Token Grupları ve Üyeleri

Grup ve Grup Üyesi Uzantıları Nelerdir?

Bir grup, bir koleksiyonu temsil eden bir mint'tir. Bir grup üyesi ise o koleksiyona ait olan bir mint'tir.

Bir mint'in koleksiyonu temsil etmesi ve diğer mint'lerin ona ait öğeleri temsil etmesi gerektiğinde bu uzantıları kullanın.

Token Extensions Program, token grubu verilerini doğrudan bir mint üzerinde dört ilgili uzantı ile depolayabilir:

  • GroupPointer, bir mint'i grubun verilerini depolayan hesaba yönlendirir.
  • TokenGroup, güncelleme yetkisi, mevcut boyut ve maksimum boyut dahil olmak üzere grup verilerinin kendisini depolar.
  • GroupMemberPointer, bir mint'i üyenin verilerini depolayan hesaba yönlendirir.
  • TokenGroupMember, üyenin grup adresini ve üye numarasını depolar.

GroupPointer ve GroupMemberPointer, Token group interface'i uygulayan bir programa ait herhangi bir hesaba referans verebilir.

Token Extensions Program ayrıca bu arayüzü doğrudan TokenGroup ve TokenGroupMember mint uzantıları aracılığıyla uygular.

Mint Hesabında Depolanan Gruplar ve Üyeler Nasıl Oluşturulur

Mint hesabında depolanan gruplar ve üyeler oluşturmak için:

  1. Bir grup mint hesabı oluşturun ve GroupPointer'ı başlatın.
  2. Grup mint'ini InitializeMint ile başlatın.
  3. Aynı mint üzerinde TokenGroup'ı başlatın.
  4. Bir üye mint hesabı oluşturun ve GroupMemberPointer'ı başlatın.
  5. Üye mint'ini InitializeMint ile başlatın.
  6. Grup mint'ine referans vermesi için aynı mint üzerinde TokenGroupMember'ı başlatın.

Grup mint boyutunu ve rent hesapla

Grup mint için gereken boyut ve rent değerini hesaplayın.

Grup Mint Oluştur ve Başlat

Grup mint hesabını oluşturun, GroupPointer başlatın, mint'i başlatın ve TokenGroup tek bir işlemde başlatın.

Üye mint boyutunu ve rent hesapla

Üye mint için gereken boyut ve rent değerini hesaplayın.

Üye Mint Oluştur ve Başlat

Üye mint hesabını oluşturun, GroupMemberPointer başlatın, mint'i başlatın ve TokenGroupMember tek bir işlemde başlatın.

Grup mint boyutunu ve rent hesapla

Grup mint için gereken boyut ve rent değerini hesaplayın.

Grup Mint Oluştur ve Başlat

Grup mint hesabını oluşturun, GroupPointer başlatın, mint'i başlatın ve TokenGroup tek bir işlemde başlatın.

Üye mint boyutunu ve rent hesapla

Üye mint için gereken boyut ve rent değerini hesaplayın.

Üye Mint Oluştur ve Başlat

Üye mint hesabını oluşturun, GroupMemberPointer başlatın, mint'i başlatın ve TokenGroupMember tek bir işlemde başlatın.

Example
const client = await createClient()
.use(generatedPayer())
.use(
solanaRpc({
rpcUrl: "http://localhost:8899",
rpcSubscriptionsUrl: "ws://localhost:8900"
})
)
.use(rpcAirdrop())
.use(airdropPayer(lamports(1_000_000_000n)));
const groupMint = await generateKeyPairSigner();
const memberMint = await generateKeyPairSigner();
const groupPointerExtension = extension("GroupPointer", {
authority: client.payer.address,
groupAddress: groupMint.address
});
const groupExtension = extension("TokenGroup", {
updateAuthority: client.payer.address,
mint: groupMint.address,
size: 0n,
maxSize: 10n
});
const groupMintSpace = BigInt(
getMintSize([groupPointerExtension, groupExtension])
);
const groupMintCreateSpace = BigInt(getMintSize([groupPointerExtension]));
const groupMintRent = await client.rpc
.getMinimumBalanceForRentExemption(groupMintSpace)
.send();

İşaretçiler ve Komut Sırası

GroupPointer ve GroupMemberPointer, grup veya üye verilerinin bulunduğu hesap adresini depolar. TokenGroup ve TokenGroupMember gerçek grup veya üye verilerini depolar.

GroupPointerInstruction::Initialize ve GroupMemberPointerInstruction::Initialize, InitializeMint öncesinde gelmelidir. TokenGroupInstruction::InitializeGroup ve TokenGroupInstruction::InitializeMember, InitializeMint sonrasında gelmelidir. Her mint için CreateAccount, işaretçi başlatma komutu ve InitializeMint aynı işleme dahil edilmelidir.

Kaynak Referansı

GroupPointer ve GroupMemberPointer, Token Extensions Program içinde işaretçi komutlarıdır. TokenGroup ve TokenGroupMember, Token Extensions Program'ın uyguladığı Token grup arayüzünü takip eder.

Grup İşaretçisi ve Grup Üyesi İşaretçisi

ÖğeAçıklamaKaynak
GroupPointerBir grubun verilerini depolayan hesabın yetkisini ve adresini depolayan mint uzantısı.Kaynak
GroupMemberPointerBir üyenin verilerini depolayan hesabın yetkisini ve adresini depolayan mint uzantısı.Kaynak
GroupPointerInstruction::InitializeInitializeMint öncesinde grup işaretçisi uzantısını başlatır.Kaynak
GroupPointerInstruction::UpdateMint'in GroupPointer uzantısı tarafından depolanan grup adresini günceller.Kaynak
GroupMemberPointerInstruction::InitializeInitializeMint öncesinde grup üyesi işaretçisi uzantısını başlatır.Kaynak
GroupMemberPointerInstruction::UpdateMint'in GroupMemberPointer uzantısı tarafından depolanan üye adresini günceller.Kaynak
process_initialize (GroupPointer)İlk GroupPointer yetkisini ve grup adresini mint üzerine yazar.Kaynak
process_update (GroupPointer)Grup işaretçisi yetkisini doğrular, ardından mint'in depoladığı grup adresini yeniden yazar.Kaynak
process_initialize (GroupMemberPointer)İlk GroupMemberPointer yetkisini ve üye adresini mint üzerine yazar.Kaynak
process_update (GroupMemberPointer)Grup üyesi işaretçisi yetkisini doğrular, ardından mint'in depoladığı üye adresini yeniden yazar.Kaynak

Token Grubu ve Token Grup Üyesi

ÖğeAçıklamaKaynak
TokenGroupMint üzerinde depolanan token grubu arayüz durumu; güncelleme yetkisi, mevcut boyut ve maksimum boyut bilgilerini içerir.Kaynak
TokenGroupMemberMint üzerinde depolanan token grup üyesi arayüz durumu; üye mint'i, grup adresi ve üye numarasını içerir.Kaynak
TokenGroupInstruction::InitializeGroupToken Extensions Program tarafından desteklenen, zaten başlatılmış bir mint için yeni bir grup başlatmaya yarayan token grubu arayüz talimatı.Kaynak
TokenGroupInstruction::UpdateGroupMaxSizeToken Extensions Program tarafından desteklenen, bir grupta izin verilen maksimum üye sayısını güncellemeye yarayan token grubu arayüz talimatı.Kaynak
TokenGroupInstruction::UpdateGroupAuthorityToken Extensions Program tarafından desteklenen, grubun güncelleme yetkisini döndürmeye veya temizlemeye yarayan token grubu arayüz talimatı.Kaynak
TokenGroupInstruction::InitializeMemberToken Extensions Program tarafından desteklenen, zaten başlatılmış bir grup için yeni bir üye başlatmaya yarayan token grubu arayüz talimatı.Kaynak
process_initialize_groupMint'i doğrular, GroupPointer mevcut olduğunu kontrol eder ve grup mint'inde TokenGroup durumunu tahsis eder.Kaynak
process_update_group_max_sizeMevcut güncelleme yetkisini doğrular, ardından grubun maksimum boyutunu günceller.Kaynak
process_update_group_authorityMevcut güncelleme yetkisini doğrular, ardından grubun güncelleme yetkisini döndürür veya temizler.Kaynak
process_initialize_memberÜye mint'ini ve grup yetkisini doğrular, grup boyutunu artırır ve mint üzerinde TokenGroupMember durumunu tahsis eder.Kaynak

Typescript

Aşağıdaki Kit örneği, oluşturulan talimatları doğrudan kullanır. @solana/web3.js, @solana/spl-token ve token grubu yardımcılarını kullanan eski örnekler referans için eklenmiştir.

Kit

Instructions
import {
lamports,
createClient,
generateKeyPairSigner,
unwrapOption
} from "@solana/kit";
import { solanaRpc, rpcAirdrop } from "@solana/kit-plugin-rpc";
import { generatedPayer, airdropPayer } from "@solana/kit-plugin-signer";
import { getCreateAccountInstruction } from "@solana-program/system";
import {
extension,
fetchMint,
getInitializeGroupMemberPointerInstruction,
getInitializeGroupPointerInstruction,
getInitializeMintInstruction,
getInitializeTokenGroupInstruction,
getInitializeTokenGroupMemberInstruction,
getMintSize,
isExtension,
TOKEN_2022_PROGRAM_ADDRESS
} from "@solana-program/token-2022";
const client = await createClient()
.use(generatedPayer())
.use(
solanaRpc({
rpcUrl: "http://localhost:8899",
rpcSubscriptionsUrl: "ws://localhost:8900"
})
)
.use(rpcAirdrop())
.use(airdropPayer(lamports(1_000_000_000n)));
const groupMint = await generateKeyPairSigner();
const memberMint = await generateKeyPairSigner();
const groupPointerExtension = extension("GroupPointer", {
authority: client.payer.address,
groupAddress: groupMint.address
});
const groupExtension = extension("TokenGroup", {
updateAuthority: client.payer.address,
mint: groupMint.address,
size: 0n,
maxSize: 10n
});
const groupMintSpace = BigInt(
getMintSize([groupPointerExtension, groupExtension])
);
const groupMintCreateSpace = BigInt(getMintSize([groupPointerExtension]));
const groupMintRent = await client.rpc
.getMinimumBalanceForRentExemption(groupMintSpace)
.send();
await client.sendTransaction([
getCreateAccountInstruction({
payer: client.payer, // Account funding the new mint account.
newAccount: groupMint, // New group mint account to create.
lamports: groupMintRent, // Lamports funding the mint account rent.
space: groupMintCreateSpace, // Account size in bytes for the mint plus GroupPointer.
programAddress: TOKEN_2022_PROGRAM_ADDRESS // Program that owns the mint account.
}),
getInitializeGroupPointerInstruction({
mint: groupMint.address, // Mint account that stores the GroupPointer extension.
authority: client.payer.address, // Authority allowed to update the group pointer later.
groupAddress: groupMint.address // Account address that stores the group data.
}),
getInitializeMintInstruction({
mint: groupMint.address, // Mint account to initialize.
decimals: 0, // Number of decimals for the token.
mintAuthority: client.payer.address, // Authority allowed to mint new tokens.
freezeAuthority: client.payer.address // Authority allowed to freeze token accounts.
}),
getInitializeTokenGroupInstruction({
group: groupMint.address, // Mint account that stores the group data.
mint: groupMint.address, // Mint that the group data describes.
mintAuthority: client.payer, // Signer authorizing group initialization for the mint.
updateAuthority: client.payer.address, // Authority allowed to update the group later.
maxSize: 10n // Maximum number of members allowed in the group.
})
]);
const memberPointerExtension = extension("GroupMemberPointer", {
authority: client.payer.address,
memberAddress: memberMint.address
});
const memberExtension = extension("TokenGroupMember", {
mint: memberMint.address,
group: groupMint.address,
memberNumber: 1n
});
const memberMintSpace = BigInt(
getMintSize([memberPointerExtension, memberExtension])
);
const memberMintCreateSpace = BigInt(getMintSize([memberPointerExtension]));
const memberMintRent = await client.rpc
.getMinimumBalanceForRentExemption(memberMintSpace)
.send();
await client.sendTransaction([
getCreateAccountInstruction({
payer: client.payer, // Account funding the new mint account.
newAccount: memberMint, // New member mint account to create.
lamports: memberMintRent, // Lamports funding the mint account rent.
space: memberMintCreateSpace, // Account size in bytes for the mint plus GroupMemberPointer.
programAddress: TOKEN_2022_PROGRAM_ADDRESS // Program that owns the mint account.
}),
getInitializeGroupMemberPointerInstruction({
mint: memberMint.address, // Mint account that stores the GroupMemberPointer extension.
authority: client.payer.address, // Authority allowed to update the member pointer later.
memberAddress: memberMint.address // Account address that stores the member data.
}),
getInitializeMintInstruction({
mint: memberMint.address, // Mint account to initialize.
decimals: 0, // Number of decimals for the token.
mintAuthority: client.payer.address, // Authority allowed to mint new tokens.
freezeAuthority: client.payer.address // Authority allowed to freeze token accounts.
}),
getInitializeTokenGroupMemberInstruction({
member: memberMint.address, // Mint account that stores the member data.
memberMint: memberMint.address, // Mint that the member data describes.
memberMintAuthority: client.payer, // Signer authorizing member initialization for the mint.
group: groupMint.address, // Group mint that this member belongs to.
groupUpdateAuthority: client.payer // Signer matching the group's update authority.
})
]);
const groupMintAccount = await fetchMint(client.rpc, groupMint.address);
const memberMintAccount = await fetchMint(client.rpc, memberMint.address);
const groupExtensions = unwrapOption(groupMintAccount.data.extensions) ?? [];
const memberExtensions = unwrapOption(memberMintAccount.data.extensions) ?? [];
console.log(
JSON.stringify(
{
groupMint: groupMint.address,
groupPointer: groupExtensions.find((item) =>
isExtension("GroupPointer", item)
),
group: groupExtensions.find((item) => isExtension("TokenGroup", item)),
memberMint: memberMint.address,
memberPointer: memberExtensions.find((item) =>
isExtension("GroupMemberPointer", item)
),
member: memberExtensions.find((item) =>
isExtension("TokenGroupMember", item)
)
},
(_, value) => (typeof value === "bigint" ? value.toString() : value),
2
)
);
Console
Click to execute the code.

Web3.js

Instructions
import {
Connection,
Keypair,
Transaction,
SystemProgram,
LAMPORTS_PER_SOL,
sendAndConfirmTransaction
} from "@solana/web3.js";
import {
TOKEN_2022_PROGRAM_ID,
ExtensionType,
getMintLen,
getMint,
createInitializeMintInstruction,
createInitializeGroupPointerInstruction,
createInitializeGroupInstruction,
createInitializeGroupMemberPointerInstruction,
createInitializeMemberInstruction,
getGroupPointerState,
getGroupMemberPointerState,
getTokenGroupState,
getTokenGroupMemberState
} from "@solana/spl-token";
const connection = new Connection("http://localhost:8899", "confirmed");
const authority = Keypair.generate();
const airdropSignature = await connection.requestAirdrop(
authority.publicKey,
5 * LAMPORTS_PER_SOL
);
await connection.confirmTransaction(airdropSignature, "confirmed");
const groupMint = Keypair.generate();
const groupPointerExtensions = [ExtensionType.GroupPointer];
const spaceWithGroupPointerExtensions = getMintLen(groupPointerExtensions);
const groupAndGroupPointerExtensions = [
ExtensionType.GroupPointer,
ExtensionType.TokenGroup
];
const spaceWithGroupAndGroupPointerExtensions = getMintLen(
groupAndGroupPointerExtensions
);
const groupMintRent = await connection.getMinimumBalanceForRentExemption(
spaceWithGroupAndGroupPointerExtensions
);
const { blockhash: latestBlockhash } = await connection.getLatestBlockhash();
const createGroupMintAccountInstruction = SystemProgram.createAccount({
fromPubkey: authority.publicKey, // Account funding the new mint account.
newAccountPubkey: groupMint.publicKey, // New group mint account to create.
lamports: groupMintRent, // Lamports funding the mint account rent.
space: spaceWithGroupPointerExtensions, // Account size in bytes for the mint plus GroupPointer.
programId: TOKEN_2022_PROGRAM_ID // Program that owns the mint account.
});
const initializeGroupPointerInstruction =
createInitializeGroupPointerInstruction(
groupMint.publicKey, // Mint account that stores the GroupPointer extension.
authority.publicKey, // Authority allowed to update the group pointer later.
groupMint.publicKey, // Account address that stores the group data.
TOKEN_2022_PROGRAM_ID // Program that owns the mint account.
);
const initializeGroupMintInstruction = createInitializeMintInstruction(
groupMint.publicKey, // Mint account to initialize.
0, // Number of decimals for the token.
authority.publicKey, // Authority allowed to mint new tokens.
authority.publicKey, // Authority allowed to freeze token accounts.
TOKEN_2022_PROGRAM_ID // Program that owns the mint account.
);
const initializeGroupInstruction = createInitializeGroupInstruction({
programId: TOKEN_2022_PROGRAM_ID, // Token program that owns the mint.
group: groupMint.publicKey, // Mint account that stores the group data.
mint: groupMint.publicKey, // Mint that the group data describes.
mintAuthority: authority.publicKey, // Signer authorizing group initialization for the mint.
updateAuthority: authority.publicKey, // Authority allowed to update the group later.
maxSize: 10n // Maximum number of members allowed in the group.
});
const groupTransaction = new Transaction({
feePayer: authority.publicKey,
recentBlockhash: latestBlockhash
}).add(
createGroupMintAccountInstruction,
initializeGroupPointerInstruction,
initializeGroupMintInstruction,
initializeGroupInstruction
);
await sendAndConfirmTransaction(
connection,
groupTransaction,
[authority, groupMint],
{
commitment: "confirmed",
skipPreflight: true
}
);
const memberMint = Keypair.generate();
const memberPointerExtensions = [ExtensionType.GroupMemberPointer];
const spaceWithMemberPointerExtension = getMintLen(memberPointerExtensions);
const memberAndMemberPointerExtensions = [
ExtensionType.GroupMemberPointer,
ExtensionType.TokenGroupMember
];
const spaceWithMemberAndMemberPointerExtensions = getMintLen(
memberAndMemberPointerExtensions
);
const memberMintRent = await connection.getMinimumBalanceForRentExemption(
spaceWithMemberAndMemberPointerExtensions
);
const { blockhash: memberLatestBlockhash } =
await connection.getLatestBlockhash();
const createMemberMintAccountInstruction = SystemProgram.createAccount({
fromPubkey: authority.publicKey, // Account funding the new mint account.
newAccountPubkey: memberMint.publicKey, // New member mint account to create.
lamports: memberMintRent, // Lamports funding the mint account rent.
space: spaceWithMemberPointerExtension, // Account size in bytes for the mint plus GroupMemberPointer.
programId: TOKEN_2022_PROGRAM_ID // Program that owns the mint account.
});
const initializeMemberPointerInstruction =
createInitializeGroupMemberPointerInstruction(
memberMint.publicKey, // Mint account that stores the GroupMemberPointer extension.
authority.publicKey, // Authority allowed to update the member pointer later.
memberMint.publicKey, // Account address that stores the member data.
TOKEN_2022_PROGRAM_ID // Program that owns the mint account.
);
const initializeMemberMintInstruction = createInitializeMintInstruction(
memberMint.publicKey, // Mint account to initialize.
0, // Number of decimals for the token.
authority.publicKey, // Authority allowed to mint new tokens.
authority.publicKey, // Authority allowed to freeze token accounts.
TOKEN_2022_PROGRAM_ID // Program that owns the mint account.
);
const initializeMemberInstruction = createInitializeMemberInstruction({
programId: TOKEN_2022_PROGRAM_ID, // Token program that owns the mint.
member: memberMint.publicKey, // Mint account that stores the member data.
memberMint: memberMint.publicKey, // Mint that the member data describes.
memberMintAuthority: authority.publicKey, // Signer authorizing member initialization for the mint.
group: groupMint.publicKey, // Group mint that this member belongs to.
groupUpdateAuthority: authority.publicKey // Signer matching the group's update authority.
});
const memberTransaction = new Transaction({
feePayer: authority.publicKey,
recentBlockhash: memberLatestBlockhash
}).add(
createMemberMintAccountInstruction,
initializeMemberPointerInstruction,
initializeMemberMintInstruction,
initializeMemberInstruction
);
await sendAndConfirmTransaction(
connection,
memberTransaction,
[authority, memberMint],
{
commitment: "confirmed",
skipPreflight: true
}
);
const groupMintAccount = await getMint(
connection,
groupMint.publicKey,
"confirmed",
TOKEN_2022_PROGRAM_ID
);
const memberMintAccount = await getMint(
connection,
memberMint.publicKey,
"confirmed",
TOKEN_2022_PROGRAM_ID
);
console.log(
JSON.stringify(
{
groupMint: groupMint.publicKey,
groupPointer: getGroupPointerState(groupMintAccount),
group: getTokenGroupState(groupMintAccount),
memberMint: memberMint.publicKey,
memberPointer: getGroupMemberPointerState(memberMintAccount),
member: getTokenGroupMemberState(memberMintAccount)
},
(_, value) => (typeof value === "bigint" ? value.toString() : value),
2
)
);
Console
Click to execute the code.

Rust

Rust
use anyhow::Result;
use solana_client::nonblocking::rpc_client::RpcClient;
use solana_commitment_config::CommitmentConfig;
use solana_sdk::{
signature::{Keypair, Signer},
transaction::Transaction,
};
use solana_system_interface::instruction::create_account;
use spl_token_2022_interface::{
extension::{
group_member_pointer::{
instruction::initialize as initialize_group_member_pointer, GroupMemberPointer,
},
group_pointer::{instruction::initialize as initialize_group_pointer, GroupPointer},
BaseStateWithExtensions, ExtensionType, StateWithExtensions,
},
instruction::initialize_mint,
state::Mint,
ID as TOKEN_2022_PROGRAM_ID,
};
use spl_token_group_interface::{
instruction::{initialize_group, initialize_member},
state::{TokenGroup, TokenGroupMember},
};
#[tokio::main]
async fn main() -> Result<()> {
let client = RpcClient::new_with_commitment(
String::from("http://localhost:8899"),
CommitmentConfig::confirmed(),
);
let authority = Keypair::new();
let airdrop_signature = client
.request_airdrop(&authority.pubkey(), 5_000_000_000)
.await?;
loop {
let confirmed = client.confirm_transaction(&airdrop_signature).await?;
if confirmed {
break;
}
}
let group_mint = Keypair::new();
let group_mint_space =
ExtensionType::try_calculate_account_len::<Mint>(&[ExtensionType::GroupPointer])?;
let group_mint_space_with_data = ExtensionType::try_calculate_account_len::<Mint>(&[
ExtensionType::GroupPointer,
ExtensionType::TokenGroup,
])?;
let group_mint_rent = client
.get_minimum_balance_for_rent_exemption(group_mint_space_with_data)
.await?;
let create_group_mint_account_instruction = create_account(
&authority.pubkey(), // Account funding the new mint account.
&group_mint.pubkey(), // New group mint account to create.
group_mint_rent, // Lamports funding the mint account rent.
group_mint_space as u64, // Account size in bytes for the mint plus GroupPointer.
&TOKEN_2022_PROGRAM_ID, // Program that owns the mint account.
);
let initialize_group_pointer_instruction = initialize_group_pointer(
&TOKEN_2022_PROGRAM_ID,
&group_mint.pubkey(), // Mint account that stores the GroupPointer extension.
Some(authority.pubkey()), // Authority allowed to update the group pointer later.
Some(group_mint.pubkey()), // Account address that stores the group data.
)?;
let initialize_group_mint_instruction = initialize_mint(
&TOKEN_2022_PROGRAM_ID, // Program that owns the mint account.
&group_mint.pubkey(), // Mint account to initialize.
&authority.pubkey(), // Authority allowed to mint new tokens.
Some(&authority.pubkey()), // Authority allowed to freeze token accounts.
0, // Number of decimals for the token.
)?;
let initialize_group_instruction = initialize_group(
&TOKEN_2022_PROGRAM_ID, // Program that owns the mint account.
&group_mint.pubkey(), // Mint account that stores the group data.
&group_mint.pubkey(), // Mint that the group data describes.
&authority.pubkey(), // Signer authorizing group initialization for the mint.
Some(authority.pubkey()), // Authority allowed to update the group later.
10, // Maximum number of members allowed in the group.
);
let group_transaction = Transaction::new_signed_with_payer(
&[
create_group_mint_account_instruction,
initialize_group_pointer_instruction,
initialize_group_mint_instruction,
initialize_group_instruction,
],
Some(&authority.pubkey()),
&[&authority, &group_mint],
client.get_latest_blockhash().await?,
);
client
.send_and_confirm_transaction(&group_transaction)
.await?;
let member_mint = Keypair::new();
let member_mint_space =
ExtensionType::try_calculate_account_len::<Mint>(&[ExtensionType::GroupMemberPointer])?;
let member_mint_space_with_data = ExtensionType::try_calculate_account_len::<Mint>(&[
ExtensionType::GroupMemberPointer,
ExtensionType::TokenGroupMember,
])?;
let member_mint_rent = client
.get_minimum_balance_for_rent_exemption(member_mint_space_with_data)
.await?;
let create_member_mint_account_instruction = create_account(
&authority.pubkey(), // Account funding the new mint account.
&member_mint.pubkey(), // New member mint account to create.
member_mint_rent, // Lamports funding the mint account rent.
member_mint_space as u64, // Account size in bytes for the mint plus GroupMemberPointer.
&TOKEN_2022_PROGRAM_ID, // Program that owns the mint account.
);
let initialize_member_pointer_instruction = initialize_group_member_pointer(
&TOKEN_2022_PROGRAM_ID,
&member_mint.pubkey(), // Mint account that stores the GroupMemberPointer extension.
Some(authority.pubkey()), // Authority allowed to update the member pointer later.
Some(member_mint.pubkey()), // Account address that stores the member data.
)?;
let initialize_member_mint_instruction = initialize_mint(
&TOKEN_2022_PROGRAM_ID, // Program that owns the mint account.
&member_mint.pubkey(), // Mint account to initialize.
&authority.pubkey(), // Authority allowed to mint new tokens.
Some(&authority.pubkey()), // Authority allowed to freeze token accounts.
0, // Number of decimals for the token.
)?;
let initialize_member_instruction = initialize_member(
&TOKEN_2022_PROGRAM_ID, // Program that owns the mint account.
&member_mint.pubkey(), // Mint account that stores the member data.
&member_mint.pubkey(), // Mint that the member data describes.
&authority.pubkey(), // Signer authorizing member initialization for the mint.
&group_mint.pubkey(), // Group mint that this member belongs to.
&authority.pubkey(), // Signer matching the group's update authority.
);
let member_transaction = Transaction::new_signed_with_payer(
&[
create_member_mint_account_instruction,
initialize_member_pointer_instruction,
initialize_member_mint_instruction,
initialize_member_instruction,
],
Some(&authority.pubkey()),
&[&authority, &member_mint],
client.get_latest_blockhash().await?,
);
client
.send_and_confirm_transaction(&member_transaction)
.await?;
let group_mint_account = client.get_account(&group_mint.pubkey()).await?;
let group_mint_state = StateWithExtensions::<Mint>::unpack(&group_mint_account.data)?;
let group_pointer = group_mint_state.get_extension::<GroupPointer>()?;
let token_group = group_mint_state.get_extension::<TokenGroup>()?;
let member_mint_account = client.get_account(&member_mint.pubkey()).await?;
let member_mint_state = StateWithExtensions::<Mint>::unpack(&member_mint_account.data)?;
let member_pointer = member_mint_state.get_extension::<GroupMemberPointer>()?;
let token_group_member = member_mint_state.get_extension::<TokenGroupMember>()?;
println!("\nGroup Mint: {}", group_mint.pubkey());
println!("\nGroup Pointer: {:#?}", group_pointer);
println!("\nToken Group: {:#?}", token_group);
println!("\nMember Mint: {}", member_mint.pubkey());
println!("\nGroup Member Pointer: {:#?}", member_pointer);
println!("\nToken Group Member: {:#?}", token_group_member);
Ok(())
}
Console
Click to execute the code.

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