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Powerful Tactic to Use Exception Mapper in Dropwizard

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Powerful Tactic to Use Exception Mapper in Dropwizard

When developing RESTful web services, people are often confused with handling exceptions. This post will explain a powerful tactic for using exception mapper with the Dropwizard framework.

· Integration Zone ·
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Dropwizard exception mapper

Problem

When developing RESTful web services, people are often confused with handling exceptions. This post will explain a powerful tactic for using exception mapper with the Dropwizard framework. JAX-RS specification has already introduced exception mappers for handling such a situation in a great way. We will see how this problem was addressed in an effective way by using Dropwizard infrastructure.

How?

Now we will see how we can address this problem by checking out some real code with Dropwizard framework.

There are three steps involved for achieving this:

  1. Introduce a custom exception
  2. Write an exception mapper for our newly introduced exception
  3. Throw the custom exception from our REST API

Custom Exception

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For a detailed code example refer https://github.com/cloudskol/dropwizardskol

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Topics:
jax-rs ,rest api ,rest ,restful web services ,dropwizard ,framework ,api ,restful

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