ipld-eth-server/pkg/super_node/shared/intefaces.go

64 lines
1.9 KiB
Go

// VulcanizeDB
// Copyright © 2019 Vulcanize
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package shared
import (
"github.com/ethereum/go-ethereum/rpc"
)
// ResponseFilterer applies a filter to the streamed payload and returns a subscription response packet
type ResponseFilterer interface {
Filter(filter, payload interface{}) (response interface{}, err error)
}
// CIDIndexer indexes a set of cids with their associated meta data in Postgres
type CIDIndexer interface {
Index(cids interface{}) error
}
// CIDRetriever retrieves cids according to a provided filter and returns a cid
type CIDRetriever interface {
Retrieve(filter interface{}, blockNumber int64) (interface{}, bool, error)
RetrieveFirstBlockNumber() (int64, error)
RetrieveLastBlockNumber() (int64, error)
RetrieveGapsInData() ([]Gap, error)
}
type PayloadStreamer interface {
Stream(payloadChan chan interface{}) (*rpc.ClientSubscription, error)
}
type PayloadFetcher interface {
FetchAt(blockHeights []uint64) ([]interface{}, error)
}
type IPLDFetcher interface {
Fetch(cids interface{}) (interface{}, error)
}
type PayloadConverter interface {
Convert(payload interface{}) (interface{}, error)
}
type IPLDPublisher interface {
Publish(payload interface{}) (interface{}, error)
}
type IPLDResolver interface {
Resolve(iplds interface{}) (interface{}, error)
}