feat: update eip 7702 auth format

alchemyplatform · Feb 7, 2025 · b3acd54 · b3acd54
1 parent 6d6c3db
commit b3acd54
Show file tree

Hide file tree

Showing 3 changed files with 9 additions and 19 deletions.
diff --git a/aa-sdk/core/src/middleware/defaults/7702gasEstimator.ts b/aa-sdk/core/src/middleware/defaults/7702gasEstimator.ts
@@ -1,6 +1,5 @@
-import { zeroHash, toHex } from "viem";
+import { zeroHash } from "viem";
 import { AccountNotFoundError } from "../../errors/account.js";
-import { ChainNotFoundError } from "../../errors/client.js";
 import type { UserOperationStruct } from "../../types.js";
 import type { ClientMiddlewareFn } from "../types";
 import { defaultGasEstimator } from "./gasEstimator.js";
@@ -50,38 +49,29 @@ export const default7702GasEstimator: (
       throw new AccountNotFoundError();
     }
 
-    if (!params.client.chain) {
-      throw new ChainNotFoundError();
-    }
-
     const entryPoint = account.getEntryPoint();
     if (entryPoint.version !== "0.7.0") {
       throw new Error(
         "This middleware is only compatible with EntryPoint v0.7.0"
       );
     }
 
-    // todo: persist this in context so the signer doesn't have to re-fetch.
-    const accountNonce = await params.client.getTransactionCount({
-      address: account.address,
-    });
-
     const implementationAddress = await account.getImplementationAddress();
 
     // Note: does not omit the delegation from estimation if the account is already 7702 delegated.
 
-    (struct as UserOperationStruct<"0.7.0">).eip7702auth = {
-      chainId: toHex(params.client.chain.id),
-      nonce: toHex(accountNonce),
+    (struct as UserOperationStruct<"0.7.0">).eip7702Auth = {
+      chainId: "0x0",
+      nonce: "0x0",
       address: implementationAddress,
-      r: zeroHash,
+      r: zeroHash, // aka `bytes32(0)`
       s: zeroHash,
-      yParity: toHex(0),
+      yParity: "0x0",
     };
 
     const estimatedUO = await gasEstimator_(struct, params);
 
-    estimatedUO.eip7702auth = undefined; // Strip out the auth after estimation.
+    estimatedUO.eip7702Auth = undefined; // Strip out the auth after estimation.
 
     return estimatedUO;
   };
diff --git a/aa-sdk/core/src/middleware/defaults/7702signer.ts b/aa-sdk/core/src/middleware/defaults/7702signer.ts
@@ -92,7 +92,7 @@ export const default7702UserOpSigner: (
 
     return {
       ...uo,
-      eip7702auth: {
+      eip7702Auth: {
         // deepHexlify doesn't encode number(0) correctly, it returns "0x"
         chainId: toHex(client.chain.id),
         nonce: toHex(accountNonce),

diff --git a/aa-sdk/core/src/types.ts b/aa-sdk/core/src/types.ts
@@ -202,7 +202,7 @@ export interface UserOperationRequest_v7 {
 // [!endregion UserOperationRequest_v7]
 
 export type Eip7702ExtendedFields = {
-  eip7702auth?: {
+  eip7702Auth?: {
     chainId: Hex;
     nonce: Hex;
     address: Address;