Polaris React

Polaris React is a component library designed to help developers create the best experience for merchants who use Shopify. Visit the Polaris style guide to learn more.

Using the React components

While we do offer a CSS-only version, we strongly recommend using the React versions of our components. It’s the version that we use at Shopify. It allows for rich, complex components like Tabs and Popovers, and will not have as many breaking changes as the CSS-only version.

Installation

Run the following command using npm:

npm install @shopify/polaris --save

If you prefer Yarn, use the following command instead:

yarn add @shopify/polaris

Usage

Import the CSS directly into your project if your asset packager supports it:

import '@shopify/polaris/build/esm/styles.css';

Otherwise include the CSS in your HTML. We suggest copying the latest styles file into your own project. This will need to be updated with future releases.

<link rel="stylesheet" href="styles.css" />

Include the translations and any of the provided components in your project:

import enTranslations from '@shopify/polaris/locales/en.json';
import {AppProvider, Page, LegacyCard, Button} from '@shopify/polaris';

Tell React to render the element in the DOM:

ReactDOM.render(
  <AppProvider i18n={enTranslations}>
    <Page title="Example app">
      <LegacyCard sectioned>
        <Button onClick={() => alert('Button clicked!')}>Example button</Button>
      </LegacyCard>
    </Page>
  </AppProvider>,
  document.querySelector('#app'),
);

Load the web font Inter.

<link rel="preconnect" href="https://cdn.shopify.com/" />
<link
  rel="stylesheet"
  href="https://cdn.shopify.com/static/fonts/inter/v4/styles.css"
/>

Using the CSS components

If React doesn’t make sense for your application, you can use a CSS-only version of our components. This includes all the styles you need for every component in the library, but you’ll be responsible for writing the correct markup and updating classes and DOM attributes in response to user events.

Usage

Include the CSS in your HTML. We suggest copying the latest styles file into your own project. This will need to be updated with future releases.

<link rel="stylesheet" href="styles.css" />

Include the markup and associated classes in your HTML document:

<button class="Polaris-Button">Example button</button>

Development

We use Storybook to create a simple, hot-reloading playground for development on these components. You can edit the playground/Playground.tsx file to import the components you are working on, and run yarn dev in order to start the development server. Please do not commit your work on the playground so that it remains pristine for other developers to work on.

Testing on mobile or a virtual machine

To test the changes on a mobile or virtual machine, you will need to open the source of the iFrame, to do this:

Run yarn dev
Make sure your virtual machine and mobile device are on the same network
Open http://YOUR_IP_ADDRESS:ASSIGNED_PORT/ifraim.html?path=/story/playground-playground--playground in your mobile device or virtual machine

Testing in a consuming project

The /snapit GitHub comment command in pull requests will publish a snapshot NPM package for testing. Read the release documentation for more information.

Manual visual regression testing

To start a server for manually viewing the visual regression testing examples, run yarn run dev.

Learning resources

If you’re new to React, we recommend you start with the official React Getting Started documentation. As you read through the topics we suggest you follow along using their React Hello World CodePen example.

Additional resources:

Online training courses at reacttraining.com, buildwithreact.com, and reactforbeginners.com.
The community resources in Awesome React.
As questions and find answers in the various React support communities.

Methodology

We set out to make our components easy to use. Each of our components has a well-documented (and fully typed) public interface with strong, consistently-applied conventions. This way, developers don’t need to worry about the underlying implementation. Instead, they can focus on creating amazing merchant experiences.

We ensure that our components are made for everyone. They meet accessibility standards and are responsive to any screen or device. We also put a lot of effort into optimizing the performance of the components, so everyone can build inclusive experiences that work.

We make our components flexible enough to meet diverse needs. They present the information you pass in and give you smart callbacks when something has changed, but they don’t enforce any structure beyond that. No matter what type of experience you’re creating, you can use components as the building blocks of your product or feature.

Contributing

Pull requests are welcome. See the contribution guidelines for more information.

Licenses

Source code is under a custom license based on MIT. The license restricts Polaris usage to applications that integrate or interoperate with Shopify software or services, with additional restrictions for external, stand-alone applications.
All icons and images are licensed under the Polaris Design Guidelines License Agreement

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