lainhathoang’s gists

lainhathoang / bundles.rs

Created August 20, 2025 09:09

	use base64::{Engine, engine::general_purpose};
	use jito_sdk_rust::JitoJsonRpcSDK;
	use reqwest::Client;
	use serde_json::json;
	use solana_client::nonblocking::rpc_client::RpcClient;
	use solana_sdk::{
	pubkey::Pubkey,
	signature::Keypair,
	signer::{EncodableKey, Signer},
	system_instruction::transfer,

lainhathoang / student-template.csv

Last active September 17, 2025 07:27

studentId	name	email	address	dateOfBirth	sex
1520264	Lại Nhật Hoàng	[email protected]	Gfvy84sLYxknKwoWos2bcBGdViwxjRM4UQh6zezJeESC	2001-09-12	MALE
152864	Nguyễn Ngọc Long	[email protected]	3eKGfsRifMfLeHuhcLrjJWnF5fq7B3CfumkLcVPmhfht	2001-05-04	MALE
71264	Ngô Vũ Công Hậu	[email protected]	BZ3Tdb12if3fhoTVEjC5wRXymv91asitQJFg5G8h664P	1998-11-13	MALE
71264	Ngô Vũ Công Hậu	[email protected]	BZ3Tdb12if3fhoTVEjC5wRXymv91asitQJFg5G8h664P	1998-11-13	MALE
12364	Vũ Trung Kiên	[email protected]	46SKB1VPyuVgAxeQGWg7aqEznunZGK31iw8BJ8Z8SrEZ	2001-01-01	MALE
45664	Phạm Đức Hoàng	[email protected]	HeDfoSZRqJ4YKWTKdKJ2Ey9YcDVCM6dgNNbANL7WQh4K	2001-01-01	MALE

lainhathoang / MyNFT.sol

Created February 16, 2025 07:02

	// SPDX-License-Identifier: MIT
	// Compatible with OpenZeppelin Contracts ^5.0.0
	pragma solidity =0.8.20;

	import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
	import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol";
	import "@openzeppelin/contracts/token/ERC721/extensions/ERC721URIStorage.sol";
	import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Pausable.sol";
	import "@openzeppelin/contracts/access/Ownable.sol";
	import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Burnable.sol";

lainhathoang / SchoolRecords.sol

Last active January 10, 2025 17:21

	// SPDX-License-Identifier: MIT
	pragma solidity ^0.8.0;

	contract StudentManagement {
	// Custom errors
	error StudentAlreadyExists(uint256 mssv); // Lỗi khi sinh viên đã tồn tại
	error StudentNotFound(uint256 mssv); // Lỗi khi sinh viên không tồn tại
	error InvalidGrade(uint256 diem); // Lỗi khi điểm không hợp lệ
	error CourseNotCompleted(uint256 maMonHoc); // Lỗi khi môn học chưa hoàn thành
	error NotOwner(address caller); // Lỗi khi người gọi không phải là owner

lainhathoang / erc721.sol

Created January 2, 2025 17:42

	// SPDX-License-Identifier: MIT
	pragma solidity ^0.8.20;

	import "@openzeppelin/[email protected]/token/ERC721/ERC721.sol";
	import "@openzeppelin/[email protected]/token/ERC721/extensions/ERC721URIStorage.sol";
	import "@openzeppelin/[email protected]/token/ERC721/extensions/ERC721Burnable.sol";
	import "@openzeppelin/[email protected]/access/Ownable.sol";

	contract MyToken is ERC721, ERC721URIStorage, ERC721Burnable, Ownable {
	constructor(address initialOwner)

lainhathoang / upiter-swap-ix-w-si-payload.ts

Created November 13, 2024 10:15

	import {
	AddressLookupTableAccount,
	Connection,
	Keypair,
	PublicKey,
	TransactionInstruction,
	TransactionMessage,
	VersionedTransaction,
	} from "@solana/web3.js";
	import axios from "axios";

lainhathoang / jupiter-swap-ix-w-si.ts

Last active November 12, 2024 04:55

	import {
	AddressLookupTableAccount,
	Connection,
	Keypair,
	PublicKey,
	TransactionInstruction,
	TransactionMessage,
	VersionedTransaction,
	} from "@solana/web3.js";
	import axios from "axios";

lainhathoang / swap-ix

Created November 11, 2024 09:08

	import {
	AddressLookupTableAccount,
	Connection,
	Keypair,
	PublicKey,
	TransactionInstruction,
	TransactionMessage,
	VersionedTransaction,
	} from "@solana/web3.js";
	import axios from "axios";

lainhathoang / final.ts

Created November 8, 2024 10:19

	import {
	AddressLookupTableAccount,
	Connection,
	Keypair,
	PublicKey,
	Transaction,
	TransactionInstruction,
	TransactionMessage,
	VersionedTransaction,
	} from "@solana/web3.js";

lainhathoang / swap-instruction-src.ts

Created November 7, 2024 09:49