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Introduction to JustiFi Web Component Library

Welcome to the JustiFi Web Component Library. These web components are framework-agnostic and can be used in modern frameworks like React, Vue, Angular, or plain HTML.

Usage​

HTML Web Components​

The simplest way to use the Web Components is to include the following script within your HTML. This loads all the components into the browser's custom component registry.

<head>
<script
  type="module"
  src="https://cdn.jsdelivr.net/npm/@justifi/webcomponents@6.7.3/dist/webcomponents/webcomponents.esm.js"
></script>

</head>

Then, you can use the custom elements as normal HTML tags.

<justifi-checkout auth-token="token" checkout-id="chk_123"></justifi-checkout>

It can also be installed as a package with npm or pnpm:

npm install --save @justifi/webcomponents
# or
pnpm add @justifi/webcomponents

and import the component module using ES modules.

import '@justifi/webcomponents/dist/module/justifi-checkout.js';

Styling​

How Parts Stack for Efficient Global Styling​

Parts are designed hierarchically to let you apply global styles like color or font-family universally, while components inherit these settings without repetitive targeting.

Core Parts and Inheritance​

  1. Base Parts: color, font-family, and background-color define foundational styles.

    • These propagate into higher-level parts like text, button, and input.

  2. Higher-Level Parts:

    • text: Combines color and font-family for typography.
    • input, button, label: Inherit text, ensuring consistent styles across components.

Global Styling in Action​

Universal Font​

Set the font for all components using font-family:

::part(font-family) {
  font-family: 'Inter', system-ui, sans-serif;
}

Universal Text Color​

Set the text color once via color:

::part(color) {
  color: #1d1b2f;
}

These apply to all components that rely on text, including buttons, inputs, and headings.

Component-Specific Overrides​

After defining global styles, customize specific components using their higher-level parts:

Buttons​

::part(button-primary) {
  background-color: #0d3b66;
  color: #fff; /* Overrides `color` */
}

Input States​

::part(input-focused) {
  border-color: #0d3b66;
  background-color: #f0f8ff;
}

To view the full list of available parts for styling, consult the source file here.

Best Practices​

  1. Style Base Parts First: Focus on color and font-family for global consistency.
  2. Override as Needed: Use component-specific parts (e.g., button-primary) sparingly for deviations.
  3. Inspect and Leverage Stacking: Ensure you understand how parts like text layer to avoid redundant styles.

This hierarchy ensures maintainable, reusable styles across all components with minimal effort.

Report Issues​

For bugs and issues, please:

  1. Go to our GitHub Issues.
  2. Click "New Issue" and describe the problem.