UPDATE PAGE FIELD
POSTÂ http://localhost:8090/rest/pagefields/1.0/utility/update/field
Required Schema Fields:
pageId (Number) - Confluence Page ID
fieldName (String)
fieldValue (String)
history (Boolean) - Optional
Response: [Status: 200]
$ curl -u"user:pass" -XPOST -H "Content-Type: application/json" --data '{"pageId":342345, \ "fieldName":"confidential.agreement.receive.date", "fieldValue":"2017-05-03"}' \ http://localhost:8090/rest/pagefields/1.0/utility/update/field {"field":10,"message":"[Info] Updated Page Field"} $
Update creates field if not exists.
For more REST APIs go to, Page Fields REST API