Browse Learn Clojure Foundations as a Java Developer

Implementing the Clojure Backend

Build handlers, validation, and persistence around a pure domain core that is easy to test.

Implementing the Clojure Backend orients the full-stack project work around boundaries Java engineers need to review explicitly. Use these lessons to keep domain logic, adapters, persistence, UI integration, tests, and operational concerns separated rather than hidden inside framework wiring.

Read the child pages as implementation checkpoints for a project you could build, test, deploy, and evolve with a mixed Java and Clojure team.

In this section

  • Setting Up a Clojure Web Server
    Learn how to set up a web server in Clojure using frameworks like Ring and Pedestal. This guide covers defining the application's entry point, configuring the server, and implementing middleware for logging, session management, and security.
  • Defining Routes and Handlers in Clojure
    Learn how to define routes and handlers in Clojure using Compojure and Pedestal, with practical examples and best practices for building robust APIs.
  • Data Persistence and Database Operations in Clojure
    Explore data persistence and database operations in Clojure, focusing on establishing connections, configuring connection pooling, and performing CRUD operations with security considerations.
  • Implementing Business Logic in Clojure
    Learn how to implement business logic in Clojure, focusing on separation of concerns, data validation, and error handling, with practical examples for Java developers.
  • Securing a Clojure API
    Learn how to secure your Clojure API with authentication and authorization mechanisms, including JWT, session-based authentication, and OAuth integration. Explore middleware for enforcing security policies and best practices for encrypting sensitive data.
Revised on Saturday, May 23, 2026