HTTP Problem Details 4 for Java

Writing helpful error responses for HTTP and REST based APIs is still a challenge. The aim of this library to provide a ready to use Java implementation of RFC 9457 Problem Details for HTTP APIs with support for various frameworks or for direct usage without any framework to support API implementors in providing better APIs.

Primary Objective

Provide an easy-to-use Java library to ease the adaption of RFC 9457: Problem Details for HTTP APIs for Java based applications, which is also easy to adapt to application specific requirements.

Secondary objectives

• Provide Useful documentation to ease the usage of the library and to support its quick adaption

• Use Minimal dependencies to other libraries to avoid the dependency hell we often suffer from

• Ensure a high test coverage to protect users from implementation errors

Things, you should have read

The following sources provide a good introduction to the topic and also serve as a usage reference:

• RFC 9457 - Problem Details for HTTP APIs

• RFC 7807 - Problem Details for HTTP APIs (obsoleted predecessor)

• Charge your APIs Volume 19: Understanding Problem Details for HTTP APIs - A Deep Dive into RFC 7807 and RFC 9457