Sign messages

You can use the following RPC methods to request cryptographic signatures from users:

Use signMessage

signMessage is used to request human-readable signatures that don't need to be efficiently processed onchain.

Example

The following is an example of using signMessage with MetaMask:

import { createSolanaClient } from '@metamask/connect-solana'

const solanaClient = createSolanaClient()
const provider = solanaClient.getProvider()

async function signMessage() {
  const message = 'Only good humans allowed. Paw-thorize yourself.'
  const encodedMessage = new TextEncoder().encode(message)

  const signature = await provider.request({
    method: 'signMessage',
    params: {
      message: encodedMessage,
      display: 'hex',
    },
  })

  return signature
}