---
url: /reference/Function.parseModuleId.md
---
# Function: parseModuleId()

* **Exported from**: `rolldown/utils`
* **Type**: (`id`: `string`) => { `attributes`: `Record`<`string`, `string`>; `rawId`: `string`; }

Splits a module id into the raw id and the import attributes it was built from.

An id that only looks like it has attributes, e.g. `virtual?attributes=foo`, is returned as
the raw id with no attributes, because only a suffix that [`stringifyModuleId`](Function.stringifyModuleId.md)
produces exactly is accepted.

## Parameters

### id

`string`

## Returns

{ `attributes`: `Record`<`string`, `string`>; `rawId`: `string`; }

### attributes

* **Type**: `Record`<`string`, `string`>

### rawId

* **Type**: `string`

## Example

```js
parseModuleId('/src/a.json?attributes=%7B%22type%22%3A%22json%22%7D');
// → { rawId: '/src/a.json', attributes: { type: 'json' } }
parseModuleId('/src/a.js?raw');
// → { rawId: '/src/a.js?raw', attributes: {} }
```