@marinade.finance/native-staking-sdk

Marinade Native Staking SDK

This is SDK for interaction with Marinade Native Staking product.

Staking through this product is done by changing the stake authority of user's stake account(s) for example through this SDK.

Unstaking can be always done by user manually through Solana CLI - but that would be tedious as Marinade splits the user stake accounts into 100+ stake accounts. Marinade accepts requests from users to unstake part or all stake accounts and merge them into a single one, so the user flow is simplified (but Marinade charges a small fee). This is also handled by the SDK.

Overview

• Install and intialize the SDK
• Stake SOL through Marinade Native Staking
• Migrate Stake accounts to Marinade Native Staking
• Prepare for unstake
• Fetch user's stake accounts in Marinade Native Staking
• Show user's rewards

Install and intialize the SDK

Install the package:

pnpm i @marinade.finance/native-staking-sdk

Initialize the SDK:

import { Connection } from '@solana/web3.js'
import { NativeStakingConfig, NativeStakingSDK } from '@marinade.finance/native-staking-sdk'

const config = new NativeStakingConfig({ connection: new Connection('...') })
const sdk = new NativeStakingSDK(config)

Stake SOL through Marinade Native Staking

const { connection } = useConnection() // from @solana/wallet-adapter-react
const { sendTransaction, signTransaction, publicKey } = useWallet() // from @solana/wallet-adapter-react
const amount = new BN('1000000000') // 1 SOL

const { createAuthorizedStake, stakeKeypair } = sdk.buildCreateAuthorizedStakeInstructions(publicKey, amount)

const { blockhash } = await connection.getLatestBlockhash()
const versionedMessage = ;
const tx = new VersionedTransaction(new TransactionMessage({
    payerKey: publicKey,
    recentBlockhash: blockhash,
    instructions: createAuthorizedStake,
}).compileToV0Message())

tx.sign([stakeKeypair]) // add signature of the stake account
await signTransaction(tx) // add signature of the user
await sendTransaction(tx, connection)

Migrate Stake accounts to Marinade Native Staking

const { connection } = useConnection() // from @solana/wallet-adapter-react
const { sendTransaction, signTransaction, publicKey } = useWallet() // from @solana/wallet-adapter-react
const stakeAccount = new PublicKey('...') // stake account to migrate

const authorizeInstructions = sdk.buildAuthorizeInstructions(publicKey, [stakeAccount])

const { blockhash } = await connection.getLatestBlockhash()
const versionedMessage = ;
const tx = new VersionedTransaction(new TransactionMessage({
    payerKey: publicKey,
    recentBlockhash: blockhash,
    instructions: authorizeInstructions,
}).compileToV0Message())

await signTransaction(tx) // add signature of the user
await sendTransaction(tx, connection)

Prepare for unstake

const { connection } = useConnection() // from @solana/wallet-adapter-react
const { sendTransaction, signTransaction, publicKey } = useWallet() // from @solana/wallet-adapter-react
const amount = new BN('1000000000') // 1 SOL

const { payFees, onPaid } = await sdk.initPrepareForRevoke(publicKey, amount) // pass `null` instead of `amount` to prepare everything for unstake

// sdk.config.prepareForRevokeCost - fee in lamports

const { blockhash } = await connection.getLatestBlockhash()
const tx = new VersionedTransaction(new TransactionMessage({
    payerKey: publicKey,
    recentBlockhash: blockhash,
    instructions: payFees,
}).compileToV0Message())

await signTransaction(tx) // add signature of the user
const signature = await sendTransaction(tx, connection)

await connection.confirmTransaction(signature, 'finalized') // wait for the payment to go through
await onPaid(signature) // notify our BE that the user has paid, so we can prepare some/all stake accounts (based on the input amount) to be merged them into a single stake account (at the beginning of the next epoch), so the SOL can be easily withdrawn (or stake account claimed if it is Locked).

Fetch user's stake accounts in Marinade Native Staking

const { publicKey } = useWallet() // from @solana/wallet-adapter-react
await sdk.getStakeAccounts(publicKey) // fetches stake accounts ready to be revoked, stake acccount that are being prepared to be revoked, stake accounts that Marinade manages

Show user's rewards

const { publicKey } = useWallet() // from @solana/wallet-adapter-react
await sdk.fetchRewards(publicKey) // fetches rewards of user's stake accounts in the Marinade Native Staking (note: apy will be `null` if there are no active stake accounts yet)