Auro Formkit
Description
auro-formkit
is a collection of web components that can be used to build forms.
It is a monorepo that contains the following components:
auro-checkbox
auro-combobox
auro-counter
auro-datepicker
auro-dropdown
auro-form
auro-input
auro-menu
auro-radio
auro-select
Install

$ npm i @aurodesignsystem/auro-formkit
Installing as a direct, dev or peer dependency is up to the user installing the package. If you are unsure as to what type of dependency you should use, consider reading this stack overflow answer.
Getting Started
To start using the Auro Formkit components, follow the instructions below:
Usage
You can use Auro Formkit components in your project in two ways: automatic or custom registration.
Automatic Registration
For automatic registration, simply import the component:
import "@aurodesignsystem/auro-formkit/auro-checkbox";
This will automatically register both the <auro-checkbox>
and the included <auro-checkbox-group>
component for use in your project. Note that not all Auro Formkit components have sub-components. Be sure to check the documentation for each component to understand its specific usage and registration requirements.
Custom Registration
If you prefer to register the component with a custom name, you can call the component class directly to create a custom registration:
import { AuroCheckbox, AuroCheckboxGroup } from "@aurodesignsystem/auro-formkit/auro-checkbox/class";
AuroCheckbox.register('custom-checkbox');
AuroCheckbox.register('custom-checkbox-group');
This will register the component as <custom-checkbox>
and <custom-checkbox-group>
.
TypeScript Module Resolution
When using TypeScript set moduleResolution
to bundler
, add the following to your tsconfig.json
:
{
"compilerOptions": {
"moduleResolution": "bundler"
}
}
This configuration enables proper module resolution for the component's TypeScript files.
Basic HTML Example
Here is an example of how to use the Auro Checkbox component in your HTML:
index.html -> <head>
<script type="module">
import "@aurodesignsystem/auro-formkit/auro-checkbox";
</script>
index.html -> <body>
<auro-checkbox-group>
<span slot="legend">
Form label goes here
</span>
<auro-checkbox value="value1" name="basic" id="checkbox-basic1">
Checkbox option
</auro-checkbox>
<auro-checkbox value="value2" name="basic" id="checkbox-basic2" checked>
Checkbox option two
</auro-checkbox>
</auro-checkbox-group>
By following these steps, you can easily integrate Auro Formkit components into your project.
Design Token CSS Custom Property dependency
The use of any Auro custom element has a dependency on the Auro Design Tokens.
Development
Filtering
Running the dev
command will open a localhost
development server for all components in the monorepo at once.
To only develop a single component, use the --filter
flag:
npx turbo dev --filter=@aurodesignsystem/auro-input
Start development environment
Local Development
Testing
npm run test
Port configuration
Turbo will attempt to test components in parallel which will lead to port conflicts.
Setting the concurrency
to 1
will prevent Turbo from running tests in parallel:
"test": "turbo run test --concurrency=1",
turbo.json
does not support --concurrency
yet. See this issue.
Turborepo Overview
This monorepo is managed using Turborepo.
Managing dependencies
Best practices for dependency installation
When you install a dependency in a component or package in auro-formkit
, you should install it directly in the package that uses it.
The package's package.json
will have every dependency that it needs. This is true for both external and internal dependencies.
Types of Dependencies by Source
External Dependencies
- These are packages fetched from the
npm
registry (e.g., Lit, Rollup, Sass)
- Declared in
package.json
using exact versions or version ranges
- Installed in
node_modules
during npm install
or yarn install
Internal Dependencies
- These are packages from within the
auro-formkit
monorepo
- Allow sharing code between different packages in your repository
- Example: The
@aurodesignsystem/combobox
package might depend on @auro-formkit/input
- Must be declared in
package.json
just like external dependencies
- Use workspace protocols (e.g.,
"workspace:*"
or "workspace:^1.0.0"
)
Types of Dependencies by Purpose
Dependencies (dependencies
)
Peer Dependencies (peerDependencies
)
Development Dependencies (devDependencies
)
Example: Component Dependencies
Let's use @auro-formki/combobox
as an example to illustrate these concepts:
{
"name": "@auro-formkit/combobox",
"dependencies": {
"@aurodesignsystem/auro-dropdown": "*",
"@aurodesignsystem/auro-input": "*",
"@alaskaairux/icons": "^5.3.0",
"lit": "^3.2.1"
},
"peerDependencies": {
"@aurodesignsystem/design-tokens": "^4.12.1",
"@aurodesignsystem/webcorestylesheets": "^5.1.2"
},
"devDependencies": {
"rollup": "^4.24.4",
"@auro-formkit/build-tools": "*",
}
}
This structure ensures that:
- The package explicitly declares all its dependencies
- Internal dependencies are properly tracked and versioned
- Development tools are separated from production dependencies
- Peer dependencies are clearly communicated to consumers
This practice has several benefits:
-
Improved clarity: It's easier to understand what a package depends on when its dependencies are listed in its package.json
. Developers working in the repository can see at a glance what dependencies are used within the package.
-
Enhanced flexibility: In a monorepo at scale, it can be unrealistic to expect each package to use the same version of an external dependency.
-
Better caching ability: If you install too many dependencies in the root of your repository, you'll be changing the workspace root whenever you add, update, or delete a dependency, leading to unnecessary cache misses.
-
Pruning unused dependencies: When dependencies are installed in the packages that they are meant for, Turborepo can read your lockfile and remove dependencies that aren't used in the packages you need.
For more information, see the Turborepo docs.
Root package.json
The only dependencies that belong in the root package.json
are tools for managing the repository.
Some examples of dependencies that make sense to install in the root are turbo
, husky
, or stylelint
.
Conversely, dependencies Auro components rely on should be installed in their respective packages, such as Lit
, Rollup
, or other auro-formkit
dependencies.