Set Authority Instructions

Changes the authority of a mint or account. This allows transferring ownership or updating specific authority types.

Before we can mint any token, we'll need to already have:

Initialized a Mint account which we hold the mintAuthority or freezeAuthority
Initialized a Token account or Associated Token account that we own

Raw Instruction

By using just "raw" instruction without any abstraction, this is how changing the authority of a Mint or Token account would look like:

const changeTokenAuthorityInstruction = createSetAuthorityInstruction(
    tokenAccount // account
    keypair.publickey // current authority
    AuthorityType.AccountOwner
    newAuthority.publiKey // new authority
);
 
const changeMintFreezeAuthorityInstruction = createSetAuthorityInstruction(
    mint // account
    keypair.publickey // current authority
    AuthorityType.FreezeAccount
    newAuthority.publiKey // new authority
);
 
const changeMintAuthorityInstruction = createSetAuthorityInstruction(
    mint // account
    keypair.publickey // current authority
    AuthorityType.MintTokens
    newAuthority.publiKey // new authority
);
 
const transaction = new Transaction().add(
    changeTokenAuthorityInstruction,
    changeMintFreezeAuthorityInstruction,
    changeMintAuthorityInstruction
);
 
const signature = await sendAndConfirmTransaction(connection, transaction, [keypair]);
 
console.log(`Token and Mint authority changed! Check out your TX here: https://explorer.solana.com/tx/${signature}?cluster=devnet`);

Abstracted Instruction

This is how the same instructions would look like abstracted away with the setAuthority() instruction:

let tx = await setAuthority(
    connection,
    keypair,
    tokenAccount // account
    keypair.publickey // current authority
    AuthorityType.AccountOwner
    newAuthority.publiKey // new authority
);
 
console.log(`Token Account Authority Changed!. Transaction Here: https://explorer.solana.com/tx/${tx}?cluster=devnet`)
 
let tx = await setAuthority(
    connection,
    keypair,
    mint // account
    keypair.publickey // current authority
    AuthorityType.FreezeAccount
    newAuthority.publiKey // new authority
);
 
console.log(`Mint Freeze Authority Changed!. Transaction Here: https://explorer.solana.com/tx/${tx}?cluster=devnet`)
 
let tx = await setAuthority(
    connection,
    keypair,
    mint // account
    keypair.publickey // current authority
    AuthorityType.MintTokens
    newAuthority.publiKey // new authority
);
 
console.log(`Mint Authority Changed!. Transaction Here: https://explorer.solana.com/tx/${tx}?cluster=devnet`)

SPL Token with Web3.js

Set Authority Instructions

Raw Instruction

Abstracted Instruction