This API is used to delete a label and the files that only contain this label.

You can debug this API through automatic authentication in or use the SDK sample code generated by API Explorer.

DELETE /v2/{project_id}/datasets/{dataset_id}/data-annotations/labels/{label_name}

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
dataset_id	Yes	String	Dataset ID.
label_name	Yes	String	Label name.
project_id	Yes	String	Project ID. For details about how to obtain a project ID, see Obtaining a Project ID and Name.

**Table 2** Query Parameters
Parameter	Mandatory	Type	Description
delete_source	No	Boolean	Whether to delete the sample source files. Options: true: Delete the sample source files. false: Do not delete the sample source files. (Default value)
label_type	No	Integer	Label type. Options: 0: image classification 1: object detection 3: image segmentation 100: text classification 101: named entity recognition 102: text triplet relationship label 103: text triplet entity label 200: sound classification 201: speech content 202: speech paragraph labeling 600: video labeling

None

Status code: 204

**Table 3** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error message.
success	Boolean	Check whether the operation is successful. Options: true: The operation is successful. false: The operation is failed.

Deleting a Label and the Files that Only Contain the Label

DELETE https://{endpoint}/v2/{project_id}/datasets/WxCREuCkBSAlQr9xrde/data-annotations/labels/%E8%8D%89%E8%8E%93

Status code: 204

No Content

{
  "success" : true
}