Account Types

Minimal reference examples for Anchor account types.

See the account types source code for implementation details.

Account Types

`Account<'info, T>`

Description: Account container that checks ownership on deserialization
Examples: Github | Solpg

snippet

#[derive(Accounts)]
pub struct InstructionAccounts<'info> {


    pub account: Account<'info, CustomAccountType>,
}
 
#[account]
pub struct CustomAccountType {
    data: u64,
}

`AccountInfo<'info>`

Description: AccountInfo can be used as a type but Unchecked Account should be used instead
Examples: Github | Solpg

snippet

#[derive(Accounts)]
pub struct InstructionAccounts<'info> {
    /// CHECK: AccountInfo is an unchecked account


    pub unchecked_account: AccountInfo<'info>,
}

`AccountLoader<'info, T>`

Description: Type facilitating on demand zero copy deserialization
Examples: Github | Solpg

snippet

#[derive(Accounts)]
pub struct InstructionAccounts<'info> {


    pub account: AccountLoader<'info, ZeroCopyAccountType>,
}
 
#[account(zero_copy)]
pub struct ZeroCopyAccountType {
    data: u64,
}

`Box<Account<'info, T>>`

Description: Box type to save stack space
Examples: Github | Solpg

snippet

#[derive(Accounts)]
pub struct InstructionAccounts<'info> {


    pub account: Box<Account<'info, AccountType>>,
}

`Interface<'info, T>`

Description: Type validating that the account is one of a set of given Programs
Examples: Github | Solpg

snippet

// Token program or Token2022 program
use anchor_spl::token_interface::TokenInterface;
 
#[derive(Accounts)]
pub struct InstructionAccounts<'info> {


    pub program: Interface<'info, TokenInterface>,
}

`InterfaceAccount<'info, T>`

Description: Account container that checks ownership on deserialization
Examples: Github | Solpg

snippet

// Token program or Token2022 program Mint/TokenAccount
use anchor_spl::token_interface::{Mint, TokenAccount, TokenInterface};
 
#[derive(Accounts)]
pub struct InstructionAccounts<'info> {


    pub mint: InterfaceAccount<'info, Mint>,
    pub token: InterfaceAccount<'info, TokenAccount>,
    pub program: Interface<'info, TokenInterface>,
}

`Option<Account<'info, T>>`

Description: Option type for optional accounts
Examples: Github | Solpg

snippet

#[derive(Accounts)]
pub struct InstructionAccounts<'info> {


    pub account: Option<Account<'info, AccountType>>,
}

`Program<'info, T>`

Description: Type validating that the account is the given Program
Examples: Github | Solpg

snippet

use anchor_spl::token::Token;
 
#[derive(Accounts)]
pub struct InstructionAccounts<'info> {


    pub system_program: Program<'info, System>,
    pub token_program: Program<'info, Token>,
}

`Signer<'info>`

Description: Type validating that the account signed the transaction
Examples: Github | Solpg

snippet

#[derive(Accounts)]
pub struct InstructionAccounts<'info> {


    pub signer: Signer<'info>,
}

`SystemAccount<'info>`

Description: Type validating that the account is owned by the system program
Examples: Github | Solpg

snippet

#[derive(Accounts)]
pub struct InstructionAccounts<'info> {


    pub account: SystemAccount<'info>,
}

`Sysvar<'info, T>`

Description: Type validating that the account is a sysvar and deserializing it
Examples: Github | Solpg

snippet

#[derive(Accounts)]
pub struct InstructionAccounts<'info> {


    pub rent: Sysvar<'info, Rent>,
    pub clock: Sysvar<'info, Clock>,
}

`UncheckedAccount<'info>`

Description: Explicit wrapper for AccountInfo types to emphasize that no checks are performed
Examples: Github | Solpg

snippet

#[derive(Accounts)]
pub struct InstructionAccounts<'info> {
    // CHECK: No checks are performed


    pub account: UncheckedAccount<'info>,
}

Account Types

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