问题
Is there any way to get the history for Private data in Hyperledger Fabric node SDK.
I've tried using getHistoryForKey(key)
It returns an empty object with only { done: true }
回答1:
The API to get history for private data is not yet implemented, but is planned for a future release of Hyperledger Fabric.
In the interim you could add some minimal information to a public key in the same transaction for historical tracking. That could either be a logical key, or if the key itself is sensitive, you could take a hash of the logical key and save that as a public key. Then use GetHistoryForKey on the public key to find the transactions of the private data.
来源：https://stackoverflow.com/questions/51960671/history-for-private-data-in-hyperledger-fabric