发送签名请求

Question

我试图发送签名请求。我有名字和密码，但我不知道在代码中把它放在哪里

NSURL *url = [NSURL URLWithString:@"http://ec2-54-200-2-249.us-west-2.compute.amazonaws.com/signin"];

NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:10];

[request setHTTPMethod:@"Get"];