about using the Instagram API to develop sharing capabilities

Application page for ClientID and key, etc.: https://instagram.com/developer/mobile-sharing/

In the middle of the redirect address selection, in fact, should be filled out as a local address. That is, when the http://localhost is filled out as the local address, then the Instagram server will directly send the privacy data to the local machine, ensuring security.

See also: Http://jelled.com/instagram/access-token

Need to cancel disable implicit tick when creating ClientID

Go to Manage clients under Instagram/developer. Then Click Edit under your app and uncheck Disable Implicit. It'll now work as intended.

Additional SDK OBJC Download address: https://github.com/shyambhat/InstagramKit