How to subscribe on instagram to users based on email?

Question

Facebook

Instagram has a function to subscribe to contacts that are on the phone (who have an instagram account). How would you put the database of necessary email contacts and subscribe to them? And in the future to advertise targeting these users. Is there a problem solving service?
Similar question on facebook.

Answer 1

Everything can be solved by writing a simple script. Authorization - subscription.
Python \ Pohape will do a great job with this.
If you need a solution from a mobile application, you need to sniff where and what request it sends.
After that, just produce similar ones from a computer and not know the problems.
Yes, you need a service. Well, since I have already written - I will send, why not send it.