package client
 
 import (
 	"encoding/json"
 	"net/url"
 
 	"github.com/docker/docker/api/types"
 	"golang.org/x/net/context"
 )
 
 // ContainerDiff shows differences in a container filesystem since it was started.
 func (cli *Client) ContainerDiff(ctx context.Context, containerID string) ([]types.ContainerChange, error) {
 	var changes []types.ContainerChange
 
 	serverResp, err := cli.get(ctx, "/containers/"+containerID+"/changes", url.Values{}, nil)
 	if err != nil {
 		return changes, err
 	}
 
 	err = json.NewDecoder(serverResp.body).Decode(&changes)
 	ensureReaderClosed(serverResp)
 	return changes, err
 }