Sign typed data (#20)

scaffold-eth · Jun 1, 2024 · 4150e8c · 4150e8c
1 parent 2745fbb
commit 4150e8c
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diff --git a/.changeset/smooth-seas-act.md b/.changeset/smooth-seas-act.md
@@ -0,0 +1,5 @@
+---
+"burner-connector": patch
+---
+
+Adds possibility to sign typed data
diff --git a/packages/burner-connector/src/burnerConnector/burner.ts b/packages/burner-connector/src/burnerConnector/burner.ts
@@ -1,4 +1,4 @@
-import { createConnector, normalizeChainId } from "@wagmi/core";
+import { createConnector, normalizeChainId, type SignTypedDataParameters } from "@wagmi/core";
 import type { EIP1193RequestFn, Hex, SendTransactionParameters, Transport, WalletRpcSchema } from "viem";
 import {
   http,
@@ -96,6 +96,15 @@ export const burner = () => {
           return signature;
         }
 
+        if (method === "eth_signTypedData_v4") {
+          // first param is address of the signer
+          // second param is stringified typed data
+          const stringifiedData = (params as [`0x${string}`, string])[1];
+          const signature = await client.signTypedData(JSON.parse(stringifiedData) as SignTypedDataParameters);
+
+          return signature;
+        }
+
         if (method === "eth_accounts") {
           return [burnerAccount.address];
         }