Instagress from tech site

I know how to develop bot for apps like instagram.

There are reasons why programming desktop app like massplanner wouldn't be the best for many accounts:
-PC/VPS can easily lose its data stored locally.
-If I want to bot hundreds of accounts on many PCs I am unable to analyze data from all of PCs

So I thought to run web service like instagress, but I don't know how to run infinite, long running,asynchronousoperations with php/phyton. Running java applications from web server costs more.

Do you know how instagress dealt with running HTTP/HTTPS call from webserver?
I know how to send single request, but problem is repeat them and to send them asynchronous.

Massplaner wouldn't be the best for many accounts because simulate 100% human interact with browser embed. This avoids bans. Application that use API or Http requests would call attention, so big accounts would not survive.