John 905b445dc8 anchor basics working		1 rok pred
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migrations	bbe74eee4d Upgrade to `@coral-xyz/anchor` 0.28.0 (#50)	2 rokov pred
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Anchor.toml	d54727e782 update anchor basics examples	2 rokov pred
Cargo.toml	f2d93baee1 add resolver = "2" to fix compile warning	1 rok pred
README.md	1780636d2e close account example	2 rokov pred
package.json	f116e3891a update to @coral-xyz/spl-token 0.30.0	1 rok pred
tsconfig.json	1780636d2e close account example	2 rokov pred

Destroy an Account

We're creating a PDA using create_user.rs instruction.

#[account(
init,
seeds=[User::PREFIX.as_bytes(), user.key().as_ref()],
payer=user,
space=User::SIZE,
bump
)]
pub user_account: Box<Account<'info, User>>,

We're closing it using destroy_user.rs instruction, which uses Anchor AccoutClose trait.
```
user_account.close(user.to_account_info())?;
```

In our test destroy-an-account.ts we're using fetchNullable since we expect the account to be null prior to creation and after closing.

const userAccountBefore = await program.account.user.fetchNullable(userAccountAddress, "processed");
assert.equal(userAccountBefore, null);
...
...
const userAccountAfter = await program.account.user.fetchNullable(userAccountAddress, "processed");
assert.notEqual(userAccountAfter, null);

README.md

Destroy an Account