Add support for resizing volumes.

storage_actions.go

@@ -8,6 +8,7 @@ import "fmt"
 type StorageActionsService interface {
 	Attach(volumeID string, dropletID int) (*Action, *Response, error)
 	Detach(volumeID string) (*Action, *Response, error)
+	Resize(volumeID string, sizeGigabytes int, regionSlug string) (*Action, *Response, error)
 }
 
 // StorageActionsServiceOp handles communication with the floating IPs
@@ -39,6 +40,16 @@ func (s *StorageActionsServiceOp) Detach(volumeID string) (*Action, *Response, e
 	return s.doAction(volumeID, request)
 }
 
+// Resize a storage volume.
+func (s *StorageActionsServiceOp) Resize(volumeID string, sizeGigabytes int, regionSlug string) (*Action, *Response, error) {
+	request := &ActionRequest{
+		"type":           "resize",
+		"size_gigabytes": sizeGigabytes,
+		"region":         regionSlug,
+	}
+	return s.doAction(volumeID, request)
+}
+
 func (s *StorageActionsServiceOp) doAction(volumeID string, request *ActionRequest) (*Action, *Response, error) {
 	path := storageAllocationActionPath(volumeID)
 

storage_actions_test.go

@@ -71,3 +71,35 @@ func TestStoragesActions_Detach(t *testing.T) {
 		t.Errorf("StoragesActions.Detach returned error: %v", err)
 	}
 }
+
+func TestStoragesActions_Resize(t *testing.T) {
+	setup()
+	defer teardown()
+	volumeID := "98d414c6-295e-4e3a-ac58-eb9456c1e1d1"
+
+	resizeRequest := &ActionRequest{
+		"type":           "resize",
+		"size_gigabytes": float64(500),
+		"region":         "nyc1",
+	}
+
+	mux.HandleFunc("/v2/volumes/"+volumeID+"/actions", func(w http.ResponseWriter, r *http.Request) {
+		v := new(ActionRequest)
+		err := json.NewDecoder(r.Body).Decode(v)
+		if err != nil {
+			t.Fatalf("decode json: %v", err)
+		}
+
+		testMethod(t, r, "POST")
+		if !reflect.DeepEqual(v, resizeRequest) {
+			t.Errorf("want=%#v", resizeRequest)
+			t.Errorf("got=%#v", v)
+		}
+		fmt.Fprintf(w, `{"action":{"status":"in-progress"}}`)
+	})
+
+	_, _, err := client.StorageActions.Resize(volumeID, 500, "nyc1")
+	if err != nil {
+		t.Errorf("StoragesActions.Resize returned error: %v", err)
+	}
+}