# recordLogs

Description: recordLogs cheatcode documentation

Note: This document was authored using MDX

  Source: https://github.com/NomicFoundation/hardhat-website/tree/main/src/content/docs/docs/reference/cheatcodes/Environment/record-logs.mdx

{/* This document contains content copied/adapted from the Foundry Book (MIT licensed). See LICENSE in the parent directory. */}

### Signature

```solidity
function recordLogs() external;
```

### Description

Tells the VM to start recording all the emitted events. To access them, use [`getRecordedLogs`](/docs/reference/cheatcodes/environment/get-recorded-logs).

### Examples

```solidity
/// event LogCompleted(
///   uint256 indexed topic1,
///   bytes data
/// );

vm.recordLogs();

emit LogCompleted(10, "operation completed");

Vm.Log[] memory entries = vm.getRecordedLogs();

assertEq(entries.length, 1);
assertEq(entries[0].topics[0], keccak256("LogCompleted(uint256,bytes)"));
assertEq(entries[0].topics[1], bytes32(uint256(10)));
assertEq(abi.decode(entries[0].data, (string)), "operation completed");
```