api versions
diff --git a/openstack/orchestration/v1/apiversions/results.go b/openstack/orchestration/v1/apiversions/results.go
new file mode 100644
index 0000000..40b26ae
--- /dev/null
+++ b/openstack/orchestration/v1/apiversions/results.go
@@ -0,0 +1,47 @@
+package apiversions
+
+import (
+ "github.com/mitchellh/mapstructure"
+ "github.com/rackspace/gophercloud/pagination"
+)
+
+// Link represents the base URL for a particular version.
+type Link struct {
+ HRef string `mapstructure:"href"`
+ Rel string `mapstructure:"rel"`
+}
+
+// APIVersion represents an API version for Neutron. It contains the status of
+// the API, and its unique ID.
+type APIVersion struct {
+ Status string `mapstructure:"status"`
+ ID string `mapstructure:"id"`
+ Links []Link `mapstructure:"links"`
+}
+
+// APIVersionPage is the page returned by a pager when traversing over a
+// collection of API versions.
+type APIVersionPage struct {
+ pagination.SinglePageBase
+}
+
+// IsEmpty checks whether an APIVersionPage struct is empty.
+func (r APIVersionPage) IsEmpty() (bool, error) {
+ is, err := ExtractAPIVersions(r)
+ if err != nil {
+ return true, err
+ }
+ return len(is) == 0, nil
+}
+
+// ExtractAPIVersions takes a collection page, extracts all of the elements,
+// and returns them a slice of APIVersion structs. It is effectively a cast.
+func ExtractAPIVersions(page pagination.Page) ([]APIVersion, error) {
+ var resp struct {
+ Versions []APIVersion `mapstructure:"versions"`
+ }
+
+ err := mapstructure.Decode(page.(APIVersionPage).Body, &resp)
+
+ return resp.Versions, err
+}