Can I make the request faster? (facebook graph api) - iphone

Question

I made below code for getting my friends' information having the opposite sex.
First, I sent the request for getting all friends' IDs. and I sent the requests again for getting the friend's information (name, photo, and so on).
but I have 350 friends and I sent 350 requests. It is really slow about taking 1 minute.
Can I make the process faster?
- (void)request:(FBRequest *)request didLoad:(id)result
{
if (request == requestFriends) {
NSMutableArray *tempKeys = [NSMutableArray array];
for (NSDictionary *dic in [result objectForKey:#"data"]) {
[tempKeys addObject:[dic objectForKey:#"id"]];
}
NSMutableDictionary *params = [NSMutableDictionary dictionary];
if ([self.myGender isEqualToString:#"male"]) {
params = [NSMutableDictionary dictionaryWithObjectsAndKeys:#"id,name,gender,age,location", #"field", nil];
} else if ([self.myGender isEqualToString:#"female"]) {
params =[NSMutableDictionary dictionaryWithObjectsAndKeys:#"id,name,age,gender,work,school", #"field", nil];
}
for (NSString *key in tempKeys) {
[requestArray addObject: [delegate.facebook requestWithGraphPath:key andParams:params andDelegate:self]];
}
i = tempKeys.count;
} else if (request == self.myPicRequest) { //고화질 프로필 사진 받아오는 부분
NSArray *arr = [result objectForKey:#"data"];
for (NSDictionary *result in arr) {
if([[result objectForKey:#"type"]isEqualToString:#"profile"]) {
profileRequest = [delegate.facebook requestWithGraphPath:[result objectForKey:#"cover_photo"] andDelegate:self]; //프로필의 아이디로 다시 리퀘스트
}
}
} else if (request == self.profileRequest) {
NSURL *url = [NSURL URLWithString:[[[result objectForKey:#"images"] objectAtIndex:3] objectForKey:#"source"]];
UIImage *image = [UIImage imageWithData:[NSData dataWithContentsOfURL:url]];
CGRect rect = CGRectMake(0, 60, 360, 360); //중간부분을 크롭
[self.candidatePicArray addObject:[self imageByCropping:image toRect:rect]];
NSLog(#"이미지들어간다");
} else {
for (FBRequest *req in requestArray) {
if (request == req) {
if (![[result objectForKey:#"gender"]isEqual:myGender]) {
[candidateIdArray addObject:[result objectForKey:#"id"]];
[candidateNameArray addObject:[result objectForKey:#"name"]];
myPicRequest = [delegate.facebook requestWithGraphPath:[NSString stringWithFormat:#"%#/albums", [result objectForKey:#"id"]] andDelegate:self];
if ([result objectForKey:#"birth"]) {
[candidateAgeArray addObject:[result objectForKey:#"birth"]];
}
if ([result objectForKey:#"Location"]) {
[candidateLocationArray addObject:[[result objectForKey:#"Location"] objectForKey:#"name"]];
}
if ([[result objectForKey:#"work"] objectAtIndex:0]) {
[candidateWorkArray addObject:[[[[result objectForKey:#"work"] objectAtIndex:0] objectForKey:#"employer"] objectForKey:#"name"]];
}
NSLog(#"girl!");
}
j++;
// NSLog(#"candidateNameArray : %#", [result objectForKey:#"name"]);
}
}
}
NSLog(#"i = %d, j = %d", i , j);
[progressView setProgress:(float)(j/i) animated:YES];
if(i == j) {
[self performSegueWithIdentifier:#"SEGUE_START" sender:nil];
}
}

Answer 1

There are some clues on batching requests in this other question on SO:
Batch calls with Facebook Graph API & PHP
Though it uses php you might get some clues.

Answer 2

You don't have to send a request for every friend, you can do it all at once.
Try making the request like:
https://graph.facebook.com?ids=iduser1,iduser2,iduser3,iduser4&fields=email,gender,age,name
This way is a lot faster.
Regards