useSignTypedData | Alchemy Docs

1 function useSignTypedData(args): UseSignTypedDataResult;

Defined in: account-kit/react/src/hooks/useSignTypedData.ts:72

Similar to useSignMessage, hook for signing typed data, supporting both connected accounts and clients in EIP 712 format.

Uses eth_signTypedData to sign structured, typed data. Accepts typed, complex data structures as input. Like useSignMessage, this hook also handles deployed (1271) and undeployed accounts (6492).

Example

1 import { useSignTypedData, useSmartAccountClient } from "@account-kit/react";
2 const typedData = {
3   types: {
4     Message: [{ name: "content", type: "string" }],
5   },
6   primaryType: "Message",
7   message: { content: "Hello" },
8 };
9 const { client } = useSmartAccountClient({});
10 const {
11   signTypedData,
12   signTypedDataAsync,
13   signedTypedData,
14   isSigningTypedData,
15   error,
16 } = useSignTypedData({
17   client,
18   // these are optional
19   onSuccess: (result) => {
20     // do something on success
21   },
22   onError: (error) => console.error(error),
23 });
24 
25 const result = await signTypedData({ typedData });

Parameters

Parameter	Type	Description
`args`	`UseSignTypedDataArgs`	The arguments for the hook, including client and mutation-related arguments. ref

Returns

UseSignTypedDataResult

An object containing methods and state related to the sign typed data mutation process. ref