FSURLOperation Example

gistfile1.m

NSURLRequest* req= [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://fsdev.net"]];

__block NSData* mySite= nil;

FSURLOperation* oper= [FSURLOperation URLOperationWithRequest:req completionBlock:^(NSHTTPURLResponse* resp, NSData* payload, NSError* asplosion) {
  mySite = payload;
}];

NSBlockOperation* onFinish= [NSBlockOperation blockOperationWithBlock:^{
  NSMutableURLRequest* spamReq= [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"http://www.fsdev.net/"]];

  [spamReq setHTTPBody:mySite];

  FSURLOperation* spamOper= [FSURLOperation URLOperationWithRequest:req completionBlock:^(NSHTTPResponse* resp, NSData* payload, NSError* asplosion) {
    NSLog(@"%@", [payload fs_stringValue]);
  }];

  [[NSOperationQueue mainQueue] addOperation:spamOper];
}];

[onFinish addDependency:oper];

[[NSOperationQueue mainQueue] addOperations:[NSArray arrayWithObjects:onFinish, oper, nil]
                              waitUntilDone:NO];