What would you recommend reading on the topic of integrating a system into another system?

Question

Programming

Faced at work with a new, unfamiliar and previously unmet task - integrating our systems into another. I would like to understand the general principles of integration, to know some basic things. What are interaction protocols, buses, API.

Answer 1

In this case, you need to study the API of the external system and understand how you can use it from your system. Some extensive knowledge is not needed here.

Answer 2

If you already have your own systems, then you should already know what interaction protocols, buses, API are.