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Prerequisites

  • Ensure you have a wallet created.
  • API Key: Ensure you have an API key with the scopes: wallets:signatures.create.

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Signing a Message

import { useWallet, EVMWallet } from '@crossmint/client-sdk-react-ui';

const { wallet } = useWallet();

const evmWallet = EVMWallet.from(wallet);

const signedMessage = await evmWallet.signMessage(message);

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Parameters

​
message
string
required
The message to sign.

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Returns

​
signature
string
The signature of the message.

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Signing Typed Data

import { useWallet, EVMWallet } from '@crossmint/client-sdk-react-ui';

const { wallet } = useWallet();

const evmWallet = EVMWallet.from(wallet);

const signedMessage = await evmWallet.signTypedData(typedData);

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Parameters

​
typedData
TypedData
required
The typed data to sign.

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Returns

​
signature
string
The signature of the message.