ipld-eth-server/cmd/serve.go

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2020-08-31 15:58:16 +00:00
// Copyright © 2020 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"
s "sync"
"github.com/ethereum/go-ethereum/rpc"
log "github.com/sirupsen/logrus"
"github.com/spf13/cobra"
"github.com/spf13/viper"
"github.com/vulcanize/ipfs-blockchain-watcher/pkg/eth"
"github.com/vulcanize/ipld-eth-server/pkg/serve"
v "github.com/vulcanize/ipld-eth-server/version"
)
// watchCmd represents the watch command
var watchCmd = &cobra.Command{
Use: "watch",
Short: "serve chain data from PG-IPFS",
Long: `This command configures a VulcanizeDB ipld-eth-server.
`,
Run: func(cmd *cobra.Command, args []string) {
subCommand = cmd.CalledAs()
logWithCommand = *log.WithField("SubCommand", subCommand)
watch()
},
}
func watch() {
logWithCommand.Infof("running ipld-eth-server version: %s", v.VersionWithMeta)
var forwardPayloadChan chan eth.ConvertedPayload
wg := new(s.WaitGroup)
logWithCommand.Debug("loading watcher configuration variables")
watcherConfig, err := serve.NewConfig()
if err != nil {
logWithCommand.Fatal(err)
}
logWithCommand.Infof("watcher config: %+v", watcherConfig)
logWithCommand.Debug("initializing new watcher service")
s, err := serve.NewServer(watcherConfig)
if err != nil {
logWithCommand.Fatal(err)
}
logWithCommand.Info("starting up watcher servers")
forwardPayloadChan = make(chan eth.ConvertedPayload, serve.PayloadChanBufferSize)
s.Serve(wg, forwardPayloadChan)
if err := startServers(s, watcherConfig); err != nil {
logWithCommand.Fatal(err)
}
shutdown := make(chan os.Signal)
signal.Notify(shutdown, os.Interrupt)
<-shutdown
s.Stop()
wg.Wait()
}
func startServers(watcher serve.Server, settings *serve.Config) error {
logWithCommand.Debug("starting up IPC server")
_, _, err := rpc.StartIPCEndpoint(settings.IPCEndpoint, watcher.APIs())
if err != nil {
return err
}
logWithCommand.Debug("starting up WS server")
_, _, err = rpc.StartWSEndpoint(settings.WSEndpoint, watcher.APIs(), []string{"vdb"}, nil, true)
if err != nil {
return err
}
logWithCommand.Debug("starting up HTTP server")
_, _, err = rpc.StartHTTPEndpoint(settings.HTTPEndpoint, watcher.APIs(), []string{"eth"}, nil, nil, rpc.HTTPTimeouts{})
return err
}
func init() {
rootCmd.AddCommand(watchCmd)
// flags for all config variables
watchCmd.PersistentFlags().String("watcher-ws-path", "", "vdb server ws path")
watchCmd.PersistentFlags().String("watcher-http-path", "", "vdb server http path")
watchCmd.PersistentFlags().String("watcher-ipc-path", "", "vdb server ipc path")
watchCmd.PersistentFlags().String("eth-ws-path", "", "ws url for ethereum node")
watchCmd.PersistentFlags().String("eth-http-path", "", "http url for ethereum node")
watchCmd.PersistentFlags().String("eth-node-id", "", "eth node id")
watchCmd.PersistentFlags().String("eth-client-name", "", "eth client name")
watchCmd.PersistentFlags().String("eth-genesis-block", "", "eth genesis block hash")
watchCmd.PersistentFlags().String("eth-network-id", "", "eth network id")
// and their bindings
viper.BindPFlag("watcher.wsPath", watchCmd.PersistentFlags().Lookup("watcher-ws-path"))
viper.BindPFlag("watcher.httpPath", watchCmd.PersistentFlags().Lookup("watcher-http-path"))
viper.BindPFlag("watcher.ipcPath", watchCmd.PersistentFlags().Lookup("watcher-ipc-path"))
viper.BindPFlag("ethereum.wsPath", watchCmd.PersistentFlags().Lookup("eth-ws-path"))
viper.BindPFlag("ethereum.httpPath", watchCmd.PersistentFlags().Lookup("eth-http-path"))
viper.BindPFlag("ethereum.nodeID", watchCmd.PersistentFlags().Lookup("eth-node-id"))
viper.BindPFlag("ethereum.clientName", watchCmd.PersistentFlags().Lookup("eth-client-name"))
viper.BindPFlag("ethereum.genesisBlock", watchCmd.PersistentFlags().Lookup("eth-genesis-block"))
viper.BindPFlag("ethereum.networkID", watchCmd.PersistentFlags().Lookup("eth-network-id"))
}