{"id":717,"date":"2026-02-08T00:41:02","date_gmt":"2026-02-07T16:41:02","guid":{"rendered":"https:\/\/blog.itsmygo.uk\/2026\/02\/08\/%e3%80%90react-%e7%b4%94%e5%89%8d%e7%ab%af%e5%af%a6%e6%88%b0%e3%80%9103-tanstack-query%ef%bc%9a%e8%b3%87%e6%96%99%e6%8a%93%e5%8f%96%e8%88%87%e5%bf%ab%e5%8f%96%e7%ae%a1%e7%90%86\/"},"modified":"2026-02-08T00:41:02","modified_gmt":"2026-02-07T16:41:02","slug":"%e3%80%90react-%e7%b4%94%e5%89%8d%e7%ab%af%e5%af%a6%e6%88%b0%e3%80%9103-tanstack-query%ef%bc%9a%e8%b3%87%e6%96%99%e6%8a%93%e5%8f%96%e8%88%87%e5%bf%ab%e5%8f%96%e7%ae%a1%e7%90%86","status":"publish","type":"post","link":"https:\/\/blog.itsmygo.uk\/wordpress\/2026\/02\/08\/%e3%80%90react-%e7%b4%94%e5%89%8d%e7%ab%af%e5%af%a6%e6%88%b0%e3%80%9103-tanstack-query%ef%bc%9a%e8%b3%87%e6%96%99%e6%8a%93%e5%8f%96%e8%88%87%e5%bf%ab%e5%8f%96%e7%ae%a1%e7%90%86\/","title":{"rendered":"\u3010React \u7d14\u524d\u7aef\u5be6\u6230\u3011#03 TanStack Query\uff1a\u8cc7\u6599\u6293\u53d6\u8207\u5feb\u53d6\u7ba1\u7406"},"content":{"rendered":"\n<div id=\"quiz-99945c44\">\n<style>\n#quiz-99945c44 .question {\n        background: white;\n        border-radius: 8px;\n        padding: 20px;\n        margin: 20px 0;\n        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);\n      }#quiz-99945c44 .question h3 {\n        margin-top: 0;\n        color: #333;\n      }#quiz-99945c44 .options {\n        list-style: none;\n        padding: 0;\n      }#quiz-99945c44 .options li {\n        padding: 12px 15px;\n        margin: 8px 0;\n        border: 2px solid #ddd;\n        border-radius: 6px;\n        cursor: pointer;\n        transition: all 0.2s;\n      }#quiz-99945c44 .options li:hover:not(.disabled) {\n        border-color: #4caf50;\n        background: #f0fff0;\n      }#quiz-99945c44 .options li.correct {\n        border-color: #4caf50;\n        background: #e8f5e9;\n      }#quiz-99945c44 .options li.wrong {\n        border-color: #f44336;\n        background: #ffebee;\n      }#quiz-99945c44 .options li.disabled {\n        cursor: default;\n        opacity: 0.7;\n      }#quiz-99945c44 .options li.show-answer {\n        border-color: #4caf50;\n        background: #e8f5e9;\n      }#quiz-99945c44 .feedback {\n        margin-top: 15px;\n        padding: 12px;\n        border-radius: 6px;\n        display: none;\n      }#quiz-99945c44 .feedback.correct {\n        background: #e8f5e9;\n        color: #2e7d32;\n        display: block;\n      }#quiz-99945c44 .feedback.wrong {\n        background: #ffebee;\n        color: #c62828;\n        display: block;\n      }#quiz-99945c44 .score {\n        text-align: center;\n        font-size: 1.5em;\n        padding: 20px;\n        background: white;\n        border-radius: 8px;\n        margin-top: 20px;\n      }#quiz-99945c44 .code-block {\n        background: #1e1e1e;\n        color: #d4d4d4;\n        padding: 14px;\n        border-radius: 6px;\n        font-family: \"Monaco\", \"Consolas\", \"Courier New\", monospace;\n        font-size: 0.9em;\n        overflow-x: auto;\n        margin: 12px 0;\n        white-space: pre-wrap;\n      }\n<\/style>\n<h1>\u6e2c\u9a57\uff1aTanStack Query \u8cc7\u6599\u6293\u53d6\u8207\u5feb\u53d6\u7ba1\u7406<\/h1>\n    <p>\u5171 5 \u984c\uff0c\u9ede\u9078\u7b54\u6848\u5f8c\u6703\u7acb\u5373\u986f\u793a\u7d50\u679c<\/p>\n\n    <div class=\"question\" id=\"q1\">\n      <h3>1. \u70ba\u4ec0\u9ebc\u5f9e API \u6293\u56de\u4f86\u7684\u8cc7\u6599\uff08Server State\uff09\u4e0d\u9069\u5408\u53ea\u7528 <code>useState<\/code> \u7ba1\u7406\uff1f<\/h3>\n      <ul class=\"options\">\n        <li onclick=\"checkAnswer(1, 'A', 'C')\">A. \u56e0\u70ba <code>useState<\/code> \u4e0d\u652f\u63f4\u5132\u5b58\u7269\u4ef6\u6216\u9663\u5217<\/li>\n        <li onclick=\"checkAnswer(1, 'B', 'C')\">B. \u56e0\u70ba <code>useState<\/code> \u7684\u6548\u80fd\u6bd4 TanStack Query \u5dee<\/li>\n        <li onclick=\"checkAnswer(1, 'C', 'C')\">C. \u56e0\u70ba API \u8cc7\u6599\u53ef\u80fd\u88ab\u5225\u4eba\u4fee\u6539\u3001\u96a8\u6642\u904e\u671f\uff0c\u9700\u8981\u5feb\u53d6\u548c\u81ea\u52d5\u91cd\u65b0\u6293\u53d6\u6a5f\u5236<\/li>\n        <li onclick=\"checkAnswer(1, 'D', 'C')\">D. \u56e0\u70ba <code>useState<\/code> \u53ea\u80fd\u5728 class component \u4e2d\u4f7f\u7528<\/li>\n      <\/ul>\n      <div class=\"feedback\" id=\"fb1\"><\/div>\n    <\/div>\n\n    <div class=\"question\" id=\"q2\">\n      <h3>2. \u5728 <code>useQuery<\/code> \u4e2d\uff0c<code>queryKey<\/code> \u7684\u4f5c\u7528\u662f\u4ec0\u9ebc\uff1f<\/h3>\n      <div class=\"code-block\">useQuery({\n  queryKey: [&#8216;posts&#8217;, 5],\n  queryFn: () => fetchPost(5),\n});<\/div>\n      <ul class=\"options\">\n        <li onclick=\"checkAnswer(2, 'A', 'B')\">A. \u5b9a\u7fa9 API \u7684 URL \u8def\u5f91<\/li>\n        <li onclick=\"checkAnswer(2, 'B', 'B')\">B. \u4f5c\u70ba\u9019\u4efd\u8cc7\u6599\u7684\u552f\u4e00\u8b58\u5225\uff0c\u7528\u4f86\u7ba1\u7406\u5feb\u53d6<\/li>\n        <li onclick=\"checkAnswer(2, 'C', 'B')\">C. \u8a2d\u5b9a\u8cc7\u6599\u7684\u578b\u5225\u6aa2\u67e5\u898f\u5247<\/li>\n        <li onclick=\"checkAnswer(2, 'D', 'B')\">D. \u6307\u5b9a\u8cc7\u6599\u8981\u5b58\u5728\u54ea\u500b React context \u4e2d<\/li>\n      <\/ul>\n      <div class=\"feedback\" id=\"fb2\"><\/div>\n    <\/div>\n\n    <div class=\"question\" id=\"q3\">\n      <h3>3. \u4f7f\u7528\u8005\u7b2c\u4e00\u6b21\u9032\u5165\u9801\u9762\u6642 <code>isLoading = true<\/code>\uff0c\u96e2\u958b\u5f8c\u518d\u56de\u4f86\u6642 <code>isLoading = false<\/code> \u4f46 <code>isFetching = true<\/code>\u3002\u9019\u4ee3\u8868\u4ec0\u9ebc\uff1f<\/h3>\n      <ul class=\"options\">\n        <li onclick=\"checkAnswer(3, 'A', 'D')\">A. \u8cc7\u6599\u6293\u53d6\u5931\u6557\u4e86\uff0c\u6b63\u5728\u91cd\u8a66<\/li>\n        <li onclick=\"checkAnswer(3, 'B', 'D')\">B. \u5feb\u53d6\u5df2\u7d93\u88ab\u6e05\u6389\uff0c\u5fc5\u9808\u5f9e\u982d\u6293\u53d6<\/li>\n        <li onclick=\"checkAnswer(3, 'C', 'D')\">C. \u4f7f\u7528\u8005\u7684\u7db2\u8def\u9023\u7dda\u4e0d\u7a69\u5b9a<\/li>\n        <li onclick=\"checkAnswer(3, 'D', 'D')\">D. \u6709\u820a\u7684\u5feb\u53d6\u8cc7\u6599\u53ef\u4ee5\u5148\u986f\u793a\uff0c\u540c\u6642\u80cc\u666f\u6b63\u5728\u91cd\u65b0\u6293\u53d6\u6700\u65b0\u8cc7\u6599<\/li>\n      <\/ul>\n      <div class=\"feedback\" id=\"fb3\"><\/div>\n    <\/div>\n\n    <div class=\"question\" id=\"q4\">\n      <h3>4. \u5728 <code>useMutation<\/code> \u7684 <code>onSuccess<\/code> \u4e2d\u547c\u53eb <code>invalidateQueries({ queryKey: ['posts'] })<\/code>\uff0c\u6703\u767c\u751f\u4ec0\u9ebc\u4e8b\uff1f<\/h3>\n      <ul class=\"options\">\n        <li onclick=\"checkAnswer(4, 'A', 'C')\">A. \u7acb\u523b\u522a\u9664\u6240\u6709 <code>['posts']<\/code> \u76f8\u95dc\u7684\u5feb\u53d6\u8cc7\u6599<\/li>\n        <li onclick=\"checkAnswer(4, 'B', 'C')\">B. \u53ea\u6703\u5237\u65b0 <code>['posts']<\/code> \u9019\u4e00\u500b key\uff0c\u4e0d\u5f71\u97ff <code>['posts', 5]<\/code><\/li>\n        <li onclick=\"checkAnswer(4, 'C', 'C')\">C. \u6240\u6709\u4ee5 <code>['posts']<\/code> \u958b\u982d\u7684\u5feb\u53d6\u90fd\u6703\u88ab\u6a19\u8a18\u70ba\u904e\u671f\uff0c\u4e26\u89f8\u767c\u91cd\u65b0\u6293\u53d6<\/li>\n        <li onclick=\"checkAnswer(4, 'D', 'C')\">D. \u6703\u6e05\u7a7a\u6574\u500b QueryClient \u7684\u6240\u6709\u5feb\u53d6<\/li>\n      <\/ul>\n      <div class=\"feedback\" id=\"fb4\"><\/div>\n    <\/div>\n\n    <div class=\"question\" id=\"q5\">\n      <h3>5. Optimistic Updates\uff08\u6a02\u89c0\u66f4\u65b0\uff09\u7684\u6838\u5fc3\u4e09\u6b65\u9a5f\uff0c\u6b63\u78ba\u9806\u5e8f\u662f\u4ec0\u9ebc\uff1f<\/h3>\n      <ul class=\"options\">\n        <li onclick=\"checkAnswer(5, 'A', 'B')\">A. \u9001\u51fa API \u8acb\u6c42 \u2192 \u7b49\u5f85\u56de\u61c9 \u2192 \u66f4\u65b0\u756b\u9762<\/li>\n        <li onclick=\"checkAnswer(5, 'B', 'B')\">B. \u5728 <code>onMutate<\/code> \u5099\u4efd\u820a\u8cc7\u6599\u4e26\u5148\u6539\u5feb\u53d6 \u2192 \u9001 API \u2192 \u5931\u6557\u6642\u5728 <code>onError<\/code> \u7528\u5099\u4efd\u56de\u6efe<\/li>\n        <li onclick=\"checkAnswer(5, 'C', 'B')\">C. \u5148\u6539\u5feb\u53d6 \u2192 \u9001 API \u2192 \u6210\u529f\u6642\u624d\u5099\u4efd\u820a\u8cc7\u6599<\/li>\n        <li onclick=\"checkAnswer(5, 'D', 'B')\">D. \u5728 <code>onSuccess<\/code> \u5099\u4efd\u8cc7\u6599 \u2192 \u6539\u5feb\u53d6 \u2192 \u5728 <code>onSettled<\/code> \u56de\u6efe<\/li>\n      <\/ul>\n      <div class=\"feedback\" id=\"fb5\"><\/div>\n    <\/div>\n\n    <div class=\"score\" id=\"score\" style=\"display:none;\"><\/div>\n<script>\n\n      let answered = 0;\n      let correct = 0;\n      const total = 5;\n      const explanations = {\n        1: \"Server State\uff08\u5f9e API \u6293\u56de\u4f86\u7684\u8cc7\u6599\uff09\u7684\u7279\u6027\u662f\u300c\u5225\u4eba\u4e5f\u53ef\u80fd\u6539\uff0c\u96a8\u6642\u53ef\u80fd\u904e\u671f\u300d\u3002<code>useState<\/code> \u9069\u5408\u7ba1\u7406\u4f60\u5b8c\u5168\u63a7\u5236\u7684 Client State\uff08\u5982\u8868\u55ae\u8f38\u5165\u3001UI \u958b\u95dc\uff09\uff0c\u4f46\u7121\u6cd5\u81ea\u52d5\u8655\u7406\u5feb\u53d6\u3001\u91cd\u65b0\u6293\u53d6\u548c\u8cc7\u6599\u540c\u6b65\u7684\u554f\u984c\u3002\",\n        2: \"<code>queryKey<\/code> \u662f\u4e00\u500b\u9663\u5217\uff0c\u4f5c\u70ba\u9019\u4efd\u8cc7\u6599\u5728\u5feb\u53d6\u4e2d\u7684\u552f\u4e00\u8b58\u5225\u3002<code>['posts']<\/code> \u548c <code>['posts', 5]<\/code> \u662f\u5169\u4efd\u4e0d\u540c\u7684\u5feb\u53d6\u3002TanStack Query \u7528 queryKey \u4f86\u5224\u65b7\u300c\u9019\u662f\u4e0d\u662f\u540c\u4e00\u4efd\u8cc7\u6599\u300d\uff0c\u4e26\u64da\u6b64\u6c7a\u5b9a\u662f\u5426\u4f7f\u7528\u5feb\u53d6\u6216\u91cd\u65b0\u6293\u53d6\u3002\",\n        3: \"\u9019\u5c31\u662f stale-while-revalidate \u7b56\u7565\u7684\u9ad4\u73fe\u3002<code>isLoading = false<\/code> \u8868\u793a\u5feb\u53d6\u88e1\u6709\u8cc7\u6599\u53ef\u4ee5\u5148\u986f\u793a\uff08\u4e0d\u9700\u8981\u7a7a\u767d\u7b49\u5f85\uff09\uff0c<code>isFetching = true<\/code> \u8868\u793a\u80cc\u666f\u6b63\u5728\u91cd\u65b0\u6293\u53d6\u6700\u65b0\u8cc7\u6599\u3002\u4f7f\u7528\u8005\u770b\u5230\u7684\u662f\u77ac\u9593\u986f\u793a\u820a\u8cc7\u6599\uff0c\u8cc7\u6599\u66f4\u65b0\u5f8c\u756b\u9762\u6703\u81ea\u52d5\u5237\u65b0\u3002\",\n        4: \"<code>invalidateQueries<\/code> \u4f7f\u7528\u524d\u7db4\u5339\u914d\u3002\u50b3\u5165 <code>['posts']<\/code> \u6703\u5339\u914d\u6240\u6709\u4ee5 <code>'posts'<\/code> \u958b\u982d\u7684 queryKey\uff0c\u5305\u62ec <code>['posts']<\/code>\u3001<code>['posts', 5]<\/code>\u3001<code>['posts', { status: 'draft' }]<\/code> \u7b49\uff0c\u8b93\u5b83\u5011\u90fd\u88ab\u6a19\u8a18\u70ba\u904e\u671f\u4e26\u91cd\u65b0\u6293\u53d6\u3002\u5b83\u4e0d\u662f\u522a\u9664\u5feb\u53d6\uff0c\u4e5f\u4e0d\u662f\u53ea\u5339\u914d\u5b8c\u5168\u76f8\u540c\u7684 key\u3002\",\n        5: \"Optimistic Updates \u7684\u6838\u5fc3\u662f\u300c\u5099\u4efd\u3001\u5148\u6539\u3001\u5931\u6557\u56de\u6efe\u300d\u3002\u5728 <code>onMutate<\/code> \u4e2d\u5148\u5099\u4efd\u820a\u8cc7\u6599\u4e26\u76f4\u63a5\u4fee\u6539\u5feb\u53d6\uff08\u8b93\u756b\u9762\u7acb\u523b\u66f4\u65b0\uff09\uff0cAPI \u8acb\u6c42\u5728\u80cc\u666f\u9001\u51fa\u3002\u5982\u679c\u5931\u6557\uff0c\u5728 <code>onError<\/code> \u4e2d\u7528\u5099\u4efd\u7684\u820a\u8cc7\u6599\u56de\u6efe\u3002\u6700\u5f8c\u5728 <code>onSettled<\/code> \u4e2d\u91cd\u65b0\u6293\u53d6\u78ba\u4fdd\u8cc7\u6599\u540c\u6b65\u3002\"\n      };\n\n      function checkAnswer(qNum, selected, correctAns) {\n        const question = document.getElementById(\"q\" + qNum);\n        if (question.classList.contains(\"answered\")) return;\n\n        question.classList.add(\"answered\");\n        answered++;\n\n        const options = question.querySelectorAll(\".options li\");\n        options.forEach((opt) => {\n          opt.classList.add(\"disabled\");\n          if (opt.textContent.startsWith(correctAns + \".\")) {\n            opt.classList.add(\"show-answer\");\n          }\n        });\n\n        const feedback = document.getElementById(\"fb\" + qNum);\n        if (selected === correctAns) {\n          correct++;\n          feedback.className = \"feedback correct\";\n          feedback.innerHTML = \"\u2713 \u6b63\u78ba\uff01\" + explanations[qNum];\n        } else {\n          feedback.className = \"feedback wrong\";\n          feedback.innerHTML =\n            \"\u2717 \u932f\u8aa4\u3002\u6b63\u78ba\u7b54\u6848\u662f \" + correctAns + \"\u3002\" + explanations[qNum];\n          options.forEach((opt) => {\n            if (opt.textContent.startsWith(selected + \".\")) {\n              opt.classList.add(\"wrong\");\n            }\n          });\n        }\n\n        if (answered === total) {\n          const scoreDiv = document.getElementById(\"score\");\n          scoreDiv.style.display = \"block\";\n          scoreDiv.innerHTML =\n            \"\u6e2c\u9a57\u5b8c\u6210\uff01\u5f97\u5206\uff1a\" +\n            correct +\n            \" \/ \" +\n            total +\n            (correct === total\n              ? \" \ud83c\udf89 \u5168\u5c0d\uff01\"\n              : correct >= Math.ceil(total * 0.6)\n                ? \" \ud83d\udc4d \u4e0d\u932f\uff01\"\n                : \" \ud83d\udcda \u518d\u8907\u7fd2\u4e00\u4e0b\u5427\");\n        }\n      }\n    \n<\/script>\n<\/div>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">**\u7cfb\u5217**\uff1aReact \u7d14\u524d\u7aef\u5be6\u6230\uff08\u7b2c 3 \u7bc7\uff0c\u5171 5 \u7bc7\uff09<br>**\u96e3\u5ea6**\uff1aL1-\u8d77\u6b65<br>**\u524d\u7f6e\u77e5\u8b58**\uff1a\u8b80\u5b8c\u672c\u7cfb\u5217\u7b2c 1-2 \u7bc7\u3001\u57fa\u672c\u7684 async\/await \u548c fetch API \u6982\u5ff5<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e00\u53e5\u8a71\u8aaa\u660e<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">TanStack Query \u5e6b\u4f60\u7ba1\u7406\u300c\u5f9e API \u6293\u56de\u4f86\u7684\u8cc7\u6599\u300d\u2014\u2014\u81ea\u52d5\u5feb\u53d6\u3001\u81ea\u52d5\u91cd\u65b0\u6293\u53d6\u3001\u81ea\u52d5\u8655\u7406\u8f09\u5165\u548c\u932f\u8aa4\u72c0\u614b\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u70ba\u4ec0\u9ebc\u9700\u8981 TanStack Query\uff1f<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Server State vs Client State<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u7576\u4f60\u7528 AI \u751f\u6210 React \u7a0b\u5f0f\u78bc\u6642\uff0c\u4f60\u6703\u770b\u5230\u5169\u7a2e\u5b8c\u5168\u4e0d\u540c\u7684\u300c\u72c0\u614b\u300d\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table>\n<thead>\n<tr>\n<th>Client State\uff08\u5ba2\u6236\u7aef\u72c0\u614b\uff09<\/th>\n<th>Server State\uff08\u4f3a\u670d\u5668\u72c0\u614b\uff09<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u8cc7\u6599\u4f86\u6e90<\/td>\n<td>\u4f7f\u7528\u8005\u64cd\u4f5c\u7522\u751f<\/td>\n<td>\u5f9e API \/ \u8cc7\u6599\u5eab\u6293\u56de\u4f86<\/td>\n<\/tr>\n<tr>\n<td>\u8209\u4f8b<\/td>\n<td>\u8868\u55ae\u8f38\u5165\u3001\u5074\u908a\u6b04\u958b\u95dc\u3001\u6df1\u8272\u6a21\u5f0f<\/td>\n<td>\u4f7f\u7528\u8005\u6e05\u55ae\u3001\u6587\u7ae0\u5217\u8868\u3001\u8a02\u55ae\u8cc7\u6599<\/td>\n<\/tr>\n<tr>\n<td>\u7279\u6027<\/td>\n<td>\u4f60\u5b8c\u5168\u63a7\u5236\uff0c\u6539\u4e86\u5c31\u6539\u4e86<\/td>\n<td>\u5225\u4eba\u4e5f\u53ef\u80fd\u6539\uff0c\u96a8\u6642\u53ef\u80fd\u904e\u671f<\/td>\n<\/tr>\n<tr>\n<td>\u9069\u5408\u7684\u5de5\u5177<\/td>\n<td><code>useState<\/code>\u3001Zustand<\/td>\n<td><strong>TanStack Query<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7ffb\u8b6f<\/strong>\uff1a\u8868\u55ae\u6253\u4e86\u4ec0\u9ebc\u5b57\u3001\u9078\u55ae\u958b\u6216\u95dc\u2014\u2014\u9019\u4e9b\u4f60\u81ea\u5df1\u7ba1\u5c31\u597d\uff08<code>useState<\/code>\uff09\u3002\u4f46\u662f\u300c\u5f8c\u7aef\u90a3\u908a\u7684\u6587\u7ae0\u5217\u8868\u300d\u53ef\u80fd\u96a8\u6642\u6709\u4eba\u65b0\u589e\u522a\u9664\uff0c\u4f60\u4e0d\u80fd\u53ea\u5b58\u4e00\u4efd\u5c31\u4e0d\u7ba1\u4e86\u2014\u2014\u9019\u5c31\u662f TanStack Query \u8981\u89e3\u6c7a\u7684\u554f\u984c\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e0d\u7528 TanStack Query \u6642\uff0c\u4f60\u53ef\u80fd\u6703\u770b\u5230\u9019\u7a2e\u5beb\u6cd5<\/h3>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-1\" data-shcb-language-name=\"JavaScript\" data-shcb-language-slug=\"javascript\"><span><code class=\"hljs language-javascript\"><span class=\"hljs-function\"><span class=\"hljs-keyword\">function<\/span> <span class=\"hljs-title\">PostList<\/span>(<span class=\"hljs-params\"><\/span>) <\/span>{\n  <span class=\"hljs-keyword\">const<\/span> &#91;posts, setPosts] = useState(&#91;]);       <span class=\"hljs-comment\">\/\/ \u5b58\u8cc7\u6599<\/span>\n  <span class=\"hljs-keyword\">const<\/span> &#91;loading, setLoading] = useState(<span class=\"hljs-literal\">true<\/span>); <span class=\"hljs-comment\">\/\/ \u5b58\u8f09\u5165\u72c0\u614b<\/span>\n  <span class=\"hljs-keyword\">const<\/span> &#91;error, setError] = useState(<span class=\"hljs-literal\">null<\/span>);     <span class=\"hljs-comment\">\/\/ \u5b58\u932f\u8aa4<\/span>\n\n  useEffect(<span class=\"hljs-function\"><span class=\"hljs-params\">()<\/span> =&gt;<\/span> {\n    setLoading(<span class=\"hljs-literal\">true<\/span>);\n    fetch(<span class=\"hljs-string\">'\/api\/posts'<\/span>)\n      .then(<span class=\"hljs-function\"><span class=\"hljs-params\">res<\/span> =&gt;<\/span> res.json())\n      .then(<span class=\"hljs-function\"><span class=\"hljs-params\">data<\/span> =&gt;<\/span> setPosts(data))\n      .catch(<span class=\"hljs-function\"><span class=\"hljs-params\">err<\/span> =&gt;<\/span> setError(err))\n      .finally(<span class=\"hljs-function\"><span class=\"hljs-params\">()<\/span> =&gt;<\/span> setLoading(<span class=\"hljs-literal\">false<\/span>));\n  }, &#91;]);\n\n  <span class=\"hljs-keyword\">if<\/span> (loading) <span class=\"hljs-keyword\">return<\/span> <span class=\"xml\"><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">p<\/span>&gt;<\/span>Loading...<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">p<\/span>&gt;<\/span><\/span>;\n  <span class=\"hljs-keyword\">if<\/span> (error) <span class=\"hljs-keyword\">return<\/span> <span class=\"xml\"><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">p<\/span>&gt;<\/span>Error!<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">p<\/span>&gt;<\/span><\/span>;\n  <span class=\"hljs-keyword\">return<\/span> <span class=\"xml\"><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">ul<\/span>&gt;<\/span>{posts.map(p =&gt; <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">li<\/span> <span class=\"hljs-attr\">key<\/span>=<span class=\"hljs-string\">{p.id}<\/span>&gt;<\/span>{p.title}<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">li<\/span>&gt;<\/span>)}<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">ul<\/span>&gt;<\/span><\/span>;\n}\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-1\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">JavaScript<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">javascript<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>\u554f\u984c\u5728\u54ea\uff1f<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li>\u6bcf\u500b\u5143\u4ef6\u90fd\u8981\u81ea\u5df1\u5beb loading \/ error \u72c0\u614b<\/li>\n\n\n<li>\u6c92\u6709\u5feb\u53d6\uff1a\u5207\u63db\u9801\u9762\u518d\u56de\u4f86\uff0c\u53c8\u8981\u91cd\u65b0\u6293<\/li>\n\n\n<li>\u6c92\u6709\u81ea\u52d5\u91cd\u65b0\u6293\u53d6\uff1a\u8cc7\u6599\u904e\u671f\u4e86\u4e5f\u4e0d\u77e5\u9053<\/li>\n\n\n<li>\u591a\u500b\u5143\u4ef6\u7528\u540c\u4e00\u4efd\u8cc7\u6599\u6642\uff0c\u5404\u6293\u5404\u7684<\/li>\n\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u7528 TanStack Query \u5f8c\u7684\u540c\u6a23\u529f\u80fd<\/h3>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-2\" data-shcb-language-name=\"JavaScript\" data-shcb-language-slug=\"javascript\"><span><code class=\"hljs language-javascript\"><span class=\"hljs-function\"><span class=\"hljs-keyword\">function<\/span> <span class=\"hljs-title\">PostList<\/span>(<span class=\"hljs-params\"><\/span>) <\/span>{\n  <span class=\"hljs-keyword\">const<\/span> { <span class=\"hljs-attr\">data<\/span>: posts, isLoading, error } = useQuery({\n    <span class=\"hljs-attr\">queryKey<\/span>: &#91;<span class=\"hljs-string\">'posts'<\/span>],\n    <span class=\"hljs-attr\">queryFn<\/span>: <span class=\"hljs-function\"><span class=\"hljs-params\">()<\/span> =&gt;<\/span> fetch(<span class=\"hljs-string\">'\/api\/posts'<\/span>).then(<span class=\"hljs-function\"><span class=\"hljs-params\">res<\/span> =&gt;<\/span> res.json()),\n  });\n\n  <span class=\"hljs-keyword\">if<\/span> (isLoading) <span class=\"hljs-keyword\">return<\/span> <span class=\"xml\"><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">p<\/span>&gt;<\/span>Loading...<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">p<\/span>&gt;<\/span><\/span>;\n  <span class=\"hljs-keyword\">if<\/span> (error) <span class=\"hljs-keyword\">return<\/span> <span class=\"xml\"><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">p<\/span>&gt;<\/span>Error!<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">p<\/span>&gt;<\/span><\/span>;\n  <span class=\"hljs-keyword\">return<\/span> <span class=\"xml\"><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">ul<\/span>&gt;<\/span>{posts.map(p =&gt; <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">li<\/span> <span class=\"hljs-attr\">key<\/span>=<span class=\"hljs-string\">{p.id}<\/span>&gt;<\/span>{p.title}<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">li<\/span>&gt;<\/span>)}<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">ul<\/span>&gt;<\/span><\/span>;\n}\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-2\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">JavaScript<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">javascript<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7ffb\u8b6f<\/strong>\uff1a\u300c\u53bb\u6293 <code>\/api\/posts<\/code> \u7684\u8cc7\u6599\uff0c\u7528 <code>'posts'<\/code> \u9019\u500b\u540d\u5b57\u5b58\u8d77\u4f86\uff08\u5feb\u53d6\uff09\u3002\u8f09\u5165\u4e2d\u3001\u51fa\u932f\u3001\u6210\u529f\u7684\u72c0\u614b\u6211\u90fd\u5e6b\u4f60\u7ba1\u597d\u4e86\u3002\u300d<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">QueryClientProvider\uff1a\u521d\u59cb\u5316\u8a2d\u5b9a<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u4f60\u7684 App \u6700\u5916\u5c64\uff0c\u4f60\u6703\u770b\u5230\u9019\u6bb5\u8a2d\u5b9a\u3002\u9019\u662f TanStack Query \u7684\u8d77\u9ede\u3002<\/p>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-3\" data-shcb-language-name=\"JavaScript\" data-shcb-language-slug=\"javascript\"><span><code class=\"hljs language-javascript\"><span class=\"hljs-keyword\">import<\/span> { QueryClient, QueryClientProvider } <span class=\"hljs-keyword\">from<\/span> <span class=\"hljs-string\">'@tanstack\/react-query'<\/span>;\n\n<span class=\"hljs-keyword\">const<\/span> queryClient = <span class=\"hljs-keyword\">new<\/span> QueryClient({\n  <span class=\"hljs-attr\">defaultOptions<\/span>: {\n    <span class=\"hljs-attr\">queries<\/span>: {\n      <span class=\"hljs-attr\">staleTime<\/span>: <span class=\"hljs-number\">1000<\/span> * <span class=\"hljs-number\">60<\/span> * <span class=\"hljs-number\">5<\/span>,  <span class=\"hljs-comment\">\/\/ 5 \u5206\u9418\u5167\u7b97\u300c\u65b0\u9bae\u300d<\/span>\n      <span class=\"hljs-attr\">gcTime<\/span>: <span class=\"hljs-number\">1000<\/span> * <span class=\"hljs-number\">60<\/span> * <span class=\"hljs-number\">30<\/span>,    <span class=\"hljs-comment\">\/\/ \u5feb\u53d6\u4fdd\u7559 30 \u5206\u9418<\/span>\n    },\n  },\n});\n\n<span class=\"hljs-function\"><span class=\"hljs-keyword\">function<\/span> <span class=\"hljs-title\">App<\/span>(<span class=\"hljs-params\"><\/span>) <\/span>{\n  <span class=\"hljs-keyword\">return<\/span> (\n    <span class=\"xml\"><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">QueryClientProvider<\/span> <span class=\"hljs-attr\">client<\/span>=<span class=\"hljs-string\">{queryClient}<\/span>&gt;<\/span>\n      <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">RouterOrYourApp<\/span> \/&gt;<\/span>\n    <span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">QueryClientProvider<\/span>&gt;<\/span><\/span>\n  );\n}\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-3\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">JavaScript<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">javascript<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">\u9010\u884c\u7ffb\u8b6f<\/h3>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-4\" data-shcb-language-name=\"JavaScript\" data-shcb-language-slug=\"javascript\"><span><code class=\"hljs language-javascript\"><span class=\"hljs-keyword\">const<\/span> queryClient = <span class=\"hljs-keyword\">new<\/span> QueryClient({       <span class=\"hljs-comment\">\/\/ \u5efa\u7acb\u4e00\u500b\u5feb\u53d6\u7ba1\u7406\u5668<\/span>\n  <span class=\"hljs-attr\">defaultOptions<\/span>: {\n    <span class=\"hljs-attr\">queries<\/span>: {\n      <span class=\"hljs-attr\">staleTime<\/span>: <span class=\"hljs-number\">1000<\/span> * <span class=\"hljs-number\">60<\/span> * <span class=\"hljs-number\">5<\/span>,             <span class=\"hljs-comment\">\/\/ \u8cc7\u6599\u6293\u56de\u4f86\u5f8c 5 \u5206\u9418\u5167\u4e0d\u6703\u91cd\u65b0\u6293<\/span>\n      <span class=\"hljs-attr\">gcTime<\/span>: <span class=\"hljs-number\">1000<\/span> * <span class=\"hljs-number\">60<\/span> * <span class=\"hljs-number\">30<\/span>,               <span class=\"hljs-comment\">\/\/ \u6c92\u4eba\u7528\u7684\u5feb\u53d6 30 \u5206\u9418\u5f8c\u624d\u6e05\u6389<\/span>\n    },\n  },\n});\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-4\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">JavaScript<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">javascript<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-5\" data-shcb-language-name=\"HTML, XML\" data-shcb-language-slug=\"xml\"><span><code class=\"hljs language-xml\"><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">QueryClientProvider<\/span> <span class=\"hljs-attr\">client<\/span>=<span class=\"hljs-string\">{queryClient}<\/span>&gt;<\/span>   {\/* \u628a\u5feb\u53d6\u7ba1\u7406\u5668\u63d0\u4f9b\u7d66\u6574\u500b App *\/}\n  <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">RouterOrYourApp<\/span> \/&gt;<\/span>\n<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">QueryClientProvider<\/span>&gt;<\/span>\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-5\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">HTML, XML<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">xml<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>\u77e5\u9053\u5c31\u597d<\/strong>\uff1a<code>staleTime<\/code> \u548c <code>gcTime<\/code> \u9019\u88e1\u8a2d\u7684\u662f\u300c\u5168\u57df\u9810\u8a2d\u503c\u300d\u3002\u6bcf\u500b <code>useQuery<\/code> \u53ef\u4ee5\u81ea\u5df1\u8986\u84cb\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">useQuery\uff1a\u8b80\u53d6\u8cc7\u6599\u7684\u6838\u5fc3<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u6700\u5c0f\u7bc4\u4f8b<\/h3>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-6\" data-shcb-language-name=\"JavaScript\" data-shcb-language-slug=\"javascript\"><span><code class=\"hljs language-javascript\"><span class=\"hljs-keyword\">const<\/span> { data, isLoading, error } = useQuery({\n  <span class=\"hljs-attr\">queryKey<\/span>: &#91;<span class=\"hljs-string\">'posts'<\/span>],\n  <span class=\"hljs-attr\">queryFn<\/span>: <span class=\"hljs-function\"><span class=\"hljs-params\">()<\/span> =&gt;<\/span> fetch(<span class=\"hljs-string\">'\/api\/posts'<\/span>).then(<span class=\"hljs-function\"><span class=\"hljs-params\">res<\/span> =&gt;<\/span> res.json()),\n});\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-6\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">JavaScript<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">javascript<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">\u6838\u5fc3\u6982\u5ff5\u7ffb\u8b6f<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table>\n<thead>\n<tr>\n<th>\u4f60\u6703\u770b\u5230<\/th>\n<th>\u610f\u601d<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><code>queryKey: ['posts']<\/code><\/td>\n<td>\u9019\u4efd\u8cc7\u6599\u7684\u540d\u5b57\uff08\u7528\u4f86\u8b58\u5225\u548c\u5feb\u53d6\uff09<\/td>\n<\/tr>\n<tr>\n<td><code>queryFn: () =&gt; ...<\/code><\/td>\n<td>\u600e\u9ebc\u6293\u8cc7\u6599\uff08\u56de\u50b3 Promise \u7684\u51fd\u5f0f\uff09<\/td>\n<\/tr>\n<tr>\n<td><code>data<\/code><\/td>\n<td>\u6293\u56de\u4f86\u7684\u8cc7\u6599<\/td>\n<\/tr>\n<tr>\n<td><code>isLoading<\/code><\/td>\n<td>\u7b2c\u4e00\u6b21\u8f09\u5165\u4e2d\uff08\u9084\u6c92\u6709\u4efb\u4f55\u8cc7\u6599\uff09<\/td>\n<\/tr>\n<tr>\n<td><code>isFetching<\/code><\/td>\n<td>\u6b63\u5728\u6293\u8cc7\u6599\uff08\u5305\u542b\u80cc\u666f\u91cd\u65b0\u6293\u53d6\uff09<\/td>\n<\/tr>\n<tr>\n<td><code>error<\/code><\/td>\n<td>\u5982\u679c\u51fa\u932f\uff0c\u9019\u88e1\u6709\u932f\u8aa4\u8cc7\u8a0a<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">isLoading vs isFetching\u2014\u2014\u4e00\u5b9a\u8981\u770b\u61c2\u7684\u5dee\u7570<\/h3>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-7\" data-shcb-language-name=\"JavaScript\" data-shcb-language-slug=\"javascript\"><span><code class=\"hljs language-javascript\">\u7b2c\u4e00\u6b21\u9032\u9801\u9762\uff1a\n  isLoading = <span class=\"hljs-literal\">true<\/span>   \u2190 \u5b8c\u5168\u6c92\u8cc7\u6599\uff0c\u986f\u793a Loading \u756b\u9762\n  isFetching = <span class=\"hljs-literal\">true<\/span>\n\n\u6293\u5230\u8cc7\u6599\u5f8c\u5207\u63db\u5230\u5225\u7684\u9801\u9762\uff0c\u518d\u5207\u56de\u4f86\uff1a\n  isLoading = <span class=\"hljs-literal\">false<\/span>   \u2190 \u6709\u820a\u8cc7\u6599\u53ef\u4ee5\u5148\u986f\u793a\n  isFetching = <span class=\"hljs-literal\">true<\/span>   \u2190 \u4f46\u80cc\u666f\u6b63\u5728\u91cd\u65b0\u6293\u53d6\n\n\u80cc\u666f\u6293\u53d6\u5b8c\u6210\uff1a\n  isLoading = <span class=\"hljs-literal\">false<\/span>\n  isFetching = <span class=\"hljs-literal\">false<\/span>  \u2190 \u8cc7\u6599\u5df2\u662f\u6700\u65b0\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-7\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">JavaScript<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">javascript<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7ffb\u8b6f<\/strong>\uff1a<code>isLoading<\/code> \u662f\u300c\u5b8c\u5168\u7a7a\u767d\uff0c\u4ec0\u9ebc\u90fd\u6c92\u6709\u300d\u3002<code>isFetching<\/code> \u662f\u300c\u6b63\u5728\u66f4\u65b0\uff0c\u4f46\u53ef\u80fd\u6709\u820a\u8cc7\u6599\u53ef\u4ee5\u5148\u770b\u300d\u3002\u5927\u90e8\u5206\u60c5\u6cc1\u4e0b\u4f60\u7528 <code>isLoading<\/code> \u4f86\u6c7a\u5b9a\u8981\u4e0d\u8981\u986f\u793a Loading \u756b\u9762\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">staleTime \u548c gcTime<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u9019\u5169\u500b\u8a2d\u5b9a\u63a7\u5236\u4e86\u5feb\u53d6\u7684\u884c\u70ba\uff0c\u662f TanStack Query \u6700\u91cd\u8981\u7684\u6982\u5ff5\u4e4b\u4e00\u3002<\/p>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-8\" data-shcb-language-name=\"JavaScript\" data-shcb-language-slug=\"javascript\"><span><code class=\"hljs language-javascript\">staleTime\uff08\u65b0\u9bae\u6642\u9593\uff09\uff1a\n  \u300c\u8cc7\u6599\u6293\u56de\u4f86\u4e4b\u5f8c\uff0c\u591a\u4e45\u4e4b\u5167\u4e0d\u9700\u8981\u91cd\u65b0\u6293\uff1f\u300d\n\n  <span class=\"hljs-attr\">staleTime<\/span>: <span class=\"hljs-number\">0<\/span>          \u2192 \u4e00\u56de\u4f86\u5c31\u7b97\u904e\u671f\uff08\u9810\u8a2d\u503c\uff09\n  <span class=\"hljs-attr\">staleTime<\/span>: <span class=\"hljs-number\">1000<\/span> * <span class=\"hljs-number\">60<\/span>  \u2192 <span class=\"hljs-number\">1<\/span> \u5206\u9418\u5167\u7b97\u65b0\u9bae\n  <span class=\"hljs-attr\">staleTime<\/span>: <span class=\"hljs-literal\">Infinity<\/span>    \u2192 \u6c38\u9060\u4e0d\u904e\u671f\uff08\u9664\u975e\u624b\u52d5\u5237\u65b0\uff09\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-8\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">JavaScript<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">javascript<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-9\" data-shcb-language-name=\"JavaScript\" data-shcb-language-slug=\"javascript\"><span><code class=\"hljs language-javascript\">gcTime\uff08\u5783\u573e\u56de\u6536\u6642\u9593\uff09\uff1a\n  \u300c\u6c92\u6709\u5143\u4ef6\u5728\u7528\u9019\u4efd\u5feb\u53d6\u8cc7\u6599\u6642\uff0c\u4fdd\u7559\u591a\u4e45\u624d\u6e05\u6389\uff1f\u300d\n\n  <span class=\"hljs-attr\">gcTime<\/span>: <span class=\"hljs-number\">1000<\/span> * <span class=\"hljs-number\">60<\/span> * <span class=\"hljs-number\">5<\/span>  \u2192 <span class=\"hljs-number\">5<\/span> \u5206\u9418\u5f8c\u6e05\u6389\uff08\u9810\u8a2d\u503c\uff09\n  <span class=\"hljs-attr\">gcTime<\/span>: <span class=\"hljs-literal\">Infinity<\/span>         \u2192 \u6c38\u9060\u4e0d\u6e05\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-9\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">JavaScript<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">javascript<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7ffb\u8b6f<\/strong>\uff1a<code>staleTime<\/code> \u6c7a\u5b9a\u300c\u591a\u5feb\u8981\u91cd\u65b0\u6293\u300d\uff0c<code>gcTime<\/code> \u6c7a\u5b9a\u300c\u6c92\u4eba\u770b\u7684\u6642\u5019\u591a\u4e45\u624d\u4e1f\u6389\u300d\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">queryKey \u7684\u8a2d\u8a08\u2014\u2014\u70ba\u4ec0\u9ebc key \u7d50\u69cb\u5f88\u91cd\u8981<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><code>queryKey<\/code> \u4e0d\u53ea\u662f\u500b\u540d\u5b57\uff0c\u5b83\u662f\u4e00\u500b<strong>\u9663\u5217<\/strong>\uff0cTanStack Query \u7528\u5b83\u4f86\u6c7a\u5b9a\u300c\u9019\u662f\u4e0d\u662f\u540c\u4e00\u4efd\u8cc7\u6599\u300d\u3002<\/p>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-10\" data-shcb-language-name=\"JavaScript\" data-shcb-language-slug=\"javascript\"><span><code class=\"hljs language-javascript\"><span class=\"hljs-comment\">\/\/ \u6240\u6709\u6587\u7ae0<\/span>\nuseQuery({ <span class=\"hljs-attr\">queryKey<\/span>: &#91;<span class=\"hljs-string\">'posts'<\/span>], <span class=\"hljs-attr\">queryFn<\/span>: fetchPosts });\n\n<span class=\"hljs-comment\">\/\/ \u7279\u5b9a\u6587\u7ae0\uff08id = 5\uff09<\/span>\nuseQuery({ <span class=\"hljs-attr\">queryKey<\/span>: &#91;<span class=\"hljs-string\">'posts'<\/span>, <span class=\"hljs-number\">5<\/span>], <span class=\"hljs-attr\">queryFn<\/span>: <span class=\"hljs-function\"><span class=\"hljs-params\">()<\/span> =&gt;<\/span> fetchPost(<span class=\"hljs-number\">5<\/span>) });\n\n<span class=\"hljs-comment\">\/\/ \u5e36\u7be9\u9078\u689d\u4ef6\u7684\u6587\u7ae0<\/span>\nuseQuery({ <span class=\"hljs-attr\">queryKey<\/span>: &#91;<span class=\"hljs-string\">'posts'<\/span>, { <span class=\"hljs-attr\">status<\/span>: <span class=\"hljs-string\">'draft'<\/span> }], <span class=\"hljs-attr\">queryFn<\/span>: <span class=\"hljs-function\"><span class=\"hljs-params\">()<\/span> =&gt;<\/span> fetchPosts({ <span class=\"hljs-attr\">status<\/span>: <span class=\"hljs-string\">'draft'<\/span> }) });\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-10\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">JavaScript<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">javascript<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7ffb\u8b6f<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li><code>['posts']<\/code> \u2014 \u300c\u6240\u6709\u6587\u7ae0\u300d\u9019\u4efd\u8cc7\u6599<\/li>\n\n\n<li><code>['posts', 5]<\/code> \u2014 \u300c\u7b2c 5 \u7bc7\u6587\u7ae0\u300d\u9019\u4efd\u8cc7\u6599<\/li>\n\n\n<li><code>['posts', { status: 'draft' }]<\/code> \u2014 \u300c\u8349\u7a3f\u72c0\u614b\u7684\u6587\u7ae0\u300d\u9019\u4efd\u8cc7\u6599<\/li>\n\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b83\u5011\u662f<strong>\u4e09\u4efd\u4e0d\u540c\u7684\u5feb\u53d6<\/strong>\u3002queryKey \u4e0d\u540c\uff0c\u8cc7\u6599\u5c31\u5206\u958b\u5b58\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">queryKey \u8b8a\u5316\u6642\u7684\u884c\u70ba<\/h3>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-11\" data-shcb-language-name=\"JavaScript\" data-shcb-language-slug=\"javascript\"><span><code class=\"hljs language-javascript\"><span class=\"hljs-function\"><span class=\"hljs-keyword\">function<\/span> <span class=\"hljs-title\">PostDetail<\/span>(<span class=\"hljs-params\">{ postId }: { postId: number }<\/span>) <\/span>{\n  <span class=\"hljs-keyword\">const<\/span> { data } = useQuery({\n    <span class=\"hljs-attr\">queryKey<\/span>: &#91;<span class=\"hljs-string\">'posts'<\/span>, postId],        <span class=\"hljs-comment\">\/\/ postId \u8b8a\u4e86 \u2192 queryKey \u8b8a\u4e86<\/span>\n    <span class=\"hljs-attr\">queryFn<\/span>: <span class=\"hljs-function\"><span class=\"hljs-params\">()<\/span> =&gt;<\/span> fetchPost(postId),\n  });\n  <span class=\"hljs-comment\">\/\/ ...<\/span>\n}\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-11\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">JavaScript<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">javascript<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7ffb\u8b6f<\/strong>\uff1a\u7576 <code>postId<\/code> \u5f9e 5 \u8b8a\u6210 10 \u6642\uff0cTanStack Query \u77e5\u9053\u9019\u662f\u4e0d\u540c\u7684\u8cc7\u6599\uff0c\u6703\u81ea\u52d5\u53bb\u6293 <code>fetchPost(10)<\/code>\u3002\u5982\u679c\u4e4b\u524d\u6293\u904e 10 \u865f\u6587\u7ae0\u7684\u5feb\u53d6\u9084\u5728\uff0c\u5c31\u5148\u986f\u793a\u820a\u7684\uff0c\u80cc\u666f\u518d\u78ba\u8a8d\u662f\u5426\u9700\u8981\u66f4\u65b0\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u5feb\u53d6\u884c\u70ba\uff1astale-while-revalidate<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u9019\u662f TanStack Query \u7684\u6838\u5fc3\u7b56\u7565\uff0c\u540d\u5b57\u807d\u8d77\u4f86\u5f88\u8907\u96dc\uff0c\u4f46\u6982\u5ff5\u5f88\u7c21\u55ae\uff1a<\/p>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\"><span><code class=\"hljs\">\u300c\u5148\u7d66\u4f60\u820a\u7684\u770b\uff0c\u80cc\u666f\u5077\u5077\u53bb\u6293\u65b0\u7684\u3002\u300d\n<\/code><\/span><\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">\u5b8c\u6574\u6d41\u7a0b\u5716<\/h3>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-12\" data-shcb-language-name=\"JavaScript\" data-shcb-language-slug=\"javascript\"><span><code class=\"hljs language-javascript\">\u4f7f\u7528\u8005\u7b2c\u4e00\u6b21\u8a2a\u554f\u300c\u6587\u7ae0\u5217\u8868\u300d\u9801\u9762\n  <span class=\"hljs-number\">1.<\/span> queryKey &#91;<span class=\"hljs-string\">'posts'<\/span>] \u6c92\u6709\u5feb\u53d6 \u2192 isLoading = <span class=\"hljs-literal\">true<\/span>\n  <span class=\"hljs-number\">2.<\/span> \u547c\u53eb queryFn \u6293\u8cc7\u6599\n  <span class=\"hljs-number\">3.<\/span> \u6293\u5230\u4e86 \u2192 \u5b58\u9032\u5feb\u53d6\uff0c\u756b\u9762\u986f\u793a\u8cc7\u6599\n\n\u4f7f\u7528\u8005\u5207\u5230\u300c\u95dc\u65bc\u300d\u9801\u9762\uff08\u96e2\u958b\u6587\u7ae0\u5217\u8868\uff09\n  <span class=\"hljs-number\">4.<\/span> \u6c92\u6709\u5143\u4ef6\u5728\u7528 &#91;<span class=\"hljs-string\">'posts'<\/span>] \u4e86\n  <span class=\"hljs-number\">5.<\/span> \u4f46\u5feb\u53d6\u9084\u5728\uff08\u8981\u7b49 gcTime \u5230\u4e86\u624d\u6e05\uff09\n\n\u4f7f\u7528\u8005\u5207\u56de\u300c\u6587\u7ae0\u5217\u8868\u300d\u9801\u9762\n  <span class=\"hljs-number\">6.<\/span> \u5feb\u53d6\u88e1\u6709\u8cc7\u6599 \u2192 \u7acb\u523b\u986f\u793a\uff08\u4e0d\u7528\u7b49\uff01\uff09\n  <span class=\"hljs-number\">7.<\/span> \u4f46\u5982\u679c staleTime \u5df2\u904e \u2192 \u80cc\u666f\u91cd\u65b0\u6293\u53d6\n  <span class=\"hljs-number\">8.<\/span> \u65b0\u8cc7\u6599\u56de\u4f86 \u2192 \u81ea\u52d5\u66f4\u65b0\u756b\u9762\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-12\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">JavaScript<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">javascript<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7ffb\u8b6f<\/strong>\uff1a\u4f7f\u7528\u8005\u770b\u5230\u7684\u662f\u300c\u77ac\u9593\u986f\u793a\u300d\uff08\u56e0\u70ba\u6709\u5feb\u53d6\uff09\uff0c\u4f46\u8cc7\u6599\u662f\u6700\u65b0\u7684\uff08\u56e0\u70ba\u80cc\u666f\u5077\u5077\u66f4\u65b0\u4e86\uff09\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u81ea\u52d5 refetch \u7684\u89f8\u767c\u6642\u6a5f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">TanStack Query \u6703\u5728\u9019\u4e9b\u6642\u5019\u81ea\u52d5\u91cd\u65b0\u6293\u53d6\uff08\u524d\u63d0\u662f\u8cc7\u6599\u5df2\u7d93 stale\uff09\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table>\n<thead>\n<tr>\n<th>\u6642\u6a5f<\/th>\n<th>\u8a2d\u5b9a<\/th>\n<th>\u9810\u8a2d<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u5143\u4ef6\u639b\u8f09\u6642<\/td>\n<td><code>refetchOnMount<\/code><\/td>\n<td><code>true<\/code><\/td>\n<\/tr>\n<tr>\n<td>\u8996\u7a97\u91cd\u65b0\u805a\u7126<\/td>\n<td><code>refetchOnWindowFocus<\/code><\/td>\n<td><code>true<\/code><\/td>\n<\/tr>\n<tr>\n<td>\u7db2\u8def\u91cd\u65b0\u9023\u7dda<\/td>\n<td><code>refetchOnReconnect<\/code><\/td>\n<td><code>true<\/code><\/td>\n<\/tr>\n<tr>\n<td>\u56fa\u5b9a\u9593\u9694<\/td>\n<td><code>refetchInterval<\/code><\/td>\n<td><code>false<\/code>\uff08\u505c\u7528\uff09<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/figure>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-13\" data-shcb-language-name=\"JavaScript\" data-shcb-language-slug=\"javascript\"><span><code class=\"hljs language-javascript\"><span class=\"hljs-comment\">\/\/ \u7bc4\u4f8b\uff1a\u5373\u6642\u8cc7\u6599\u6bcf 30 \u79d2\u6293\u4e00\u6b21<\/span>\nuseQuery({\n  <span class=\"hljs-attr\">queryKey<\/span>: &#91;<span class=\"hljs-string\">'notifications'<\/span>],\n  <span class=\"hljs-attr\">queryFn<\/span>: fetchNotifications,\n  <span class=\"hljs-attr\">refetchInterval<\/span>: <span class=\"hljs-number\">1000<\/span> * <span class=\"hljs-number\">30<\/span>,  <span class=\"hljs-comment\">\/\/ \u6bcf 30 \u79d2\u81ea\u52d5\u6293<\/span>\n});\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-13\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">JavaScript<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">javascript<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7ffb\u8b6f<\/strong>\uff1a\u9810\u8a2d\u884c\u70ba\u662f\u300c\u4f60\u5207\u56de\u700f\u89bd\u5668\u8996\u7a97\u6642\uff0c\u81ea\u52d5\u66f4\u65b0\u904e\u671f\u7684\u8cc7\u6599\u300d\u3002\u9019\u5c31\u662f\u70ba\u4ec0\u9ebc\u7528\u4e86 TanStack Query \u5f8c\uff0c\u4f7f\u7528\u8005 alt-tab \u56de\u4f86\u5c31\u80fd\u770b\u5230\u6700\u65b0\u8cc7\u6599\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">useMutation\uff1a\u5beb\u5165\u8cc7\u6599<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><code>useQuery<\/code> \u8ca0\u8cac\u300c\u8b80\u300d\uff0c<code>useMutation<\/code> \u8ca0\u8cac\u300c\u5beb\u300d\uff08\u65b0\u589e\u3001\u4fee\u6539\u3001\u522a\u9664\uff09\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6700\u5c0f\u7bc4\u4f8b<\/h3>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-14\" data-shcb-language-name=\"JavaScript\" data-shcb-language-slug=\"javascript\"><span><code class=\"hljs language-javascript\"><span class=\"hljs-keyword\">import<\/span> { useMutation, useQueryClient } <span class=\"hljs-keyword\">from<\/span> <span class=\"hljs-string\">'@tanstack\/react-query'<\/span>;\n\n<span class=\"hljs-function\"><span class=\"hljs-keyword\">function<\/span> <span class=\"hljs-title\">CreatePostButton<\/span>(<span class=\"hljs-params\"><\/span>) <\/span>{\n  <span class=\"hljs-keyword\">const<\/span> queryClient = useQueryClient();\n\n  <span class=\"hljs-keyword\">const<\/span> mutation = useMutation({\n    <span class=\"hljs-attr\">mutationFn<\/span>: <span class=\"hljs-function\">(<span class=\"hljs-params\">newPost<\/span>) =&gt;<\/span>\n      fetch(<span class=\"hljs-string\">'\/api\/posts'<\/span>, {\n        <span class=\"hljs-attr\">method<\/span>: <span class=\"hljs-string\">'POST'<\/span>,\n        <span class=\"hljs-attr\">body<\/span>: <span class=\"hljs-built_in\">JSON<\/span>.stringify(newPost),\n        <span class=\"hljs-attr\">headers<\/span>: { <span class=\"hljs-string\">'Content-Type'<\/span>: <span class=\"hljs-string\">'application\/json'<\/span> },\n      }).then(<span class=\"hljs-function\"><span class=\"hljs-params\">res<\/span> =&gt;<\/span> res.json()),\n\n    <span class=\"hljs-attr\">onSuccess<\/span>: <span class=\"hljs-function\"><span class=\"hljs-params\">()<\/span> =&gt;<\/span> {\n      queryClient.invalidateQueries({ <span class=\"hljs-attr\">queryKey<\/span>: &#91;<span class=\"hljs-string\">'posts'<\/span>] });\n    },\n  });\n\n  <span class=\"hljs-keyword\">return<\/span> (\n    <span class=\"xml\"><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">button<\/span>\n      <span class=\"hljs-attr\">onClick<\/span>=<span class=\"hljs-string\">{()<\/span> =&gt;<\/span> mutation.mutate({ title: 'New Post', body: 'Hello' })}\n      disabled={mutation.isPending}\n    &gt;\n      {mutation.isPending ? 'Posting...' : 'Create Post'}\n    <span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">button<\/span>&gt;<\/span><\/span>\n  );\n}\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-14\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">JavaScript<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">javascript<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">\u9010\u884c\u7ffb\u8b6f<\/h3>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-15\" data-shcb-language-name=\"JavaScript\" data-shcb-language-slug=\"javascript\"><span><code class=\"hljs language-javascript\"><span class=\"hljs-keyword\">const<\/span> queryClient = useQueryClient();          <span class=\"hljs-comment\">\/\/ \u53d6\u5f97\u5feb\u53d6\u7ba1\u7406\u5668<\/span>\n\n<span class=\"hljs-keyword\">const<\/span> mutation = useMutation({\n  <span class=\"hljs-attr\">mutationFn<\/span>: <span class=\"hljs-function\">(<span class=\"hljs-params\">newPost<\/span>) =&gt;<\/span>                     <span class=\"hljs-comment\">\/\/ \u600e\u9ebc\u9001\u8cc7\u6599\u5230\u5f8c\u7aef<\/span>\n    fetch(<span class=\"hljs-string\">'\/api\/posts'<\/span>, {\n      <span class=\"hljs-attr\">method<\/span>: <span class=\"hljs-string\">'POST'<\/span>,\n      <span class=\"hljs-attr\">body<\/span>: <span class=\"hljs-built_in\">JSON<\/span>.stringify(newPost),\n    }).then(<span class=\"hljs-function\"><span class=\"hljs-params\">res<\/span> =&gt;<\/span> res.json()),\n\n  <span class=\"hljs-attr\">onSuccess<\/span>: <span class=\"hljs-function\"><span class=\"hljs-params\">()<\/span> =&gt;<\/span> {                           <span class=\"hljs-comment\">\/\/ \u6210\u529f\u4e4b\u5f8c\u505a\u4ec0\u9ebc<\/span>\n    queryClient.invalidateQueries({\n      <span class=\"hljs-attr\">queryKey<\/span>: &#91;<span class=\"hljs-string\">'posts'<\/span>]                      <span class=\"hljs-comment\">\/\/ \u544a\u8a34\u5feb\u53d6\uff1a&#91;'posts'] \u7684\u8cc7\u6599\u904e\u671f\u4e86\uff0c\u91cd\u65b0\u6293<\/span>\n    });\n  },\n});\n\nmutation.mutate({ <span class=\"hljs-attr\">title<\/span>: <span class=\"hljs-string\">'New Post'<\/span> });        <span class=\"hljs-comment\">\/\/ \u89f8\u767c\u9019\u500b mutation<\/span>\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-15\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">JavaScript<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">javascript<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">mutation \u7684\u72c0\u614b<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table>\n<thead>\n<tr>\n<th>\u4f60\u6703\u770b\u5230<\/th>\n<th>\u610f\u601d<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><code>mutation.mutate(data)<\/code><\/td>\n<td>\u57f7\u884c\u9019\u500b\u64cd\u4f5c<\/td>\n<\/tr>\n<tr>\n<td><code>mutation.isPending<\/code><\/td>\n<td>\u6b63\u5728\u57f7\u884c\u4e2d<\/td>\n<\/tr>\n<tr>\n<td><code>mutation.isError<\/code><\/td>\n<td>\u57f7\u884c\u5931\u6557\u4e86<\/td>\n<\/tr>\n<tr>\n<td><code>mutation.isSuccess<\/code><\/td>\n<td>\u57f7\u884c\u6210\u529f\u4e86<\/td>\n<\/tr>\n<tr>\n<td><code>mutation.error<\/code><\/td>\n<td>\u932f\u8aa4\u8cc7\u8a0a<\/td>\n<\/tr>\n<tr>\n<td><code>mutation.reset()<\/code><\/td>\n<td>\u91cd\u8a2d\u72c0\u614b<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u5b8c\u6574\u7684\u932f\u8aa4\u8655\u7406<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">AI \u5e38\u6703\u751f\u6210\u5305\u542b <code>onError<\/code> \u548c <code>onSettled<\/code> \u7684\u5beb\u6cd5\uff1a<\/p>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-16\" data-shcb-language-name=\"JavaScript\" data-shcb-language-slug=\"javascript\"><span><code class=\"hljs language-javascript\"><span class=\"hljs-keyword\">const<\/span> mutation = useMutation({\n  <span class=\"hljs-attr\">mutationFn<\/span>: updatePost,\n  <span class=\"hljs-attr\">onSuccess<\/span>: <span class=\"hljs-function\">(<span class=\"hljs-params\">data<\/span>) =&gt;<\/span> {\n    <span class=\"hljs-built_in\">console<\/span>.log(<span class=\"hljs-string\">'\u6210\u529f\uff01\u56de\u50b3\u7684\u8cc7\u6599\uff1a'<\/span>, data);\n    queryClient.invalidateQueries({ <span class=\"hljs-attr\">queryKey<\/span>: &#91;<span class=\"hljs-string\">'posts'<\/span>] });\n  },\n  <span class=\"hljs-attr\">onError<\/span>: <span class=\"hljs-function\">(<span class=\"hljs-params\">error<\/span>) =&gt;<\/span> {\n    <span class=\"hljs-built_in\">console<\/span>.error(<span class=\"hljs-string\">'\u5931\u6557\u4e86\uff1a'<\/span>, error.message);\n  },\n  <span class=\"hljs-attr\">onSettled<\/span>: <span class=\"hljs-function\"><span class=\"hljs-params\">()<\/span> =&gt;<\/span> {\n    <span class=\"hljs-built_in\">console<\/span>.log(<span class=\"hljs-string\">'\u4e0d\u7ba1\u6210\u529f\u6216\u5931\u6557\u90fd\u6703\u57f7\u884c'<\/span>);\n  },\n});\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-16\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">JavaScript<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">javascript<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7ffb\u8b6f<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li><code>onSuccess<\/code>\uff1a\u6210\u529f\u4e86\uff0c\u901a\u5e38\u5728\u9019\u88e1\u5237\u65b0\u5feb\u53d6<\/li>\n\n\n<li><code>onError<\/code>\uff1a\u5931\u6557\u4e86\uff0c\u901a\u5e38\u5728\u9019\u88e1\u986f\u793a\u932f\u8aa4\u63d0\u793a<\/li>\n\n\n<li><code>onSettled<\/code>\uff1a\u4e0d\u7ba1\u6210\u529f\u5931\u6557\uff0c\u901a\u5e38\u5728\u9019\u88e1\u95dc\u9589 loading \u52d5\u756b<\/li>\n\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">invalidateQueries\u2014\u2014\u5237\u65b0\u5feb\u53d6\u7684\u95dc\u9375<\/h3>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-17\" data-shcb-language-name=\"JavaScript\" data-shcb-language-slug=\"javascript\"><span><code class=\"hljs language-javascript\"><span class=\"hljs-comment\">\/\/ \u5237\u65b0\u6240\u6709\u4ee5 'posts' \u958b\u982d\u7684\u5feb\u53d6<\/span>\nqueryClient.invalidateQueries({ <span class=\"hljs-attr\">queryKey<\/span>: &#91;<span class=\"hljs-string\">'posts'<\/span>] });\n<span class=\"hljs-comment\">\/\/ \u2191 \u9019\u6703\u8b93 &#91;'posts']\u3001&#91;'posts', 5]\u3001&#91;'posts', { status: 'draft' }] \u5168\u90e8\u91cd\u65b0\u6293\u53d6<\/span>\n\n<span class=\"hljs-comment\">\/\/ \u53ea\u5237\u65b0\u7279\u5b9a\u7684<\/span>\nqueryClient.invalidateQueries({ <span class=\"hljs-attr\">queryKey<\/span>: &#91;<span class=\"hljs-string\">'posts'<\/span>, <span class=\"hljs-number\">5<\/span>] });\n<span class=\"hljs-comment\">\/\/ \u2191 \u53ea\u6709 &#91;'posts', 5] \u6703\u91cd\u65b0\u6293\u53d6<\/span>\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-17\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">JavaScript<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">javascript<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7ffb\u8b6f<\/strong>\uff1a<code>invalidateQueries<\/code> \u7684\u610f\u601d\u662f\u300c\u544a\u8a34\u5feb\u53d6\uff1a\u9019\u4e9b\u8cc7\u6599\u904e\u671f\u4e86\uff0c\u4e0b\u6b21\u6709\u4eba\u8981\u7528\u5c31\u91cd\u65b0\u6293\u300d\u3002\u6ce8\u610f\u5b83\u662f<strong>\u524d\u7db4\u5339\u914d<\/strong>\uff1a<code>['posts']<\/code> \u6703\u5339\u914d\u6240\u6709\u4ee5 <code>'posts'<\/code> \u958b\u982d\u7684 queryKey\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Optimistic Updates\uff08\u6a02\u89c0\u66f4\u65b0\uff09<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u6982\u5ff5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u822c\u6d41\u7a0b\uff1a\u6309\u4e0b\u300c\u6309\u8b9a\u300d\u2192 \u7b49 API \u56de\u61c9 \u2192 \u66f4\u65b0\u756b\u9762 \u6a02\u89c0\u66f4\u65b0\uff1a\u6309\u4e0b\u300c\u6309\u8b9a\u300d\u2192 <strong>\u7acb\u523b\u66f4\u65b0\u756b\u9762<\/strong> \u2192 \u80cc\u666f\u9001 API \u2192 \u5982\u679c\u5931\u6557\u518d\u56de\u6efe<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7ffb\u8b6f<\/strong>\uff1a\u300c\u5148\u5047\u8a2d\u6703\u6210\u529f\uff0c\u8b93\u4f7f\u7528\u8005\u7acb\u523b\u770b\u5230\u7d50\u679c\u3002\u5982\u679c\u5f8c\u7aef\u8aaa\u5931\u6557\uff0c\u518d\u5fa9\u539f\u3002\u300d<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6700\u5c0f\u7bc4\u4f8b<\/h3>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-18\" data-shcb-language-name=\"JavaScript\" data-shcb-language-slug=\"javascript\"><span><code class=\"hljs language-javascript\"><span class=\"hljs-keyword\">const<\/span> likeMutation = useMutation({\n  <span class=\"hljs-attr\">mutationFn<\/span>: <span class=\"hljs-function\">(<span class=\"hljs-params\">postId<\/span>) =&gt;<\/span> fetch(<span class=\"hljs-string\">`\/api\/posts\/<span class=\"hljs-subst\">${postId}<\/span>\/like`<\/span>, { <span class=\"hljs-attr\">method<\/span>: <span class=\"hljs-string\">'POST'<\/span> }),\n\n  <span class=\"hljs-attr\">onMutate<\/span>: <span class=\"hljs-keyword\">async<\/span> (postId) =&gt; {\n    <span class=\"hljs-comment\">\/\/ 1. \u53d6\u6d88\u6b63\u5728\u9032\u884c\u7684\u67e5\u8a62\uff08\u907f\u514d\u8986\u84cb\u6211\u5011\u7684\u6a02\u89c0\u66f4\u65b0\uff09<\/span>\n    <span class=\"hljs-keyword\">await<\/span> queryClient.cancelQueries({ <span class=\"hljs-attr\">queryKey<\/span>: &#91;<span class=\"hljs-string\">'posts'<\/span>, postId] });\n\n    <span class=\"hljs-comment\">\/\/ 2. \u4fdd\u5b58\u820a\u8cc7\u6599\uff08\u7b49\u7b49\u5931\u6557\u6642\u8981\u7528\u4f86\u56de\u6efe\uff09<\/span>\n    <span class=\"hljs-keyword\">const<\/span> previousPost = queryClient.getQueryData(&#91;<span class=\"hljs-string\">'posts'<\/span>, postId]);\n\n    <span class=\"hljs-comment\">\/\/ 3. \u6a02\u89c0\u66f4\u65b0\uff1a\u5148\u5728\u5feb\u53d6\u88e1\u6539\u6389<\/span>\n    queryClient.setQueryData(&#91;<span class=\"hljs-string\">'posts'<\/span>, postId], (old) =&gt; ({\n      ...old,\n      <span class=\"hljs-attr\">likes<\/span>: old.likes + <span class=\"hljs-number\">1<\/span>,\n    }));\n\n    <span class=\"hljs-comment\">\/\/ 4. \u628a\u820a\u8cc7\u6599\u50b3\u7d66 onError<\/span>\n    <span class=\"hljs-keyword\">return<\/span> { previousPost };\n  },\n\n  <span class=\"hljs-attr\">onError<\/span>: <span class=\"hljs-function\">(<span class=\"hljs-params\">err, postId, context<\/span>) =&gt;<\/span> {\n    <span class=\"hljs-comment\">\/\/ \u5931\u6557\u4e86\uff01\u7528\u820a\u8cc7\u6599\u56de\u6efe<\/span>\n    queryClient.setQueryData(&#91;<span class=\"hljs-string\">'posts'<\/span>, postId], context.previousPost);\n  },\n\n  <span class=\"hljs-attr\">onSettled<\/span>: <span class=\"hljs-function\">(<span class=\"hljs-params\">data, error, postId<\/span>) =&gt;<\/span> {\n    <span class=\"hljs-comment\">\/\/ \u4e0d\u7ba1\u6210\u529f\u5931\u6557\uff0c\u90fd\u91cd\u65b0\u6293\u4e00\u6b21\u78ba\u4fdd\u540c\u6b65<\/span>\n    queryClient.invalidateQueries({ <span class=\"hljs-attr\">queryKey<\/span>: &#91;<span class=\"hljs-string\">'posts'<\/span>, postId] });\n  },\n});\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-18\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">JavaScript<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">javascript<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">\u6d41\u7a0b\u7ffb\u8b6f<\/h3>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\"><span><code class=\"hljs\">\u4f7f\u7528\u8005\u6309\u4e0b\u300c\u6309\u8b9a\u300d\n  \u2193\nonMutate \u57f7\u884c\uff1a\n  1. \u53d6\u6d88\u6b63\u5728\u9032\u884c\u7684\u67e5\u8a62\n  2. \u628a\u76ee\u524d\u7684\u8cc7\u6599\u5b58\u8d77\u4f86\uff08\u5099\u4efd\uff09\n  3. \u76f4\u63a5\u6539\u5feb\u53d6\u88e1\u7684\u8cc7\u6599\uff08likes + 1\uff09\u2192 \u756b\u9762\u7acb\u523b\u66f4\u65b0\uff01\n  \u2193\nmutationFn \u57f7\u884c\uff1a\u9001 API \u8acb\u6c42\u5230\u5f8c\u7aef\n  \u2193\n\u5982\u679c\u6210\u529f \u2192 onSuccess + onSettled \u2192 \u91cd\u65b0\u6293\u53d6\u78ba\u4fdd\u540c\u6b65\n\u5982\u679c\u5931\u6557 \u2192 onError\uff08\u7528\u5099\u4efd\u56de\u6efe\uff09+ onSettled \u2192 \u91cd\u65b0\u6293\u53d6\n<\/code><\/span><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5fc5\u770b\u61c2<\/strong>\uff1aOptimistic Updates \u7684\u6838\u5fc3\u5c31\u662f\u4e09\u6b65\u2014\u2014\u300c\u5099\u4efd\u3001\u5148\u6539\u3001\u5931\u6557\u56de\u6efe\u300d\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">queryKey \u8a2d\u8a08\u6a21\u5f0f\uff1aQuery Key Factory<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u7576\u5c08\u6848\u8b8a\u5927\uff0cqueryKey \u5230\u8655\u6563\u843d\u6703\u8b8a\u5f97\u96e3\u4ee5\u7ba1\u7406\u3002\u4f60\u6703\u770b\u5230 AI \u751f\u6210\u985e\u4f3c\u9019\u6a23\u7684\u300c\u5de5\u5ee0\u51fd\u5f0f\u300d\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6700\u5c0f\u7bc4\u4f8b<\/h3>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-19\" data-shcb-language-name=\"JavaScript\" data-shcb-language-slug=\"javascript\"><span><code class=\"hljs language-javascript\"><span class=\"hljs-comment\">\/\/ queryKeys.ts<\/span>\n<span class=\"hljs-keyword\">export<\/span> <span class=\"hljs-keyword\">const<\/span> postKeys = {\n  <span class=\"hljs-attr\">all<\/span>:    &#91;<span class=\"hljs-string\">'posts'<\/span>] <span class=\"hljs-keyword\">as<\/span> <span class=\"hljs-keyword\">const<\/span>,\n  <span class=\"hljs-attr\">lists<\/span>:  <span class=\"hljs-function\"><span class=\"hljs-params\">()<\/span> =&gt;<\/span> &#91;...postKeys.all, <span class=\"hljs-string\">'list'<\/span>] <span class=\"hljs-keyword\">as<\/span> <span class=\"hljs-keyword\">const<\/span>,\n  <span class=\"hljs-attr\">list<\/span>:   <span class=\"hljs-function\">(<span class=\"hljs-params\">filters: object<\/span>) =&gt;<\/span> &#91;...postKeys.lists(), filters] <span class=\"hljs-keyword\">as<\/span> <span class=\"hljs-keyword\">const<\/span>,\n  <span class=\"hljs-attr\">details<\/span>:<span class=\"hljs-function\"><span class=\"hljs-params\">()<\/span> =&gt;<\/span> &#91;...postKeys.all, <span class=\"hljs-string\">'detail'<\/span>] <span class=\"hljs-keyword\">as<\/span> <span class=\"hljs-keyword\">const<\/span>,\n  <span class=\"hljs-attr\">detail<\/span>: <span class=\"hljs-function\">(<span class=\"hljs-params\">id: number<\/span>) =&gt;<\/span> &#91;...postKeys.details(), id] <span class=\"hljs-keyword\">as<\/span> <span class=\"hljs-keyword\">const<\/span>,\n};\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-19\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">JavaScript<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">javascript<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">\u4f7f\u7528\u65b9\u5f0f<\/h3>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-20\" data-shcb-language-name=\"JavaScript\" data-shcb-language-slug=\"javascript\"><span><code class=\"hljs language-javascript\"><span class=\"hljs-comment\">\/\/ \u53d6\u5f97\u6240\u6709\u6587\u7ae0\u5217\u8868<\/span>\nuseQuery({\n  <span class=\"hljs-attr\">queryKey<\/span>: postKeys.lists(),            <span class=\"hljs-comment\">\/\/ &#91;'posts', 'list']<\/span>\n  <span class=\"hljs-attr\">queryFn<\/span>: fetchPosts,\n});\n\n<span class=\"hljs-comment\">\/\/ \u53d6\u5f97\u7be9\u9078\u5f8c\u7684\u6587\u7ae0<\/span>\nuseQuery({\n  <span class=\"hljs-attr\">queryKey<\/span>: postKeys.list({ <span class=\"hljs-attr\">status<\/span>: <span class=\"hljs-string\">'draft'<\/span> }),  <span class=\"hljs-comment\">\/\/ &#91;'posts', 'list', { status: 'draft' }]<\/span>\n  <span class=\"hljs-attr\">queryFn<\/span>: <span class=\"hljs-function\"><span class=\"hljs-params\">()<\/span> =&gt;<\/span> fetchPosts({ <span class=\"hljs-attr\">status<\/span>: <span class=\"hljs-string\">'draft'<\/span> }),\n});\n\n<span class=\"hljs-comment\">\/\/ \u53d6\u5f97\u55ae\u7bc7\u6587\u7ae0<\/span>\nuseQuery({\n  <span class=\"hljs-attr\">queryKey<\/span>: postKeys.detail(<span class=\"hljs-number\">5<\/span>),          <span class=\"hljs-comment\">\/\/ &#91;'posts', 'detail', 5]<\/span>\n  <span class=\"hljs-attr\">queryFn<\/span>: <span class=\"hljs-function\"><span class=\"hljs-params\">()<\/span> =&gt;<\/span> fetchPost(<span class=\"hljs-number\">5<\/span>),\n});\n\n<span class=\"hljs-comment\">\/\/ \u5237\u65b0\u6240\u6709\u6587\u7ae0\u76f8\u95dc\u7684\u5feb\u53d6<\/span>\nqueryClient.invalidateQueries({ <span class=\"hljs-attr\">queryKey<\/span>: postKeys.all });\n<span class=\"hljs-comment\">\/\/ \u2191 \u6240\u6709\u4ee5 &#91;'posts'] \u958b\u982d\u7684\u90fd\u6703\u88ab\u5237\u65b0<\/span>\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-20\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">JavaScript<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">javascript<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">\u70ba\u4ec0\u9ebc\u9019\u6a23\u8a2d\u8a08<\/h3>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-21\" data-shcb-language-name=\"PHP\" data-shcb-language-slug=\"php\"><span><code class=\"hljs language-php\">postKeys.all          \u2192 &#91;<span class=\"hljs-string\">'posts'<\/span>]              \u2192 \u5237\u65b0\u300c\u6240\u6709\u6587\u7ae0\u76f8\u95dc\u300d\npostKeys.lists()      \u2192 &#91;<span class=\"hljs-string\">'posts'<\/span>, <span class=\"hljs-string\">'list'<\/span>]      \u2192 \u5237\u65b0\u300c\u6240\u6709\u5217\u8868\u300d\npostKeys.<span class=\"hljs-keyword\">list<\/span>({...})  \u2192 &#91;<span class=\"hljs-string\">'posts'<\/span>, <span class=\"hljs-string\">'list'<\/span>, ...] \u2192 \u5237\u65b0\u300c\u7279\u5b9a\u7be9\u9078\u7684\u5217\u8868\u300d\npostKeys.details()    \u2192 &#91;<span class=\"hljs-string\">'posts'<\/span>, <span class=\"hljs-string\">'detail'<\/span>]    \u2192 \u5237\u65b0\u300c\u6240\u6709\u6587\u7ae0\u8a73\u60c5\u300d\npostKeys.detail(<span class=\"hljs-number\">5<\/span>)    \u2192 &#91;<span class=\"hljs-string\">'posts'<\/span>, <span class=\"hljs-string\">'detail'<\/span>, <span class=\"hljs-number\">5<\/span>] \u2192 \u5237\u65b0\u300c\u7b2c <span class=\"hljs-number\">5<\/span> \u7bc7\u6587\u7ae0\u300d\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-21\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PHP<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">php<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7ffb\u8b6f<\/strong>\uff1a\u9019\u662f\u4e00\u500b\u300c\u5f9e\u5927\u5230\u5c0f\u300d\u7684\u6a39\u72c0\u7d50\u69cb\u3002\u7528 <code>invalidateQueries<\/code> \u6642\uff0c\u4f60\u53ef\u4ee5\u9078\u64c7\u5237\u65b0\u6574\u68f5\u6a39\u3001\u67d0\u500b\u5206\u652f\u3001\u6216\u4e00\u500b\u7bc0\u9ede\u3002\u7d71\u4e00\u7ba1\u7406 key \u7684\u597d\u8655\u662f\u4e0d\u6703\u6253\u932f\u5b57\uff0c\u4e5f\u5bb9\u6613\u641c\u5c0b\u300c\u8ab0\u5728\u7528\u9019\u500b key\u300d\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Vibe Coder \u6aa2\u67e5\u9ede<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u770b\u5230 AI \u7528 TanStack Query \u5beb\u7684\u7a0b\u5f0f\u78bc\u6642\uff0c\u78ba\u8a8d\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">useQuery \u76f8\u95dc<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li>[ ] <code>queryKey<\/code> \u6709\u5305\u542b\u6240\u6709\u5f71\u97ff\u67e5\u8a62\u7d50\u679c\u7684\u8b8a\u6578\u55ce\uff1f\uff08\u4f8b\u5982 id\u3001\u7be9\u9078\u689d\u4ef6\uff09<\/li>\n\n\n<li>[ ] <code>queryFn<\/code> \u6709\u6b63\u78ba\u8655\u7406 HTTP \u932f\u8aa4\u55ce\uff1f\uff08fetch \u4e0d\u6703\u81ea\u52d5 throw 4xx\/5xx \u932f\u8aa4\uff09<\/li>\n\n\n<li>[ ] <code>staleTime<\/code> \u8a2d\u5b9a\u5408\u7406\u55ce\uff1f\uff08\u592a\u77ed = \u4e00\u76f4\u6293\uff0c\u592a\u9577 = \u8cc7\u6599\u5f88\u820a\uff09<\/li>\n\n\n<li>[ ] \u6709\u5340\u5206 <code>isLoading<\/code> \u548c <code>isFetching<\/code> \u55ce\uff1f\uff08\u521d\u6b21\u8f09\u5165 vs \u80cc\u666f\u66f4\u65b0\uff09<\/li>\n\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">useMutation \u76f8\u95dc<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li>[ ] <code>onSuccess<\/code> \u6709\u7528 <code>invalidateQueries<\/code> \u5237\u65b0\u76f8\u95dc\u7684\u5feb\u53d6\u55ce\uff1f<\/li>\n\n\n<li>[ ] \u6709\u8655\u7406 <code>onError<\/code> \u55ce\uff1f\uff08\u81f3\u5c11\u986f\u793a\u932f\u8aa4\u8a0a\u606f\u7d66\u4f7f\u7528\u8005\uff09<\/li>\n\n\n<li>[ ] \u6309\u9215\u6709\u5728 <code>isPending<\/code> \u6642 disabled \u55ce\uff1f\uff08\u907f\u514d\u91cd\u8907\u9001\u51fa\uff09<\/li>\n\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Optimistic Updates \u76f8\u95dc<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li>[ ] <code>onMutate<\/code> \u6709\u5099\u4efd\u820a\u8cc7\u6599\u55ce\uff1f<\/li>\n\n\n<li>[ ] <code>onError<\/code> \u6709\u7528\u5099\u4efd\u56de\u6efe\u55ce\uff1f<\/li>\n\n\n<li>[ ] <code>onSettled<\/code> \u6709\u91cd\u65b0\u6293\u53d6\u78ba\u4fdd\u540c\u6b65\u55ce\uff1f<\/li>\n\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">queryKey \u76f8\u95dc<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li>[ ] \u6709\u7528 Query Key Factory \u7d71\u4e00\u7ba1\u7406\u55ce\uff1f\uff08\u5c08\u6848\u5927\u7684\u6642\u5019\uff09<\/li>\n\n\n<li>[ ] <code>invalidateQueries<\/code> \u7684\u7bc4\u570d\u6b63\u78ba\u55ce\uff1f\uff08\u592a\u5927 = \u91cd\u6293\u592a\u591a\uff0c\u592a\u5c0f = \u6f0f\u66f4\u65b0\uff09<\/li>\n\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u5e38\u898b\u554f\u984c\u901f\u67e5<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">fetch \u4e0d\u6703\u81ea\u52d5 throw \u932f\u8aa4<\/h3>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-22\" data-shcb-language-name=\"JavaScript\" data-shcb-language-slug=\"javascript\"><span><code class=\"hljs language-javascript\"><span class=\"hljs-comment\">\/\/ \u6709\u9677\u9631\u7684\u5beb\u6cd5\uff08404 \u4e0d\u6703\u9032 error\uff09<\/span>\n<span class=\"hljs-attr\">queryFn<\/span>: <span class=\"hljs-function\"><span class=\"hljs-params\">()<\/span> =&gt;<\/span> fetch(<span class=\"hljs-string\">'\/api\/posts'<\/span>).then(<span class=\"hljs-function\"><span class=\"hljs-params\">res<\/span> =&gt;<\/span> res.json())\n\n<span class=\"hljs-comment\">\/\/ \u6b63\u78ba\u7684\u5beb\u6cd5<\/span>\n<span class=\"hljs-attr\">queryFn<\/span>: <span class=\"hljs-keyword\">async<\/span> () =&gt; {\n  <span class=\"hljs-keyword\">const<\/span> res = <span class=\"hljs-keyword\">await<\/span> fetch(<span class=\"hljs-string\">'\/api\/posts'<\/span>);\n  <span class=\"hljs-keyword\">if<\/span> (!res.ok) <span class=\"hljs-keyword\">throw<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-built_in\">Error<\/span>(<span class=\"hljs-string\">`HTTP <span class=\"hljs-subst\">${res.status}<\/span>`<\/span>);\n  <span class=\"hljs-keyword\">return<\/span> res.json();\n}\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-22\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">JavaScript<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">javascript<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7ffb\u8b6f<\/strong>\uff1a<code>fetch<\/code> \u5728\u6536\u5230 404 \u6216 500 \u6642\u4e0d\u6703\u81ea\u5df1\u5831\u932f\u3002\u4f60\u8981\u81ea\u5df1\u6aa2\u67e5 <code>res.ok<\/code>\uff0c\u4e0d OK \u5c31\u624b\u52d5\u4e1f\u51fa\u932f\u8aa4\uff0cTanStack Query \u624d\u80fd\u6b63\u78ba\u9032\u5165 error \u72c0\u614b\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">enabled \u63a7\u5236\u4ec0\u9ebc\u6642\u5019\u624d\u6293<\/h3>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-23\" data-shcb-language-name=\"JavaScript\" data-shcb-language-slug=\"javascript\"><span><code class=\"hljs language-javascript\"><span class=\"hljs-keyword\">const<\/span> { <span class=\"hljs-attr\">data<\/span>: user } = useQuery({\n  <span class=\"hljs-attr\">queryKey<\/span>: &#91;<span class=\"hljs-string\">'user'<\/span>, userId],\n  <span class=\"hljs-attr\">queryFn<\/span>: <span class=\"hljs-function\"><span class=\"hljs-params\">()<\/span> =&gt;<\/span> fetchUser(userId),\n  <span class=\"hljs-attr\">enabled<\/span>: !!userId,  <span class=\"hljs-comment\">\/\/ userId \u5b58\u5728\u6642\u624d\u6293<\/span>\n});\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-23\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">JavaScript<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">javascript<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7ffb\u8b6f<\/strong>\uff1a<code>enabled: false<\/code> \u6642\u9019\u500b query \u5b8c\u5168\u4e0d\u6703\u57f7\u884c\u3002\u5e38\u7528\u5728\u300c\u8981\u7b49\u53e6\u4e00\u500b\u8cc7\u6599\u56de\u4f86\u624d\u80fd\u6293\u300d\u7684\u5834\u666f\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">select \u53ea\u53d6\u90e8\u5206\u8cc7\u6599<\/h3>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-24\" data-shcb-language-name=\"JavaScript\" data-shcb-language-slug=\"javascript\"><span><code class=\"hljs language-javascript\"><span class=\"hljs-keyword\">const<\/span> { <span class=\"hljs-attr\">data<\/span>: postTitles } = useQuery({\n  <span class=\"hljs-attr\">queryKey<\/span>: &#91;<span class=\"hljs-string\">'posts'<\/span>],\n  <span class=\"hljs-attr\">queryFn<\/span>: fetchPosts,\n  <span class=\"hljs-attr\">select<\/span>: <span class=\"hljs-function\">(<span class=\"hljs-params\">posts<\/span>) =&gt;<\/span> posts.map(<span class=\"hljs-function\"><span class=\"hljs-params\">p<\/span> =&gt;<\/span> p.title),  <span class=\"hljs-comment\">\/\/ \u53ea\u53d6\u6a19\u984c<\/span>\n});\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-24\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">JavaScript<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">javascript<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7ffb\u8b6f<\/strong>\uff1a<code>select<\/code> \u8b93\u4f60\u5728\u5feb\u53d6\u7684\u8cc7\u6599\u4e0a\u505a\u8f49\u63db\u3002\u5feb\u53d6\u88e1\u5b58\u7684\u662f\u5b8c\u6574\u8cc7\u6599\uff0c\u4f46\u5143\u4ef6\u53ea\u6536\u5230\u6a19\u984c\u3002\u597d\u8655\u662f\u591a\u500b\u5143\u4ef6\u53ef\u4ee5\u5171\u7528\u540c\u4e00\u4efd\u5feb\u53d6\u4f46\u5404\u53d6\u6240\u9700\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u5fc5\u770b\u61c2 vs \u77e5\u9053\u5c31\u597d<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u5fc5\u770b\u61c2\uff08\u5929\u5929\u6703\u9047\u5230\uff09<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li><code>useQuery<\/code> \u7684 <code>queryKey<\/code>\u3001<code>queryFn<\/code>\u3001<code>data<\/code>\u3001<code>isLoading<\/code><\/li>\n\n\n<li><code>useMutation<\/code> \u7684 <code>mutationFn<\/code>\u3001<code>mutate<\/code>\u3001<code>onSuccess<\/code><\/li>\n\n\n<li><code>invalidateQueries<\/code> \u5237\u65b0\u5feb\u53d6<\/li>\n\n\n<li><code>staleTime<\/code> \u548c <code>gcTime<\/code> \u7684\u610f\u7fa9<\/li>\n\n\n<li><code>QueryClientProvider<\/code> \u521d\u59cb\u5316<\/li>\n\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u77e5\u9053\u5c31\u597d\uff08\u9047\u5230\u518d\u67e5\uff09<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li><code>useInfiniteQuery<\/code>\uff1a\u7121\u9650\u6372\u52d5\u8f09\u5165<\/li>\n\n\n<li><code>useSuspense<\/code> \/ Suspense \u6a21\u5f0f\uff1a\u642d\u914d React Suspense \u4f7f\u7528<\/li>\n\n\n<li><code>placeholderData<\/code>\uff1a\u5728\u8cc7\u6599\u8f09\u5165\u524d\u5148\u986f\u793a\u5360\u4f4d\u8cc7\u6599<\/li>\n\n\n<li><code>useQueries<\/code>\uff1a\u540c\u6642\u57f7\u884c\u591a\u500b query<\/li>\n\n\n<li>Devtools\uff1a<code>@tanstack\/react-query-devtools<\/code> \u9664\u932f\u5de5\u5177<\/li>\n\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u672c\u7bc7\u5c0f\u7d50<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">TanStack Query \u7684\u6838\u5fc3\u6982\u5ff5\u5c31\u662f\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n\n<li><strong>useQuery<\/strong> \u8ca0\u8cac\u8b80\u53d6\u2014\u2014\u7d66\u4e00\u500b key \u548c\u6293\u8cc7\u6599\u7684\u51fd\u5f0f\uff0c\u5b83\u5e6b\u4f60\u7ba1\u8f09\u5165\u3001\u932f\u8aa4\u3001\u5feb\u53d6<\/li>\n\n\n<li><strong>stale-while-revalidate<\/strong> \u662f\u5feb\u53d6\u7b56\u7565\u2014\u2014\u5148\u986f\u793a\u820a\u7684\uff0c\u80cc\u666f\u53bb\u6293\u65b0\u7684<\/li>\n\n\n<li><strong>useMutation<\/strong> \u8ca0\u8cac\u5beb\u5165\u2014\u2014\u64cd\u4f5c\u6210\u529f\u5f8c\u7528 <code>invalidateQueries<\/code> \u5237\u65b0\u5feb\u53d6<\/li>\n\n\n<li><strong>Optimistic Updates<\/strong> \u8b93 UX \u66f4\u5feb\u2014\u2014\u5148\u6539 UI \u518d\u9001\u8acb\u6c42\uff0c\u5931\u6557\u5c31\u56de\u6efe<\/li>\n\n\n<li><strong>queryKey<\/strong> \u662f\u5feb\u53d6\u7684\u8eab\u4efd\u8b49\u2014\u2014\u7d50\u69cb\u8a2d\u8a08\u597d\uff0c\u7ba1\u7406\u548c\u5237\u65b0\u90fd\u65b9\u4fbf<\/li>\n\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0b\u4e00\u7bc7\u6211\u5011\u6703\u4ecb\u7d39\u5982\u4f55\u628a TanStack Router \u548c TanStack Query <strong>\u6574\u5408\u5728\u4e00\u8d77<\/strong>\u2014\u2014\u7528 loader \u6a21\u5f0f\u5728\u8def\u7531\u5c64\u5c31\u958b\u59cb\u6293\u8cc7\u6599\uff0c\u8b93\u9801\u9762\u5207\u63db\u66f4\u5feb\u3002<\/p>\n\n\n\n<div id=\"quiz-7aeac07f\">\n<style>\n#quiz-7aeac07f .badge {\n        display: inline-block;\n        padding: 4px 10px;\n        border-radius: 12px;\n        font-size: 0.75em;\n        font-weight: bold;\n        margin-left: 8px;\n      }#quiz-7aeac07f .badge.scenario {\n        background: #ebf8ff;\n        color: #2b6cb0;\n      }#quiz-7aeac07f .badge.debug {\n        background: #fef3c7;\n        color: #92400e;\n      }#quiz-7aeac07f .question-adv {\n        background: white;\n        border-radius: 10px;\n        padding: 24px;\n        margin: 20px 0;\n        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);\n        border-left: 4px solid #ed8936;\n      }#quiz-7aeac07f .question-adv h3 {\n        margin-top: 0;\n        color: #2d3748;\n      }#quiz-7aeac07f .code-block {\n        background: #1e1e1e;\n        color: #d4d4d4;\n        padding: 14px;\n        border-radius: 6px;\n        font-family: \"Menlo\", \"Monaco\", \"Courier New\", monospace;\n        font-size: 0.9em;\n        overflow-x: auto;\n        margin: 12px 0;\n        white-space: pre-wrap;\n      }#quiz-7aeac07f .options-adv {\n        list-style: none;\n        padding: 0;\n      }#quiz-7aeac07f .options-adv li {\n        padding: 14px 16px;\n        margin: 10px 0;\n        border: 2px solid #e2e8f0;\n        border-radius: 8px;\n        cursor: pointer;\n        transition: all 0.2s;\n      }#quiz-7aeac07f .options-adv li:hover:not(.disabled) {\n        border-color: #ed8936;\n        background: #fffaf0;\n      }#quiz-7aeac07f .options-adv li.disabled {\n        cursor: default;\n        opacity: 0.7;\n      }#quiz-7aeac07f .options-adv li.show-answer {\n        border-color: #48bb78;\n        background: #f0fff4;\n      }#quiz-7aeac07f .options-adv li.wrong {\n        border-color: #fc8181;\n        background: #fff5f5;\n      }#quiz-7aeac07f .feedback-adv {\n        margin-top: 16px;\n        padding: 14px;\n        border-radius: 8px;\n        display: none;\n        line-height: 1.6;\n      }#quiz-7aeac07f .feedback-adv.correct {\n        background: #f0fff4;\n        color: #276749;\n        display: block;\n      }#quiz-7aeac07f .feedback-adv.wrong {\n        background: #fff5f5;\n        color: #c53030;\n        display: block;\n      }#quiz-7aeac07f .feedback-adv \n      .score-adv {\n        text-align: center;\n        font-size: 1.4em;\n        padding: 24px;\n        background: white;\n        border-radius: 10px;\n        margin-top: 24px;\n        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);\n      }#quiz-7aeac07f .intro {\n        background: #ebf8ff;\n        padding: 16px;\n        border-radius: 8px;\n        margin-bottom: 20px;\n        color: #2c5282;\n      }\n<\/style>\n<h1>\u9032\u968e\u6e2c\u9a57\uff1aTanStack Query \u8cc7\u6599\u6293\u53d6\u8207\u5feb\u53d6\u7ba1\u7406<\/h1>\n    <div class=\"intro\">\n      <strong>\u6e2c\u9a57\u76ee\u6a19\uff1a<\/strong>\u9a57\u8b49\u4f60\u662f\u5426\u80fd\u5728\u5be6\u969b\u60c5\u5883\u4e2d\u61c9\u7528\u6240\u5b78\u3002<br \/>\n      \u5171 5 \u984c\uff0c\u5305\u542b\u60c5\u5883\u984c\u8207\u932f\u8aa4\u8a3a\u65b7\u984c\u3002\n    <\/div>\n\n    <!-- \u60c5\u5883\u984c 1 -->\n    <div class=\"question-adv\" id=\"qAdv1\">\n      <h3>1. \u4f60\u5728\u958b\u767c\u4e00\u500b\u96fb\u5546\u5f8c\u53f0\uff0c\u5546\u54c1\u5217\u8868\u9801\u9700\u8981\u986f\u793a\u5546\u54c1\u8cc7\u6599\u3002\u4f7f\u7528\u8005\u53cd\u6620\uff1a\u6bcf\u6b21\u5f9e\u5546\u54c1\u8a73\u60c5\u9801\u5207\u56de\u5217\u8868\u9801\u6642\uff0c\u90fd\u6703\u770b\u5230\u4e00\u77ac\u9593\u7684 Loading \u756b\u9762\uff0c\u9ad4\u9a57\u5f88\u5dee\u3002\u4f60\u61c9\u8a72\u600e\u9ebc\u8abf\u6574\uff1f <span class=\"badge scenario\">\u60c5\u5883\u984c<\/span><\/h3>\n      <div class=\"code-block\">\/\/ \u76ee\u524d\u7684\u5beb\u6cd5\nuseQuery({\n  queryKey: [&#8216;products&#8217;],\n  queryFn: fetchProducts,\n  staleTime: 0,        \/\/ \u9810\u8a2d\u503c\n  gcTime: 1000 * 60,   \/\/ 1 \u5206\u9418\n});<\/div>\n      <ul class=\"options-adv\">\n        <li onclick=\"checkAnswerAdv(1, 'A', 'B')\">A. \u628a <code>gcTime<\/code> \u8a2d\u70ba 0\uff0c\u8b93\u5feb\u53d6\u7acb\u523b\u6e05\u6389\uff0c\u5f37\u5236\u6bcf\u6b21\u91cd\u65b0\u6293\u53d6<\/li>\n        <li onclick=\"checkAnswerAdv(1, 'B', 'B')\">B. \u589e\u52a0 <code>staleTime<\/code>\uff08\u4f8b\u5982 5 \u5206\u9418\uff09\uff0c\u8b93\u5207\u56de\u9801\u9762\u6642\u76f4\u63a5\u7528\u5feb\u53d6\u8cc7\u6599\uff0c\u4e0d\u89f8\u767c\u91cd\u65b0\u6293\u53d6<\/li>\n        <li onclick=\"checkAnswerAdv(1, 'C', 'B')\">C. \u5728\u5143\u4ef6\u4e2d\u6539\u7528 <code>isFetching<\/code> \u4f86\u5224\u65b7\u662f\u5426\u986f\u793a Loading \u756b\u9762<\/li>\n        <li onclick=\"checkAnswerAdv(1, 'D', 'B')\">D. \u8a2d\u5b9a <code>refetchOnMount: false<\/code> \u5b8c\u5168\u95dc\u9589\u81ea\u52d5\u91cd\u65b0\u6293\u53d6<\/li>\n      <\/ul>\n      <div class=\"feedback-adv\" id=\"fbAdv1\"><\/div>\n    <\/div>\n\n    <!-- \u60c5\u5883\u984c 2 -->\n    <div class=\"question-adv\" id=\"qAdv2\">\n      <h3>2. \u4f60\u7684\u61c9\u7528\u6709\u4e00\u500b\u300c\u522a\u9664\u6587\u7ae0\u300d\u529f\u80fd\u3002\u522a\u9664\u6210\u529f\u5f8c\uff0c\u6587\u7ae0\u5217\u8868\u548c\u8a72\u6587\u7ae0\u7684\u8a73\u60c5\u5feb\u53d6\u90fd\u9700\u8981\u66f4\u65b0\u3002\u4ee5\u4e0b\u54ea\u7a2e <code>invalidateQueries<\/code> \u7684\u5beb\u6cd5\u6700\u5408\u9069\uff1f <span class=\"badge scenario\">\u60c5\u5883\u984c<\/span><\/h3>\n      <div class=\"code-block\">\/\/ Query Key Factory\nconst postKeys = {\n  all:     [&#8216;posts&#8217;] as const,\n  lists:   () => [&#8230;postKeys.all, &#8216;list&#8217;] as const,\n  list:    (filters) => [&#8230;postKeys.lists(), filters] as const,\n  details: () => [&#8230;postKeys.all, &#8216;detail&#8217;] as const,\n  detail:  (id) => [&#8230;postKeys.details(), id] as const,\n};<\/div>\n      <ul class=\"options-adv\">\n        <li onclick=\"checkAnswerAdv(2, 'A', 'A')\">A. <code>queryClient.invalidateQueries({ queryKey: postKeys.all })<\/code><\/li>\n        <li onclick=\"checkAnswerAdv(2, 'B', 'A')\">B. <code>queryClient.invalidateQueries({ queryKey: postKeys.lists() })<\/code><\/li>\n        <li onclick=\"checkAnswerAdv(2, 'C', 'A')\">C. <code>queryClient.invalidateQueries({ queryKey: postKeys.detail(deletedId) })<\/code><\/li>\n        <li onclick=\"checkAnswerAdv(2, 'D', 'A')\">D. \u5206\u5225\u547c\u53eb <code>invalidateQueries<\/code> \u5169\u6b21\uff0c\u4e00\u6b21\u50b3 <code>postKeys.lists()<\/code>\uff0c\u4e00\u6b21\u50b3 <code>postKeys.detail(deletedId)<\/code><\/li>\n      <\/ul>\n      <div class=\"feedback-adv\" id=\"fbAdv2\"><\/div>\n    <\/div>\n\n    <!-- \u60c5\u5883\u984c 3 -->\n    <div class=\"question-adv\" id=\"qAdv3\">\n      <h3>3. \u4f60\u7684\u61c9\u7528\u6709\u4e00\u500b\u4f7f\u7528\u8005\u8cc7\u6599\u9801\u9762\uff0c\u9700\u8981\u5148\u6293\u53d6\u76ee\u524d\u767b\u5165\u4f7f\u7528\u8005\u7684 ID\uff0c\u518d\u7528\u9019\u500b ID \u53bb\u6293\u4f7f\u7528\u8005\u7684\u8a02\u55ae\u5217\u8868\u3002\u4ee5\u4e0b\u54ea\u7a2e\u5beb\u6cd5\u6700\u6b63\u78ba\uff1f <span class=\"badge scenario\">\u60c5\u5883\u984c<\/span><\/h3>\n      <ul class=\"options-adv\">\n        <li onclick=\"checkAnswerAdv(3, 'A', 'C')\">A. \u5728\u4e00\u500b <code>useQuery<\/code> \u7684 <code>queryFn<\/code> \u88e1\u540c\u6642\u6293\u4f7f\u7528\u8005\u548c\u8a02\u55ae<\/li>\n        <li onclick=\"checkAnswerAdv(3, 'B', 'C')\">B. \u7528 <code>useEffect<\/code> \u76e3\u807d\u4f7f\u7528\u8005\u8cc7\u6599\uff0c\u6709\u4e86\u4e4b\u5f8c\u518d\u624b\u52d5\u547c\u53eb <code>fetch<\/code> \u6293\u8a02\u55ae<\/li>\n        <li onclick=\"checkAnswerAdv(3, 'C', 'C')\">C. \u7528\u5169\u500b <code>useQuery<\/code>\uff0c\u7b2c\u4e8c\u500b\u8a2d\u5b9a <code>enabled: !!userId<\/code>\uff0c\u7b49\u7b2c\u4e00\u500b\u7684\u8cc7\u6599\u56de\u4f86\u518d\u57f7\u884c<\/li>\n        <li onclick=\"checkAnswerAdv(3, 'D', 'C')\">D. \u7528 <code>useMutation<\/code> \u6293\u8a02\u55ae\uff0c\u56e0\u70ba\u5b83\u4f9d\u8cf4\u53e6\u4e00\u500b\u8acb\u6c42\u7684\u7d50\u679c<\/li>\n      <\/ul>\n      <div class=\"feedback-adv\" id=\"fbAdv3\"><\/div>\n    <\/div>\n\n    <!-- \u932f\u8aa4\u8a3a\u65b7\u984c 1 -->\n    <div class=\"question-adv\" id=\"qAdv4\">\n      <h3>4. \u540c\u4e8b\u5beb\u4e86\u4e00\u500b Optimistic Update\uff0c\u4f46\u4f7f\u7528\u8005\u56de\u5831\uff1a\u6309\u8b9a\u5f8c\u756b\u9762\u6709\u9583\u4e00\u4e0b\uff0clikes \u5148\u52a0 1 \u7136\u5f8c\u53c8\u8df3\u56de\u539f\u672c\u7684\u6578\u5b57\uff0c\u904e\u4e86\u4e00\u79d2\u518d\u8b8a\u6210\u6b63\u78ba\u7684\u6578\u5b57\u3002\u6700\u53ef\u80fd\u7684\u539f\u56e0\u662f\u4ec0\u9ebc\uff1f <span class=\"badge debug\">\u932f\u8aa4\u8a3a\u65b7<\/span><\/h3>\n      <div class=\"code-block\">const likeMutation = useMutation({\n  mutationFn: (postId) =>\n    fetch(`\/api\/posts\/${postId}\/like`, { method: &#8216;POST&#8217; }),\n\n  onMutate: async (postId) => {\n    const previousPost = queryClient.getQueryData([&#8216;posts&#8217;, postId]);\n    queryClient.setQueryData([&#8216;posts&#8217;, postId], (old) => ({\n      &#8230;old,\n      likes: old.likes + 1,\n    }));\n    return { previousPost };\n  },\n\n  onError: (err, postId, context) => {\n    queryClient.setQueryData([&#8216;posts&#8217;, postId], context.previousPost);\n  },\n\n  onSettled: (data, error, postId) => {\n    queryClient.invalidateQueries({ queryKey: [&#8216;posts&#8217;, postId] });\n  },\n});<\/div>\n      <ul class=\"options-adv\">\n        <li onclick=\"checkAnswerAdv(4, 'A', 'B')\">A. <code>onSettled<\/code> \u4e0d\u61c9\u8a72\u547c\u53eb <code>invalidateQueries<\/code>\uff0c\u9019\u5c0e\u81f4\u591a\u9918\u7684\u91cd\u65b0\u6293\u53d6<\/li>\n        <li onclick=\"checkAnswerAdv(4, 'B', 'B')\">B. <code>onMutate<\/code> \u4e2d\u5c11\u4e86 <code>await queryClient.cancelQueries()<\/code>\uff0c\u6b63\u5728\u9032\u884c\u7684\u820a\u67e5\u8a62\u56de\u4f86\u5f8c\u8986\u84cb\u4e86\u6a02\u89c0\u66f4\u65b0\u7684\u8cc7\u6599<\/li>\n        <li onclick=\"checkAnswerAdv(4, 'C', 'B')\">C. <code>mutationFn<\/code> \u6c92\u6709\u56de\u50b3 <code>res.json()<\/code>\uff0c\u5c0e\u81f4 <code>onSuccess<\/code> \u6536\u4e0d\u5230\u65b0\u8cc7\u6599<\/li>\n        <li onclick=\"checkAnswerAdv(4, 'D', 'B')\">D. <code>queryKey<\/code> \u61c9\u8a72\u7528 <code>['posts']<\/code> \u800c\u4e0d\u662f <code>['posts', postId]<\/code><\/li>\n      <\/ul>\n      <div class=\"feedback-adv\" id=\"fbAdv4\"><\/div>\n    <\/div>\n\n    <!-- \u932f\u8aa4\u8a3a\u65b7\u984c 2 -->\n    <div class=\"question-adv\" id=\"qAdv5\">\n      <h3>5. \u4f60\u7684\u540c\u4e8b\u5beb\u4e86\u4ee5\u4e0b\u7a0b\u5f0f\u78bc\uff0c\u4f46\u4f7f\u7528\u8005\u56de\u5831\uff1a\u9ede\u64ca\u4e0d\u5b58\u5728\u7684\u6587\u7ae0\uff08404\uff09\u6642\uff0c\u9801\u9762\u4e00\u76f4\u5361\u5728 Loading \u72c0\u614b\uff0c\u4e0d\u6703\u986f\u793a\u932f\u8aa4\u8a0a\u606f\u3002\u554f\u984c\u51fa\u5728\u54ea\u88e1\uff1f <span class=\"badge debug\">\u932f\u8aa4\u8a3a\u65b7<\/span><\/h3>\n      <div class=\"code-block\">function PostDetail({ postId }) {\n  const { data, isLoading, error } = useQuery({\n    queryKey: [&#8216;posts&#8217;, postId],\n    queryFn: () =>\n      fetch(`\/api\/posts\/${postId}`).then(res => res.json()),\n  });\n\n  if (isLoading) return &lt;p&gt;Loading&#8230;&lt;\/p&gt;;\n  if (error) return &lt;p&gt;Error: {error.message}&lt;\/p&gt;;\n  return &lt;h1&gt;{data.title}&lt;\/h1&gt;;\n}<\/div>\n      <ul class=\"options-adv\">\n        <li onclick=\"checkAnswerAdv(5, 'A', 'C')\">A. <code>queryKey<\/code> \u683c\u5f0f\u4e0d\u5c0d\uff0c\u61c9\u8a72\u53ea\u7528 <code>['posts']<\/code> \u4e0d\u9700\u8981\u5305\u542b <code>postId<\/code><\/li>\n        <li onclick=\"checkAnswerAdv(5, 'B', 'C')\">B. \u61c9\u8a72\u7528 <code>useMutation<\/code> \u800c\u4e0d\u662f <code>useQuery<\/code> \u4f86\u8655\u7406\u53ef\u80fd\u5931\u6557\u7684\u8acb\u6c42<\/li>\n        <li onclick=\"checkAnswerAdv(5, 'C', 'C')\">C. <code>fetch<\/code> \u5728\u6536\u5230 404 \u6642\u4e0d\u6703\u81ea\u52d5 throw \u932f\u8aa4\uff0c<code>queryFn<\/code> \u9700\u8981\u624b\u52d5\u6aa2\u67e5 <code>res.ok<\/code> \u4e26\u4e1f\u51fa\u932f\u8aa4<\/li>\n        <li onclick=\"checkAnswerAdv(5, 'D', 'C')\">D. \u7f3a\u5c11 <code>enabled<\/code> \u8a2d\u5b9a\uff0c<code>postId<\/code> \u53ef\u80fd\u9084\u6c92\u6e96\u5099\u597d\u5c31\u958b\u59cb\u6293\u53d6<\/li>\n      <\/ul>\n      <div class=\"feedback-adv\" id=\"fbAdv5\"><\/div>\n    <\/div>\n\n    <div class=\"score-adv\" id=\"scoreAdv\" style=\"display:none;\"><\/div>\n<script>\n\n      let answeredAdv = 0;\n      let correctAdv = 0;\n      const totalAdv = 5;\n      const explanationsAdv = {\n        1: \"\u554f\u984c\u7684\u6839\u6e90\u662f <code>staleTime: 0<\/code>\uff08\u9810\u8a2d\u503c\uff09\uff0c\u9019\u4ee3\u8868\u8cc7\u6599\u4e00\u56de\u4f86\u5c31\u7b97\u904e\u671f\u3002\u5207\u56de\u5217\u8868\u9801\u6642\uff0c\u96d6\u7136\u5feb\u53d6\u88e1\u6709\u8cc7\u6599\uff0c\u4f46\u56e0\u70ba\u5df2\u7d93 stale\uff0c\u6703\u7acb\u523b\u89f8\u767c\u80cc\u666f\u91cd\u65b0\u6293\u53d6\u3002\u96d6\u7136 stale-while-revalidate \u6703\u5148\u986f\u793a\u820a\u8cc7\u6599\uff0c\u4f46 <code>isLoading<\/code> \u5728\u6709\u5feb\u53d6\u6642\u78ba\u5be6\u662f <code>false<\/code>\uff0c\u771f\u6b63\u9020\u6210\u9583\u720d\u7684\u662f\u91cd\u65b0\u6293\u53d6\u904e\u7a0b\u3002\u589e\u52a0 <code>staleTime<\/code> \u662f\u6700\u4f73\u89e3\uff1a\u5728\u65b0\u9bae\u6642\u9593\u5167\u5207\u56de\u9801\u9762\uff0c\u76f4\u63a5\u7528\u5feb\u53d6\u3001\u4e0d\u89f8\u767c\u8acb\u6c42\u3002\u9078\u9805 C \u7528 <code>isFetching<\/code> \u5224\u65b7\u96d6\u7136\u4e5f\u80fd\u6539\u5584\uff0c\u4f46\u6cbb\u6a19\u4e0d\u6cbb\u672c\u3002\u9078\u9805 D \u5b8c\u5168\u95dc\u9589\u91cd\u65b0\u6293\u53d6\u53ef\u80fd\u5c0e\u81f4\u8cc7\u6599\u6c38\u9060\u4e0d\u66f4\u65b0\u3002\",\n        2: \"\u4f7f\u7528 <code>postKeys.all<\/code>\uff08\u5373 <code>['posts']<\/code>\uff09\u4f5c\u70ba <code>invalidateQueries<\/code> \u7684\u53c3\u6578\uff0c\u6703\u900f\u904e\u524d\u7db4\u5339\u914d\u5237\u65b0\u6240\u6709\u4ee5 <code>['posts']<\/code> \u958b\u982d\u7684\u5feb\u53d6\uff0c\u5305\u62ec\u5217\u8868\u548c\u6240\u6709\u8a73\u60c5\u3002\u9019\u662f\u6700\u7c21\u6f54\u7684\u5beb\u6cd5\u3002\u9078\u9805 B \u53ea\u5237\u65b0\u5217\u8868\uff0c\u88ab\u522a\u9664\u7684\u6587\u7ae0\u8a73\u60c5\u5feb\u53d6\u4e0d\u6703\u66f4\u65b0\u3002\u9078\u9805 C \u53ea\u5237\u65b0\u7279\u5b9a\u6587\u7ae0\u8a73\u60c5\uff0c\u5217\u8868\u4e0d\u6703\u66f4\u65b0\u3002\u9078\u9805 D \u96d6\u7136\u529f\u80fd\u6b63\u78ba\uff0c\u4f46\u591a\u6b64\u4e00\u8209\u2014\u2014\u56e0\u70ba <code>postKeys.all<\/code> \u5df2\u7d93\u6db5\u84cb\u4e86\u5169\u8005\u3002\",\n        3: \"\u9019\u662f\u300c\u4f9d\u8cf4\u67e5\u8a62\u300d\u7684\u7d93\u5178\u5834\u666f\u3002\u4f7f\u7528\u5169\u500b <code>useQuery<\/code>\uff0c\u7b2c\u4e8c\u500b\u7528 <code>enabled: !!userId<\/code> \u63a7\u5236\uff0c\u7b49\u7b2c\u4e00\u500b\u67e5\u8a62\u7684 <code>userId<\/code> \u6709\u503c\u5f8c\u624d\u57f7\u884c\u3002\u9019\u6a23\u5169\u4efd\u8cc7\u6599\u5404\u81ea\u6709\u7368\u7acb\u7684\u5feb\u53d6\u3001\u8f09\u5165\u72c0\u614b\u548c\u932f\u8aa4\u8655\u7406\u3002\u9078\u9805 A \u628a\u5169\u500b\u8acb\u6c42\u585e\u5728\u4e00\u8d77\u6703\u5c0e\u81f4\u5feb\u53d6\u7c92\u5ea6\u592a\u7c97\uff0c\u7121\u6cd5\u7368\u7acb\u66f4\u65b0\u3002\u9078\u9805 B \u56de\u5230\u4e86\u624b\u52d5\u7ba1\u7406\u7684\u8001\u8def\uff0c\u5931\u53bb\u4e86 TanStack Query \u7684\u5feb\u53d6\u512a\u52e2\u3002\u9078\u9805 D \u6982\u5ff5\u932f\u8aa4\u2014\u2014<code>useMutation<\/code> \u662f\u7528\u65bc\u5beb\u5165\u64cd\u4f5c\uff08POST\/PUT\/DELETE\uff09\uff0c\u4e0d\u662f\u7528\u65bc\u8b80\u53d6\u3002\",\n        4: \"Optimistic Update \u4e2d\uff0c<code>onMutate<\/code> \u5fc5\u9808\u5148\u547c\u53eb <code>await queryClient.cancelQueries()<\/code> \u53d6\u6d88\u6b63\u5728\u9032\u884c\u7684\u67e5\u8a62\u3002\u5982\u679c\u5c11\u4e86\u9019\u6b65\uff0c\u53ef\u80fd\u6709\u4e00\u500b\u4e4b\u524d\u89f8\u767c\u7684\u80cc\u666f\u67e5\u8a62\u6b63\u5728\u9032\u884c\u4e2d\uff0c\u5b83\u7684\u56de\u61c9\u6703\u5728\u6a02\u89c0\u66f4\u65b0\u4e4b\u5f8c\u56de\u4f86\uff0c\u7528\u820a\u8cc7\u6599\u8986\u84cb\u6389\u4f60\u525b\u8a2d\u5b9a\u7684\u6a02\u89c0\u503c\uff08likes + 1\uff09\uff0c\u9020\u6210\u756b\u9762\u9583\u56de\u3002\u63a5\u8457 <code>onSettled<\/code> \u7684 <code>invalidateQueries<\/code> \u89f8\u767c\u6700\u7d42\u7684\u91cd\u65b0\u6293\u53d6\uff0c\u624d\u986f\u793a\u6b63\u78ba\u6578\u5b57\u3002\u6240\u4ee5\u4f7f\u7528\u8005\u770b\u5230\u7684\u9806\u5e8f\u662f\uff1a+1 \u2192 \u88ab\u820a\u67e5\u8a62\u8986\u84cb\u56de\u539f\u503c \u2192 \u6700\u7d42\u91cd\u65b0\u6293\u53d6\u5f8c\u986f\u793a\u6b63\u78ba\u503c\u3002\",\n        5: \"\u9019\u662f\u4f7f\u7528 <code>fetch<\/code> \u642d\u914d TanStack Query \u6700\u5e38\u898b\u7684\u9677\u9631\u3002<code>fetch<\/code> API \u5728\u6536\u5230 HTTP 4xx\/5xx \u56de\u61c9\u6642\u4e0d\u6703\u81ea\u52d5 throw \u932f\u8aa4\uff0c\u5b83\u53ea\u5728\u7db2\u8def\u6545\u969c\u6642\u624d\u6703 reject\u3002\u6240\u4ee5\u7576\u5f8c\u7aef\u56de\u50b3 404 \u6642\uff0c<code>fetch<\/code> \u7167\u5e38 resolve\uff0c<code>queryFn<\/code> \u4e0d\u6703\u4e1f\u51fa\u932f\u8aa4\uff0cTanStack Query \u7684 <code>error<\/code> \u72c0\u614b\u6c38\u9060\u4e0d\u6703\u88ab\u89f8\u767c\u3002\u4fee\u6b63\u65b9\u5f0f\u662f\u5728 <code>queryFn<\/code> \u4e2d\u52a0\u4e0a <code>if (!res.ok) throw new Error(`HTTP ${res.status}`)<\/code>\uff0c\u624b\u52d5\u628a HTTP \u932f\u8aa4\u8f49\u6210 JavaScript \u932f\u8aa4\u3002\"\n      };\n\n      function checkAnswerAdv(qNum, selected, correctAns) {\n        const question = document.getElementById(\"qAdv\" + qNum);\n        if (question.classList.contains(\"answered\")) return;\n\n        question.classList.add(\"answered\");\n        answeredAdv++;\n\n        const options = question.querySelectorAll(\".options-adv li\");\n        options.forEach((opt) => {\n          opt.classList.add(\"disabled\");\n          if (opt.textContent.startsWith(correctAns + \".\")) {\n            opt.classList.add(\"show-answer\");\n          }\n        });\n\n        const feedback = document.getElementById(\"fbAdv\" + qNum);\n        if (selected === correctAns) {\n          correctAdv++;\n          feedback.className = \"feedback-adv correct\";\n          feedback.innerHTML = \"\u2713 \u6b63\u78ba\uff01\" + explanationsAdv[qNum];\n        } else {\n          feedback.className = \"feedback-adv wrong\";\n          feedback.innerHTML =\n            \"\u2717 \u932f\u8aa4\u3002\u6b63\u78ba\u7b54\u6848\u662f \" + correctAns + \"\u3002\" + explanationsAdv[qNum];\n          options.forEach((opt) => {\n            if (opt.textContent.startsWith(selected + \".\")) {\n              opt.classList.add(\"wrong\");\n            }\n          });\n        }\n\n        if (answeredAdv === totalAdv) {\n          const scoreDiv = document.getElementById(\"scoreAdv\");\n          scoreDiv.style.display = \"block\";\n          let msg = \"\";\n          if (correctAdv === totalAdv) msg = \"\ud83c\udfaf \u5b8c\u7f8e\uff01\u4f60\u5df2\u7d93\u6e96\u5099\u597d\u5be6\u6230\u4e86\uff01\";\n          else if (correctAdv >= Math.ceil(totalAdv * 0.8))\n            msg = \"\ud83d\udcaa \u5f88\u68d2\uff01\u518d\u8907\u7fd2\u4e00\u4e0b\u932f\u7684\u984c\u76ee\";\n          else if (correctAdv >= Math.ceil(totalAdv * 0.6))\n            msg = \"\ud83d\udcd6 \u5efa\u8b70\u91cd\u8b80\u76f8\u95dc\u6bb5\u843d\u5f8c\u518d\u8a66\u4e00\u6b21\";\n          else msg = \"\ud83d\udd04 \u5efa\u8b70\u91cd\u65b0\u95b1\u8b80\u6587\u4ef6\uff0c\u7279\u5225\u6ce8\u610f\u64cd\u4f5c\u6d41\u7a0b\";\n          scoreDiv.innerHTML =\n            \"\u6e2c\u9a57\u5b8c\u6210\uff01\u5f97\u5206\uff1a\" + correctAdv + \" \/ \" + totalAdv + \"<br>\" + msg;\n        }\n      }\n    \n<\/script>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u6e2c\u9a57\uff1aTanStack Query \u8cc7\u6599\u6293\u53d6\u8207\u5feb\u53d6\u7ba1\u7406 \u5171 5 \u984c\uff0c\u9ede\u9078\u7b54\u6848\u5f8c\u6703\u7acb\u5373\u986f\u793a\u7d50\u679c 1. \u70ba\u4ec0\u9ebc\u5f9e  [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"rolpb_likes":0,"footnotes":""},"categories":[639],"tags":[647,278,284,281,646],"class_list":["post-717","post","type-post","status-publish","format-standard","hentry","category-react-tanstack","tag-stale-while-revalidate","tag-tanstack-query","tag-usemutation","tag-usequery","tag-646"],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":7}},"_links":{"self":[{"href":"https:\/\/blog.itsmygo.uk\/wordpress\/wp-json\/wp\/v2\/posts\/717","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.itsmygo.uk\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.itsmygo.uk\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.itsmygo.uk\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.itsmygo.uk\/wordpress\/wp-json\/wp\/v2\/comments?post=717"}],"version-history":[{"count":0,"href":"https:\/\/blog.itsmygo.uk\/wordpress\/wp-json\/wp\/v2\/posts\/717\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.itsmygo.uk\/wordpress\/wp-json\/wp\/v2\/media?parent=717"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.itsmygo.uk\/wordpress\/wp-json\/wp\/v2\/categories?post=717"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.itsmygo.uk\/wordpress\/wp-json\/wp\/v2\/tags?post=717"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}