# Frontend API Integration

## Client

`lib/accounting-api.ts`:

- Base URL from `NEXT_PUBLIC_ACCOUNTING_API_URL`
- Always sets `Content-Type`, `X-Tenant-ID`, Bearer token
- Throws `AccountingApiError` with backend `error.code` / `error.message`
- No mock adapters, no fake fixtures

## Env

```
NEXT_PUBLIC_ACCOUNTING_API_URL=http://localhost:8002
```

Also wired in `next.config.mjs`, `.env.example`, and `docker-compose.yml`.

## Query keys

Convention: `["accounting", tenantId, resource, ...ids]`