API is an Application Programming Interface. It is used to establish communication and data exchange between two software systems. A software system implementing an API consists of various functions and sub-routines which can be executed by another software system.
In API Testing, you use software to send calls to the API, get output, and note down the system's response.
API Architecture: API calls collection includes mainly two things:
1. HTTP headers: HTTP headers are always dependent on your application.
2. HTTP Request: There are mainly four types of requests.
What is Postman?
Postman is used to fire requests to an API. It is available as add-in on Chrome and also available for Mac application. It is very fast in response and also light weight which puts no impact on browser performance...
Read more, Test automation using Postman
