Reference : JSON REST API reference : Attributes : DELETE method
  
DELETE method
The following table gives examples of how to delete the specified attribute values by using the DELETE method:
 
Attribute type
Request body
File
For example, to delete the 01.json file from the file attribute, specify the following URL and use the delete command.
https://fpserver.com:9443/fp/resources/workspaces/3/modules/13/elements/16/attributes/237/files/01.json
List (Text)
For example, to delete the 1369815257240.json entry from the list text attribute, specify the following URL and use the delete command.
https://fpserver.com:9443/fp/resources/workspaces/3/modules/13/elements/19/attributes/247/entries/1369815257240.json
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