ipld-eth-server/libraries/shared/streamer/statediff_streamer.go
2019-10-31 13:42:19 -05:00

42 lines
1.2 KiB
Go

// Copyright 2019 Vulcanize
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package streamer
import (
"github.com/ethereum/go-ethereum/rpc"
"github.com/ethereum/go-ethereum/statediff"
"github.com/sirupsen/logrus"
"github.com/vulcanize/vulcanizedb/pkg/core"
)
type Streamer interface {
Stream(chan statediff.Payload) (*rpc.ClientSubscription, error)
}
type StateDiffStreamer struct {
client core.RPCClient
}
func (streamer *StateDiffStreamer) Stream(payloadChan chan statediff.Payload) (*rpc.ClientSubscription, error) {
logrus.Info("streaming diffs from geth")
return streamer.client.Subscribe("statediff", payloadChan, "stream")
}
func NewStateDiffStreamer(client core.RPCClient) StateDiffStreamer {
return StateDiffStreamer{
client: client,
}
}