syncer - interface for syncing with a statediff subscription

This commit is contained in:
Ian Norden 2019-04-15 11:29:22 -05:00
parent a31c7e9ced
commit d248a1050e

44
pkg/ipfs/syncer.go Normal file
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// 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 ipfs
import (
"github.com/ethereum/go-ethereum/rpc"
"github.com/ethereum/go-ethereum/statediff"
"github.com/vulcanize/vulcanizedb/pkg/core"
)
type Syncer interface {
Sync(payloadChan chan statediff.Payload) (*rpc.ClientSubscription, error)
}
type StateDiffSyncer struct {
Client core.RpcClient
PayloadChan chan statediff.Payload
}
func NewStateDiffSyncer(client core.RpcClient) *StateDiffSyncer {
return &StateDiffSyncer{
Client: client,
}
}
// Sync is the main loop for subscribing to data from the Geth state diff process
func (i *StateDiffSyncer) Sync(payloadChan chan statediff.Payload) (*rpc.ClientSubscription, error) {
return i.Client.Subscribe("statediff", i.PayloadChan)
}