EVM Signing | Crossmint Wallet APIs

Prerequisites

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

Signing a Message

React
Node.js
React Native

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

const { wallet } = useWallet();

const evmWallet = EVMWallet.from(wallet);

const signedMessage = await evmWallet.signMessage(message);

Parameters

string

required

The message to sign.

Returns

string

The signature of the message.

const wallet = await crossmintWallets.getWallet(walletLocator);

const evmWallet = EVMWallet.from(wallet);

const signedMessage = await evmWallet.signMessage(message);

Parameters

string

required

The message to sign.

Returns

string

The signature of the message.

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

const { wallet } = useWallet();

const evmWallet = EVMWallet.from(wallet);

const signedMessage = await evmWallet.signMessage(message);

Parameters

string

required

The message to sign.

Returns

string

The signature of the message.

Signing Typed Data

React
Node.js
React Native

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

const { wallet } = useWallet();

const evmWallet = EVMWallet.from(wallet);

const signedMessage = await evmWallet.signTypedData(typedData);

Parameters

TypedData

required

The typed data to sign.

Returns

string

The signature of the message.

const wallet = await crossmintWallets.getWallet(walletLocator);

const evmWallet = EVMWallet.from(wallet);

const signedMessage = await evmWallet.signTypedData(typedData);

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

const { wallet } = useWallet();

const evmWallet = EVMWallet.from(wallet);

const signedMessage = await evmWallet.signTypedData(typedData);

Introduction

Wallets

Authentication

Tokenization (Minting)

Verifiable Credentials

Checkout

EVM

Prerequisites

Signing a Message

Parameters

Returns

Parameters

Returns

Parameters

Returns

Signing Typed Data

Parameters

Returns

​Prerequisites

​Signing a Message

​Parameters

​Returns

​Parameters

​Returns

​Parameters

​Returns

​Signing Typed Data

​Parameters

​Returns

Prerequisites

Signing a Message

Parameters

Returns

Parameters

Returns

Parameters

Returns

Signing Typed Data

Parameters

Returns