Developer Guides

Topic	Replies	Views	Activity
Developer Guides Index index Documentation about extending Discourse with plugins, themes, and theme components, working with the core code, and using the Discourse API. Introduction Introduction: Introduction to Discourse Development Development…	0	2216	May 15, 2024
Bundle splitting for plugins	0	29	September 8, 2026
Using Transformers to customize client-side values and behavior	2	742	September 5, 2026
Discourse toolkit to render forms	28	1813	December 23, 2025
The UI kit of shared Discourse components, helpers, and modifiers	0	86	August 31, 2026
Theme Developer Tutorial: 7. Wrapping up	0	358	March 18, 2025
Drag, resize, and gesture primitives	0	96	August 20, 2026
Designing for Responsive Widths (Breakpoints, Viewport & Containers)	0	103	August 4, 2026
Designing for Different Devices (Touch & Hover)	14	1169	January 25, 2026
JavaScript type hinting & validation (typescript)	0	217	February 4, 2026
Guidelines for CSS classes using BEM	0	366	April 15, 2025
Customizing the topic list	0	837	February 4, 2025
AppEvents Triggers Reference	0	542	November 26, 2024
Write end-to-end system specs for the Discourse user interface	3	714	August 28, 2025
Using service objects in Discourse	0	906	October 30, 2024
(not recommended) Overriding Discourse templates from a Theme or Plugin how-to	9	2889	March 7, 2024
Preventing accidental serialization of ActiveRecord models reference	2	523	July 23, 2024
Adding a new 'managed' authentication method to Discourse explanation	2	3785	November 29, 2023
Creating Routes in Discourse and Showing Data ember , tutorial	0	11898	August 18, 2016
Using modifyClass to change core behavior	6	2544	March 4, 2026
Using Plugin Outlet Connectors from a Theme or Plugin how-to , code	12	19048	October 14, 2024
Using the JS API plugin-api , explanation , code	18	12412	January 30, 2026
Using the DModal API to render Modal windows (aka popups/dialogs) in Discourse code	0	2218	July 3, 2023
Converting modals from legacy controllers to new DModal component API code	9	5460	November 7, 2023
Developer's guide to Markdown extensions markdown , reference , code	1	13694	June 1, 2026
Setup Continuous Integration using GitHub Actions how-to , code	8	1672	March 3, 2025
Using Google's 'tachometer' to measure JS performance changes in Discourse code	0	1060	October 5, 2023
Ember object ownership (getOwner, service injections, etc.) code	0	1507	January 19, 2024
Pinning plugin and theme versions for older Discourse installs (d-compat branches)	6	1592	July 17, 2026
How to run Discourse core, plugin and theme QUnit test suites how-to , code	0	2850	July 26, 2017

Developer Guides Index

index

Documentation about extending Discourse with plugins, themes, and theme components, working with the core code, and using the Discourse API. Introduction Introduction: Introduction to Discourse Development Development…