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Hydrogen duct template
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Build Status Clojars Project

An external profile for Duct template that introduces Hydrogen code.


This template profile needs to be used in conjunction with +site and +cljs hints.

lein new duct <project name> +site +cljs +hydrogen/core

It creates an SPA app that's ready for you to run. Front to back. It comes packed with some of the features we use in most of our projects:

Additional profiles

Authentication and session management

Hydrogen also offers two profiles that provide session management using OpenID Connect ID Tokens. To use them simply add:

  • +hydrogen/session.cognito for AWS Cognito User Pools-based session management or
  • +hydrogen/session.keycloak to add Keycloak-based session management.

Keep in mind that those two profiles are mutually exclusive.

SQL persistence boundary

Hydrogen also offers a profile that provides a boundary (based on Clojure protocols and records) for data persistence using SQL databases. By default it uses Postgresql (by adding its JDBC driver as a dependency), but can be used with any JDBC compatible database as long as you add its driver as a dependency. To use it simply add:

  • +hydrogen/persistence.sql to the list of required profiles

What else can it do?

In order to be able to finally share our toolset with the community, we had to cut some corners and narrow down the scope of the template's content. However we'll be delighted to highlight some of our libs, gists and blog posts with our know-how:

Future work

For the list of our features to come please take a look at this project's issues list.


Copyright (c) 2018, 2019 Magnet S Coop.

The source code for the library is subject to the terms of the Mozilla Public License, v. 2.0. If a copy of the MPL was not distributed with this file, You can obtain one at

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