AFNetworking and POST Request - ios

Question

I'm getting this response in error.userInfo while making a POST request from AFNetworking.
Can anyone tell either I'm missing anything obvious or something need to fix at my server end?
Request Failed with Error: Error Domain=AFNetworkingErrorDomain
Code=-1016 "Expected content type {(
"text/json",
"application/json",
"text/javascript" )}, got text/html" UserInfo=0x6d7a730 {NSLocalizedRecoverySuggestion=index test,
AFNetworkingOperationFailingURLResponseErrorKey=, NSErrorFailingURLKey=http://54.245.14.201/,
NSLocalizedDescription=Expected content type {(
"text/json",
"application/json",
"text/javascript" )}, got text/html, AFNetworkingOperationFailingURLRequestErrorKey=http://54.245.14.201/>}, {
AFNetworkingOperationFailingURLRequestErrorKey = "http://54.245.14.201/>";
AFNetworkingOperationFailingURLResponseErrorKey = "";
NSErrorFailingURLKey = "http://54.245.14.201/";
NSLocalizedDescription = "Expected content type {(\n \"text/json\",\n \"application/json\",\n
\"text/javascript\"\n)}, got text/html";
NSLocalizedRecoverySuggestion = "index test"; }
And I'm using this code;
AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:url];
[httpClient registerHTTPOperationClass:[AFJSONRequestOperation class]];
[httpClient setDefaultHeader:#"Accept" value:#"application/json"];
NSDictionary *params = [NSDictionary dictionaryWithObjectsAndKeys:
#"Ans", #"name",
#"29", #"age",
nil];
NSMutableURLRequest *request = [httpClient requestWithMethod:#"POST" path:#"/" parameters:params];
AFJSONRequestOperation *operation = [AFJSONRequestOperation JSONRequestOperationWithRequest:request
success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) {
NSLog(#"Success");
NSLog(#"%#",JSON);
} failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id JSON) {
NSLog(#"Request Failed with Error: %#, %#", error, error.userInfo);
NSLog(#"Failure");
}];
[operation start];
[operation waitUntilFinished];

Answer 1

By default, AFJSONRequestOperation accepts only "text/json", "application/json" or "text/javascript" content-types from server, but you are getting "text/html".
Fixing on server would be better, but you can also add "text/html" content type as acceptable in your app:
[AFJSONRequestOperation addAcceptableContentTypes:[NSSet setWithObject:#"text/html"]];
It worked for me, hope this helps!

Answer 2

Did you send this POST request by AFHTTPClient? If so, you need to set operation class for it:
AFHTTPClient * client = [[AFHTTPClient alloc] initWithBaseURL:[NSURL URLWithString:#"http://localhost:8080"]];
// ...
[client registerHTTPOperationClass:[AFJSONRequestOperation class]];
[client setDefaultHeader:#"Accept" value:#"application/json"];
// ...
// EDIT: Use AFHTTPClient's POST method
NSDictionary *params = [NSDictionary dictionaryWithObjectsAndKeys:
#"Ans", #"name",
#"29", #"age", nil];
// POST, and for GET request, you need to use |-getPath:parameters:success:failure:|
[client postPath:#"/"
parameters:params
success:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(#"RESPONSE: %#", responseObject);
// ...
}
failure:^(AFHTTPRequestOperation *operation, NSError *error) {
if (error)
NSLog(#"%#", [error localizedDescription]);
// ...
}

Answer 3

Set your values in this code and check if it works for you
AFHTTPClient *httpClient = [[AFHTTPClient alloc]initWithBaseURL:[NSURL URLWithString:kBASEURL]];
NSString *_path = [NSString stringWithFormat:#"groups/"];
_path = [_path stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSLog(#"%s %#",__PRETTY_FUNCTION__,_path);
NSMutableURLRequest *request = [httpClient requestWithMethod:#"POST"
path:_path
parameters:postParams];
[httpClient release];
AFJSONRequestOperation *operation = [AFJSONRequestOperation
JSONRequestOperationWithRequest:request
success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) {
if ([JSON isKindOfClass:[NSArray class]] || [JSON isKindOfClass:[NSDictionary class]]) {
completed(JSON);
}
else {
}
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];
}
failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id JSON) {
NSLog(#" response %# \n error %# \n JSON %#",response,error,JSON);
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];
errored(error);
}];
NSOperationQueue *queue = [[[NSOperationQueue alloc] init] autorelease];
[queue addOperation:operation];
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:YES];