NSMutableURLRequest returning JSON with empty sub-arrays - ios

Question

I have created a method that uses NSMutableURLRequest to request and receive JSON from a RESTful API running on a remote machine. The request successfully returns some JSON, but the returned sub-arrays in the JSON (see tasks: []) are empty.
The JSON returned from the API is:
{
"error":false,
"tasks":[
{
"id":1,
"task":"Get Milk",
"status":0,
"createdAt":"2014-08-09 12:29:15"
},
{
"id":2,
"task":"Call Mom",
"status":0,
"createdAt":"2014-08-09 12:46:52"
},
{
"id":3,
"task":"Call Dad",
"status":0,
"createdAt":"2014-08-09 12:47:04"
},
{
"id":4,
"task":"Study",
"status":0,
"createdAt":"2014-08-09 12:47:08"
}
]
}
The method that utilizies NSMutableURLRequest (proper parameters being passed is assumed) is:
-(NSDictionary *) apiRequestWithEndpoint:(NSString *) endpoint
withParams:(NSDictionary *) params
withHTTPHeaders:(NSDictionary *) headers
withHTTPMethod:(NSString *) method
{
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:endpoint]];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
[request setHTTPMethod:method];
//set headers
for (id key in headers) {
[request setValue:[headers valueForKey:key] forHTTPHeaderField:key];
}
//set paramaters in request body
NSMutableString *requestBody = [[NSMutableString alloc] init];
int keyIndex = 0;
for (id key in params) {
if (keyIndex == 0) {
[requestBody appendFormat:#"%#=%#", key, [params valueForKey:key]];
} else {
[requestBody appendFormat:#"&%#=%#", key, [params valueForKey:key]];
}
keyIndex++;
}
[request setHTTPBody:[requestBody dataUsingEncoding:NSUTF8StringEncoding]];
NSURLResponse *response;
NSError *NSURLError = nil;
NSData *data = [NSURLConnection sendSynchronousRequest:request
returningResponse:&response
error:&NSURLError];
if (NSURLError) {
NSLog(#"Error: %# Cancelling operation.", NSURLError);
return nil;
}
NSError *NSJSONSerializationError = nil;
NSDictionary *responseJSON = [NSJSONSerialization JSONObjectWithData:data
options:kNilOptions
error:&NSJSONSerializationError];
if (NSJSONSerializationError) {
NSLog(#"Error: %# Cancelling operation.", NSJSONSerializationError);
return nil;
}
NSLog(#"Data: %#",[[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]);
return responseJSON;
}
Notice the 4th last line that logs the returned NSData from the NSMutableURLRequest, the output is:
Data: {"error":false "tasks":[]}
The code that calls the above method:
NSString *getAllTasksEndpoint = #"http://developmentVPS.com/TaskList-API/v1/tasks";
NSString *apiKey = #"A Valid API Key";
NSDictionary *headers = [[NSDictionary alloc] initWithObjectsAndKeys:apiKey, #"Authorization", nil];
NSDictionary *responseJSON = [self apiRequestWithEndpoint:getAllTasksEndpoint
withParams:nil
withHTTPHeaders:headers
withHTTPMethod:#"GET"];
It is my understanding that the entire data returned from the request should be logged in that NSLog call, but "tasks" is empty. I am new to iOS development, so I may be missing something simple. Does anybody see anything I am missing here?