msw

Included with Lifetime

$97 forever

Mock Service Worker API mocking, request handlers, and integration testing.

Backend & APIs

What this skill does


# MSW Skill

Expert assistance for API mocking with Mock Service Worker.

## Capabilities

- Create request handlers
- Mock REST and GraphQL APIs
- Handle network errors
- Integrate with tests
- Use in development

## Handlers

```typescript
import { http, HttpResponse } from 'msw';

export const handlers = [
  http.get('/api/users', () => {
    return HttpResponse.json([
      { id: '1', name: 'John' },
      { id: '2', name: 'Jane' },
    ]);
  }),

  http.post('/api/users', async ({ request }) => {
    const body = await request.json();
    return HttpResponse.json({ id: '3', ...body }, { status: 201 });
  }),

  http.get('/api/users/:id', ({ params }) => {
    return HttpResponse.json({ id: params.id, name: 'John' });
  }),
];
```

## Test Integration

```typescript
import { setupServer } from 'msw/node';
import { handlers } from './handlers';

const server = setupServer(...handlers);

beforeAll(() => server.listen());
afterEach(() => server.resetHandlers());
afterAll(() => server.close());
```

## Target Processes

- api-mocking
- integration-testing
- frontend-development

Files: 2

Size: 1.6 KB

Complexity: 10/100

Category: Backend & APIs

Source: https://github.com/a5c-ai/babysitter/tree/main/library/specializations/web-development/skills/msw

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