I want to implement functionality that allows users on my app to find their friends by looking up their contacts list. Their phone contacts might be 1000 people, or even more. I know I can query the management API with an HTTP request, but can I do all of that in a single request? The maximum URL length is 2048 characters, so there’s no way I can fit all the contact phone numbers in the query parameter.
All of my users sign up through SMS, so I know how to make the query when there is a small number of contacts, but I’m not sure how to do it with many.