SPRING CONCEPTS
Postman
Spring Concepts / Postman
Postman sends HTTP requests and checks API responses.
Understand the idea
Collections group requests, scripts, and assertions. Environment variables keep values such as the base URL and token reusable. The supplied collections save generated ids and tokens so later requests can refer to them.
A concrete example
{{baseUrl}}/api/todos/{{todoId}}In the application
The REST collection verifies CRUD and validation. The personal collection proves Alice/Bob isolation and token failures.
Run collection requests in their numbered order and select the matching environment. Postman does not connect directly to Atlas in this course.