54 lines
1.4 KiB
JavaScript
54 lines
1.4 KiB
JavaScript
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import { VersionedTransaction } from "@solana/web3.js"
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/**
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* Stake SOL with Jup validator
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* @param agent SolanaAgentKit instance
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* @param amount Amount of SOL to stake
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* @returns Transaction signature
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*/
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export async function stakeWithJup(agent, amount) {
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try {
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const res = await fetch(
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`https://worker.jup.ag/blinks/swap/So11111111111111111111111111111111111111112/jupSoLaHXQiZZTSfEWMTRRgpnyFm8f6sZdosWBjx93v/${amount}`,
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{
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method: "POST",
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headers: {
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"Content-Type": "application/json"
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},
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body: JSON.stringify({
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account: agent.wallet.publicKey.toBase58()
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})
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}
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)
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const data = await res.json()
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const txn = VersionedTransaction.deserialize(
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Buffer.from(data.transaction, "base64")
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)
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const { blockhash, lastValidBlockHeight } = await agent.connection.getLatestBlockhash()
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txn.message.recentBlockhash = blockhash
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// Sign and send transaction
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const signedTx = await agent.wallet.signTransaction(txn)
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const txhash = await agent.connection.sendTransaction(signedTx, {
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preflightCommitment: "confirmed",
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maxRetries: 3
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})
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await agent.connection.confirmTransaction({
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txhash,
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blockhash: blockhash,
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lastValidBlockHeight: lastValidBlockHeight
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})
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console.log(txhash);
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return txhash
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} catch (error) {
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console.error(error)
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throw new Error(`jupSOL staking failed: ${error.message}`)
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}
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}
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