Merge pull request #125 from CityOfZion/CU-86du17cj2

#86du17cj2 - Ethereum Adapter - Calculate transaction fee
CityOfZion · Jul 22, 2024 · 7612271 · 7612271
2 parents f6bf387 + 0461fc4
commit 7612271
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diff --git a/common/changes/@cityofzion/wallet-connect-sdk-wallet-core/main_2024-07-18-19-07.json b/common/changes/@cityofzion/wallet-connect-sdk-wallet-core/main_2024-07-18-19-07.json
@@ -0,0 +1,10 @@
+{
+  "changes": [
+    {
+      "packageName": "@cityofzion/wallet-connect-sdk-wallet-core",
+      "comment": "Added calculateFee method to AbstractWalletConnectEIP155Adapter",
+      "type": "minor"
+    }
+  ],
+  "packageName": "@cityofzion/wallet-connect-sdk-wallet-core"
+}
diff --git a/packages/wallet-connect-sdk-wallet-core/src/adapters/AbstractWalletConnectEIP155Adapter.ts b/packages/wallet-connect-sdk-wallet-core/src/adapters/AbstractWalletConnectEIP155Adapter.ts
@@ -103,6 +103,17 @@ export abstract class AbstractWalletConnectEIP155Adapter {
     return undefined
   }
 
+  async calculateFee(args: TAdapterMethodParam): Promise<string> {
+    const param = this.resolveParams(args.request.params.request.params[0])
+    const { wallet, provider } = await this.getServices(args)
+    const connectedWallet = wallet.connect(provider)
+
+    const gasPrice = await provider.getGasPrice()
+    const estimated = await connectedWallet.estimateGas(param)
+
+    return ethers.utils.formatEther(gasPrice.mul(estimated))
+  }
+
   abstract getAccountString(args: TAdapterMethodParam): Promise<string>
 
   abstract getRPCUrl(args: TAdapterMethodParam): Promise<string>