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@@ -603,6 +603,14 @@ get 'photos/:id', to: 'photos#show', defaults: { format: 'jpg' }
Rails would match `photos/12` to the `show` action of `PhotosController`, and set `params[:format]` to `"jpg"`.
+You can also use `defaults` in a block format to define the defaults for multiple items:
+
+```ruby
+defaults format: :json do
+ resources :photos
+end
+```
+
NOTE: You cannot override defaults via query parameters - this is for security reasons. The only defaults that can be overridden are dynamic segments via substitution in the URL path.
### Naming Routes