Grupos de tokens y miembros

¿Qué son las extensiones de grupo y miembro de grupo?

Un grupo es un mint que representa una colección. Un miembro de grupo es un mint que pertenece a esa colección.

Utiliza estas extensiones cuando un mint deba representar la colección y otros mints deban representar elementos que le pertenecen.

El Token Extensions Program puede almacenar datos de grupo de tokens directamente en un mint con cuatro extensiones relacionadas:

  • GroupPointer apunta un mint a la cuenta que almacena los datos del grupo.
  • TokenGroup almacena los datos del grupo en sí, incluyendo la autoridad de actualización, el tamaño actual y el tamaño máximo.
  • GroupMemberPointer apunta un mint a la cuenta que almacena los datos del miembro.
  • TokenGroupMember almacena la dirección del grupo del miembro y el número de miembro.

GroupPointer y GroupMemberPointer pueden hacer referencia a cualquier cuenta propiedad de un programa que implemente la interfaz de grupo de tokens.

El Token Extensions Program también implementa esa interfaz directamente a través de las extensiones de mint TokenGroup y TokenGroupMember.

Cómo crear grupos y miembros almacenados en la cuenta de mint

Para crear grupos y miembros almacenados en la cuenta de mint:

  1. Crea una cuenta de mint de grupo e inicializa GroupPointer.
  2. Inicializa el mint de grupo con InitializeMint.
  3. Inicializa TokenGroup en ese mismo mint.
  4. Crea una cuenta de mint de miembro e inicializa GroupMemberPointer.
  5. Inicializa el mint de miembro con InitializeMint.
  6. Inicializa TokenGroupMember en ese mismo mint para que haga referencia al mint de grupo.

Calcular el tamaño y el alquiler del mint de grupo

Calcula el tamaño y el alquiler necesarios para el mint de grupo.

Crear e Inicializar el Mint de Grupo

Crea la cuenta del mint de grupo, inicializa GroupPointer, inicializa el mint, e inicializa TokenGroup en una sola transacción.

Calcular el tamaño y el alquiler del mint de miembro

Calcula el tamaño y el alquiler necesarios para el mint de miembro.

Crear e Inicializar el Mint de Miembro

Crea la cuenta del mint de miembro, inicializa GroupMemberPointer, inicializa el mint, e inicializa TokenGroupMember en una sola transacción.

Calcular el tamaño y el alquiler del mint de grupo

Calcula el tamaño y el alquiler necesarios para el mint de grupo.

Crear e Inicializar el Mint de Grupo

Crea la cuenta del mint de grupo, inicializa GroupPointer, inicializa el mint, e inicializa TokenGroup en una sola transacción.

Calcular el tamaño y el alquiler del mint de miembro

Calcula el tamaño y el alquiler necesarios para el mint de miembro.

Crear e Inicializar el Mint de Miembro

Crea la cuenta del mint de miembro, inicializa GroupMemberPointer, inicializa el mint, e inicializa TokenGroupMember en una sola transacción.

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();

Punteros y Orden de Instrucciones

GroupPointer y GroupMemberPointer almacenan la dirección de la cuenta donde residen los datos del grupo o del miembro. TokenGroup y TokenGroupMember almacenan los datos reales del grupo o del miembro.

GroupPointerInstruction::Initialize y GroupMemberPointerInstruction::Initialize deben venir antes de InitializeMint. TokenGroupInstruction::InitializeGroup y TokenGroupInstruction::InitializeMember deben venir después de InitializeMint. Para cada mint, CreateAccount, la instrucción de inicialización del puntero y InitializeMint deben incluirse en la misma transacción.

Referencia de Código Fuente

GroupPointer y GroupMemberPointer son instrucciones de puntero en el Token Extensions Program. TokenGroup y TokenGroupMember siguen la interfaz de grupo de tokens, que el Token Extensions Program implementa.

Puntero de Grupo y Puntero de Miembro de Grupo

ElementoDescripciónFuente
GroupPointerExtensión de mint que almacena la autoridad y la dirección de la cuenta que contiene los datos de un grupo.Fuente
GroupMemberPointerExtensión de mint que almacena la autoridad y la dirección de la cuenta que contiene los datos de un miembro.Fuente
GroupPointerInstruction::InitializeInicializa la extensión del puntero de grupo antes de InitializeMint.Fuente
GroupPointerInstruction::UpdateActualiza la dirección del grupo almacenada en la extensión GroupPointer del mint.Fuente
GroupMemberPointerInstruction::InitializeInicializa la extensión del puntero de miembro de grupo antes de InitializeMint.Fuente
GroupMemberPointerInstruction::UpdateActualiza la dirección del miembro almacenada en la extensión GroupMemberPointer del mint.Fuente
process_initialize (GroupPointer)Escribe la autoridad inicial de GroupPointer y la dirección del grupo en el mint.Fuente
process_update (GroupPointer)Valida la autoridad del puntero de grupo y luego reescribe la dirección del grupo almacenada en el mint.Fuente
process_initialize (GroupMemberPointer)Escribe la autoridad inicial de GroupMemberPointer y la dirección del miembro en el mint.Fuente
process_update (GroupMemberPointer)Valida la autoridad del puntero de miembro de grupo y luego reescribe la dirección del miembro almacenada en el mint.Fuente

Token Group y Token Group Member

ElementoDescripciónFuente
TokenGroupEstado de la interfaz del grupo de tokens almacenado en el mint, incluyendo la autoridad de actualización, tamaño actual y tamaño máximo.Fuente
TokenGroupMemberEstado de la interfaz del miembro del grupo de tokens almacenado en el mint, incluyendo el mint del miembro, dirección del grupo y número de miembro.Fuente
TokenGroupInstruction::InitializeGroupInstrucción de la interfaz del grupo de tokens compatible con el Token Extensions Program para inicializar un nuevo grupo para un mint ya inicializado.Fuente
TokenGroupInstruction::UpdateGroupMaxSizeInstrucción de la interfaz del grupo de tokens compatible con el Token Extensions Program para actualizar el número máximo de miembros permitidos en un grupo.Fuente
TokenGroupInstruction::UpdateGroupAuthorityInstrucción de la interfaz del grupo de tokens compatible con el Token Extensions Program para rotar o borrar la autoridad de actualización del grupo.Fuente
TokenGroupInstruction::InitializeMemberInstrucción de la interfaz del grupo de tokens compatible con el Token Extensions Program para inicializar un nuevo miembro para un grupo ya inicializado.Fuente
process_initialize_groupValida el mint, verifica que GroupPointer esté presente y asigna el estado TokenGroup en el mint del grupo.Fuente
process_update_group_max_sizeValida la autoridad de actualización actual y luego actualiza el tamaño máximo del grupo.Fuente
process_update_group_authorityValida la autoridad de actualización actual y luego rota o borra la autoridad de actualización del grupo.Fuente
process_initialize_memberValida el mint del miembro y la autoridad del grupo, incrementa el tamaño del grupo y asigna el estado TokenGroupMember en el mint.Fuente

Typescript

El ejemplo de Kit a continuación utiliza las instrucciones generadas directamente. Se incluyen ejemplos heredados que usan @solana/web3.js, @solana/spl-token y los helpers de grupos de tokens como referencia.

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
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