patch method

Future<Operation> patch (
  1. BackendService request,
  2. String project,
  3. String region,
  4. String backendService,
  5. {String requestId,
  6. String $fields}

Updates the specified regional BackendService resource with the data included in the request. There are several Understanding backend services to keep in mind when updating a backend service. Read Understanding backend services for more information. This method supports PATCH semantics and uses the JSON merge patch format and processing rules.

request - The metadata request object.

Request parameters:

project - Project ID for this request. Value must have pattern "(?:(?:-a-z0-9{1,63}.)*(?:a-z?):)?(?:0-9{1,19}|(?:a-z0-9?))".

region - Name of the region scoping this request. Value must have pattern "a-z?".

backendService - Name of the BackendService resource to patch. Value must have pattern "a-z?|0-9{0,19}".

requestId - An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed.

For example, consider a situation where you make an initial request and the request times out. If you make the request again with the same request ID, the server can check if original operation with the same request ID was received, and if so, will ignore the second request. This prevents clients from accidentally creating duplicate commitments.

The request ID must be a valid UUID with the exception that zero UUID is not supported (00000000-0000-0000-0000-000000000000).

$fields - Selector specifying which fields to include in a partial response.

Completes with a Operation.

Completes with a commons.ApiRequestError if the API endpoint returned an error.

If the used http.Client completes with an error when making a REST call, this method will complete with the same error.


async.Future<Operation> patch(BackendService request, core.String project,
    core.String region, core.String backendService,
    {core.String requestId, core.String $fields}) {
  var _url;
  var _queryParams = new core.Map<core.String, core.List<core.String>>();
  var _uploadMedia;
  var _uploadOptions;
  var _downloadOptions = commons.DownloadOptions.Metadata;
  var _body;

  if (request != null) {
    _body = convert.json.encode((request).toJson());
  if (project == null) {
    throw new core.ArgumentError("Parameter project is required.");
  if (region == null) {
    throw new core.ArgumentError("Parameter region is required.");
  if (backendService == null) {
    throw new core.ArgumentError("Parameter backendService is required.");
  if (requestId != null) {
    _queryParams["requestId"] = [requestId];
  if ($fields != null) {
    _queryParams["fields"] = [$fields];

  _url = commons.Escaper.ecapeVariable('$project') +
      '/regions/' +
      commons.Escaper.ecapeVariable('$region') +
      '/backendServices/' +

  var _response = _requester.request(_url, "PATCH",
      body: _body,
      queryParams: _queryParams,
      uploadOptions: _uploadOptions,
      uploadMedia: _uploadMedia,
      downloadOptions: _downloadOptions);
  return _response.then((data) => new Operation.fromJson(data));