Delve into creating REST APIs with Spring Framework, integrating databases with JPA, implementing Aspect-Oriented Programming, unit testing, and documenting with Springfox, and monitoring with Spring Boot Actuator.

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In this advanced-level course, you’ll learn to create REST APIs using the Spring Framework. The course gives a detailed experience in designing, implementing, and documenting REST APIs with end-to-end features like database integration and monitoring.

Firstly, you'll set up a Spring Boot project and create fully-functional REST APIs to manage your to-do lists. Secondly, you’ll learn database integration using Spring Data JPA and consume APIs using various tools such as cURL, Postman, and the Swagger UI. Thirdly, you'll learn Aspect-Oriented Programming (AOP) in Spring and Unit test the APIs using Spring Framework. Lastly, you’ll learn to document APIs using Springfox and Spring REST Docs and monitor them using the Spring Boot Actuator. 

By the end of this course, you'll be confident to design, implement, and document REST APIs end-to-end using the Spring Framework, including advanced topics like AOP, Unit Testing, and Monitoring.

REST APIs with Spring, JPA, and Springfox

We've seen a few POST and PUT requests to the REST API endpoints with the JSON request body.

For example, look at the already discussed POST request to create the `TodoType` object.

curl --location --request POST 'http://localhost:8080/api/todoType/' \
--header 'Content-Type: application/json' \
--data '{"code": "PERSONAL","description": "Todo for Personal Work"}'

In this request, the value of the `Content-Type` header is `application/json`. So, the application looks for the `data` in the request body and deserializes it considering JSON.

Similarly, we can set the `Content-type` header as `application/xml` for the XML request body. However, the response will result in a #key# 415: HttpStatus.UNSUPPORTED_MEDIA_TYPE #key# status because, like JSON, XML is not explicitly supported.

Let’s learn to use JSON/XML in the request and response of the REST APIs.

Introduction to Spring Boot

Develop REST APIs

Database Integration With Spring Data JPA

REST APIs With Spring Data REST

Aspect Oriented Programming

Spring Framework Testing

Consuming APIs

API Documentation With Swagger

API Documentation Using Spring REST Docs

Spring Boot Actuator

Wrapping Up

REST APIs Request and Response

REST API Request

The `Content-Type` header

REST APIs Request and Response

REST API Request

The Content-Type header

The `Content-Type` header