chaincode

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 Go to latest Published: Jan 25, 2026 License: MIT Imports: 4 Imported by: 0

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Functions

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Types

type MetadataSmartContract 

type MetadataSmartContract struct {
	contractapi.Contract
}

MetadataSmartContract provides functions for managing metadata records in the world state of a Fabric network.

func (*MetadataSmartContract) AddAggregator 

func (s *MetadataSmartContract) AddAggregator(ctx contractapi.TransactionContextInterface, aggregatorId int, communicationKeysCyphersJSON string) error

AddAggregator issues a new aggregator record to the world state with the given details. The record is bound to the client's identity.

func (*MetadataSmartContract) AddAggregatorModelMetadata 

func (s *MetadataSmartContract) AddAggregatorModelMetadata(
	ctx contractapi.TransactionContextInterface,
	aggregatorId int,
	epoch int,
	modelHashCid string,
	participantIdsJSON string,
) error

AddAggregatorModelMetadata issues a new aggregator's model aggregation metadata record to the world state with the given details. Can only be done by the owner of the aggregator or an admin.

func (*MetadataSmartContract) AddParticipant 

func (s *MetadataSmartContract) AddParticipant(
	ctx contractapi.TransactionContextInterface,
	participantId int,
	encapsulatedKey string,
	homomorphicSharedKeyCypher string,
	communicationKeyCypher string,
) error

AddParticipant issues a participant record to the world state with the given details. The record is bound to the client's identity.

func (*MetadataSmartContract) AddParticipantModelMetadata 

func (s *MetadataSmartContract) AddParticipantModelMetadata(
	ctx contractapi.TransactionContextInterface,
	participantId int,
	epoch int,
	modelHashCid string,
	homomorphicHash string,
) error

AddParticipantModelMetadata issues a new participant's model update metadata record to the world state with the given details. Can only be done by the owner of the participant or an admin.

func (*MetadataSmartContract) AggregatorExists 

func (s *MetadataSmartContract) AggregatorExists(ctx contractapi.TransactionContextInterface, aggregatorId int) (bool, error)

AggregatorExists returns true when an aggregator record for the given aggregatorId exists in the world state

func (*MetadataSmartContract) AggregatorModelMetadataExists 

func (s *MetadataSmartContract) AggregatorModelMetadataExists(ctx contractapi.TransactionContextInterface, aggregatorId int, epoch int) (bool, error)

AggregatorModelMetadataExists returns true when an aggregator model metadata record for the given epoch exists in the world state.

func (*MetadataSmartContract) DeleteAggregator 

func (s *MetadataSmartContract) DeleteAggregator(ctx contractapi.TransactionContextInterface, aggregatorId int) error

DeleteAggregator deletes a given aggregator record from the world state. Can only be done by the owner of the aggregator or an admin.

func (*MetadataSmartContract) DeleteAggregatorModelMetadata 

func (s *MetadataSmartContract) DeleteAggregatorModelMetadata(ctx contractapi.TransactionContextInterface, aggregatorId int, epoch int) error

DeleteAggregatorModelMetadata deletes a given aggregator model metadata record from the world state. Can only be done by the owner of the aggregator or an admin.

func (*MetadataSmartContract) DeleteAllAggregatorModelMetadata 

func (s *MetadataSmartContract) DeleteAllAggregatorModelMetadata(ctx contractapi.TransactionContextInterface) error

DeleteAllAggregatorModelMetadata deletes all aggregator model metadata records from the world state. Can only be done by an admin.

func (*MetadataSmartContract) DeleteAllAggregators 

func (s *MetadataSmartContract) DeleteAllAggregators(ctx contractapi.TransactionContextInterface) error

DeleteAllAggregators deletes all aggregator records from the world state. Can only be done by an admin.

func (*MetadataSmartContract) DeleteAllParticipantModelMetadata 

func (s *MetadataSmartContract) DeleteAllParticipantModelMetadata(ctx contractapi.TransactionContextInterface) error

DeleteAllParticipantModelMetadata deletes all participant model metadata records from the world state. Can only be done by an admin.

func (*MetadataSmartContract) DeleteAllParticipants 

func (s *MetadataSmartContract) DeleteAllParticipants(ctx contractapi.TransactionContextInterface) error

DeleteAllParticipants deletes all participant records from the world state. Can only be done by an admin.

func (*MetadataSmartContract) DeleteParticipant 

func (s *MetadataSmartContract) DeleteParticipant(ctx contractapi.TransactionContextInterface, participantId int) error

DeleteParticipant deletes a given participant record from the world state. Can only be done by the owner of the participant or an admin.

func (*MetadataSmartContract) DeleteParticipantModelMetadata 

func (s *MetadataSmartContract) DeleteParticipantModelMetadata(ctx contractapi.TransactionContextInterface, participantId int, epoch int) error

DeleteParticipantModelMetadata deletes a given participant model metadata record from the world state. Can only be done by the owner of the participant or an admin.

func (*MetadataSmartContract) GetAggregator 

func (s *MetadataSmartContract) GetAggregator(ctx contractapi.TransactionContextInterface, aggregatorId int) (*shared.Aggregator, error)

GetAggregator returns the aggregator record stored in the world state for the given aggregatorId.

func (*MetadataSmartContract) GetAggregatorModelMetadata 

func (s *MetadataSmartContract) GetAggregatorModelMetadata(ctx contractapi.TransactionContextInterface, aggregatorId int, epoch int) (*shared.AggregatorModelMetadata, error)

GetAggregatorModelMetadata returns the aggregator's model aggregation metadata record stored in the world state for the given epoch.

func (*MetadataSmartContract) GetAllAggregatorModelMetadata 

func (s *MetadataSmartContract) GetAllAggregatorModelMetadata(ctx contractapi.TransactionContextInterface) ([]*shared.AggregatorModelMetadata, error)

GetAllAggregatorModelMetadata returns all aggregator model metadata records found in the world state.

func (*MetadataSmartContract) GetAllAggregatorModelMetadataByAggregator 

func (s *MetadataSmartContract) GetAllAggregatorModelMetadataByAggregator(ctx contractapi.TransactionContextInterface, aggregatorId int) ([]*shared.AggregatorModelMetadata, error)

GetAllAggregatorModelMetadataByAggregator returns all aggregator model metadata records found in the world state.

func (*MetadataSmartContract) GetAllAggregators 

func (s *MetadataSmartContract) GetAllAggregators(ctx contractapi.TransactionContextInterface) ([]*shared.Aggregator, error)

GetAllAggregators returns all aggregator records found in the world state.

func (*MetadataSmartContract) GetAllLogs 

func (s *MetadataSmartContract) GetAllLogs(ctx contractapi.TransactionContextInterface) ([]shared.LogEntry, error)

GetAllLogs returns the history for all objects in the world state. Can only be done by the admin.

func (*MetadataSmartContract) GetAllParticipantModelMetadata 

func (s *MetadataSmartContract) GetAllParticipantModelMetadata(ctx contractapi.TransactionContextInterface) ([]*shared.ParticipantModelMetadata, error)

GetAllParticipantModelMetadata returns all participant model metadata records found in the world state.

func (*MetadataSmartContract) GetAllParticipantModelMetadataByEpoch 

func (s *MetadataSmartContract) GetAllParticipantModelMetadataByEpoch(ctx contractapi.TransactionContextInterface, epoch int) ([]*shared.ParticipantModelMetadata, error)

GetAllParticipantModelMetadataByEpoch returns all participant model metadata records found in the world state for the given epoch.

func (*MetadataSmartContract) GetAllParticipantModelMetadataByParticipant 

func (s *MetadataSmartContract) GetAllParticipantModelMetadataByParticipant(ctx contractapi.TransactionContextInterface, participantId int) ([]*shared.ParticipantModelMetadata, error)

GetAllParticipantModelMetadataByParticipant returns all participant model metadata records found in the world state created by the participant.

func (*MetadataSmartContract) GetAllParticipants 

func (s *MetadataSmartContract) GetAllParticipants(ctx contractapi.TransactionContextInterface) ([]*shared.Participant, error)

GetAllParticipants returns all participant records found in the world state.

func (*MetadataSmartContract) GetParticipant 

func (s *MetadataSmartContract) GetParticipant(ctx contractapi.TransactionContextInterface, participantId int) (*shared.Participant, error)

GetParticipant returns the participant record stored in the world state for the given id.

func (*MetadataSmartContract) GetParticipantModelMetadata 

func (s *MetadataSmartContract) GetParticipantModelMetadata(ctx contractapi.TransactionContextInterface, participantId int, epoch int) (*shared.ParticipantModelMetadata, error)

GetParticipantModelMetadata returns the participant's model update metadata record stored in the world state for the given participantId and epoch.

func (*MetadataSmartContract) ParticipantExists 

func (s *MetadataSmartContract) ParticipantExists(ctx contractapi.TransactionContextInterface, participantId int) (bool, error)

ParticipantExists returns true when a participant record for the given id exists in the world state.

func (*MetadataSmartContract) ParticipantModelMetadataExists 

func (s *MetadataSmartContract) ParticipantModelMetadataExists(ctx contractapi.TransactionContextInterface, participantId int, epoch int) (bool, error)

ParticipantModelMetadataExists returns true when a participant model metadata record for the given participantId and epoch exists in the world state.

func (*MetadataSmartContract) UpdateAggregator 

func (s *MetadataSmartContract) UpdateAggregator(ctx contractapi.TransactionContextInterface, aggregatorId int, communicationKeysCyphersJSON string) error

UpdateAggregator updates an existing aggregator record in the world state with provided parameters. Can only be done by the owner of the aggregator or an admin.

func (*MetadataSmartContract) UpdateAggregatorModelMetadata 

func (s *MetadataSmartContract) UpdateAggregatorModelMetadata(
	ctx contractapi.TransactionContextInterface,
	aggregatorId int,
	epoch int,
	modelHashCid string,
	participantIdsJSON string,
) error

UpdateAggregatorModelMetadata updates an existing aggregator model metadata record in the world state with provided parameters. Can only be done by the owner of the aggregator or an admin.

func (*MetadataSmartContract) UpdateParticipant 

func (s *MetadataSmartContract) UpdateParticipant(
	ctx contractapi.TransactionContextInterface,
	participantId int,
	encapsulatedKey string,
	homomorphicSharedKeyCypher string,
	communicationKeyCypher string,
) error

UpdateParticipant updates a participant record in the world state with provided parameters. Can only be done by the owner of the participant or an admin.

func (*MetadataSmartContract) UpdateParticipantModelMetadata 

func (s *MetadataSmartContract) UpdateParticipantModelMetadata(
	ctx contractapi.TransactionContextInterface,
	participantId int,
	epoch int,
	modelHashCid string,
	homomorphicHash string,
) error

UpdateParticipantModelMetadata updates an existing participant model metadata record in the world state with provided parameters. Can only be done by the owner of the participant or an admin.

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