eth-statediff-service/cmd/serve.go
2021-10-14 12:17:38 +05:30

159 lines
4.6 KiB
Go

// Copyright © 2019 Vulcanize, Inc
//
// 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 cmd
import (
"fmt"
"os"
"os/signal"
"sync"
"github.com/ethereum/go-ethereum/node"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/rpc"
"github.com/sirupsen/logrus"
"github.com/spf13/cobra"
"github.com/spf13/viper"
ind "github.com/ethereum/go-ethereum/statediff/indexer"
"github.com/ethereum/go-ethereum/statediff/indexer/postgres"
sd "github.com/vulcanize/eth-statediff-service/pkg"
)
// serveCmd represents the serve command
var serveCmd = &cobra.Command{
Use: "serve",
Short: "Standup a standalone statediffing RPC service on top of leveldb",
Long: `Usage
./eth-statediff-service serve --config={path to toml config file}`,
Run: func(cmd *cobra.Command, args []string) {
subCommand = cmd.CalledAs()
logWithCommand = *logrus.WithField("SubCommand", subCommand)
serve()
},
}
func serve() {
logWithCommand.Info("starting statediff RPC service")
// load params
path := viper.GetString("leveldb.path")
ancientPath := viper.GetString("leveldb.ancient")
if path == "" || ancientPath == "" {
logWithCommand.Fatal("require a valid eth leveldb primary datastore path and ancient datastore path")
}
nodeInfo := GetEthNodeInfo()
config, err := chainConfig(nodeInfo.ChainID)
if err != nil {
logWithCommand.Fatal(err)
}
// create leveldb reader
logWithCommand.Info("Creating leveldb reader")
lvlDBReader, err := sd.NewLvlDBReader(path, ancientPath, config)
if err != nil {
logWithCommand.Fatal(err)
}
// create statediff service
logWithCommand.Info("Creating statediff service")
db, err := postgres.NewDB(postgres.DbConnectionString(GetDBParams()), GetDBConfig(), nodeInfo)
if err != nil {
logWithCommand.Fatal(err)
}
indexer, err := ind.NewStateDiffIndexer(config, db)
if err != nil {
logWithCommand.Fatal(err)
}
statediffService, err := sd.NewStateDiffService(lvlDBReader, indexer, viper.GetUint("statediff.workers"))
if err != nil {
logWithCommand.Fatal(err)
}
// start service and servers
logWithCommand.Info("Starting statediff service")
wg := new(sync.WaitGroup)
go statediffService.Loop(wg)
logWithCommand.Info("Starting RPC servers")
if err := startServers(statediffService); err != nil {
logWithCommand.Fatal(err)
}
logWithCommand.Info("RPC servers successfully spun up; awaiting requests")
// clean shutdown
shutdown := make(chan os.Signal)
signal.Notify(shutdown, os.Interrupt)
<-shutdown
logWithCommand.Info("Received interrupt signal, shutting down")
statediffService.Stop()
wg.Wait()
}
func init() {
rootCmd.AddCommand(serveCmd)
serveCmd.PersistentFlags().String("http-path", "", "vdb server http path")
serveCmd.PersistentFlags().String("ipc-path", "", "vdb server ipc path")
viper.BindPFlag("server.httpPath", serveCmd.PersistentFlags().Lookup("http-path"))
viper.BindPFlag("server.ipcPath", serveCmd.PersistentFlags().Lookup("ipc-path"))
}
func startServers(serv sd.IService) error {
viper.BindEnv("server.ipcPath", "SERVER_IPC_PATH")
viper.BindEnv("server.httpPath", "SERVER_HTTP_PATH")
ipcPath := viper.GetString("server.ipcPath")
httpPath := viper.GetString("server.httpPath")
if ipcPath == "" && httpPath == "" {
logWithCommand.Fatal("need an ipc path and/or an http path")
}
if ipcPath != "" {
logWithCommand.Info("starting up IPC server")
_, _, err := rpc.StartIPCEndpoint(ipcPath, serv.APIs())
if err != nil {
return err
}
}
if httpPath != "" {
logWithCommand.Info("starting up HTTP server")
handler := rpc.NewServer()
if _, _, err := node.StartHTTPEndpoint(httpPath, rpc.HTTPTimeouts{}, handler); err != nil {
return err
}
}
return nil
}
func chainConfig(chainID uint64) (*params.ChainConfig, error) {
switch chainID {
case 1:
return params.MainnetChainConfig, nil
case 3:
return params.RopstenChainConfig, nil // Ropsten
case 4:
return params.RinkebyChainConfig, nil
case 5:
return params.GoerliChainConfig, nil
default:
return nil, fmt.Errorf("chain config for chainid %d not available", chainID)
}
}