From 0b283c9401d9ea8764ff86a81895816dc118eda1 Mon Sep 17 00:00:00 2001
From: HaoyangLiu <lhy.0318@163.com>
Date: Sat, 29 Aug 2020 15:48:44 +0800
Subject: [PATCH] add gas price to config

---
 config/config.go              |  3 ++-
 config/config.json            |  1 +
 executor/bsc_executor.go      | 11 +++++------
 executor/bsc_executor_test.go | 12 ++++++------
 executor/const.go             |  2 ++
 5 files changed, 16 insertions(+), 13 deletions(-)

diff --git a/config/config.go b/config/config.go
index a8339e2..4e62285 100644
--- a/config/config.go
+++ b/config/config.go
@@ -90,6 +90,7 @@ type BSCConfig struct {
 	PrivateKey          string   `json:"private_key"`
 	Provider            string   `json:"provider"`
 	GasLimit            uint64   `json:"gas_limit"`
+	GasPrice            uint64   `json:"gas_price"`
 	MonitorDataSeedList []string `json:"monitor_data_seed_list"`
 }
 
@@ -113,7 +114,7 @@ func (cfg *BSCConfig) Validate() {
 	if cfg.KeyType != KeyTypeAWSPrivateKey && cfg.PrivateKey == "" {
 		panic(fmt.Sprintf("privateKey of Binance Smart Chain should not be empty"))
 	}
-	if cfg.GasLimit <= 0 {
+	if cfg.GasLimit == 0 {
 		panic(fmt.Sprintf("gas_limit of Binance Smart Chain should be larger than 0"))
 	}
 }
diff --git a/config/config.json b/config/config.json
index 7470c2d..4eb99b5 100644
--- a/config/config.json
+++ b/config/config.json
@@ -23,6 +23,7 @@
     "private_key": "",
     "provider": "https://data-seed-prebsc-1-s1.binance.org:8545",
     "gas_limit": 4700000,
+    "gas_price": 20000000000,
     "monitor_data_seed_list": []
   },
   "log_config": {
diff --git a/executor/bsc_executor.go b/executor/bsc_executor.go
index e3f96fb..196abc5 100644
--- a/executor/bsc_executor.go
+++ b/executor/bsc_executor.go
@@ -95,16 +95,15 @@ func (executor *BSCExecutor) getTransactor() (*bind.TransactOpts, error) {
 		return nil, err
 	}
 
-	gasPrice, err := executor.bscClient.SuggestGasPrice(context.Background())
-	if err != nil {
-		return nil, err
-	}
-
 	txOpts := bind.NewKeyedTransactor(executor.privateKey)
 	txOpts.Nonce = big.NewInt(int64(nonce))
 	txOpts.Value = big.NewInt(0)
 	txOpts.GasLimit = executor.bscConfig.GasLimit
-	txOpts.GasPrice = gasPrice
+	if executor.bscConfig.GasPrice == 0 {
+		txOpts.GasPrice = big.NewInt(DefaultGasPrice)
+	} else {
+		txOpts.GasPrice = big.NewInt(int64(executor.bscConfig.GasPrice))
+	}
 	return txOpts, nil
 }
 
diff --git a/executor/bsc_executor_test.go b/executor/bsc_executor_test.go
index 09a408f..4e3c06b 100644
--- a/executor/bsc_executor_test.go
+++ b/executor/bsc_executor_test.go
@@ -16,21 +16,21 @@ import (
 )
 
 const (
-	BBCRpc     = "http://dex-qa-s1-bsc-dev-validator-alb-501442930.ap-northeast-1.elb.amazonaws.com:27147"
-	provider   = "http://dex-qa-s1-bsc-dev-validator-alb-501442930.ap-northeast-1.elb.amazonaws.com:8545"
+	BBCRpc     = "tcp://seed-pre-s3.binance.org:80"
+	provider   = "http://data-seed-prebsc-1-s1.binance.org:8545"
 	privateKey = "EB19E69C9EBF9737FCB41AFFF5D6E3B3711E15579E5FA89F03DC4656EEC34E4D"
 )
 
 var (
 	cfg = &config.Config{
-		CrossChainConfig: &config.CrossChainConfig{
+		CrossChainConfig: config.CrossChainConfig{
 			SourceChainID: 1,
-			DestChainID:   96,
+			DestChainID:   97,
 		},
-		BBCConfig: &config.BBCConfig{
+		BBCConfig: config.BBCConfig{
 			RpcAddr: BBCRpc,
 		},
-		BSCConfig: &config.BSCConfig{
+		BSCConfig: config.BSCConfig{
 			GasLimit:   4700000,
 			Provider:   provider,
 			PrivateKey: privateKey,
diff --git a/executor/const.go b/executor/const.go
index 998739c..488afd7 100644
--- a/executor/const.go
+++ b/executor/const.go
@@ -21,6 +21,8 @@ const (
 	CrossChainPackageEventType          = "IBCPackage"
 	CorssChainPackageInfoAttributeKey   = "IBCPackageInfo"
 	CorssChainPackageInfoAttributeValue = "%d" + separator + "%d" + separator + "%d" // destChainID channelID sequence
+
+	DefaultGasPrice = 20000000000 // 20 GWei
 )
 
 var (