Should Empty array other than "Members" be null or []?

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AMI_ivywang
Minnow

Posts: 24

Should Empty array other than "Members" be null or []? Jun 21, 2023 5:50:45 GMT

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Post by AMI_ivywang on Jun 21, 2023 5:50:45 GMT

Hi,

Some properties are mentioned "type": "null" in the schema.
For an array type value not determined, it displays "null" in the Redfish service.
For example:
"AliasBootOrder": null

But property "FanRedundancy" is not mentioned "type": "null" in the schema ThermalSubsystem.v1_0_0.json.
Can it be "null" ? Or should it be an empty array?
FanRedundancy:null or FanRedundancy: []?

mraineri
Administrator

Posts: 1,138

Should Empty array other than "Members" be null or []? Jun 21, 2023 12:48:06 GMT

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Post by mraineri on Jun 21, 2023 12:48:06 GMT

When it comes to arrays, "null" indicates the members of the array can be null; not the array itself. So, something like "AliasBootOrder": [ "Pxe", "Usb", null, null ] is allowed.

For FanRedundancy, "null" is not permitted; it's either an empty array (because there are no fan redundancy instances to track), or it's populated by the fan redundancy info.