Spree Legacy API v2

Before writing code

Fetch live docs:

1. Fetch https://github.com/spree/spree_legacy_api_v2 (README) for the current install and supported Spree versions.
2. The historical v2 docs may live at https://api.spreecommerce.org/ — verify what's still hosted.
3. Compare with the v3 reference at https://spreecommerce.org/docs/api-reference to plan migration.
4. Check the Spree release notes — v2 endpoints can be removed without notice in major upgrades.
5. Inspect the gem's controllers under app/controllers/spree/api/v2/.

Conceptual Architecture

What Was v2

API v2 was the canonical Spree API across v4.x and v5.0–5.3. Two surfaces: