---
name: shared-constants
description: >
  Use shared library constants like TIME and THEME.
  Load when hardcoding time durations, milliseconds, breakpoints, or offsets.
type: core
library: denwa-web-shared
library_version: '1.0.58'
sources:
  - 'src/server/constants/index.ts'
---

# denwa-web-shared — Use library constants

## Setup

```tsx
import { TIME, THEME } from 'denwa-web-shared/server';

const timeout = TIME.milliseconds.seconds5;
const offset = THEME.OFFSET[4];
```

## Core Patterns

### Using TIME constants for durations

```tsx
import { TIME } from 'denwa-web-shared/server';

export const fetchWithTimeout = async (url: string) => {
  const controller = new AbortController();
  setTimeout(() => controller.abort(), TIME.milliseconds.seconds5);

  return fetch(url, { signal: controller.signal });
};
```

## Common Mistakes

### MEDIUM Hardcoding time values

Wrong:

```tsx
setTimeout(fn, 1000);
```

Correct:

```tsx
import { TIME } from 'denwa-web-shared/server';

setTimeout(fn, TIME.milliseconds.seconds1);
```

Agents hardcode milliseconds values instead of using the TIME constant.

Source: maintainer interview