solana-rpc-testing/configure/general/solana_utils.ts

41 lines
979 B
TypeScript

import {
Connection,
Keypair,
PublicKey,
SystemProgram,
Transaction,
sendAndConfirmTransaction,
} from "@solana/web3.js";
export async function createAccount(
connection: Connection,
authority: Keypair,
size: number,
owner: PublicKey
): Promise<PublicKey> {
const lamports = await connection.getMinimumBalanceForRentExemption(size);
let address = Keypair.generate();
const transaction = new Transaction().add(
SystemProgram.createAccount({
fromPubkey: authority.publicKey,
newAccountPubkey: address.publicKey,
lamports,
space: size,
programId: owner,
})
);
transaction.feePayer = authority.publicKey;
let hash = await connection.getRecentBlockhash();
transaction.recentBlockhash = hash.blockhash;
// Sign transaction, broadcast, and confirm
await sendAndConfirmTransaction(
connection,
transaction,
[authority, address],
{ commitment: "confirmed" }
);
return address.publicKey;
}