How to get access token in instagram api without browser interaction?

Question

Objective-C

To get an access token in instagram I use the following code

NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:[NSString stringWithFormat:@"https://api.instagram.com/oauth/authorize/?client_id=%@&redirect_uri=%@&response_type=token", CLIENT_ID, REDIRECT_URI]]];

CLIENT_ID and REDIRECT_URI are the data given to me by instagram. As a result, I do not receive a token. In order to get it, you need to enter the same thing into the browser, then you will get the access_token=************************* token, but how to get it without interacting with the browser?