> For the complete documentation index, see [llms.txt](https://documentation.dnanexus.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://documentation.dnanexus.com/developer/api/introduction-to-data-object-metadata/name.md).

# Name

Within a project, each object has a name, which is a UTF-8 string which must not match the regular expression `[\x00-\x1F]`. This means non-printable characters like whitespace tabs and newlines are not allowed. Object names do not need to be unique within the same project.

The name of an object is returned by the "describe" method, and modified by the "rename" method.

## API method: `/class-xxxx/rename`

### Specification

Renames an existing object in the specified project.

### Inputs

* `project` **string** (required) ID of the project or container containing the object to be modified.
* `name` **string** (required) The new name of the object.

### Outputs

* `id` **string** ID of the manipulated object.

### Errors

* `InvalidInput`
  * The input is not a hash.
  * `project` is missing or is not a string.
  * `name` is missing or is an empty string or matches the regular expression `[\x00-\x1F]`.
* `ResourceNotFound`
  * The specified object does not exist.
  * The specified project does not exist.
  * The specified project does not contain the specified object.
* `PermissionDenied`
  * If the object is open, UPLOAD access is required, otherwise CONTRIBUTE access is required for the specified project.


---

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