# Rename Key Where Value Equal

Rename a key where the value is equal to a specified value.

### Example

This example shows how to use the RenameKeyWhereValueEq transformation to rename a key if the value equals a specified value.

```json
{
	"operation": "rename_key_where_value_eq",
	"arguments": {
		"key": "old_key",
		"value": "target_value",
		"new_key": "new_key"
	}
}
```

Given the input record where the value matches:

```json
{
	"old_key": "target_value",
	"another_field": "another_value"
}
```

The output record will be:

```json
{
	"new_key": "target_value",
	"another_field": "another_value"
}
```

Given the input record where the value does not match:

```json
{
	"old_key": "different_value",
	"another_field": "another_value"
}
```

The output record will be unchanged:

```json
{
	"old_key": "different_value",
	"another_field": "another_value"
}
```