# Create an Entando Platform Capability
An Entando Platform Capability, or EPC, is a packaged capability in the form of a bundle that adds functionality to the platform with additional UX controls. An EPC simplifies the addition of menu options, an API management page, or WCMS integration like Strapi, all from the App Builder. This tutorial demonstrates how to build a simple EPC from a React micro frontend bundle.
# Prerequisites
- A working instance of Entando
- An existing React MFE
# Create a Simple EPC
Working with the React MFE Tutorial, the following steps convert the React bundle into an EPC by modifying the bundle descriptor and customizing the public path to serve static assets.
# Configure the Bundle Descriptor
Edit the bundle descriptor entando.json in the root bundle directory.
- Change the
typetoapp-builder:
"type": "app-builder"
Remove the
titlesattributeAdd the fields in the code snippet below:
"slot": "content",
"paths": ["/YOUR-MFE-NAME"],
"nav": [
{
"label": {
"en": "YOUR EPC LABEL IN ENGLISH",
"it": "YOUR EPC LABEL IN ITALIAN"
},
"target": "internal",
"url": "/YOUR-MFE-NAME"
}
],
type: Useapp-builderfor an EPCslot: Placement of the EPC on a pagepaths: The URL path to the EPC in the App Builder. An external URL can be enterednav: The visible label for the navigation item in the App Builder Menu
For more details on attributes, see the Bundle Details page.
Note: To continue with the same name as the React bundle, update the version number in the bundle descriptor entando.json. Otherwise, change the bundle name to avoid name conflicts in your Local Hub.
# Optional: Configure the Custom Element Paths
If you have static assets such as images or PDFs in your MFE, modify the public-path.js file in the microfrontends/YOUR-MFE-NAME/src/custom-elements directory.
Retrieve the bundle ID using your information for the fields in all-caps:
ent ecr get-bundle-id https://registry.hub.docker.com/YOUR-DOCKER-ORGANIZATION/YOUR-BUNDLE-NAMEYOUR-BUNDLE-IDwill be an 8-digit string of numbers and letters.Determine the bundle and widget codes. The CODE is simply the name followed by a dash and
YOUR-BUNDLE-ID.YOUR-BUNDLE-CODE:
YOUR-BUNDLE-NAME-YOUR-BUNDLE-ID
YOUR-WIDGET-CODE:YOUR-WIDGET-NAME-YOUR-BUNDLE-IDe.g. With a bundle named
bundleOne, a widget namedmfeTwo, and bundle ID of4986eb9c: YOUR-BUNDLE-CODE:bundleOne-4986eb9c
YOUR-WIDGET-CODE:mfeTwo-4986eb9cUsing your CODEs, replace the contents of
public-path.jswith the following:
if (process.env.NODE_ENV === 'production') {
let publicpath = '/entando-de-app/cmsresources/bundles/YOUR-BUNDLE-CODE/widgets/YOUR-WIDGET-CODE/'
// eslint-disable-next-line no-undef
__webpack_public_path__ = publicpath || './';
}
e.g. for the example from Step 2:
publicpath = '/entando-de-app/cmsresources/bundles/bundleOne-4986eb9c/widgets/mfeTwo-4986eb9c/'
# Build and Install the EPC
From the root directory, build and install the bundle:
ent bundle packent bundle publishent bundle deployent bundle installLog in to your App Builder to see the new EPC:
- Go to
EPCfrom the left menu and chooseUncategorized - Click on your EPC
label
You should see the spinning React logo inside the App Builder.
- Go to
Congratulations!
You now have an EPC running on Entando!
Next Steps
- Learn how to utilize Entando MFE Context Parameters to extend your micro frontends.
- Use Plugin Environment Variables to Customize Microservices