POST request with JSON body AFNetworking 2.0 - ios

Question

Is there anyway to send a POST request with a JSON body using AFNetworking ~> 2.0?
I have tried using:
manager.requestSerializer = [AFJSONRequestSerializer serializer];
manager POST:<url> parameters: #{#"data":#"value"} success: <block> failure: <block>'
but it doesn't work. Any help is greatly appreciated.
Thanks

Answer 1

You can add your JSON body in NSMutableURLRequest not direct in parameters:. See my sample code :
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
// Set post method
[request setHTTPMethod:#"POST"];
// Set header to accept JSON request
[request setValue:#"application/json" forHTTPHeaderField:#"Content-Type"];
// Your params
NSDictionary *params = #{#"data":#"value"};
// Change your 'params' dictionary to JSON string to set it into HTTP
// body. Dictionary type will be not understanding by request.
NSString *jsonString = [self getJSONStringWithDictionary:params];
// And finally, add it to HTTP body and job done.
[request setHTTPBody:[jsonString dataUsingEncoding:NSUTF8StringEncoding]];
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
manager.requestSerializer = [AFJSONRequestSerializer serializer];
AFHTTPRequestOperation *operation = [manager HTTPRequestOperationWithRequest:request success:<block> failure:<block>];
Hope this will help you. Happy coding! :)

Answer 2

If someone looking for AFNetworking 3.0, here is code
NSError *writeError = nil;
NSData* jsonData = [NSJSONSerialization dataWithJSONObject:params options:NSJSONWritingPrettyPrinted error:&writeError];
NSString* jsonString = [[NSString alloc]initWithData:jsonData encoding:NSUTF8StringEncoding];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:url] cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:120];
[request setHTTPMethod:#"POST"];
[request setValue: #"application/json; encoding=utf-8" forHTTPHeaderField:#"Content-Type"];
[request setValue: #"application/json" forHTTPHeaderField:#"Accept"];
[request setHTTPBody: [jsonString dataUsingEncoding:NSUTF8StringEncoding]];
AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];
[[manager dataTaskWithRequest:request uploadProgress:nil downloadProgress:nil completionHandler:^(NSURLResponse * _Nonnull response, id _Nullable responseObject, NSError * _Nullable error) {
if (!error) {
NSLog(#"Reply JSON: %#", responseObject);
if ([responseObject isKindOfClass:[NSDictionary class]]) {
//blah blah
}
} else {
NSLog(#"Error: %#", error);
NSLog(#"Response: %#",response);
NSLog(#"Response Object: %#",responseObject);
}
}] resume];