104 lines
2.9 KiB
Go
104 lines
2.9 KiB
Go
// Copyright © 2019 Vulcanize, Inc
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//
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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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//
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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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//
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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 cmd
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import (
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"os"
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"os/signal"
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"sync"
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"github.com/ethereum/go-ethereum/rpc"
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"github.com/sirupsen/logrus"
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"github.com/spf13/cobra"
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"github.com/spf13/viper"
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sd "github.com/vulcanize/eth-statediff-service/pkg"
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srpc "github.com/vulcanize/eth-statediff-service/pkg/rpc"
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)
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// serveCmd represents the serve command
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var serveCmd = &cobra.Command{
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Use: "serve",
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Short: "Stand up a standalone statediffing RPC service on top of leveldb",
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Long: `Usage
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./eth-statediff-service serve --config={path to toml config file}`,
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Run: func(cmd *cobra.Command, args []string) {
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subCommand = cmd.CalledAs()
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logWithCommand = *logrus.WithField("SubCommand", subCommand)
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serve()
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},
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}
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func init() {
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rootCmd.AddCommand(serveCmd)
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}
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func serve() {
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logWithCommand.Info("Running eth-statediff-service serve command")
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statediffService, err := createStateDiffService()
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if err != nil {
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logWithCommand.Fatal(err)
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}
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// start service and servers
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logWithCommand.Info("Starting statediff service")
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wg := new(sync.WaitGroup)
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if err := statediffService.Loop(wg); err != nil {
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logWithCommand.Fatalf("unable to start statediff service: %v", err)
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}
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logWithCommand.Info("Starting RPC servers")
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if err := startServers(statediffService); err != nil {
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logWithCommand.Fatal(err)
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}
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logWithCommand.Info("RPC servers successfully spun up; awaiting requests")
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// clean shutdown
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shutdown := make(chan os.Signal)
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signal.Notify(shutdown, os.Interrupt)
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<-shutdown
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logWithCommand.Info("Received interrupt signal, shutting down")
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statediffService.Stop()
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wg.Wait()
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}
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func startServers(serv sd.StateDiffService) error {
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ipcPath := viper.GetString("server.ipcPath")
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httpPath := viper.GetString("server.httpPath")
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if ipcPath == "" && httpPath == "" {
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logWithCommand.Fatal("need an ipc path and/or an http path")
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}
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if ipcPath != "" {
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logWithCommand.Info("starting up IPC server")
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_, _, err := srpc.StartIPCEndpoint(ipcPath, serv.APIs())
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if err != nil {
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return err
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}
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}
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if httpPath != "" {
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logWithCommand.Info("starting up HTTP server")
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_, err := srpc.StartHTTPEndpoint(httpPath, serv.APIs(), []string{"statediff"}, nil, []string{"*"}, rpc.HTTPTimeouts{})
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if err != nil {
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return err
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}
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} else {
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logWithCommand.Info("HTTP server is disabled")
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}
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return nil
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}
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