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[cookbook] create account #261

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137 changes: 49 additions & 88 deletions content/cookbook/accounts/create-account.mdx
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Original file line number Diff line number Diff line change
Expand Up @@ -11,93 +11,58 @@ access to write to its data or transfer lamports. When creating an account, we
have to preallocate a fixed storage space in bytes (space) and enough lamports
to cover the rent.

<Tabs groupId="language" items={['web3.js v2', 'web3.js v1']}>
<CodeTabs storage="cookbook">

<Tab value="web3.js v2">

```typescript title="create-account.ts"
```typescript !! title="gill"
import {
pipe,
createSolanaRpc,
appendTransactionMessageInstructions,
createSolanaRpcSubscriptions,
createTransactionMessage,
generateKeyPairSigner,
getSignatureFromTransaction,
sendAndConfirmTransactionFactory,
setTransactionMessageFeePayerSigner,
setTransactionMessageLifetimeUsingBlockhash,
createTransaction,
createSolanaClient,
signTransactionMessageWithSigners,
} from "@solana/web3.js";
import { getSetComputeUnitPriceInstruction } from "@solana-program/compute-budget";
getMinimumBalanceForRentExemption,
generateKeyPairSigner,
} from "gill";
import { loadKeypairSignerFromFile } from "gill/node";
import {
getCreateAccountInstruction,
SYSTEM_PROGRAM_ADDRESS,
} from "@solana-program/system";
} from "gill/programs";

const rpc = createSolanaRpc("https://api.devnet.solana.com");
const rpcSubscriptions = createSolanaRpcSubscriptions(
"wss://api.devnet.solana.com",
);

const sendAndConfirmTransaction = sendAndConfirmTransactionFactory({
rpc,
rpcSubscriptions,
const { rpc, sendAndConfirmTransaction } = createSolanaClient({
urlOrMoniker: "devnet",
});

const space = 0n; // any extra space in the account
const rentLamports = await rpc.getMinimumBalanceForRentExemption(space).send();
console.log("Minimum balance for rent exception:", rentLamports);

// todo: load your own signer with SOL
const signer = await generateKeyPairSigner();

// generate a new keypair and address to create
const newAccountKeypair = await generateKeyPairSigner();
console.log("New account address:", newAccountKeypair.address);

const { value: latestBlockhash } = await rpc.getLatestBlockhash().send();

const transactionMessage = pipe(
createTransactionMessage({ version: "legacy" }),
tx => setTransactionMessageFeePayerSigner(signer, tx),
tx => setTransactionMessageLifetimeUsingBlockhash(latestBlockhash, tx),
tx =>
appendTransactionMessageInstructions(
[
// add a priority fee
getSetComputeUnitPriceInstruction({
microLamports: 200_000,
}),
// create the new account
getCreateAccountInstruction({
lamports: rentLamports,
newAccount: newAccountKeypair,
payer: signer,
space: space,
// "wallet" accounts are owned by the system program
programAddress: SYSTEM_PROGRAM_ADDRESS,
}),
],
tx,
),
);
const signer = await loadKeypairSignerFromFile();

const signedTransaction =
await signTransactionMessageWithSigners(transactionMessage);
const signature = getSignatureFromTransaction(signedTransaction);
const newAccount = await generateKeyPairSigner();

await sendAndConfirmTransaction(signedTransaction, {
commitment: "confirmed",
});
console.log("Signature:", signature);
```
const space = 0n; // any extra space in the account

</Tab>
const rentLamports = getMinimumBalanceForRentExemption(space);
// const rentLamports = await rpc.getMinimumBalanceForRentExemption(space).send();

const tx = createTransaction({
version: "legacy",
feePayer: signer,
instructions: [
getCreateAccountInstruction({
lamports: rentLamports,
newAccount: newAccount,
payer: signer,
space: space,
// "wallet" accounts are owned by the system program
programAddress: SYSTEM_PROGRAM_ADDRESS,
}),
],
latestBlockhash,
});

<Tab value="web3.js v1">
const signedTransaction = await signTransactionMessageWithSigners(tx);
await sendAndConfirmTransaction(signedTransaction);
```

```typescript title="create-account.ts"
```typescript !! title="web3.js"
import {
SystemProgram,
Keypair,
Expand All @@ -109,11 +74,13 @@ import {
} from "@solana/web3.js";

const connection = new Connection(clusterApiUrl("devnet"), "confirmed");
const fromPubkey = Keypair.generate();

const fromKeypair = Keypair.generate();
const newAccount = Keypair.generate();

// Airdrop SOL for transferring lamports to the created account
const airdropSignature = await connection.requestAirdrop(
fromPubkey.publicKey,
fromKeypair.publicKey,
LAMPORTS_PER_SOL,
);
await connection.confirmTransaction(airdropSignature);
Expand All @@ -122,20 +89,16 @@ await connection.confirmTransaction(airdropSignature);
const space = 0;

// Seed the created account with lamports for rent exemption
const rentExemptionAmount =
await connection.getMinimumBalanceForRentExemption(space);

const newAccountPubkey = Keypair.generate();
const createAccountParams = {
fromPubkey: fromPubkey.publicKey,
newAccountPubkey: newAccountPubkey.publicKey,
lamports: rentExemptionAmount,
space,
programId: SystemProgram.programId,
};
const rentLamports = await connection.getMinimumBalanceForRentExemption(space);

const createAccountTransaction = new Transaction().add(
SystemProgram.createAccount(createAccountParams),
SystemProgram.createAccount({
fromPubkey: fromKeypair.publicKey,
newAccountPubkey: newAccount.publicKey,
lamports: rentLamports,
space,
programId: SystemProgram.programId,
}),
);

await sendAndConfirmTransaction(connection, createAccountTransaction, [
Expand All @@ -144,6 +107,4 @@ await sendAndConfirmTransaction(connection, createAccountTransaction, [
]);
```

</Tab>

</Tabs>
</CodeTabs>