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Example code of justinholtweb/craft-lightning

Informations about the package craft-lightning

Lightning

Google PageSpeed Insights for Craft CMS 5. Get performance scores, Core Web Vitals, and optimization suggestions right inside the control panel.

Features

Requirements

Installation

Add the repository and require the package with Composer:

Then install the plugin:

Or install from the control panel under Settings > Plugins.

Setup

  1. Get a free API key from the Google Cloud Console
  2. Enable the PageSpeed Insights API in your Google Cloud project
  3. In the Craft control panel, go to Settings > Lightning
  4. Enter your API key (or use an environment variable like $GOOGLE_PSI_API_KEY)
  5. Choose a default strategy (Mobile, Desktop, or Both)

Using an environment variable

Add to your .env file:

Then enter $GOOGLE_PSI_API_KEY in the plugin settings.

Usage

Dashboard Widget

  1. Go to the Dashboard
  2. Click New Widget > PageSpeed Insights
  3. Enter the URL to audit and choose a strategy
  4. Click Run Audit to see results

Add multiple widgets to monitor different pages.

Entry Sidebar

The sidebar panel appears automatically on any entry that has a public URL. Click Run Audit to get the current performance data for that entry's page.

Scores

Scores follow Google's thresholds:

Range Rating
90–100 Good (green)
50–89 Needs Improvement (orange)
0–49 Poor (red)

API Rate Limits

With an API key, you get approximately 25,000 requests per day. Each "Both" audit uses 2 requests (one mobile, one desktop). Without a key the API will not work — a key is required in plugin settings.

License

This plugin is licensed under The Craft License.

Development

The project ships with a DDEV environment providing PHP 8.2 and MariaDB 10.11. The integration suite needs the database, so run everything through it:

Test suites

Suite Location Runner Needs a database
Unit tests/unit PHPUnit No
Integration tests/integration Codeception + Craft Yes

Unit tests cover the Craft-free response parsing in ResponseParser. Integration tests boot a real Craft installation with the plugin loaded to exercise the plugin lifecycle, settings, widget, service, and controller.

Run them individually with:

The integration suite installs Craft into the DDEV database and drops all its tables between runs, so point it at a throwaway database only. Credentials live in tests/.env, which is untracked — copy tests/.env.example to create it.

Static analysis and code style checks:

All versions of craft-lightning with dependencies

PHP Build Version
Package Version
Requires php Version ^8.2
craftcms/cms Version ^5.3.0
Composer command for our command line client (download client) This client runs in each environment. You don't need a specific PHP version etc. The first 20 API calls are free. Standard composer command

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