Skip to main content

UserWallet.signTypedData() method​

Sign a typed data structure (EIP712) with the connected wallet private key

Example​

// This is the message to be signed
// Now we can sign the message with the connected wallet
const { payload, signature } = await sdk.wallet.signTypedData(
  {
    name: "MyEIP721Domain",
    version: "1",
    chainId: 1,
    verifyingContract: "0x...",
  },
  {
    MyStruct: [
      { name: "to", type: "address" },
      { name: "quantity", type: "uint256" },
    ],
  },
  { to: "0x...", quantity: 1 },
);

Signature:

signTypedData(domain: EIP712Domain, types: Record<string, Array<TypedDataField>>, message: Record<string, any>): Promise<{
        payload: any;
        signature: string;
    }>;

Parameters​

ParameterTypeDescription
domainEIP712Domainthe domain as EIP712 standard
typesRecord<string, Array<TypedDataField>>the strcuture and data types as defined by the EIP712 standard
messageRecord<string, any>the data to sign

Returns:

Promise<{ payload: any; signature: string; }>

the payload and its associated signature