ipld-eth-server/cmd/omniWatcher.go
2019-03-13 11:42:30 -05:00

122 lines
4.5 KiB
Go

// VulcanizeDB
// Copyright © 2019 Vulcanize
// 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"
"log"
"time"
"github.com/spf13/cobra"
ft "github.com/vulcanize/vulcanizedb/pkg/omni/full/transformer"
lt "github.com/vulcanize/vulcanizedb/pkg/omni/light/transformer"
st "github.com/vulcanize/vulcanizedb/pkg/omni/shared/transformer"
"github.com/vulcanize/vulcanizedb/utils"
)
// omniWatcherCmd represents the omniWatcher command
var omniWatcherCmd = &cobra.Command{
Use: "omniWatcher",
Short: "Watches events at the provided contract address using fully synced vDB",
Long: `Uses input contract address and event filters to watch events
Expects an ethereum node to be running
Expects an archival node synced into vulcanizeDB
Requires a .toml config file:
[database]
name = "vulcanize_public"
hostname = "localhost"
port = 5432
[client]
ipcPath = "/Users/user/Library/Ethereum/geth.ipc"
`,
Run: func(cmd *cobra.Command, args []string) {
omniWatcher()
},
}
var (
network string
contractAddress string
contractAddresses []string
contractEvents []string
contractMethods []string
eventArgs []string
methodArgs []string
methodPiping bool
mode string
)
func omniWatcher() {
if contractAddress == "" && len(contractAddresses) == 0 {
log.Fatal("Contract address required")
}
ticker := time.NewTicker(5 * time.Second)
defer ticker.Stop()
blockChain := getBlockChain()
db := utils.LoadPostgres(databaseConfig, blockChain.Node())
var t st.Transformer
switch mode {
case "light":
t = lt.NewTransformer(network, blockChain, &db)
case "full":
t = ft.NewTransformer(network, blockChain, &db)
default:
log.Fatal("Invalid mode")
}
contractAddresses = append(contractAddresses, contractAddress)
for _, addr := range contractAddresses {
t.SetEvents(addr, contractEvents)
t.SetMethods(addr, contractMethods)
t.SetEventArgs(addr, eventArgs)
t.SetMethodArgs(addr, methodArgs)
t.SetPiping(addr, methodPiping)
t.SetStartingBlock(addr, startingBlockNumber)
}
err := t.Init()
if err != nil {
log.Fatal(fmt.Sprintf("Failed to initialized transformer\r\nerr: %v\r\n", err))
}
for range ticker.C {
t.Execute()
}
}
func init() {
rootCmd.AddCommand(omniWatcherCmd)
omniWatcherCmd.Flags().StringVarP(&mode, "mode", "o", "light", "'light' or 'full' mode to work with either light synced or fully synced vDB (default is light)")
omniWatcherCmd.Flags().StringVarP(&contractAddress, "contract-address", "a", "", "Single address to generate watchers for")
omniWatcherCmd.Flags().StringArrayVarP(&contractAddresses, "contract-addresses", "l", []string{}, "list of addresses to use; warning: watcher targets the same events and methods for each address")
omniWatcherCmd.Flags().StringArrayVarP(&contractEvents, "events", "e", []string{}, "Subset of events to watch; by default all events are watched")
omniWatcherCmd.Flags().StringArrayVarP(&contractMethods, "methods", "m", nil, "Subset of methods to poll; by default no methods are polled")
omniWatcherCmd.Flags().StringArrayVarP(&eventArgs, "event-args", "f", []string{}, "Argument values to filter event logs for; will only persist event logs that emit at least one of the value specified")
omniWatcherCmd.Flags().StringArrayVarP(&methodArgs, "method-args", "g", []string{}, "Argument values to limit methods to; will only call methods with emitted values that were specified here")
omniWatcherCmd.Flags().StringVarP(&network, "network", "n", "", `Network the contract is deployed on; options: "ropsten", "kovan", and "rinkeby"; default is mainnet"`)
omniWatcherCmd.Flags().Int64VarP(&startingBlockNumber, "starting-block-number", "s", 0, "Block to begin watching- default is first block the contract exists")
omniWatcherCmd.Flags().BoolVarP(&methodPiping, "piping", "p", false, "Turn on method output piping: methods listed first will be polled first and their output used as input to subsequent methods")
}