By default, the add-in will automatically read metadata from GraphQL.

Schema Introspection

GraphQL services offer a introspection query service which the add-in can use to obtain view and column names.

A GraphQL introspection query service has a query object at its root. Other objects are nested into the root query object, which can in turn have their own nested objects.

The add-in reads LIST or Relay Connection type objects as views. If a field is SCALAR, it's read as a column, and if a field is a simple OBJECT, it is expanded.

Set the metadata introspection depth as follows:

• ExpandTablesDepth: Setting to 0 will read only from the root query object. In scenarios where lists are nested in other lists, set the ExpandTablesDepth to the number of nested layers deep to be scanned.
• ExpandColumnsDepth: This determines how many more layers deep (starting from the ExpandTablesDepth) to expand objects to include fields from their nested child objects.