Function createRateLimitResponse

apps/sim/app/api/v1/middleware.ts:128–157

(result: RateLimitResult)

}

export function createRateLimitResponse(result: RateLimitResult): NextResponse {
  const headers = {
    'X-RateLimit-Limit': result.limit.toString(),
    'X-RateLimit-Remaining': result.remaining.toString(),
    'X-RateLimit-Reset': result.resetAt.toISOString(),
  }

  if (result.error) {
    return NextResponse.json({ error: result.error || 'Unauthorized' }, { status: 401, headers })
  }

  const retryAfterSeconds = result.retryAfterMs
    ? Math.ceil(result.retryAfterMs / 1000)
    : Math.ceil((result.resetAt.getTime() - Date.now()) / 1000)

  return NextResponse.json(
    {
      error: 'Rate limit exceeded',
      message: `API rate limit exceeded. Please retry after ${result.resetAt.toISOString()}`,
      retryAfter: result.resetAt.getTime(),
    },
    {
      status: 429,
      headers: {
        ...headers,
        'Retry-After': retryAfterSeconds.toString(),
      },
    }
  )
}

/**
 * Verify that the API key is allowed to access the requested workspace.