package client
 
 import (
 	"net/url"
 	"strconv"
 
 	"github.com/docker/docker/api/types/swarm"
 	"golang.org/x/net/context"
 )
 
 // NodeUpdate updates a Node.
 func (cli *Client) NodeUpdate(ctx context.Context, nodeID string, version swarm.Version, node swarm.NodeSpec) error {
 	query := url.Values{}
 	query.Set("version", strconv.FormatUint(version.Index, 10))
 	resp, err := cli.post(ctx, "/nodes/"+nodeID+"/update", query, node, nil)
 	ensureReaderClosed(resp)
 	return err
 }