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Use the signTypedData method exported from the useSignTypedData hook to sign a message with an Ethereum embedded wallet.
signTypedData(input: SignTypedDataParams, options?: SignTypedDataOptions): Promise<{signature: string}>

​
Usage

import {useSignTypedData, useWallets} from '@privy-io/react-auth';

const {signTypedData} = useSignTypedData();
const {wallets} = useWallets();

const {signature} = await signTypedData({...}, {
  address: wallets[0].address // Optional: Specify the wallet to use for signing. If not provided, the first wallet will be used.
});

​
Parameters

​
input
Object
required
The typed data object to sign with the wallet, with the properties defined in EIP-712.
​
options
Object

​
Response

​
signature
string
The signature produced by the wallet.

​
Callbacks

Configure callbacks for signTypedData with the useSignTypedData hook.
import {useSignTypedData} from '@privy-io/react-auth';

const {signTypedData} = useSignTypedData({
  onSuccess: ({signature}) => {
    console.log(signature);
    // Any logic you'd like to execute after a user successfully signs the EIP-712 typed data
  },
  onError: (error) => {
    console.log(error);
    // Any logic you'd like to execute after a user exits the signing flow or there is an error
  }
});

// Then call `signTypedData` in your code, which will invoke these callbacks on completion
As parameters to useSignTypedData, you may include an onSuccess callback and/or an onError callback.While this component is mounted, any invocation of signTypedData will trigger the onSuccess callback or onError callback on completion, depending on if the data was successfully signed or not.

​
onSuccess

If set, the onSuccess callback will execute after a user has successfully signed the message. Within this callback, you can access a signature parameter, which is the signature string value generated by the wallet to sign the data.

​
onError

If set, the onError callback will execute after a user attempts to sign the typed data and there is an error, or if the user exits the signature flow prematurely. Within this callback, you may access an error code with more information about the error.
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