41 lines
1.0 KiB
JavaScript
41 lines
1.0 KiB
JavaScript
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// @flow
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import * as BufferLayout from 'buffer-layout';
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import type {Blockhash} from './blockhash';
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import * as Layout from './layout';
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import {PublicKey} from './publickey';
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/**
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* See https://github.com/solana-labs/solana/blob/0ea2843ec9cdc517572b8e62c959f41b55cf4453/sdk/src/nonce_state.rs#L29-L32
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*
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* @private
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*/
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const NonceAccountLayout = BufferLayout.struct([
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BufferLayout.u32('state'),
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Layout.publicKey('authorizedPubkey'),
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Layout.publicKey('hash'),
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]);
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/**
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* NonceAccount class
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*/
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export class NonceAccount {
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authorizedPubkey: PublicKey;
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nonce: Blockhash;
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/**
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* Deserialize NonceAccount from the account data.
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*
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* @param buffer account data
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* @return NonceAccount
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*/
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static fromAccountData(buffer: Buffer): NonceAccount {
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const nonceAccount = NonceAccountLayout.decode(buffer, 0);
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nonceAccount.authorizedPubkey = new PublicKey(
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nonceAccount.authorizedPubkey,
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);
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nonceAccount.nonce = new PublicKey(nonceAccount.nonce).toString();
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return nonceAccount;
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}
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}
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