OpenMRS 3.0 Micro Frontend Demo Page

How to Contribute

1. Check the Developer's Guide: Use our Developer's Guide to get started. Look for answers there. 
    If you are still unsure about a question, double check the short videos in the Dev Tutorials, and make sure you're familiar with the MF Tooling tutorial  and the MF Extensions Tutorial. If you are still stuck after double-checking the Dev Guide for answers, ask our squad in the #microfrontends.
2. Introduce Yourself: Come say hello on our Slack channel (listed above).
3. Find Intro Tickets: Intro tickets you can use to start contributing are available here: 
   This dashboard shows the latest Intro and Non-Intro tickets that need to be taken on to support the MicroFrontend work. This also shows the different features (via Epics) that are currently underway. 
   1. Note: To view the designs in detail, you'll need an invite to our Zeplin account. Ask Grace Potma& Eric Achillah for help - @grace & @Eric on Slack. Make sure you also review our short How to Use Zeplin video.
   2. Please assign tickets to yourself before starting work. This helps avoid confusion and accidental duplication of work. Double-check the ticket's Epic for other related work before working on things outside the described scope of the ticket - you may accidentally be replicating a feature someone else is already working on.
   3. Please only take 1-2 tickets at a time. This helps you to focus on getting 1-2 things done at a time. If you assign yourself to multiple tickets, this prevents others from working on them, so please be considerate of others and only pick up 1-2 tasks at a time. When those are done, you can assign yourself another 1-2 other tasks. If you have submitted your PR for 2 tickets and are still waiting for feedback, it is okay to pick up another ticket, so long as you promptly respond to the feedback on your original tickets so that work can be merged promptly.
4. Meet Us! Come to a weekly squad call to learn more about what we do and get hands-on experience.
5. Sprints: Become part of our regular sprints. This will happen naturally as you join our calls, though you don't need to join all calls in order to participate. Here is our active board. We use epics to break down features and widgets, and we typically work in 3-week sprints. 

More Information

What are Microfrontends? Microfrontends are in-browser javascript modules (ESMs) that provide application UI. They make it possible to have extensible, configurable and independently deployable frontend features. It means you can get your frontend live and updated fast. 

Our MF Framework is Single-SPA: We chose to use single-spa, the most popular microfrontends framework, as the basis upon which to build this new frontend architecture.

Our MF Tech Stack: Primarily React, HTML and CSS, but it's not unfeasible that one could choose to develop in a JavaScript framework of their choosing - that's the whole premise behind microfrontends after all.

Repositories You Should Know About

Frontend 3.0 uses a framework called esm-framework, which is housed in openmrs-esm-core, along with the app shell and tooling. Distributions will use these core modules and package a number of Microfrontends which are built on them. The reference application is made up of all the microfrontends found in the following repositories:

• openmrs-esm-core: Microfrontends which are administrative or else integral to the application
• openmrs-esm-patient-management: Microfrontends which deal with creating, searching, and listing patients
• openmrs-esm-patient-chart: The patient chart microfrontend and all its widgets
• openmrs-esm-home: Microfrontends tied to the home page

Special mention for openmrs-rfc-frontend which is a git repo that facilitates a democratic process where folks can propose changes to the frontend implementation via RFCs (Request For Comments). Please read, for example, the Contributing Guidelines for Microfrontends, which were established with RFC #20.