What is the best way to implement the idea: synchronization of the site with a large amount of 1C data from different companies?

Question

API

How can you synchronize a site with a large number of 1C different companies?
It is necessary that certain 1C data from different companies (of which there are a large number) are synchronized with the site in real-time.
Is it better to do it via API? Or are there some other ways?
What is the best way to implement this idea?
Will there be any problems updating data in real time? (I heard that 1C updates data with difficulty, maybe for some other reason)

Answer 1

You write services on the site. From 1c, these services are periodically accessed. The site can also take data from 1C through the Rest interface.