Token Program

Token Program A Token program on the Huione blockchain.

This program defines a common implementation for Fungible and Non Fungible tokens.

Source

The Token Program's source is available on github

Interface

The Token Program is written in Rust and available on crates.io and docs.rs.

Auto-generated C bindings are also available here

JavaScript bindings are available that support loading the Token Program on to a chain and issue instructions.

See the PPL Associated Token Account program for convention around wallet address to token account mapping and funding.

Reference Guide

Setup

The hpl-token command-line utility can be used to experiment with HPL tokens. Once you have Rust installed, run:

$ cargo install hpl-token-cli

Run hpl-token --help for a full description of available commands.

Configuration

The hpl-token configuration is shared with the Huione command-line tool.

Current Configuration

$ huione config get
Config File: ${HOME}/.config/huione/cli/config.yml
RPC URL: https://rpc-test.huione.org:8889
WebSocket URL: wss://rpc-test.huione.org:8889 (computed)
Keypair Path: ${HOME}/.config/huione/id.json

Cluster RPC URL

See Huione clusters for cluster-specific RPC URLs

$ huione config set --url https://rpc-test.huione.org:8889

Default Keypair

See Keypair conventions for information on how to setup a keypair if you don't already have one.

Keypair File

$ huione config set --keypair ${HOME}/new-keypair.json

Hardware Wallet URL (See URL spec)

$ huione config set --keypair usb://ledger/

Yarn

yarn add @huione/hpl-token

npm

npm install @huione/hpl-token

Configuration

You can connect to different clusters using Connection in @huione/web3.js

const web3 = require('@huione/web3.js');
const connection = new web3.Connection(web3.clusterApiUrl('localhost'), 'confirmed');

Keypair

You can either get your keypair using Keypair from @huione/web3.js, or let the user's wallet handle the keypair and use sendTransaction from wallet-adapter

Airdrop huione

Creating tokens and accounts requires Huione for account rent deposits and transaction fees. If the cluster you are targeting offers a faucet, you can get a little Huione for testing:

$ huione airdrop 1

import { clusterApiUrl, Connection, Keypair, LAMPORTS_PER_HUIONE } from '@huione/web3.js';

const payer = Keypair.generate();

const connection = new Connection(
  clusterApiUrl('localhost'),
  'confirmed'
);

const airdropSignature = await connection.requestAirdrop(
  payer.publicKey,
  LAMPORTS_PER_HUIONE,
);

await connection.confirmTransaction(airdropSignature);

Example: Creating your own fungible token

$ hpl-token create-token
Creating token AQoKYV7tYpTrFZN6P5oUufbQKAUr9mNYGe1TTJC9wajM
Signature: 47hsLFxWRCg8azaZZPSnQR8DNTRsGyPNfUK7jqyzgt7wf9eag3nSnewqoZrVZHKm8zt3B6gzxhr91gdQ5qYrsRG4

 import { createMint } from '@huione/hpl-token'; 
 import { clusterApiUrl, Connection, Keypair, LAMPORTS_PER_PUT } from '@huione/web3.js';
 
const payer = Keypair.generate();
const mintAuthority = Keypair.generate();
const freezeAuthority = Keypair.generate();

const connection = new Connection(
  clusterApiUrl('localhost'),
  'confirmed'
);

const mint = await createMint(
  connection,
  payer,
  mintAuthority.publicKey,
  freezeAuthority.publicKey,
  9 // We are using 9 to match the CLI decimal default exactly
);

console.log(mint.toBase58());
// AQoKYV7tYpTrFZN6P5oUufbQKAUr9mNYGe1TTJC9wajM

The unique identifier of the token is AQoKYV7tYpTrFZN6P5oUufbQKAUr9mNYGe1TTJC9wajM.

Tokens when initially created by hpl-token have no supply:

$ hpl-token supply AQoKYV7tYpTrFZN6P5oUufbQKAUr9mNYGe1TTJC9wajM
0

Let's mint some.

First create an account to hold a balance of the new AQoKYV7tYpTrFZN6P5oUufbQKAUr9mNYGe1TTJC9wajM token:

$ hpl-token create-account AQoKYV7tYpTrFZN6P5oUufbQKAUr9mNYGe1TTJC9wajM
Creating account 7UX2i7SucgLMQcfZ75s3VXmZZY4YRUyJN9X1RgfMoDUi
Signature: 42Sa5eK9dMEQyvD9GMHuKxXf55WLZ7tfjabUKDhNoZRAxj9MsnN7omriWMEHXLea3aYpjZ862qocRLVikvkHkyfy

const tokenAccount = await getOrCreateAssociatedTokenAccount( 
  connection, payer, mint, payer.publicKey )
  
console.log(tokenAccount.address.toBase58()); 
// 7UX2i7SucgLMQcfZ75s3VXmZZY4YRUyJN9X1RgfMoDUi

7UX2i7SucgLMQcfZ75s3VXmZZY4YRUyJN9X1RgfMoDUi is now an empty account:

$ hpl-token balance AQoKYV7tYpTrFZN6P5oUufbQKAUr9mNYGe1TTJC9wajM
0

const tokenAccountInfo = await getAccount(
  connection,
  tokenAccount.address
)

console.log(tokenAccountInfo.amount);
// 0

Mint 100 tokens into the account:

$ hpl-token mint AQoKYV7tYpTrFZN6P5oUufbQKAUr9mNYGe1TTJC9wajM 100
Minting 100 tokens
  Token: AQoKYV7tYpTrFZN6P5oUufbQKAUr9mNYGe1TTJC9wajM
  Recipient: 7UX2i7SucgLMQcfZ75s3VXmZZY4YRUyJN9X1RgfMoDUi
Signature: 41mARH42fPkbYn1mvQ6hYLjmJtjW98NXwd6pHqEYg9p8RnuoUsMxVd16RkStDHEzcS2sfpSEpFscrJQn3HkHzLaa

await mintTo(
  connection,
  payer,
  mint,
  tokenAccount.address,
  mintAuthority,
  100000000000 // because decimals for the mint are set to 9 
)

The token supply and account balance now reflect the result of minting:

$ hpl-token supply AQoKYV7tYpTrFZN6P5oUufbQKAUr9mNYGe1TTJC9wajM
100

$ hpl-token balance AQoKYV7tYpTrFZN6P5oUufbQKAUr9mNYGe1TTJC9wajM
100

const mintInfo = await getMint(
  connection,
  mint
)

console.log(mintInfo.supply);
// 100

const tokenAccountInfo = await getAccount(
  connection,
  tokenAccount.address
)

console.log(tokenAccountInfo.amount);
// 100

Example: View all Tokens that you own

$ hpl-token accounts
Token                                         Balance
------------------------------------------------------------
7e2X5oeAAJyUTi4PfSGXFLGhyPw2H8oELm1mx87ZCgwF  84
AQoKYV7tYpTrFZN6P5oUufbQKAUr9mNYGe1TTJC9wajM  100
AQoKYV7tYpTrFZN6P5oUufbQKAUr9mNYGe1TTJC9wajM  0    (Aux-1*)
AQoKYV7tYpTrFZN6P5oUufbQKAUr9mNYGe1TTJC9wajM  1    (Aux-2*)

import {AccountLayout, TOKEN_PROGRAM_ID} from "@huionet/hpl-token";
import {clusterApiUrl, Connection, PublicKey} from "@huione/web3.js";

(async () => {

  const connection = new Connection(clusterApiUrl('localhost'), 'confirmed');

  const tokenAccounts = await connection.getTokenAccountsByOwner(
    new PublicKey('8YLKoCu7NwqHNS8GzuvA2ibsvLrsg22YMfMDafxh1B15'),
    {
      programId: TOKEN_PROGRAM_ID,
    }
  );

  console.log("Token                                         Balance");
  console.log("------------------------------------------------------------");
  tokenAccounts.value.forEach((tokenAccount) => {
    const accountData = AccountLayout.decode(tokenAccount.account.data);
    console.log(`${new PublicKey(accountData.mint)}   ${accountData.amount}`);
  })

})();

/*
Token                                         Balance
------------------------------------------------------------
7e2X5oeAAJyUTi4PfSGXFLGhyPw2H8oELm1mx87ZCgwF  84
AQoKYV7tYpTrFZN6P5oUufbQKAUr9mNYGe1TTJC9wajM  100
AQoKYV7tYpTrFZN6P5oUufbQKAUr9mNYGe1TTJC9wajM  0
AQoKYV7tYpTrFZN6P5oUufbQKAUr9mNYGe1TTJC9wajM  1
*/

Example: Wrapping Huione in a Token

When you want to wrap Huione, you can send Huione to an associated token account on the native mint and call syncNative. syncNative updates the amount field on the token account to match the amount of wrapped Huione available.

That Huione is only retrievable by closing the token account and choosing the desired address to send the token account's lamports.

$ hpl-token wrap 1
Wrapping 1 HC into GJTxcnA5Sydy8YRhqvHxbQ5QNsPyRKvzguodQEaShJje
Signature: 4f4s5QVMKisLS6ihZcXXPbiBAzjnvkBcp2A7KKER7k9DwJ4qjbVsQBKv2rAyBumXC1gLn8EJQhwWkybE4yJGnw2Y


import {NATIVE_MINT, createAssociatedTokenAccountInstruction, getAssociatedTokenAddress, createSyncNativeInstruction, getAccount} from "@huione/hpl-token";
import {clusterApiUrl, Connection, Keypair, LAMPORTS_PER_PUT, SystemProgram, Transaction, sendAndConfirmTransaction} from "@huione/web3.js";

(async () => {

const connection = new Connection(clusterApiUrl('localhost'), 'confirmed');

const wallet = Keypair.generate();

const airdropSignature = await connection.requestAirdrop(
  wallet.publicKey,
  2 * LAMPORTS_PER_HC,
);

await connection.confirmTransaction(airdropSignature);

const associatedTokenAccount = await getAssociatedTokenAddress(
  NATIVE_MINT,
  wallet.publicKey
)

// Create token account to hold your wrapped HC
const ataTransaction = new Transaction()
  .add(
    createAssociatedTokenAccountInstruction(
      wallet.publicKey,
      associatedTokenAccount,
      wallet.publicKey,
      NATIVE_MINT
    )
  );

await sendAndConfirmTransaction(connection, ataTransaction, [wallet]);

// Transfer HC to associated token account and use SyncNative to update wrapped HC balance
const solTransferTransaction = new Transaction()
  .add(
    SystemProgram.transfer({
        fromPubkey: wallet.publicKey,
        toPubkey: associatedTokenAccount,
        lamports: LAMPORTS_PER_HC
      }),
      createSyncNativeInstruction(
        associatedTokenAccount
    )
  )

await sendAndConfirmTransaction(connection, solTransferTransaction, [wallet]);

const accountInfo = await getAccount(connection, associatedTokenAccount);

console.log(`Native: ${accountInfo.isNative}, Lamports: ${accountInfo.amount}`);

})();

To unwrap the Token back to Huione:

$ hpl-token unwrap GJTxcnA5Sydy8YRhqvHxbQ5QNsPyRKvzguodQEaShJje
Unwrapping GJTxcnA5Sydy8YRhqvHxbQ5QNsPyRKvzguodQEaShJje
  Amount: 1 HC
  Recipient: vines1vzrYbzLMRdu58ou5XTby4qAqVRLmqo36NKPTg
Signature: f7opZ86ZHKGvkJBQsJ8Pk81v8F3v1VUfyd4kFs4CABmfTnSZK5BffETznUU3tEWvzibgKJASCf7TUpDmwGi8Rmh

const walletBalance = await connection.getBalance(wallet.publicKey);

console.log(`Balance before unwrapping 1 WHC: ${walletBalance}`)

await closeAccount(connection, wallet, associatedTokenAccount, wallet.publicKey, wallet);

const walletBalancePostClose = await connection.getBalance(wallet.publicKey);

console.log(`Balance after unwrapping 1 WHC: ${walletBalancePostClose}`)

/*
Balance before unwrapping 1 WHC: 997950720
Balance after unwrapping 1 WHC: 1999985000
*/

Note: Some lamports were removed for transaction fees

Example: Transferring tokens to another user

First the receiver uses hpl-token create-account to create their associated token account for the Token type.

Then the receiver obtains their wallet address by running Huione address and provides it to the sender.

The sender then runs:

$ hpl-token transfer AQoKYV7tYpTrFZN6P5oUufbQKAUr9mNYGe1TTJC9wajM 50 vines1vzrYbzLMRdu58ou5XTby4qAqVRLmqo36NKPTg
Transfer 50 tokens
  Sender: 7UX2i7SucgLMQcfZ75s3VXmZZY4YRUyJN9X1RgfMoDUi
  Recipient: vines1vzrYbzLMRdu58ou5XTby4qAqVRLmqo36NKPTg
  Recipient associated token account: F59618aQB8r6asXeMcB9jWuY6NEx1VduT9yFo1GTi1ks

Signature: 5a3qbvoJQnTAxGPHCugibZTbSu7xuTgkxvF4EJupRjRXGgZZrnWFmKzfEzcqKF2ogCaF4QKVbAtuFx7xGwrDUcGd

import { clusterApiUrl, Connection, Keypair, LAMPORTS_PER_PUT } from '@huione/web3.js';
import { createMint, getOrCreateAssociatedTokenAccount, mintTo, transfer } from '@huione/hpl-token';

(async () => {
    // Connect to cluster
    const connection = new Connection(clusterApiUrl('localhost'), 'confirmed');

    // Generate a new wallet keypair and airdrop HC
    const fromWallet = Keypair.generate();
    const fromAirdropSignature = await connection.requestAirdrop(fromWallet.publicKey, LAMPORTS_PER_HC);

    // Wait for airdrop confirmation
    await connection.confirmTransaction(fromAirdropSignature);

    // Generate a new wallet to receive newly minted token
    const toWallet = Keypair.generate();

    // Create new token mint
    const mint = await createMint(connection, fromWallet, fromWallet.publicKey, null, 9);

    // Get the token account of the fromWallet address, and if it does not exist, create it
    const fromTokenAccount = await getOrCreateAssociatedTokenAccount(
        connection,
        fromWallet,
        mint,
        fromWallet.publicKey
    );

    // Get the token account of the toWallet address, and if it does not exist, create it
    const toTokenAccount = await getOrCreateAssociatedTokenAccount(connection, fromWallet, mint, toWallet.publicKey);

    // Mint 1 new token to the "fromTokenAccount" account we just created
    let signature = await mintTo(
        connection,
        fromWallet,
        mint,
        fromTokenAccount.address,
        fromWallet.publicKey,
        1000000000
    );
    console.log('mint tx:', signature);

    // Transfer the new token to the "toTokenAccount" we just created
    signature = await transfer(
        connection,
        fromWallet,
        fromTokenAccount.address,
        toTokenAccount.address,
        fromWallet.publicKey,
        50
    );
})();

Example: Transferring tokens to another user, with sender-funding

If the receiver does not yet have an associated token account, the sender may choose to fund the receiver's account.

The receiver obtains their wallet address by running huione address and provides it to the sender.

The sender then runs to fund the receiver's associated token account, at the sender's expense, and then transfers 50 tokens into it:

$ hpl-token transfer --fund-recipient AQoKYV7tYpTrFZN6P5oUufbQKAUr9mNYGe1TTJC9wajM 50 vines1vzrYbzLMRdu58ou5XTby4qAqVRLmqo36NKPTg
Transfer 50 tokens
  Sender: 7UX2i7SucgLMQcfZ75s3VXmZZY4YRUyJN9X1RgfMoDUi
  Recipient: vines1vzrYbzLMRdu58ou5XTby4qAqVRLmqo36NKPTg
  Recipient associated token account: F59618aQB8r6asXeMcB9jWuY6NEx1VduT9yFo1GTi1ks
  Funding recipient: F59618aQB8r6asXeMcB9jWuY6NEx1VduT9yFo1GTi1ks (0.00203928 HC)

Signature: 5a3qbvoJQnTAxGPHCugibZTbSu7xuTgkxvF4EJupRjRXGgZZrnWFmKzfEzcqKF2ogCaF4QKVbAtuFx7xGwrDUcGd

const signature = await transfer(
    connection,
    toWallet,
    fromTokenAccount.address,
    toTokenAccount.address,
    fromWallet.publicKey,
    50,
    [fromWallet, toWallet]
);

Example: Transferring tokens to an explicit recipient token account

Tokens may be transferred to a specific recipient token account.

The recipient token account must already exist and be of the same Token type.

$ hpl-token create-account AQoKYV7tYpTrFZN6P5oUufbQKAUr9mNYGe1TTJC9wajM /path/to/auxiliary_keypair.json
Creating account CqAxDdBRnawzx9q4PYM3wrybLHBhDZ4P6BTV13WsRJYJ
Signature: 4yPWj22mbyLu5mhfZ5WATNfYzTt5EQ7LGzryxM7Ufu7QCVjTE7czZdEBqdKR7vjKsfAqsBdjU58NJvXrTqCXvfWW

$ hpl-token accounts AQoKYV7tYpTrFZN6P5oUufbQKAUr9mNYGe1TTJC9wajM -v
Account                                       Token                                         Balance
--------------------------------------------------------------------------------------------------------
7UX2i7SucgLMQcfZ75s3VXmZZY4YRUyJN9X1RgfMoDUi  AQoKYV7tYpTrFZN6P5oUufbQKAUr9mNYGe1TTJC9wajM  100
CqAxDdBRnawzx9q4PYM3wrybLHBhDZ4P6BTV13WsRJYJ  AQoKYV7tYpTrFZN6P5oUufbQKAUr9mNYGe1TTJC9wajM  0    (Aux-1*)

$ hpl-token transfer AQoKYV7tYpTrFZN6P5oUufbQKAUr9mNYGe1TTJC9wajM 50 CqAxDdBRnawzx9q4PYM3wrybLHBhDZ4P6BTV13WsRJYJ
Transfer 50 tokens
  Sender: 7UX2i7SucgLMQcfZ75s3VXmZZY4YRUyJN9X1RgfMoDUi
  Recipient: CqAxDdBRnawzx9q4PYM3wrybLHBhDZ4P6BTV13WsRJYJ

Signature: 5a3qbvoJQnTAxGPHCugibZTbSu7xuTgkxvF4EJupRjRXGgZZrnWFmKzfEzcqKF2ogCaF4QKVbAtuFx7xGwrDUcGd

$ hpl-token accounts AQoKYV7tYpTrFZN6P5oUufbQKAUr9mNYGe1TTJC9wajM -v
Account                                       Token                                         Balance
--------------------------------------------------------------------------------------------------------
7UX2i7SucgLMQcfZ75s3VXmZZY4YRUyJN9X1RgfMoDUi  AQoKYV7tYpTrFZN6P5oUufbQKAUr9mNYGe1TTJC9wajM  50
CqAxDdBRnawzx9q4PYM3wrybLHBhDZ4P6BTV13WsRJYJ  AQoKYV7tYpTrFZN6P5oUufbQKAUr9mNYGe1TTJC9wajM  50  (Aux-1*)


import {getAccount, createMint, createAccount, mintTo, getOrCreateAssociatedTokenAccount, transfer} from "@huione/hpl-token";
import {clusterApiUrl, Connection, Keypair, LAMPORTS_PER_PUT} from "@huione/web3.js";

(async () => {

  const connection = new Connection(clusterApiUrl('localhost'), 'confirmed');

  const wallet = Keypair.generate();
  const auxiliaryKeypair = Keypair.generate();

  const airdropSignature = await connection.requestAirdrop(
    wallet.publicKey,
    LAMPORTS_PER_HC,
  );

  await connection.confirmTransaction(airdropSignature);

  const mint = await createMint(
    connection,
    wallet,
    wallet.publicKey,
    wallet.publicKey,
    9
  );

  // Create custom token account
  const auxiliaryTokenAccount = await createAccount(
    connection,
    wallet,
    mint,
    wallet.publicKey,
    auxiliaryKeypair
  );

  const associatedTokenAccount = await getOrCreateAssociatedTokenAccount(
    connection,
    wallet,
    mint,
    wallet.publicKey
  );

  await mintTo(
    connection,
    wallet,
    mint,
    associatedTokenAccount.address,
    wallet,
    50
  );

  const accountInfo = await getAccount(connection, associatedTokenAccount.address);

  console.log(accountInfo.amount);
  // 50

  await transfer(
    connection,
    wallet,
    associatedTokenAccount.address,
    auxiliaryTokenAccount,
    wallet,
    50
  );

  const auxAccountInfo = await getAccount(connection, auxiliaryTokenAccount);

  console.log(auxAccountInfo.amount);
  // 50
})();

Multisig usage

The main difference in hpl-token command line usage when referencing multisig accounts is in specifying the --owner argument. Typically the signer specified by this argument directly provides a signature granting its authority, but in the multisig case it just points to the address of the multisig account. Signatures are then provided by the multisig signer-set members specified by the --multisig-signer argument.

Multisig accounts can be used for any authority on an HPL Token mint or token account.

Mint account mint authority:hpl-token mint ...,hpl-token authorize ... mint ...
Mint account freeze authority:hpl-token freeze ...,hpl-token thaw ...,hpl-token authorize ... freeze ...
Token account owner authority:hpl-token transfer ...,hpl-token approve ...,hpl-token revoke ...,hpl-token burn ...,hpl-token wrap ...,hpl-token unwrap ...,hpl-token authorize ... owner ...
Token account close authority:hpl-token close ...,hpl-token authorize ... close ...

Example: Mint with multisig authority

First create keypairs to act as the multisig signer-set. In reality, these can be any supported signer, like: a Ledger hardware wallet, a keypair file, or a paper wallet. For convenience, generated keypairs will be used in this example.

$ for i in $(seq 3); do huione-keygen new --no-passphrase -so "signer-${i}.json"; done
Wrote new keypair to signer-1.json
Wrote new keypair to signer-2.json
Wrote new keypair to signer-3.json

const signer1 = Keypair.generate(); 
const signer2 = Keypair.generate(); 
const signer3 = Keypair.generate();

In order to create the multisig account, the public keys of the signer-set must be collected.

$ for i in $(seq 3); 
  do SIGNER="signer-${i}.json"; 
  echo "$SIGNER: 
  $(huione-keygen pubkey "$SIGNER")"; 
done

signer-1.json: BzWpkuRrwXHq4SSSFHa8FJf6DRQy4TaeoXnkA89vTgHZ
signer-2.json: DhkUfKgfZ8CF6PAGKwdABRL1VqkeNrTSRx8LZfpPFVNY
signer-3.json: D7ssXHrZJjfpZXsmDf8RwfPxe1BMMMmP1CtmX3WojPmG

console.log(signer1.publicKey.toBase58());
console.log(signer2.publicKey.toBase58());
console.log(signer3.publicKey.toBase58());
/*
  BzWpkuRrwXHq4SSSFHa8FJf6DRQy4TaeoXnkA89vTgHZ
  DhkUfKgfZ8CF6PAGKwdABRL1VqkeNrTSRx8LZfpPFVNY
  D7ssXHrZJjfpZXsmDf8RwfPxe1BMMMmP1CtmX3WojPmG
 */

Now the multisig account can be created with the hpl-token create-multisig subcommand. Its first positional argument is the minimum number of signers (M) that must sign a transaction affecting a token/mint account that is controlled by this multisig account. The remaining positional arguments are the public keys of all keypairs allowed (N) to sign for the multisig account. This example will use a "2 of 3" multisig account. That is, two of the three allowed keypairs must sign all transactions.

NOTE: HPL Token Multisig accounts are limited to a signer-set of eleven signers (1 <= N <= 11) and minimum signers must be no more than N (1 <= M <= N)

$ hpl-token create-multisig 2 BzWpkuRrwXHq4SSSFHa8FJf6DRQy4TaeoXnkA89vTgHZ \
DhkUfKgfZ8CF6PAGKwdABRL1VqkeNrTSRx8LZfpPFVNY D7ssXHrZJjfpZXsmDf8RwfPxe1BMMMmP1CtmX3WojPmG

Creating 2/3 multisig 46ed77fd4WTN144q62BwjU2B3ogX3Xmmc8PT5Z3Xc2re
Signature: 2FN4KXnczAz33SAxwsuevqrD1BvikP6LUhLie5Lz4ETt594X8R7yvMZzZW2zjmFLPsLQNHsRuhQeumExHbnUGC9A

const multisigKey = await createMultisig(
  connection,
  payer,
  [
    signer1.publicKey,
    signer2.publicKey,
    signer3.publicKey
  ],
  2
);

console.log(`Created 2/3 multisig ${multisigKey.toBase58()}`);
// Created 2/3 multisig 46ed77fd4WTN144q62BwjU2B3ogX3Xmmc8PT5Z3Xc2re

Next create the token mint and receiving accounts as previously described and set the mint account's minting authority to the multisig account

$ hpl-token create-token
Creating token 4VNVRJetwapjwYU8jf4qPgaCeD76wyz8DuNj8yMCQ62o
Signature: 3n6zmw3hS5Hyo5duuhnNvwjAbjzC42uzCA3TTsrgr9htUonzDUXdK1d8b8J77XoeSherqWQM8mD8E1TMYCpksS2r

$ hpl-token create-account 4VNVRJetwapjwYU8jf4qPgaCeD76wyz8DuNj8yMCQ62o
Creating account EX8zyi2ZQUuoYtXd4MKmyHYLTjqFdWeuoTHcsTdJcKHC
Signature: 5mVes7wjE7avuFqzrmSCWneKBQyPAjasCLYZPNSkmqmk2YFosYWAP9hYSiZ7b7NKpV866x5gwyKbbppX3d8PcE9s

$ hpl-token authorize 4VNVRJetwapjwYU8jf4qPgaCeD76wyz8DuNj8yMCQ62o mint 46ed77fd4WTN144q62BwjU2B3ogX3Xmmc8PT5Z3Xc2re
Updating 4VNVRJetwapjwYU8jf4qPgaCeD76wyz8DuNj8yMCQ62o
  Current mint authority: 5hbZyJ3KRuFvdy5QBxvE9KwK17hzkAUkQHZTxPbiWffE
  New mint authority: 46ed77fd4WTN144q62BwjU2B3ogX3Xmmc8PT5Z3Xc2re
Signature: yy7dJiTx1t7jvLPCRX5RQWxNRNtFwvARSfbMJG94QKEiNS4uZcp3GhhjnMgZ1CaWMWe4jVEMy9zQBoUhzomMaxC

const mint = await createMint(
    connection,
    payer,
    multisigKey,
    multisigKey,
    9
  );

const associatedTokenAccount = await getOrCreateAssociatedTokenAccount(
  connection,
  payer,
  mint,
  signer1.publicKey
);

To demonstrate that the mint account is now under control of the multisig account, attempting to mint with one multisig signer fails

$ hpl-token mint 4VNVRJetwapjwYU8jf4qPgaCeD76wyz8DuNj8yMCQ62o 1 EX8zyi2ZQUuoYtXd4MKmyHYLTjqFdWeuoTHcsTdJcKHC \
--owner 46ed77fd4WTN144q62BwjU2B3ogX3Xmmc8PT5Z3Xc2re \
--multisig-signer signer-1.json

Minting 1 tokens
  Token: 4VNVRJetwapjwYU8jf4qPgaCeD76wyz8DuNj8yMCQ62o
  Recipient: EX8zyi2ZQUuoYtXd4MKmyHYLTjqFdWeuoTHcsTdJcKHC
RPC response error -32002: Transaction simulation failed: Error processing Instruction 0: missing required signature for instruction

try {
  await mintTo(
    connection,
    payer,
    mint,
    associatedTokenAccount.address,
    multisigKey,
    1
  )
} catch (error) {
  console.log(error);
}
// Error: Signature verification failed

But repeating with a second multisig signer, succeeds

$ hpl-token mint 4VNVRJetwapjwYU8jf4qPgaCeD76wyz8DuNj8yMCQ62o 1 EX8zyi2ZQUuoYtXd4MKmyHYLTjqFdWeuoTHcsTdJcKHC \
--owner 46ed77fd4WTN144q62BwjU2B3ogX3Xmmc8PT5Z3Xc2re \
--multisig-signer signer-1.json \
--multisig-signer signer-2.json

Minting 1 tokens
  Token: 4VNVRJetwapjwYU8jf4qPgaCeD76wyz8DuNj8yMCQ62o
  Recipient: EX8zyi2ZQUuoYtXd4MKmyHYLTjqFdWeuoTHcsTdJcKHC
Signature: 2ubqWqZb3ooDuc8FLaBkqZwzguhtMgQpgMAHhKsWcUzjy61qtJ7cZ1bfmYktKUfnbMYWTC1S8zdKgU6m4THsgspT

await mintTo(
  connection,
  payer,
  mint,
  associatedTokenAccount.address,
  multisigKey,
  1,
  [
    signer1,
    signer2
  ]
)

const mintInfo = await getMint(
  connection,
  mint
)

console.log(`Minted ${mintInfo.supply} token`);
// Minted 1 token

Example: Offline signing with multisig

Sometimes online signing is not possible or desireable. Such is the case for example when signers are not in the same geographic location or when they use air-gapped devices not connected to the network. In this case, we use offline signing which combines the previous examples of multisig with offline signing and a nonce account.

This example will use the same mint account, token account, multisig account, and multisig signer-set keypair filenames as the online example, as well as a nonce account that we create here:

$ huione-keygen new -o nonce-keypair.json
...
======================================================================
pubkey: Fjyud2VXixk2vCs4DkBpfpsq48d81rbEzh6deKt7WvPj
======================================================================

$ huione create-nonce-account nonce-keypair.json 1
Signature: 3DALwrAAmCDxqeb4qXZ44WjpFcwVtgmJKhV4MW5qLJVtWeZ288j6Pzz1F4BmyPpnGLfx2P8MEJXmqPchX5y2Lf3r

$ huione nonce-account Fjyud2VXixk2vCs4DkBpfpsq48d81rbEzh6deKt7WvPj
Balance: 0.01 HC
Minimum Balance Required: 0.00144768 HC
Nonce blockhash: 6DPt2TfFBG7sR4Hqu16fbMXPj8ddHKkbU4Y3EEEWrC2E
Fee: 5000 lamports per signature
Authority: 5hbZyJ3KRuFvdy5QBxvE9KwK17hzkAUkQHZTxPbiWffE

const connection = new Connection(
  clusterApiUrl('localhost'),
  'confirmed',
);

const onlineAccount = Keypair.generate();
const nonceAccount = Keypair.generate();

const minimumAmount = await connection.getMinimumBalanceForRentExemption(
  NONCE_ACCOUNT_LENGTH,
);

// Form CreateNonceAccount transaction
const transaction = new Transaction()
  .add(
  SystemProgram.createNonceAccount({
    fromPubkey: onlineAccount.publicKey,
    noncePubkey: nonceAccount.publicKey,
    authorizedPubkey: onlineAccount.publicKey,
    lamports: minimumAmount,
  }),
);

await web3.sendAndConfirmTransaction(connection, transaction, [onlineAccount, nonceAccount])

const nonceAccountData = await connection.getNonce(
  nonceAccount.publicKey,
  'confirmed',
);

console.log(nonceAccountData);
/*
NonceAccount {
  authorizedPubkey: '5hbZyJ3KRuFvdy5QBxvE9KwK17hzkAUkQHZTxPbiWffE'
  nonce: '6DPt2TfFBG7sR4Hqu16fbMXPj8ddHKkbU4Y3EEEWrC2E',
  feeCalculator: { lamportsPerSignature: 5000 }
}
 */

For the fee-payer and nonce-authority roles, a local hot wallet at 5hbZyJ3KRuFvdy5QBxvE9KwK17hzkAUkQHZTxPbiWffE will be used.

First a template command is built by specifying all signers by their public key. Upon running this command, all signers will be listed as "Absent Signers" in the output. This command will be run by each offline signer to generate the corresponding signature.

NOTE: The argument to the --blockhash parameter is the "Nonce blockhash:" field from the designated durable nonce account.

$ hpl-token mint 4VNVRJetwapjwYU8jf4qPgaCeD76wyz8DuNj8yMCQ62o 1 EX8zyi2ZQUuoYtXd4MKmyHYLTjqFdWeuoTHcsTdJcKHC \
--owner 46ed77fd4WTN144q62BwjU2B3ogX3Xmmc8PT5Z3Xc2re \
--multisig-signer BzWpkuRrwXHq4SSSFHa8FJf6DRQy4TaeoXnkA89vTgHZ \
--multisig-signer DhkUfKgfZ8CF6PAGKwdABRL1VqkeNrTSRx8LZfpPFVNY \
--blockhash 6DPt2TfFBG7sR4Hqu16fbMXPj8ddHKkbU4Y3EEEWrC2E \
--fee-payer 5hbZyJ3KRuFvdy5QBxvE9KwK17hzkAUkQHZTxPbiWffE \
--nonce Fjyud2VXixk2vCs4DkBpfpsq48d81rbEzh6deKt7WvPj \
--nonce-authority 5hbZyJ3KRuFvdy5QBxvE9KwK17hzkAUkQHZTxPbiWffE \
--sign-only \
--mint-decimals 9
Minting 1 tokens
  Token: 4VNVRJetwapjwYU8jf4qPgaCeD76wyz8DuNj8yMCQ62o
  Recipient: EX8zyi2ZQUuoYtXd4MKmyHYLTjqFdWeuoTHcsTdJcKHC

Blockhash: 6DPt2TfFBG7sR4Hqu16fbMXPj8ddHKkbU4Y3EEEWrC2E
Absent Signers (Pubkey):
 5hbZyJ3KRuFvdy5QBxvE9KwK17hzkAUkQHZTxPbiWffE
 BzWpkuRrwXHq4SSSFHa8FJf6DRQy4TaeoXnkA89vTgHZ
 DhkUfKgfZ8CF6PAGKwdABRL1VqkeNrTSRx8LZfpPFVNY

First a raw transaction is built using the nonceAccountInformation and tokenAccount key. All signers of the transaction are noted as part of the raw transaction. This transaction will be handed to the signers later for signing.

const nonceAccountInfo = await connection.getAccountInfo(
  nonceAccount.publicKey,
  'confirmed'
);

const nonceAccountFromInfo = web3.NonceAccount.fromAccountData(nonceAccountInfo.data);

console.log(nonceAccountFromInfo);

const nonceInstruction = web3.SystemProgram.nonceAdvance({
  authorizedPubkey: onlineAccount.publicKey,
  noncePubkey: nonceAccount.publicKey
});

const nonce = nonceAccountFromInfo.nonce;

const mintToTransaction = new web3.Transaction({
  feePayer: onlineAccount.publicKey,
  nonceInfo: {nonce, nonceInstruction}
})
  .add(
    createMintToInstruction(
      mint,
      associatedTokenAccount.address,
      multisigkey,
      1,
      [
        signer1,
        onlineAccount
      ],
      TOKEN_PROGRAM_ID
    )
  );

Next each offline signer will take the transaction buffer and sign it with their corresponding key.

let mintToTransactionBuffer = mintToTransaction.serializeMessage();

let onlineSIgnature = nacl.sign.detached(mintToTransactionBuffer, onlineAccount.secretKey);
mintToTransaction.addSignature(onlineAccount.publicKey, onlineSIgnature);

// Handed to offline signer for signature
let offlineSignature = nacl.sign.detached(mintToTransactionBuffer, signer1.secretKey);
mintToTransaction.addSignature(signer1.publicKey, offlineSignature);

let rawMintToTransaction = mintToTransaction.serialize();

Finally, the hot wallet will take the transaction, serialize it, and broadcast it to the network.

// Send to online signer for broadcast to network
await web3.sendAndConfirmRawTransaction(connection, rawMintToTransaction);

JSON RPC methods

There is a rich set of JSON RPC methods available for use with HPL Token:

getTokenAccountBalance
getTokenAccountsByDelegate
getTokenAccountsByOwner
getTokenLargestAccounts
getTokenSupply

See https://docs.huione.org/apps/jsonrpc-api for more details.

Additionally the versatile getProgramAccounts JSON RPC method can be employed in various ways to fetch HPL Token accounts of interest.

Finding all token accounts for a specific mint

To find all token accounts for the TESTpKgj42ya3st2SQTKiANjTBmncQSCqLAZGcPPLGM mint:

curl http://api.mainnet-beta.huione.org -X POST -H "Content-Type: application/json" -d '
  {
    "jsonrpc": "2.0",
    "id": 1,
    "method": "getProgramAccounts",
    "params": [
      "TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA",
      {
        "encoding": "jsonParsed",
        "filters": [
          {
            "dataSize": 165
          },
          {
            "memcmp": {
              "offset": 0,
              "bytes": "TESTpKgj42ya3st2SQTKiANjTBmncQSCqLAZGcPPLGM"
            }
          }
        ]
      }
    ]
  }
'

The "dataSize": 165 filter selects all Token Accounts, and then the "memcmp": ... filter selects based on the mint address within each token account.

Finding all token accounts for a wallet

Find all token accounts owned by the vines1vzrYbzLMRdu58ou5XTby4qAqVRLmqo36NKPTg user:

curl http://api.mainnet-beta.huione.org -X POST -H "Content-Type: application/json" -d '
  {
    "jsonrpc": "2.0",
    "id": 1,
    "method": "getProgramAccounts",
    "params": [
      "TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA",
      {
        "encoding": "jsonParsed",
        "filters": [
          {
            "dataSize": 165
          },
          {
            "memcmp": {
              "offset": 32,
              "bytes": "vines1vzrYbzLMRdu58ou5XTby4qAqVRLmqo36NKPTg"
            }
          }
        ]
      }
    ]
  }
'

The "dataSize": 165 filter selects all Token Accounts, and then the "memcmp": ... filter selects based on the owner address within each token account.

Operational overview

Creating a new token type

A new token type can be created by initializing a new Mint with the InitializeMint instruction. The Mint is used to create or "mint" new tokens, and these tokens are stored in Accounts.

A Mint is associated with each Account, which means that the total supply of a particular token type is equal to the balances of all the associated Accounts.

It's important to note that the InitializeMint instruction does not require the Huione account being initialized also be a signer.

The InitializeMint instruction should be atomically processed with the system instruction that creates the Huione account by including both instructions in the same transaction.

Once a Mint is initialized, the mint_authority can create new tokens using the MintTo instruction.

As long as a Mint contains a valid mint_authority, the Mint is considered to have a non-fixed supply, and the mint_authority can create new tokens with the MintTo instruction at any time.

The SetAuthority instruction can be used to irreversibly set the Mint's authority to None, rendering the Mint's supply fixed.

No further tokens can ever be Minted.

Token supply can be reduced at any time by issuing a Burn instruction which removes and discards tokens from an Account.

Creating accounts

Accounts hold token balances and are created using the InitializeAccount instruction.

Each Account has an owner who must be present as a signer in some instructions.

An Account's owner may transfer ownership of an account to another using the SetAuthority instruction.

It's important to note that the InitializeAccount instruction does not require the Huione account being initialized also be a signer.

The InitializeAccount instruction should be atomically processed with the system instruction that creates the Huione account by including both instructions in the same transaction.

Transferring tokens

Balances can be transferred between Accounts using the Transfer instruction.

The owner of the source Account must be present as a signer in the Transfer instruction when the source and destination accounts are different.

It's important to note that when the source and destination of a Transfer are the same, the Transfer will always succeed.

Therefore, a successful Transfer does not necessarily imply that the involved Accounts were valid PPL Token accounts, that any tokens were moved, or that the source Account was present as a signer.

We strongly recommend that developers are careful about checking that the source and destination are different before invoking a Transfer instruction from within their program.

Burning

The Burn instruction decreases an Account's token balance without transferring to another Account, effectively removing the token from circulation permanently.

There is no other way to reduce supply on chain. This is similar to transferring to an account with unknown private key or destroying a private key.

But the act of burning by using Burn instructions is more explicit and can be confirmed on chain by any parties.

Authority delegation

Account owners may delegate authority over some or all of their token balance using the Approve instruction. Delegated authorities may transfer or burn up to the amount they've been delegated.

Authority delegation may be revoked by the Account's owner via the Revoke instruction.

Multisignatures

M of N multisignatures are supported and can be used in place of Mint authorities or Account owners or delegates.

Multisignature authorities must be initialized with the InitializeMultisig instruction. Initialization specifies the set of N public keys that are valid and the number M of those N that must be present as instruction signers for the authority to be legitimate.

It's important to note that the InitializeMultisig instruction does not require the Huione account being initialized also be a signer.

The InitializeMultisig instruction should be atomically processed with the system instruction that creates the Huione account by including both instructions in the same transaction.

Freezing accounts

The Mint may also contain a freeze_authority which can be used to issue FreezeAccount instructions that will render an Account unusable.

Token instructions that include a frozen account will fail until the Account is thawed using the ThawAccount instruction.

The SetAuthority instruction can be used to change a Mint's freeze_authority. If a Mint's freeze_authority is set to None then account freezing and thawing is permanently disabled and all currently frozen accounts will also stay frozen permanently.

Wrapping Huione

The Token Program can be used to wrap native Huione.

Doing so allows native Huione to be treated like any other Token program token type and can be useful when being called from other programs that interact with the Token Program's interface.

Accounts containing wrapped HC are associated with a specific Mint called the "Native Mint" using the public key So11111111111111111111111111111111111111112.

These accounts have a few unique behaviors

InitializeAccount sets the balance of the initialized Account to the Huione balance of the Huione account being initialized, resulting in a token balance equal to the Huione balance.
Transfers to and from not only modify the token balance but also transfer an equal amount of Huione from the source account to the destination account.
Burning is not supported
When closing an Account the balance may be non-zero.

The Native Mint supply will always report 0, regardless of how much Huione is currently wrapped.

Rent-exemption

To ensure a reliable calculation of supply, a consistency valid Mint, and consistently valid Multisig accounts all Huione accounts holding an Account, Mint, or Multisig must contain enough Huione to be considered rent exempt

Closing accounts

An account may be closed using the CloseAccount instruction. When closing an Account, all remaining Huione will be transferred to another Huione account (doesn't have to be associated with the Token Program). Non-native Accounts must have a balance of zero to be closed.

Wallet Integration Guide

This section describes how to integrate HPL Token support into an existing wallet supporting native Huione. It assumes a model whereby the user has a single system account as their main wallet address that they send and receive Huione from.

Although all HPL Token accounts do have their own address on-chain, there's no need to surface these additional addresses to the user.

There are two programs that are used by the wallet:

HPL Token program: generic program that is used by all HPL Tokens
HPL Associated Token Account program: defines the convention and provides the mechanism for mapping the user's wallet address to the associated token accounts they hold.

How to fetch and display token holdings

The getTokenAccountsByOwner JSON RPC method can be used to fetch all token accounts for a wallet address.

For each token mint, the wallet could have multiple token accounts: the associated token account and/or other ancillary token accounts

By convention it is suggested that wallets roll up the balances from all token accounts of the same token mint into a single balance for the user to shield the user from this complexity.

See the Garbage Collecting Ancillary Token Accounts section for suggestions on how the wallet should clean up ancillary token accounts on the user's behalf.

Associated Token Account

Before the user can receive tokens, their associated token account must be created on-chain, requiring a small amount of Huione to mark the account as rent-exempt.

There's no restriction on who can create a user's associated token account.

It could either be created by the wallet on behalf of the user or funded by a 3rd party through an airdrop campaign.

The creation process is described here.

It's highly recommended that the wallet create the associated token account for a given HPL Token itself before indicating to the user that they are able to receive that HPL Tokens type (typically done by showing the user their receiving address).

A wallet that chooses to not perform this step may limit its user's ability to receive HPL Tokens from other wallets.

Sample "Add Token" workflow

The user should first fund their associated token account when they want to receive HPL Tokens of a certain type to:

Maximize interoperability with other wallet implementations
Avoid pushing the cost of creating their associated token account on the first sender

The wallet should provide a UI that allow the users to "add a token". The user selects the kind of token, and is presented with information about how much Huione it will cost to add the token.

Upon confirmation, the wallet creates the associated token type as the described here.

Sample "Airdrop campaign" workflow

For each recipient wallet addresses, send a transaction containing:

Create the associated token account on the recipient's behalf.
Use TokenInstruction::Transfer to complete the transfer

Associated Token Account Ownership ⚠️ The wallet should never use TokenInstruction::SetAuthority to set the AccountOwner authority of the associated token account to another address.

Ancillary Token Accounts

At any time ownership of an existing HPL Token account may be assigned to the user. One way to accomplish this is with the ppl-token authorize <TOKEN_ADDRESS> owner <USER_ADDRESS> command. Wallets should be prepared to gracefully manage token accounts that they themselves did not create for the user.

Transferring Tokens Between Wallets

The preferred method of transferring tokens between wallets is to transfer into associated token account of the recipient.

The recipient must provide their main wallet address to the sender. The sender then:

Derives the associated token account for the recipient
Fetches the recipient's associated token account over RPC and checks that it exists
If the recipient's associated token account does not yet exist, the sender wallet should create the recipient's associated token account as described here. The sender's wallet may choose to inform the user that as a result of account creation the transfer will require more HC than normal. However a wallet that chooses to not support creating the recipient's associated token account at this time should present a message to the user with enough information to permit them to find a workaround (such as transferring the token through a fully compliant intermediary wallet such as https://www.huione.org/wallet) to allow the users to accomplish their goal
Use TokenInstruction::Transfer to complete the transfer

The sender's wallet must not require that the recipient's main wallet address hold a balance before allowing the transfer.

Registry for token details

At the moment there exist two solutions for Token Mint registries:

hard coded addresses in the wallet or dapp hpl-token-registry package, maintained at https://github.com/huione-labs/token-list A decentralized solution is in progress.

Garbage Collecting Ancillary Token Accounts

Wallets should empty ancillary token accounts as quickly as practical by transferring into the user's associated token account. This effort serves two purposes:

If the user is the close authority for the ancillary account, the wallet can reclaim Huione for the user by closing the account.
If the ancillary account was funded by a 3rd party, once the account is emptied that 3rd party may close the account and reclaim the Huione.

One natural time to garbage collect ancillary token accounts is when the user next sends tokens. The additional instructions to do so can be added to the existing transaction, and will not require an additional fee.

Cleanup Pseudo Steps:

For all non-empty ancillary token accounts, add a TokenInstruction::Transfer instruction to the transfer the full token amount to the user's associated token account.
For all empty ancillary token accounts where the user is the close authority, add a TokenInstruction::CloseAccount instruction

If adding one or more of clean up instructions cause the transaction to exceed the maximum allowed transaction size, remove those extra clean up instructions. They can be cleaned up during the next send operation.

The hpl-token gc command provides an example implementation of this cleanup process.

Token Vesting

There are currently two solutions available for vesting HPL tokens:

Bonfida token-vesting

This program allows you to lock arbitrary HPL tokens and release the locked tokens with a determined unlock schedule. An unlock schedule is made of a unix timestamp and a token amount, when initializing a vesting contract, the creator can pass an array of unlock schedule with an arbitrary size giving the creator of the contract complete control of how the tokens unlock over time.

Unlocking works by pushing a permissionless crank on the contract that moves the tokens to the pre-specified address. The recipient address of a vesting contract can be modified by the owner of the current recipient key, meaning that vesting contract locked tokens can be traded.

Code: https://github.com/Bonfida/token-vesting
UI: https://vesting.bonfida.com/#/
Audit: The audit was conducted by Kudelski, the report can be found here

Streamflow Timelock Enables creation, withdrawal, cancelation and transfer of token vesting contracts using time-based lock and escrow accounts. Contracts are by default cancelable by the creator and transferable by the recipient.

Vesting contract creator chooses various options upon creation, such as:

HPL token and amount to be vested
recipient
exact start and end date
(optional) cliff date and amount
(optional) release frequency

Coming soon:

whether or not a contract is transferable by creator/recipient
whether or not a contract is cancelable by creator/recipient
subject/memo

Resources:

Audit: Reports can be found here and here.
Application with the UI: https://app.streamflow.finance/vesting
JS SDK: https://npmjs.com/@streamflow/timelock (source)
Rust SDK: https://crates.io/crates/streamflow-timelock (source)
Program code: https://github.com/streamflow-finance/timelock

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