Function historyReadThrough

The default historian, installed through AddressSpace.historizerFactory.

historyReadThrough(
    target: IHistoryReadTarget,
    context: ISessionContext,
    historyReadDetails:
        | ReadAtTimeDetails
        | ReadEventDetails
        | ReadProcessedDetails
        | ReadRawModifiedDetails,
    indexRange: NumericRange | null,
    dataEncoding: QualifiedNameLike | null,
    continuationData: ContinuationData,
): Promise<HistoryReadResult>
HistoryRead on such a Variable, with the logic of the node objects (raw and modified values, values at a time, continuation points). Processed values (aggregates) answer BadHistoryOperationUnsupported: they are computed on the node objects.
Parameters
- target: IHistoryReadTarget
- context: ISessionContext
- historyReadDetails:
      | ReadAtTimeDetails
      | ReadEventDetails
      | ReadProcessedDetails
      | ReadRawModifiedDetails
- indexRange: NumericRange | null
- dataEncoding: QualifiedNameLike | null
- continuationData: ContinuationData
Returns Promise<HistoryReadResult>
- Defined in work/node-opcua/node-opcua/packages/node-opcua-address-space/dist/impl/historical_access/address_space_historical_data_node.d.ts:42