syncer - interface for syncing with a statediff subscription
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pkg/ipfs/syncer.go
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44
pkg/ipfs/syncer.go
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// VulcanizeDB
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// Copyright © 2019 Vulcanize
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package ipfs
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import (
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"github.com/ethereum/go-ethereum/rpc"
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"github.com/ethereum/go-ethereum/statediff"
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"github.com/vulcanize/vulcanizedb/pkg/core"
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)
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type Syncer interface {
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Sync(payloadChan chan statediff.Payload) (*rpc.ClientSubscription, error)
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}
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type StateDiffSyncer struct {
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Client core.RpcClient
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PayloadChan chan statediff.Payload
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}
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func NewStateDiffSyncer(client core.RpcClient) *StateDiffSyncer {
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return &StateDiffSyncer{
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Client: client,
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}
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}
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// Sync is the main loop for subscribing to data from the Geth state diff process
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func (i *StateDiffSyncer) Sync(payloadChan chan statediff.Payload) (*rpc.ClientSubscription, error) {
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return i.Client.Subscribe("statediff", i.PayloadChan)
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}
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