ipld-eth-server/cmd/omniWatcher.go

123 lines
3.6 KiB
Go

// Copyright 2018 Vulcanize
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package cmd
import (
"bufio"
"fmt"
"log"
"os"
"strings"
"github.com/ethereum/go-ethereum/ethclient"
"github.com/ethereum/go-ethereum/rpc"
"github.com/spf13/cobra"
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
"github.com/vulcanize/vulcanizedb/pkg/geth"
"github.com/vulcanize/vulcanizedb/pkg/geth/client"
vRpc "github.com/vulcanize/vulcanizedb/pkg/geth/converters/rpc"
"github.com/vulcanize/vulcanizedb/pkg/geth/node"
"github.com/vulcanize/vulcanizedb/pkg/omni/transformer"
"github.com/vulcanize/vulcanizedb/pkg/omni/types"
)
// omniWatcherCmd represents the omniWatcher command
var omniWatcherCmd = &cobra.Command{
Use: "omniWatcher",
Short: "Watches events at the provided contract address",
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()
},
}
func omniWatcher() {
if contractAddress == "" {
log.Fatal("Contract address required")
}
if contractEvents == nil {
var str string
for str != "y" {
reader := bufio.NewReader(os.Stdin)
fmt.Print("Warning: no events specified, proceeding to watch every event at address" + contractAddress + "? (Y/n)\n> ")
resp, err := reader.ReadBytes('\n')
if err != nil {
log.Fatal(err)
}
str = strings.ToLower(string(resp))
if str == "n" {
return
}
}
}
rawRpcClient, err := rpc.Dial(ipc)
if err != nil {
log.Fatal(err)
}
rpcClient := client.NewRpcClient(rawRpcClient, ipc)
ethClient := ethclient.NewClient(rawRpcClient)
client := client.NewEthClient(ethClient)
node := node.MakeNode(rpcClient)
transactionConverter := vRpc.NewRpcTransactionConverter(ethClient)
blockChain := geth.NewBlockChain(client, node, transactionConverter)
db, err := postgres.NewDB(databaseConfig, blockChain.Node())
if err != nil {
log.Fatal(fmt.Sprintf("Failed to initialize database\r\nerr: %v\r\n", err))
}
con := types.Config{
DB: db,
BC: blockChain,
Network: network,
}
t := transformer.NewTransformer(&con)
t.Set(contractAddress, contractEvents)
err = t.Init()
if err != nil {
log.Fatal(fmt.Sprintf("Failed to initialized generator\r\nerr: %v\r\n", err))
}
log.Fatal(t.Execute())
}
func init() {
rootCmd.AddCommand(omniWatcherCmd)
omniWatcherCmd.Flags().StringVarP(&contractAddress, "contract-address", "a", "", "Single address to generate watchers for")
omniWatcherCmd.Flags().StringArrayVarP(&contractEvents, "contract-events", "e", []string{}, "Subset of events to watch- use only with single address")
omniWatcherCmd.Flags().StringArrayVarP(&contractAddresses, "contract-addresses", "l", []string{}, "Addresses of the contracts to generate watchers for")
omniWatcherCmd.Flags().StringVarP(&network, "network", "n", "", `Network the contract is deployed on; options: "ropsten", "kovan", and "rinkeby"; default is mainnet"`)
}