Spree Engine/API Mounting Routes - spree

Question

I am mounting spree at a "custom" location, like so:
mount Spree::Core::Engine, :at => '/shop'
This works fine for the main portion of the site, but API calls in the admin side get 404ed.
No route matches [GET] "/shop/api/orders/R373466857/shipments/H36171240358/ship.json"
I noticed that the API routes look like this:
ready_api_order_shipment_path PUT /api/orders/:order_id/shipments/:id/ready(.:format) spree/api/shipments#ready {:format=>"json"}
ship_api_order_shipment_path PUT /api/orders/:order_id/shipments/:id/ship(.:format) spree/api/shipments#ship {:format=>"json"}
add_api_order_shipment_path PUT /api/orders/:order_id/shipments/:id/add(.:format) spree/api/shipments#add {:format=>"json"}
remove_api_order_shipment_path PUT /api/orders/:order_id/shipments/:id/remove(.:format) spree/api/shipments#remove {:format=>"json"}
Notice the lack of /shop prepending the relevant routes. Any ideas? I can just redirect them in my HTTP server, but that seems like a godawful hack.

Answer 1

Your engine is being mounted correctly. In your rake routes you should see something like this:
1| Prefix Verb URI Pattern Controller#Action
2| spree /shop Spree::Core::Engine
3|
4| Routes for Spree::Core::Engine:
5| new_spree_user_session GET /user/spree_user/sign_in(.:format) spree/user_sessions#new
All of the spree routes are mounted under /shop as shown by line 2 above. The Routes for Spree::Core::Engine section lists the routes relative to the path the engine is mounted under. It's a bit confusing, but that's the way rake routes works.
I believe that you're having problems because you're trying to do a GET request to a route which only accepts PUT requests. If you switch your HTTP request type, you should get things to resolve correctly.