Packages

trait WritePackagesService extends AnyRef

An interface for uploading packages via a participant.

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Abstract Value Members

  1. abstract def uploadPackages(submissionId: SubmissionId, dar: ByteString)(implicit traceContext: TraceContext): CompletionStage[SubmissionResult]

    Upload a collection of Daml-LF packages to the ledger.

    Upload a collection of Daml-LF packages to the ledger.

    This method must be thread-safe, not throw, and not block on IO. It is though allowed to perform significant computation.

    Successful archives upload will result in a com.digitalasset.canton.ledger.participant.state.v2.Update.PublicPackageUpload message. See the comments on com.digitalasset.canton.ledger.participant.state.v2.ReadService.stateUpdates and com.digitalasset.canton.ledger.participant.state.v2.Update for further details.

    Note: we accept com.daml.daml_lf_dev.DamlLf.Archives rather than parsed packages, because we want to be able to get the byte size of each individual ArchivePayload, which is information that the read / index service need to provide. Moreover this information should be consistent with the payload that the com.daml.ledger.api.v1.package_service.GetPackageResponse contains. If we were to consume packages we'd have to re-encode them to provide the size, and the size might potentially be different from the original size, which would be quite confusing.

    submissionId

    Submitter chosen submission identifier.

    returns

    an async result of a com.digitalasset.canton.ledger.participant.state.v2.SubmissionResult

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