函数 Await

用于渲染 Promise 值并自动处理错误。

import { Await, useLoaderData } from "react-router";

export function loader() {
  // not awaited
  const reviews = getReviews()
  // awaited (blocks the transition)
  const book = await fetch("/api/book").then((res) => res.json())
  return { book, reviews }
}

function Book() {
  const { book, reviews } = useLoaderData();
  return (
    <div>
      <h1>{book.title}</h1>
      <p>{book.description}</p>
      <React.Suspense fallback={<ReviewsSkeleton />}>
        <Await
          resolve={reviews}
          errorElement={
            <div>Could not load reviews 😬</div>
          }
          children={(resolvedReviews) => (
            <Reviews items={resolvedReviews} />
          )}
        />
      </React.Suspense>
    </div>
  );
}
Copy

注意： <Await> 期望在 <React.Suspense> 内部渲染