I'm trying to create a formula field wich use an external API in one of my object.
I'm trying to GET the number of followers of an instagram account directly in the formula field.
To do that, I have a little webpage which return the number of followers for an Instagram account that I pass as a parameter:
https://mywebsite.com/getFollowersCount?username=ef and it return
How can I use that in formula (in the object manager) ?