add l2 fee multiplier

taikoxyz · Apr 10, 2024 · 7b975c6 · 7b975c6
1 parent 55426ef
commit 7b975c6
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Showing 3 changed files with 21 additions and 2 deletions.
diff --git a/packages/bridge-ui/.env.example b/packages/bridge-ui/.env.example
@@ -34,4 +34,7 @@ export CONFIGURED_RELAYER=
 export CONFIGURED_EVENT_INDEXER=
 
 # Show the slow L1 bridging warning
-export PUBLIC_SLOW_L1_BRIDGING_WARNING=false
+export PUBLIC_SLOW_L1_BRIDGING_WARNING=false
+
+# L2 processing fee multiplier
+export PUBLIC_L2_PROCESSING_FEE_MULTIPLIER=10
diff --git a/packages/bridge-ui/src/libs/chain/chains.ts b/packages/bridge-ui/src/libs/chain/chains.ts
@@ -3,6 +3,8 @@ import type { Chain } from 'viem';
 import { chainConfig } from '$chainConfig';
 import type { ChainConfig } from '$libs/chain';
 
+import { LayerType } from './types';
+
 function mapChainConfigToChain(chainId: string, chainConfig: ChainConfig): Chain {
   return {
     id: Number(chainId),
@@ -21,6 +23,10 @@ export const chainIdToChain = (chainId: number): Chain => {
   return chain;
 };
 
+export const isL2Chain = (chainId: number) => {
+  return chainConfig[chainId].type === LayerType.L2;
+};
+
 export const chains: [Chain, ...Chain[]] = Object.entries(chainConfig).map(([chainId, chainConfig]) =>
   mapChainConfigToChain(chainId, chainConfig),
 ) as [Chain, ...Chain[]];

diff --git a/packages/bridge-ui/src/libs/fee/recommendProcessingFee.ts b/packages/bridge-ui/src/libs/fee/recommendProcessingFee.ts
@@ -1,6 +1,8 @@
 import { getPublicClient } from '@wagmi/core';
 
 import { recommendProcessingFeeConfig } from '$config';
+import { PUBLIC_L2_PROCESSING_FEE_MULTIPLIER } from '$env/static/public';
+import { isL2Chain } from '$libs/chain';
 import { NoCanonicalInfoFoundError } from '$libs/error';
 import { type Token, TokenType } from '$libs/token';
 import { getTokenAddresses } from '$libs/token/getTokenAddresses';
@@ -40,6 +42,14 @@ export async function recommendProcessingFee({
   // getGasPrice will return gasPrice as 3000000001, rather than 3000000000
   const gasPrice = await destPublicClient.getGasPrice();
 
+  let multiplier = 1;
+
+  //TODO: temporary increase multiplier for L2 chains until we have a better solution via the relayer
+  // figure out if it is L2-L1
+  if (isL2Chain(srcChainId)) {
+    multiplier = parseInt(PUBLIC_L2_PROCESSING_FEE_MULTIPLIER);
+  }
+
   // The gas limit for processMessage call for ETH is about ~800k.
   // To make it enticing, we say 900k
   let gasLimit = ethGasLimit;
@@ -82,5 +92,5 @@ export async function recommendProcessingFee({
       }
     }
   }
-  return gasPrice * gasLimit;
+  return gasPrice * gasLimit * BigInt(multiplier);
 }