I wrote this tutorial to fill a void that I have noticed. Building web applications is a top priority for people learning backend development, but I haven’t seen any Java or Spring Boot tutorials that is friendly for beginners. Most tutorials are either too trivial (Hello World API) to help you understand what you need to know; or they are overwhelming and assume too much about what you already know!
The second part of the tutorial covers testing this web service. The corresponding code is contained in the "with-tests" branch, the code differs slightly from the "master" branch, and includes the unit tests discussed.
You’ll build a web service that can create, read, update, and delete users.
The default local address for your Spring Boot application will be: http://localhost:8080, so the address to get all users would be http://localhost:8080/users for example.
We will create the following actions:
| HTTP Method | Address | Action |
|---|---|---|
| GET | /users | Get all users |
| GET | /users/{id} | Get users by id |
| GET | /users?name=rob+oleary | Get user by name |
| POST | /users | Add a new user |
| PUT | /users | Update a user |
| DELETE | /users/{id} | Delete a user |
The tutorial outlines prerequisites and provides a step-by-step guide to building the web serivce.
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