AFNetworking 2.0 POST Issue - objective-c

Question

I am in the process of switching over some of my code from AFNetworking 1.0 to 2.0.
Before when doing a POST, I was creating an AFHTTPClient, and an AFHTTPRequestOperation like so:
AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:reqUrl];
[httpClient setParameterEncoding:AFJSONParameterEncoding];
httpClient.operationQueue.maxConcurrentOperationCount = 1;
NSDictionary *params = [NSDictionary dictionaryWithObjectsAndKeys:
req.viewName, #"viewName",
req.json, #"JSON",
req.dateAdded.description, #"dateTime",
req.latitude, #"latitude",
req.longitude, #"longitude",
req.heading, #"heading",
req.user, #"requestUser",
nil];
AFHTTPRequestOperation *op = [[AFHTTPRequestOperation alloc] initWithRequest:request];
[httpClient registerHTTPOperationClass:[AFHTTPRequestOperation class]];
[op setCompletionBlockWithSuccess:
^(AFHTTPRequestOperation *operation,
id responseObject) {
.......convert responseObject (string) to NSDictionary.....
});
This worked fine, and my POSTs went through and I received a successful text response from the server. (which I then converted to a NSDictionary)
I now am using an AFHTTPSessionManager singleton, and calling the POST method from that. When initializing my AFHTTPSessionManager, I am doing the following:
AFHTTPResponseSerializer *responseSerializer = [AFHTTPResponseSerializer serializer];
[self setResponseSerializer:responseSerializer];
self.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:#"text/html", nil];
Then in my other class, I am calling the POST like so:
NSDictionary *params = #{
#"viewName":req.viewName,
#"JSON":req.json,
#"dateTime":req.dateAdded.description,
#"latitude":req.latitude,
#"longitude":req.longitude,
#"heading":req.heading,
#"requestUser":req.user
};
[netManager POST:path parameters:params success:^(NSURLSessionDataTask *task, id responseObject) {
.....
} failure:^(NSURLSessionDataTask *task, NSError *error) {
//failing here
});
My data has not changed at all, but the POSTs always fail with the error:
Error Domain=AFNetworkingErrorDomain Code=-1011 "Request failed: bad request (400)" UserInfo=0x1704675c0 {AFNetworkingOperationFailingURLResponseErrorKey=<NSHTTPURLResponse: 0x178234660> { URL: ... } { status code: 400, headers {
"Content-Length" = 2738;
"Content-Type" = "text/html";
Date = "Thu, 15 May 2014 16:13:51 GMT";
Server = "Microsoft-IIS/7.0";
"X-Powered-By" = "ASP.NET";
Whats different that is causing the new AFNetworking 2.0 POST code to not work with this now? Is there anything I need to be setting? The URL and Parameters I am passing are the same as they were with the old way I was sending the POST.
Thanks

Answer 1

My solution ended up being a pretty simple one
In my AFHTTPSessionManager's init, I was not setting the RequestSerializer along with the ResponseSerializer.
After setting it correctly, my POSTs are going through fine again. Heres what I set:
[self setResponseSerializer:[AFJSONResponseSerializer serializer]];
self.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:#"application/json", nil];
[self setRequestSerializer:[AFJSONRequestSerializer serializer]];
EDIT
Aaron Brager stated that those first 2 lines are defaults and not needed. All I needed was to set the RequestSerializer. I tested and can verify this.