post https://visual-api.blobcity.com/rest/v1/chart/set-data
Update data of an existing chart that is loaded with manually specified data
The operation will succeed only if the cid specified is valid and the key provided has necessary permissions to carry out the operation.
If this function is used on charts loaded with a query, the data set will override any query the chart has. The chart will then always show the set data instead of running a query. To set the chart back to a query, use the update-query rest api.