Problem:
POST /payments/gateways/order → 404 'gateway_not_found'
Root Cause:
WordPress REST API matches routes in registration order.
The /gateways/order route was registered AFTER /gateways/{id}.
So /gateways/order was being matched by /gateways/{id} where id='order'.
Then get_gateway('order') returned 'gateway_not_found'.
Solution:
Register specific routes BEFORE dynamic routes:
1. /gateways (list)
2. /gateways/order (specific - NEW POSITION)
3. /gateways/{id} (dynamic)
4. /gateways/{id}/toggle (dynamic with action)
Route Priority Rules:
✅ Specific routes first
✅ Dynamic routes last
✅ More specific before less specific
Before:
/gateways → OK
/gateways/{id} → Matches everything including 'order'
/gateways/{id}/toggle → OK (more specific than {id})
/gateways/order → Never reached!
After:
/gateways → OK
/gateways/order → Matches 'order' specifically
/gateways/{id} → Matches other IDs
/gateways/{id}/toggle → OK
Result:
✅ /gateways/order now works correctly
✅ Sorting saves to database
✅ No more 'gateway_not_found' error
Files Modified:
- PaymentsController.php: Moved /order route before /{id} routes
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