get method
Gets a single document.
Request parameters:
name - Required. The resource name of the Document to get. In the
format:
projects/{project_id}/databases/{database_id}/documents/{document_path}.
Value must have pattern
^projects/\[^/\]+/databases/\[^/\]+/documents/\[^/\]+/.*$.
mask_fieldPaths - The list of field paths in the mask. See
Document.fields for a field path syntax reference.
readTime - Reads the version of the document at the given time. This
must be a microsecond precision timestamp within the past one hour, or if
Point-in-Time Recovery is enabled, can additionally be a whole minute
timestamp within the past 7 days.
transaction - Reads the document in a transaction.
$fields - Selector specifying which fields to include in a partial
response.
Completes with a Document.
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.
Implementation
async.Future<Document> get(
  core.String name, {
  core.List<core.String>? mask_fieldPaths,
  core.String? readTime,
  core.String? transaction,
  core.String? $fields,
}) async {
  final queryParams_ = <core.String, core.List<core.String>>{
    if (mask_fieldPaths != null) 'mask.fieldPaths': mask_fieldPaths,
    if (readTime != null) 'readTime': [readTime],
    if (transaction != null) 'transaction': [transaction],
    if ($fields != null) 'fields': [$fields],
  };
  final url_ = 'v1/' + core.Uri.encodeFull('$name');
  final response_ = await _requester.request(
    url_,
    'GET',
    queryParams: queryParams_,
  );
  return Document.fromJson(response_ as core.Map<core.String, core.dynamic>);
}