eth-statediff-service/cmd/serve.go
nikugogoi 5f6aec35b2
Support remote RPC client to access LevelDB (#83)
* Implement use of custom chain config to test locally

* Use leveldb-ethdb-rpc instead of leveldb path

* Implement flag for leveldb access mode

* Remove custom chain config json

* Move database client to leveldb-ethdb-rpc

* Update leveldb-ethdb-rpc version
2022-05-17 14:35:11 +05:30

112 lines
3.1 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 (
"os"
"os/signal"
"sync"
"github.com/ethereum/go-ethereum/rpc"
"github.com/sirupsen/logrus"
"github.com/spf13/cobra"
"github.com/spf13/viper"
sd "github.com/vulcanize/eth-statediff-service/pkg"
srpc "github.com/vulcanize/eth-statediff-service/pkg/rpc"
)
// serveCmd represents the serve command
var serveCmd = &cobra.Command{
Use: "serve",
Short: "Stand up 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 init() {
rootCmd.AddCommand(serveCmd)
}
func serve() {
logWithCommand.Info("Running eth-statediff-service serve command")
statediffService, err := createStateDiffService()
if err != nil {
logWithCommand.Fatal(err)
}
// short circuit if we only want to perform prerun
if viper.GetBool("prerun.only") {
if err := statediffService.Run(nil); err != nil {
logWithCommand.Fatal("unable to perform prerun: %v", err)
}
return
}
// start service and servers
logWithCommand.Info("Starting statediff service")
wg := new(sync.WaitGroup)
if err := statediffService.Loop(wg); err != nil {
logWithCommand.Fatalf("unable to start statediff service: %v", err)
}
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 startServers(serv sd.StateDiffService) error {
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 := srpc.StartIPCEndpoint(ipcPath, serv.APIs())
if err != nil {
return err
}
}
if httpPath != "" {
logWithCommand.Info("starting up HTTP server")
_, err := srpc.StartHTTPEndpoint(httpPath, serv.APIs(), []string{"statediff"}, nil, []string{"*"}, rpc.HTTPTimeouts{})
if err != nil {
return err
}
} else {
logWithCommand.Info("HTTP server is disabled")
}
return nil
}