The Flexmonster custom data source API is a communication protocol that allows retrieving already aggregated data from a server to Flexmonster Pivot.
To fetch the data from the server, Flexmonster sends POST requests to the API endpoints in JSON format.
| <url>/handshake | the first request to establish a connection between the client and server sides |
| <url>/fields | request for all fields with their types |
| <url>/members | request for all members of the field |
| <url>/select | request for data, can be for pivot table, flat table, and drill-through view |
