Redfish is a Distributed Management Task Force (DMTF) standard specification and schema that specifies a RESTful interface. It uses JSON and OData to help integrate solutions with existing tools.
The following documentation describes the use of Redfish API for Integrated Dell Remote Access Controller (iDRAC).
iDRAC9 Redfish API Guide:
For the latest iDRAC Redfish API guide, go to developer.dell.com. Under the Servers section, select iDRAC9 Redfish API.
To access any of the 4.xx, 5.xx, 6.xx, or 7.xx versions on developer.dell.com/apis, go to the latest API guide and select the version series.
For all the previous versions such as 3.00.00.00 or 3.40.40.40, go to dell.com/idracmanual.
iDRAC8 Redfish API Guide:
RESTful Server Configuration with iDRAC RESTful API white paper