This video in a nutshell explains API (What, Why, How) and is only an overview on API. The core reason to create the video was to explore 'Microservices' and this video marks the start of my journey into REST API building and Usage.
It talks about the differences between REST and SOAP APIs. REST API is more in vogue due to cloud computing, favouring scalability and the ease of use. Some basic commands used are
GET
POST
PUT
DELETE
AUTH