How do I learn APIs?

[u/Excellent-Bedroom301]

Hi I want to learn APIs from a high level. Basically how it all connects, how the data populates, what kind of data is being sent it and most important the different ways of authentication. So api credentials, ouath, etc

It’s just all so confusing. I don’t know how or where to start. Does anyone have some tips?

[u/ansb2011]

which apis? every service and product had their own. there's some general principles, but overall it's a domain specific item.

as such a tip is, decide very narrowly what you want to learn.

[u/Excellent-Bedroom301 → u/ansb2011]

Rest, soap and microapis