The journeys subject provides guided learning experiences (called "tracks") that help users navigate through a sequence of related documentation articles. Tracks appear on special landing pages and provide contextual navigation to move through articles in a structured learning path.

This subject is responsible for:

• Rendering journey landing pages that display multiple journey tracks
• Providing prev/next navigation within journey track articles
• Resolving journey context based on the current article path
• Rendering Liquid templates in journey metadata (titles, descriptions, guide paths)

Journey tracks are defined in article frontmatter using the journeyTracks field on pages with layout: journey-landing.

src/journeys/
├── components/
│   ├── JourneyTrackCard.tsx    # Card showing journey progress with next/prev links
│   ├── JourneyTrackNav.tsx     # Navigation bar for prev/next articles in a track
│   └── index.ts                # Component exports
├── lib/
│   ├── get-link-data.ts        # Fetches title and href data for journey guide links
│   └── journey-path-resolver.ts # Core logic: resolves journey context and tracks
├── middleware/
│   └── journey-track.ts        # Express middleware that attaches journey data to requests
└── tests/
    └── journey-path-resolver.ts # Unit tests for journey resolution logic

• Journey landing pages must have layout: journey-landing in their frontmatter
• Journey tracks are defined in the journeyTracks frontmatter field (see example below)

npm run test -- src/journeys/tests

---
title: Enterprise onboarding
layout: journey-landing
journeyTracks:
  - id: 'getting_started'
    title: 'Getting started with {% data variables.product.prodname_ghe_cloud %}'
    description: 'Master the fundamentals and get started with a trial.'
    timeCommitment: '2-4 hours'
    guides:
      - '/enterprise-onboarding/choose-an-enterprise-type'
      - '/enterprise-onboarding/setting-up-a-trial'
      - '/enterprise-onboarding/adding-users'
---

• Content frontmatter: journeyTracks field on landing pages defines track structure
• Article metadata: Article titles and paths are resolved via get-link-data.ts
• Liquid variables: Track titles, descriptions, and guide paths support Liquid templating

• @/content-render: Used to render Liquid templates in journey metadata
• @/frame/lib/path-utils: Normalizes paths for consistent matching
• @/versions: Checks version compatibility between journey pages and articles
• @/languages: Executes rendering with fallback for internationalization
• @/landings: Journey components are consumed by landing page layouts

• req.context.currentJourneyTrack: Journey context object with track info and prev/next links
• req.context.page.resolvedJourneyTracks: Array of resolved track data for landing pages

• Journey tracks currently inherit version constraints from their landing page
• Path normalization logic must stay synchronized with other path-handling middleware
• Journey context resolution has some performance overhead due to iterating all pages
• Currently only support a particular page belonging to a single journey track/step - we won't show nav components for all the journeys an article belongs to

Continued work to expand and add more journey tracks.