Function readJsonOrThrow

examples/lit/pagination/src/api.ts:68–85

(
  response: Response,
  fallbackMessage: string,
)

}

async function readJsonOrThrow<T>(
  response: Response,
  fallbackMessage: string,
): Promise<T> {
  if (response.ok) {
    return (await response.json()) as T
  }

  const payload = (await response.json().catch(() => null)) as {
    error?: string
  } | null

  throw new Error(
    payload && typeof payload === 'object' && 'error' in payload
      ? String(payload.error ?? fallbackMessage)
      : fallbackMessage,
  )
}

async function requestJson<T>(
  url: URL,