trails/openspec/changes/mobile-app/specs/journal-auth/spec.md
Ullrich Schäfer fff77a2ed2
Add mobile app, map-core, nearby sync, and activity recording specs
mobile-app: Unified React Native + Expo app combining Planner and
Journal. OAuth2 PKCE auth, MapLibre maps, versioned REST API with
Zod schemas, configurable server URL, offline SQLite, Web Push relay
notifications. TanStack Query + Zustand state management. Jest +
Maestro testing. 76 tasks across 5 phases.

map-core-package: Extract renderer-agnostic map definitions (tiles,
color palettes, POI categories, z-index) into @trails-cool/map-core.
Pure refactor preparing for MapLibre on mobile. 27 tasks.

mobile-activity-recording: GPS recording, live stats, HealthKit/Health
Connect export. Separated from mobile-app for independent scheduling.

mobile-nearby-sync: BLE route sync between nearby devices for offline
group riding. QR waypoint sharing as simpler v1. TXQR noted as future.

journal-rest-api spec: Full API contract — endpoints, auth, pagination,
errors, discovery, versioning, BRouter proxy.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-12 21:52:30 +02:00

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1.5 KiB
Markdown

## MODIFIED Requirements
### Requirement: OAuth2 PKCE authorization flow
The Journal SHALL support OAuth2 authorization code flow with PKCE for mobile app token exchange, in addition to existing passkey and magic link authentication.
#### Scenario: Authorization endpoint
- **WHEN** a client requests `GET /oauth/authorize` with client_id, redirect_uri, code_challenge, and code_challenge_method
- **THEN** the Journal shows the existing login UI and, upon successful authentication, redirects to the redirect_uri with an authorization code
#### Scenario: Token exchange
- **WHEN** a client sends `POST /oauth/token` with the authorization code, code_verifier, client_id, and redirect_uri
- **THEN** the Journal validates the PKCE challenge, issues an access token and refresh token, and returns them
#### Scenario: Token refresh
- **WHEN** a client sends `POST /oauth/token` with grant_type=refresh_token and a valid refresh token
- **THEN** the Journal issues a new access token and optionally a new refresh token
#### Scenario: Invalid PKCE challenge
- **WHEN** a client sends a code_verifier that does not match the stored code_challenge
- **THEN** the Journal rejects the token exchange with a 400 error
### Requirement: OAuth2 client registration
The Journal SHALL register the mobile app as a trusted first-party OAuth2 client.
#### Scenario: Mobile app client
- **WHEN** the mobile app initiates an OAuth2 flow with client_id `trails-cool-mobile`
- **THEN** the Journal recognizes it as a trusted client and allows the `trailscool://` redirect URI scheme