Java EE 7 / JAX-RS 2.0: Simple REST API Authentication & Authorization with Custom HTTP Header–reference

• Java

REST has made a lot of conveniences when it comes to implementing web services with the already available HTTP protocol at its disposal. By just firing GET,POST and other HTTP methods through the designated URL,you’ll sure to get something done through a response out of a REST service. But whatever conveniences which REST has given to the developers,the subject of security and access control should always be addressed. This article will show you how to implement simple user based authentication with the use of HTTP Headers and JAX-RS 2.0 interceptors.

Authenticator

Let’s begin with an authenticator class. This DemoAuthenticator with the codes below provides the necessary methods for authenticating any users which is request access to the REST web service. Please read through the codes and the comments are there to guide the understanding.

Codes for DemoAuthenticator:

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