closeAccount returns the lamports
Source: record/tests/record.rs L212
- Given: a record initialized with alice as authority
- When: setup: payer initializes the record
- When: alice closes the record and drains lamports to receiver
- Then: record lamports = 0 ✓
- Then: receiver lamports = 10000000 ✓
Result: ✓ success — 988 CU · claims 2/2 ✓
sequenceDiagram
participant p0 as alice
participant p1 as Record
p0->>p1: closeAccount
activate p1
p1-->>p0: ✓ 988cu
deactivate p1
Authority
flowchart LR
Record["Record"]:::program
1115[("1115…")]:::state
alice(["alice"]):::signer
111B[("111B…")]:::state
Record -->|writes| 1115
alice -->|signs| Record
Record -->|writes| 111B
classDef program fill:#dae8fc,stroke:#6c8ebf;
classDef signer fill:#d5e8d4,stroke:#82b366;
classDef state fill:#ffe6cc,stroke:#d79b00;
Ownership
flowchart LR
Record["Record"]:::program
1115[("1115…")]:::state
system["system"]:::program
alice[("alice")]:::state
111B[("111B…")]:::state
Record -->|owns| 1115
system -->|owns| alice
system -->|owns| 111B
classDef program fill:#dae8fc,stroke:#6c8ebf;
classDef signer fill:#d5e8d4,stroke:#82b366;
classDef state fill:#ffe6cc,stroke:#d79b00;
Accounts
| Account | Signer | Writable | Owner |
|---|---|---|---|
| 1115… | · | ✓ | Record |
| alice | ✓ | ✓ | system |
| 111B… | · | ✓ | system |
Call tree and logs
closeAccount returns the lamports
alice (988cu)
└─ Record::closeAccount ✓ 988cu
Program recr1L3PCGKLbckBqMNcJhuuyU1zgo8nBhfLVsJNwr5 invoke [1]
Program log: RecordInstruction::CloseAccount
Program recr1L3PCGKLbckBqMNcJhuuyU1zgo8nBhfLVsJNwr5 consumed 988 of 200000 compute units
Program recr1L3PCGKLbckBqMNcJhuuyU1zgo8nBhfLVsJNwr5 success
Integration
What an integrator writes: the derivations and the instruction, byte-identical to the transaction this page witnessed. Addresses are this scenario’s; supply your own.
#![allow(unused)]
fn main() {
use solana_instruction::{AccountMeta, Instruction};
use solana_pubkey::{pubkey, Pubkey};
// --- closeAccount ---
let program_id: Pubkey = pubkey!("recr1L3PCGKLbckBqMNcJhuuyU1zgo8nBhfLVsJNwr5");
let record_account: Pubkey = pubkey!("11157t3sqMV725NVRLrVQbAu98Jjfk1uCKehJnXXQs"); // supply your own
let authority: Pubkey = pubkey!("2rj1EEgg32bupe12mMYnPFaKQCPPyYBhKYmDFZ8cXxpT"); // alice: this scenario's value; supply your own
let receiver: Pubkey = pubkey!("111BuZ6b86gm7XhxjvTakhRvxSMjXp2GqgifkNUmDK"); // supply your own
let ix = Instruction {
program_id,
accounts: vec![
AccountMeta::new(record_account, false), // recordAccount
AccountMeta::new_readonly(authority, true), // authority
AccountMeta::new(receiver, false), // receiver
],
// discriminator ++ borsh()
data: vec![0x03],
};
}
The same call through the Codama-generated TypeScript client (the async builder derives every PDA the resolver derived here, so only the free inputs appear):
import { address } from "@solana/kit";
import { getCloseAccountInstructionAsync } from "your-generated-client";
const ix = await getCloseAccountInstructionAsync({
recordAccount: address("11157t3sqMV725NVRLrVQbAu98Jjfk1uCKehJnXXQs"),
authority: authoritySigner, // alice (a TransactionSigner)
receiver: address("111BuZ6b86gm7XhxjvTakhRvxSMjXp2GqgifkNUmDK"),
});
How this page verifies itself: the test that ran it
The narrative above is this test; the page and the code cannot drift.
#![allow(unused)]
fn main() {
#[test]
fn close_account_returns_the_lamports() {
let mut story = Story::load(SO, IDL);
story.given("a record initialized with alice as authority");
let payer = story.cast("payer");
let alice = story.cast("alice");
let record = story.stage_record(WRITABLE_START + 16);
story
.when(
"setup: payer initializes the record",
initialize()
.record_account(record)
.authority(alice.pubkey()),
&[&payer],
)
.expect_success();
let record_lamports = lamports(&story, &record);
let receiver = Pubkey::new_unique();
let record_lamports_after = story.track("record lamports", move |s| lamports(s, &record));
let receiver_lamports = story.track("receiver lamports", move |s| lamports(s, &receiver));
let out = story
.when(
"alice closes the record and drains lamports to receiver",
close_account()
.record_account(record)
.authority(&alice)
.receiver(receiver),
&[&alice],
)
.expect_success();
story.then_eq(&record_lamports_after, 0);
story.then_eq(&receiver_lamports, record_lamports);
emit_scenario(&story, &out, "closeAccount returns the lamports");
}
}