{"id":2904,"date":"2024-11-10T11:25:11","date_gmt":"2024-11-10T03:25:11","guid":{"rendered":"https:\/\/fwq.ai\/blog\/2904\/"},"modified":"2024-11-10T11:25:11","modified_gmt":"2024-11-10T03:25:11","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8%e6%97%a0%e9%99%90%e6%9f%a5%e8%af%a2%ef%bc%88tanstack-query%ef%bc%89%e8%bf%9b%e8%a1%8c%e6%97%a0%e9%99%90%e6%bb%9a%e5%8a%a8","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/2904\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528\u65e0\u9650\u67e5\u8be2\uff08TanStack Query\uff09\u8fdb\u884c\u65e0\u9650\u6eda\u52a8"},"content":{"rendered":"

\u8fd9\u662f\u60a8\u7684\u5e16\u5b50\u7ffb\u8bd1\u6210\u82f1\u6587\uff1a<\/p>\n

\n

\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u5c06\u6559\u60a8\u5982\u4f55\u4f7f\u7528 tanstack \u67e5\u8be2\uff08\u7279\u522b\u662f\u65e0\u9650\u67e5\u8be2\uff09\u5b9e\u73b0\u65e0\u9650\u6eda\u52a8\u3002\u6211\u4eec\u5c06\u4f7f\u7528 vite \u521b\u5efa\u7167\u7247\u6e90\u5e76\u8bbe\u7f6e\u65e0\u9650\u6eda\u52a8\u3002\u9996\u5148\uff0c\u6253\u5f00\u7ec8\u7aef\u5e76\u8fd0\u884c\u4ee5\u4e0b\u547d\u4ee4\u6765\u514b\u9686\u5177\u6709\u57fa\u672c\u914d\u7f6e\u7684\u9879\u76ee\uff1a<\/p>\n

git clone --branch start https:\/\/github.com\/davi-rezende\/photos-feed.git\n\ncd photos-feed\nnpm i\n<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u4e00\u5207\u5c31\u7eea\uff01\u73b0\u5728\uff0c\u8ba9\u6211\u4eec\u4f7f\u7528 tanstack \u67e5\u8be2\u5e93\u5b9e\u73b0\u65e0\u9650\u6eda\u52a8\u529f\u80fd\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5b89\u88c5\u5b83\uff1a<\/p>\n
npm i @tanstack\/react-query\nnpm i axios\n<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u5728 app.tsx \u6587\u4ef6\u4e2d\uff0c\u60a8\u4f1a\u770b\u5230\u4ee3\u7801\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n
\"\u5982\u4f55\u4f7f\u7528\u65e0\u9650\u67e5\u8be2\uff08TanStack<\/p>\n
\u9996\u5148\uff0c\u6211\u4eec\u5c06\u4f7f\u7528 useinfinitequery \u66ff\u6362 useeffect\uff0cuseinfinitequery \u8d1f\u8d23\u7ba1\u7406\u65e0\u9650\u8bf7\u6c42\u3002\u6211\u4eec\u5fc5\u987b\u4e3a\u5176\u63d0\u4f9b\u4e24\u4e2a\u5c5e\u6027\uff1aquerykey \u548c queryfn\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n
const { \n  data, \n  isloading,\n  fetchnextpage,\n  isfetchingnextpage, \n  isfetching, \n  hasnextpage \n} = useinfinitequery({\n    queryfn: fetchphotos,\n    querykey: ['photos'],\n    initialpageparam: 1,\n    getnextpageparam: (lastpage) => {\n      return lastpage.nextpage\n    }\n})\n<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
 \u5404\u53c2\u6570\u8bf4\u660e\uff1a <\/h3>\n
    \n
  •  queryfn\uff1a\u8d1f\u8d23\u8fd4\u56de\u6211\u4eec\u8bf7\u6c42\u6570\u636e\u7684\u51fd\u6570\uff1b\u5b83\u63a5\u6536\u5f53\u524d\u9875\u9762\u4f5c\u4e3a\u53c2\u6570\u3002<\/li>\n
  •  querykey\uff1a\u5145\u5f53\u8bf7\u6c42\u7684\u6807\u8bc6\u7b26\uff0c\u4e5f\u5145\u5f53\u4f9d\u8d56\u9879\u6570\u7ec4\u3002\u6bcf\u6b21\u60a8\u5728\u5176\u4e2d\u4f20\u9012\u7684\u53d8\u91cf\u53d1\u751f\u53d8\u5316\u65f6\uff0cuseinfinitequery \u90fd\u4f1a\u81ea\u52a8\u91cd\u65b0\u83b7\u53d6\u3002<\/li>\n
  •  initialpageparam: \u521d\u59cb\u9ed8\u8ba4\u503c\u3002<\/li>\n
  •  getnextpageparam\uff1a\u63a5\u6536 queryfn \u51fd\u6570\u8fd4\u56de\u7684\u6240\u6709\u5185\u5bb9\uff0c\u5e76\u4e14\u5fc5\u987b\u8fd4\u56de\u8981\u8bf7\u6c42\u7684\u4e0b\u4e00\u4e2a\u9875\u7801\u3002<\/li>\n<\/ul>\n
    \u6211\u4eec\u9700\u8981\u4fee\u6539 fetchphotos \u51fd\u6570\uff1a<\/p>\n
    async function fetchphotos({ pageparam }: { pageparam: number }) {\n  const response = await api.get<imagedata[]>('\/photos', {\n    params: {\n      page: pageparam,\n      per_page: 5,\n    }\n  })\n\n  return {\n    data: response.data,\n    nextpage: pageparam + 1\n  }\n} \n<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    useinfinitequery \u94a9\u5b50\u8fd4\u56de\u9875\u9762\u4e2d\u7684\u6570\u636e\uff0c\u56e0\u6b64\u6211\u4eec\u7684\u6e32\u67d3\u4f1a\u7565\u6709\u53d8\u5316\uff1a<\/p>\n
    <main classname=\"h-screen w-screen bg-zinc-950 flex flex-col gap-6 p-6 items-center text-white overflow-auto\">\n  {isloading ? 'loading...' : (\n    <>\n      {data?.pages.map((group, i) => (\n        <div classname=\"flex flex-col gap-6\" key={i}>\n          {group.data.map(({ id, urls }) => (\n            @@##@@\n          ))}\n        <\/div>\n      ))}\n      <div>\n        <button\n          onclick={() => fetchnextpage()}\n          disabled={!hasnextpage || isfetchingnextpage}\n        >\n          {isfetchingnextpage\n            ? 'loading more...'\n            : hasnextpage\n              ? 'load more'\n              : 'nothing more to load'}\n        <\/button>\n      <\/div>\n      <div>{isfetching && !isfetchingnextpage ? 'fetching...' : null}<\/div>\n    <\/>\n  )}\n<\/main>\n<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u73b0\u5728\uff0c\u6bcf\u6b21\u7528\u6237\u5230\u8fbe\u6eda\u52a8\u672b\u5c3e\u5e76\u5355\u51fb\u201c\u52a0\u8f7d\u66f4\u591a\u201d\u6309\u94ae\u65f6\uff0c\u6570\u636e\u90fd\u4f1a\u81ea\u52a8\u9644\u52a0\u3002<\/p>\n
    \u8981\u5728\u7528\u6237\u5230\u8fbe\u6eda\u52a8\u672b\u5c3e\u65f6\u83b7\u53d6\u4e0b\u4e00\u9875\u800c\u4e0d\u9700\u8981\u5355\u51fb\u6309\u94ae\uff0c\u53ea\u9700\u6dfb\u52a0\u4ee5\u4e0b\u51fd\u6570\uff1a<\/p>\n
    function handlescroll(event: uievent<htmlelement>) {\n  const { scrolltop, clientheight, scrollheight } = event.currenttarget\n\n  if (scrolltop + clientheight >= scrollheight) {\n    fetchnextpage()\n  }\n}\n<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u5e76\u5728\u5305\u88c5\u5217\u8868\u7684 div \u4e2d\u6dfb\u52a0 onscroll \u4e8b\u4ef6\uff0c\u5e76\u8c03\u7528\u90a3\u91cc\u7684\u51fd\u6570\u3002\u5b8c\u6bd5\uff01\u73b0\u5728\uff0c\u6bcf\u6b21\u7528\u6237\u6eda\u52a8\u5230\u672b\u5c3e\u65f6\uff0c\u90fd\u4f1a\u81ea\u52a8\u52a0\u8f7d\u65b0\u6570\u636e\u3002<\/p>\n
    \u6700\u540e\uff0c\u60a8\u7684\u4ee3\u7801\u5e94\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n
    import { useInfiniteQuery } from \"@tanstack\/react-query\"\nimport { UIEvent } from \"react\"\nimport { api } from \".\/lib\/api\"\n\ntype ImageData = {\n  id: string,\n  urls: {\n    regular: string\n  }\n}\n\nexport function Home() {\n  async function fetchPhotos({ pageParam }: { pageParam: number }) {\n    const response = await api.get<ImageData[]>('\/photos', {\n      params: {\n        page: pageParam,\n        per_page: 5,\n      }\n    })\n\n    return {\n      data: response.data,\n      nextPage: pageParam + 1\n    }\n  } \n\n  const { data, isLoading, fetchNextPage, isFetchingNextPage, isFetching, hasNextPage } = useInfiniteQuery({\n    queryFn: fetchPhotos,\n    queryKey: ['photos'],\n    initialPageParam: 1,\n    getNextPageParam: (lastPage) => {\n      return lastPage.nextPage\n    }\n  })\n\n  function handleScroll(event: UIEvent<HTMLElement>) {\n    const { scrollTop, clientHeight, scrollHeight } = event.currentTarget\n\n    if (scrollTop + clientHeight >= scrollHeight) {\n      fetchNextPage()\n    }\n  };\n\n\n  return (\n    <main className=\"h-screen w-screen bg-zinc-950 flex flex-col gap-6 p-6 items-center text-white overflow-auto\" onScroll={handleScroll}>\n      {isLoading ? 'Loading...' : (\n        <>\n          {data?.pages.map((group, i) => (\n            <div className=\"flex flex-col gap-6\" key={i}>\n              {group.data.map(({ id, urls }) => (\n                @@##@@\n              ))}\n            <\/div>\n          ))}\n          <div>\n            <button\n              onClick={() => fetchNextPage()}\n              disabled={!hasNextPage || isFetchingNextPage}\n            >\n              {isFetchingNextPage\n                ? 'Loading more...'\n                : hasNextPage\n                  ? 'Load More'\n                  : 'Nothing more to load'}\n          <\/button>\n          <\/div>\n          <div>{isFetching && !isFetchingNextPage ? 'Fetching...' : null}<\/div>\n        <\/>\n      )}\n    <\/main>\n  )\n}\n<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u8c22\u8c22\uff01<\/p>\n
    \"\u5982\u4f55\u4f7f\u7528\u65e0\u9650\u67e5\u8be2\uff08TanStack
    \n\"\u5982\u4f55\u4f7f\u7528\u65e0\u9650\u67e5\u8be2\uff08TanStack <\/p>\n
    \u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u4f7f\u7528\u65e0\u9650\u67e5\u8be2\uff08TanStack Query\uff09\u8fdb\u884c\u65e0\u9650\u6eda\u52a8\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
    \u8fd9\u662f\u60a8\u7684\u5e16\u5b50\u7ffb\u8bd1\u6210\u82f1\u6587\uff1a \u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u5c06\u6559\u60a8\u5982\u4f55\u4f7f\u7528 tanstack \u67e5\u8be2\uff08\u7279\u522b\u662f\u65e0\u9650\u67e5\u8be2\uff09\u5b9e\u73b0\u65e0\u9650\u6eda\u52a8\u3002\u6211\u4eec\u5c06\u4f7f\u7528 vite \u521b\u5efa\u7167\u7247\u6e90\u5e76\u8bbe\u7f6e\u65e0\u9650\u6eda\u52a8\u3002\u9996\u5148\uff0c\u6253\u5f00\u7ec8\u7aef\u5e76\u8fd0\u884c\u4ee5\u4e0b\u547d\u4ee4\u6765\u514b\u9686\u5177\u6709\u57fa\u672c\u914d\u7f6e\u7684\u9879\u76ee\uff1a git clone –branch start https:\/\/github.com\/davi-rezende\/photos-feed.git cd photos-feed npm i \u767b\u5f55\u540e\u590d\u5236 \u4e00\u5207\u5c31\u7eea\uff01\u73b0\u5728\uff0c\u8ba9\u6211\u4eec\u4f7f\u7528 tanstack \u67e5\u8be2\u5e93\u5b9e\u73b0\u65e0\u9650\u6eda\u52a8\u529f\u80fd\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5b89\u88c5\u5b83\uff1a npm i @tanstack\/react-query npm i axios \u767b\u5f55\u540e\u590d\u5236 \u5728 app.tsx \u6587\u4ef6\u4e2d\uff0c\u60a8\u4f1a\u770b\u5230\u4ee3\u7801\u5982\u4e0b\u6240\u793a\uff1a \u9996\u5148\uff0c\u6211\u4eec\u5c06\u4f7f\u7528 useinfinitequery \u66ff\u6362 useeffect\uff0cuseinfinitequery \u8d1f\u8d23\u7ba1\u7406\u65e0\u9650\u8bf7\u6c42\u3002\u6211\u4eec\u5fc5\u987b\u4e3a\u5176\u63d0\u4f9b\u4e24\u4e2a\u5c5e\u6027\uff1aquerykey \u548c queryfn\uff0c\u5982\u4e0b\u6240\u793a\uff1a const { data, isloading, fetchnextpage, isfetchingnextpage, isfetching, hasnextpage } = useinfinitequery({ queryfn: fetchphotos, querykey: [‘photos’], initialpageparam: 1, getnextpageparam: (lastpage) […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-2904","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/2904","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=2904"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/2904\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=2904"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=2904"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=2904"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}