Derive Macro anchor_lang::Accounts

#[derive(Accounts)]
{
    // Attributes available to this derive:
    #[account]
}

Implements an Accounts deserializer on the given struct, applying any constraints specified via inert #[account(..)] attributes upon deserialization.

Example

#[derive(Accounts)]
pub struct Auth<'info> {
    #[account(mut, has_one = authority)]
    pub data: ProgramAccount<'info, MyData>,
    #[account(signer)]
    pub authority: AccountInfo<'info>,
}

#[account]
pub struct MyData {
  authority: Pubkey,
  protected_data: u64,
}

Here, any instance of the Auth struct created via try_accounts is guaranteed to have been both

• Signed by authority.
• Checked that &data.authority == authority.key.

The full list of available attributes is as follows.

Attribute	Location	Description
#[account(signer)]	On raw AccountInfo structs.	Checks the given account signed the transaction.
#[account(mut)]	On AccountInfo, ProgramAccount or CpiAccount structs.	Marks the account as mutable and persists the state transition.
#[account(init)]	On ProgramAccount structs.	Marks the account as being initialized, skipping the account discriminator check.
#[account(belongs_to = <target>)]	On ProgramAccount or CpiAccount structs	Checks the target field on the account matches the target field in the struct deriving Accounts.
#[account(has_one = <target>)]	On ProgramAccount or CpiAccount structs	Semantically different, but otherwise the same as belongs_to.
#[account(seeds = [<seeds>])]	On AccountInfo structs	Seeds for the program derived address an AccountInfo struct represents.
#[account("<literal>")]	On any type deriving Accounts	Executes the given code literal as a constraint. The literal should evaluate to a boolean.
#[account(rent_exempt = <skip>)]	On AccountInfo or ProgramAccount structs	Optional attribute to skip the rent exemption check. By default, all accounts marked with #[account(init)] will be rent exempt, and so this should rarely (if ever) be used. Similarly, omitting = skip will mark the account rent exempt.