createKeyPairSignerFromBytes

function createKeyPairSignerFromBytes(
    bytes,
    extractable?,
): Promise<KeyPairSigner<string>>;

Creates a new KeyPairSigner from a 64-bytes Uint8Array secret key (private key and public key).

Parameters

Parameter	Type
`bytes`	`ReadonlyUint8Array`
`extractable?`	`boolean`

Returns

Promise<KeyPairSigner<string>>

Example

import fs from 'fs';
import { createKeyPairSignerFromBytes } from '@solana/signers';
 
// Get bytes from local keypair file.
const keypairFile = fs.readFileSync('~/.config/solana/id.json');
const keypairBytes = new Uint8Array(JSON.parse(keypairFile.toString()));
 
// Create a KeyPairSigner from the bytes.
const signer = await createKeyPairSignerFromBytes(keypairBytes);

See

createKeyPairSignerFromPrivateKeyBytes if you only have the 32-bytes private key instead.
writeKeyPairSigner — the inverse helper that persists a signer's key pair to disk in the same format.