "1" + "@apple.com"Thanks, Quinn.
Turns out the server I was POSTing to was sending a 301 redirect back, and so all subsequent queries were GET afterwards!
I just ran into the same problem.
When NSURLSession receives a redirect on a 'POST' request, it replaces the HTTPMethod by 'GET'.
Is this the intended behaviour? I think it is at least not the expected behaviour.
I know I can override the method in `willPerformHTTPRedirection`, but still it feels odd
```
- (void)URLSession:(NSURLSession *)session
task:(NSURLSessionTask *)task
willPerformHTTPRedirection:(NSHTTPURLResponse *)redirectResponse
newRequest:(NSURLRequest *)request
completionHandler:(void (^)(NSURLRequest *))completionHandler {
NSMutableURLRequest *newRequest = request.mutableCopy;
if (redirectResponse) {
newRequest.HTTPMethod = @"POST";
}
completionHandler(newRequest);
}
```
I think it is at least not the expected behaviour.
Clearly it wasn’t expected by you (-:
The behaviour you’re looking for (retrying the
POSTRegardless, the correct solution is to catch the redirect and use app-level logic to determine if the retry is safe.
Share and Enjoy
—
Quinn “The Eskimo!”
Apple Developer Relations, Developer Technical Support, Core OS/Hardware
let myEmail = "eskimo" + "1" + "@apple.com"