Find Instagram media url by ID

Question

Thanks to a HTTP call not very official, I find media ID, image URL, and user name of Instagram posts.

But I need the URL of each post on Instagram, and I don't know how to find it.

Is there an URL like instagram.com/something/{mediaID} which redirect to instagram.com/p/{mediaSlug}, or another method to find slug by media ID (without using the official API of course!) ?

For example, I've got :

Unique number : 1238578393243739028_1408429375

Media ID : 1238578393243739028

User ID : 1408429375

And I would :

https://www.instagram.com/p/BEwUHyDxGOU/

Thanks for your help !

Answer 1

Java Solution :

public static String getInstagramPostId(String mediaId) {
    String postId = "";
    try {
        long id = Long.parseLong(mediaId.substring(0, mediaId.indexOf('_')));
        String alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_";

        while (id > 0) {
            long remainder = (id % 64);
            id = (id - remainder) / 64;
            postId = alphabet.charAt((int)remainder) + postId;
        }
    } catch (Exception e) {
        e.printStackTrace();
    }

    return postId;
}

Answer 2

This can be helpful:

1) The algorithm to generate URL by yourself http://carrot.is/coding/instagram-ids

2) Also, Instagram has private API endpoint to generate URLs by media_id: https://i.instagram.com/api/v1/media/1212073297261212121_121212123111/permalink/ but it is protected with cookie sessionid