forked from cerc-io/ipld-eth-server
47 lines
1.6 KiB
Go
47 lines
1.6 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 ipfs
|
|
|
|
import (
|
|
"github.com/ethereum/go-ethereum/rpc"
|
|
"github.com/ethereum/go-ethereum/statediff"
|
|
|
|
"github.com/vulcanize/vulcanizedb/pkg/core"
|
|
)
|
|
|
|
// Streamer is the interface for streaming a statediff subscription
|
|
type Streamer interface {
|
|
Stream(payloadChan chan statediff.Payload) (*rpc.ClientSubscription, error)
|
|
}
|
|
|
|
// StateDiffStreamer is the underlying struct for the Streamer interface
|
|
type StateDiffStreamer struct {
|
|
Client core.RpcClient
|
|
PayloadChan chan statediff.Payload
|
|
}
|
|
|
|
// NewStateDiffStreamer creates a pointer to a new StateDiffStreamer which satisfies the Streamer interface
|
|
func NewStateDiffSyncer(client core.RpcClient) *StateDiffStreamer {
|
|
return &StateDiffStreamer{
|
|
Client: client,
|
|
}
|
|
}
|
|
|
|
// Stream is the main loop for subscribing to data from the Geth state diff process
|
|
func (i *StateDiffStreamer) Stream(payloadChan chan statediff.Payload) (*rpc.ClientSubscription, error) {
|
|
return i.Client.Subscribe("statediff", i.PayloadChan)
|
|
} |