From 6e200a52053f6a1b3c57e6fcddc6c6d0c32fcc0d Mon Sep 17 00:00:00 2001
From: Phan Soon Huat <soonhuat.phan@hotmail.com>
Date: Sun, 14 Aug 2022 23:20:37 +0800
Subject: [PATCH] add gas fee multiplier to max priority fee

---
 src/utils/ContractUtils.ts | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/utils/ContractUtils.ts b/src/utils/ContractUtils.ts
index 9e4e7f39..5f563a24 100644
--- a/src/utils/ContractUtils.ts
+++ b/src/utils/ContractUtils.ts
@@ -119,11 +119,16 @@ export async function sendTx(
   }
   try {
     const feeHistory = await web3.eth.getFeeHistory(1, 'pending', [75])
-    sendTxValue.maxPriorityFeePerGas = new BigNumber(feeHistory?.reward?.[0]?.[0])
+    let aggressiveFee = new BigNumber(feeHistory?.reward?.[0]?.[0])
+    if (this.config?.gasFeeMultiplier > 1) {
+      aggressiveFee = aggressiveFee.multipliedBy(this.config?.gasFeeMultiplier)
+    }
+
+    sendTxValue.maxPriorityFeePerGas = aggressiveFee
       .integerValue(BigNumber.ROUND_DOWN)
       .toString(10)
 
-    sendTxValue.maxFeePerGas = new BigNumber(feeHistory?.reward?.[0]?.[0])
+    sendTxValue.maxFeePerGas = aggressiveFee
       .plus(new BigNumber(feeHistory?.baseFeePerGas?.[0]).multipliedBy(2))
       .integerValue(BigNumber.ROUND_DOWN)
       .toString(10)