ipld-eth-server/pkg/serve/config.go
2020-10-27 12:57:26 -05:00

134 lines
4.1 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 serve
import (
"fmt"
"math/big"
"os"
"path/filepath"
"github.com/ethereum/go-ethereum/rpc"
"github.com/vulcanize/ipld-eth-indexer/pkg/shared"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/params"
"github.com/spf13/viper"
"github.com/vulcanize/ipld-eth-indexer/pkg/postgres"
"github.com/vulcanize/ipld-eth-indexer/utils"
"github.com/vulcanize/ipld-eth-server/pkg/prom"
"github.com/vulcanize/ipld-eth-server/pkg/eth"
)
// Env variables
const (
SERVER_WS_PATH = "SERVER_WS_PATH"
SERVER_IPC_PATH = "SERVER_IPC_PATH"
SERVER_HTTP_PATH = "SERVER_HTTP_PATH"
SERVER_MAX_IDLE_CONNECTIONS = "SERVER_MAX_IDLE_CONNECTIONS"
SERVER_MAX_OPEN_CONNECTIONS = "SERVER_MAX_OPEN_CONNECTIONS"
SERVER_MAX_CONN_LIFETIME = "SERVER_MAX_CONN_LIFETIME"
ETH_DEFAULT_SENDER_ADDR = "ETH_DEFAULT_SENDER_ADDR"
ETH_RPC_GAS_CAP = "ETH_RPC_GAS_CAP"
)
// Config struct
type Config struct {
DB *postgres.DB
DBConfig postgres.Config
WSEndpoint string
HTTPEndpoint string
IPCEndpoint string
ChainConfig *params.ChainConfig
DefaultSender *common.Address
RPCGasCap *big.Int
Client *rpc.Client
}
// NewConfig is used to initialize a watcher config from a .toml file
// Separate chain watcher instances need to be ran with separate ipfs path in order to avoid lock contention on the ipfs repository lockfile
func NewConfig() (*Config, error) {
c := new(Config)
viper.BindEnv("server.wsPath", SERVER_WS_PATH)
viper.BindEnv("server.ipcPath", SERVER_IPC_PATH)
viper.BindEnv("server.httpPath", SERVER_HTTP_PATH)
viper.BindEnv("ethereum.httpPath", shared.ETH_HTTP_PATH)
viper.BindEnv("ethereum.defaultSender", ETH_DEFAULT_SENDER_ADDR)
viper.BindEnv("ethereum.rpcGasCap", ETH_RPC_GAS_CAP)
c.DBConfig.Init()
ethHTTP := viper.GetString("ethereum.httpPath")
nodeInfo, cli, err := shared.GetEthNodeAndClient(fmt.Sprintf("http://%s", ethHTTP))
if err != nil {
return nil, err
}
c.Client = cli
wsPath := viper.GetString("server.wsPath")
if wsPath == "" {
wsPath = "127.0.0.1:8080"
}
c.WSEndpoint = wsPath
ipcPath := viper.GetString("server.ipcPath")
if ipcPath == "" {
home, err := os.UserHomeDir()
if err != nil {
return nil, err
}
ipcPath = filepath.Join(home, ".vulcanize/vulcanize.ipc")
}
c.IPCEndpoint = ipcPath
httpPath := viper.GetString("server.httpPath")
if httpPath == "" {
httpPath = "127.0.0.1:8081"
}
c.HTTPEndpoint = httpPath
overrideDBConnConfig(&c.DBConfig)
serveDB := utils.LoadPostgres(c.DBConfig, nodeInfo)
prom.RegisterDBCollector(c.DBConfig.Name, serveDB.DB)
c.DB = &serveDB
defaultSenderStr := viper.GetString("ethereum.defaultSender")
if defaultSenderStr != "" {
sender := common.HexToAddress(defaultSenderStr)
c.DefaultSender = &sender
}
rpcGasCapStr := viper.GetString("ethereum.rpcGasCap")
if rpcGasCapStr != "" {
if rpcGasCap, ok := new(big.Int).SetString(rpcGasCapStr, 10); ok {
c.RPCGasCap = rpcGasCap
}
}
c.ChainConfig, err = eth.ChainConfig(nodeInfo.ChainID)
return c, err
}
func overrideDBConnConfig(con *postgres.Config) {
viper.BindEnv("database.server.maxIdle", SERVER_MAX_IDLE_CONNECTIONS)
viper.BindEnv("database.server.maxOpen", SERVER_MAX_OPEN_CONNECTIONS)
viper.BindEnv("database.server.maxLifetime", SERVER_MAX_CONN_LIFETIME)
con.MaxIdle = viper.GetInt("database.server.maxIdle")
con.MaxOpen = viper.GetInt("database.server.maxOpen")
con.MaxLifetime = viper.GetInt("database.server.maxLifetime")
}