- [Narrator] Things don't always go as planned…with your code.…Sometimes a client requests a resource that does not exist,…sometimes unauthorized requests are made,…or perhaps an exception is thrown…because there is an issue with the database.…Let's take a look at how errors…and exceptions can be handled.…There are four exception handling approaches…that you can choose from.…Do nothing and let the container take care of the exception.…Catch the exception and respond to the client…with the appropriate configured response object.…Wrap the exception in the web application exception object…and let JAX-RS handle it.…
Or manage the exception by registering an exception manager.…We're going to examine each of the methods…and then decide which is the most appropriate…to implement in the bookshop application.…So, first off, let's examine the option of doing nothing.…An exception that is propagated to the container…is dealt with by the servlet layer…and the status code 500 Internal Server Error…will be returned to the client.…
Join Alex Theedom as he guides you through a wide range of topics, including how to define resource endpoints, how to add dynamism to your application with hypermedia, how to maintain data integrity with Bean Validation, and how to process messages with the JSON Processing API. Once you have completed this course, you'll be ready to develop your own client and server RESTful APIs.
- Discover the extent of JAX-RS's features
- Use the annotation methodology
- Use the inheritance methodology
- Define a REST contract and API root
- Create the REST resource entity
- Create the REST resource methods
- Understand consumers and producers
- Work with different media types
- Define and work with path parameters
- Build a REST response and handle exceptions
- Implement Bean Validation and manage failures
- Create a RESTful client that consumes the web service
- Use JSON-P API with the REST client
- Implement hypermedia (HATEOAS)
Skill Level Intermediate
WebSocket Programming with Java EEwith Alex Theedom1h 29m Intermediate
1. JAX-RS 2.0
2. Introduction to Bookshop Application
3. Create a REST Resource
4. Responses and HATEOAS
5. Bean Validation API
6. Create a REST Client
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