Add "Accessing route data" section in getStaticPaths with routePattern

[openscript]

Add section on accessing route data and example code for getStaticPaths.

Description (required)

This documents the proposal to make routePattern available in getStaticPaths. With routePattern it's possible to dynamically calculate the params that getStaticPaths returns. Before it was not possible to access the routePattern because getStaticPaths is executed at a time when Astro.routePattern is not available.

Related issues & labels (optional)

For Astro version: 5.15. See astro PR #13520.

Known as openscript in Discord.

[netlify]

✅ Deploy Preview for astro-docs-2 ready!

Built without sensitive environment variables

Name	Link
🔨 Latest commit	7e6cbbd
🔍 Latest deploy log	https://app.netlify.com/projects/astro-docs-2/deploys/68cc621acf2cf500085debc8
😎 Deploy Preview	https://deploy-preview-12316--astro-docs-2.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify project configuration.

[astrobot-houston]

Lunaria Status Overview

🌕 This pull request will trigger status changes.

Learn more

By default, every PR changing files present in the Lunaria configuration's files property will be considered and trigger status changes accordingly.

You can change this by adding one of the keywords present in the ignoreKeywords property in your Lunaria configuration file in the PR's title (ignoring all files) or by including a tracker directive in the merged commit's description.

Tracked Files

File	Note
en/reference/routing-reference.mdx	Source changed, localizations will be marked as outdated.

Warnings reference

Icon	Description
🔄️	The source for this localization has been updated since the creation of this pull request, make sure all changes in the source have been applied.

[sarah11918]

This looks great @openscript ! Thank you for providing such a clear starting point for these docs! 💪

I had some thoughts below for your consideration, and some questions. You are the subject matter expert here, and I'm just suggesting some words that would make this "sound like" Astro Docs, but I'll need to rely on you to confirm some things and make this accurate! 🙌

Then, when we're happy here, we'll tackle the changeset in the Astro PR where we really get to hype how cool this is, introduce it to the world, and encourage people to use it! 🚀

[ArmandPhilippot]

As Sarah said, this looks great. I mostly answered Sarah's suggestion and also give some ideas to improve the code snippet used as example.