{"id":47754,"date":"2023-05-24T14:46:25","date_gmt":"2022-11-16T19:39:28","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%94%a8graphql%e9%99%90%e5%88%b6%e6%9f%a5%e8%af%a2%e6%89%80%e8%8e%b7%e5%8f%96%e7%9a%84%e6%95%b0%e6%8d%ae%e3%80%82\/"},"modified":"2024-04-30T05:47:37","modified_gmt":"2024-04-29T21:47:37","slug":"%e7%94%a8graphql%e9%99%90%e5%88%b6%e6%9f%a5%e8%af%a2%e6%89%80%e8%8e%b7%e5%8f%96%e7%9a%84%e6%95%b0%e6%8d%ae%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%94%a8graphql%e9%99%90%e5%88%b6%e6%9f%a5%e8%af%a2%e6%89%80%e8%8e%b7%e5%8f%96%e7%9a%84%e6%95%b0%e6%8d%ae%e3%80%82\/","title":{"rendered":"\u7528GraphQL\u9650\u5236\u67e5\u8be2\u6240\u83b7\u53d6\u7684\u6570\u636e"},"content":{"rendered":"<h2>\u9996\u5148<\/h2>\n<p>\u5f53\u4eceGraphQL\u5ba2\u6237\u7aef\u8c03\u7528\u67e5\u8be2\u65f6\uff0c\u5982\u679c\u6ca1\u6709\u9650\u5236\u8981\u83b7\u53d6\u7684\u6570\u636e\u3002<\/p>\n<p>\u6709\u53ef\u80fd\u6536\u5230\u610f\u6599\u4e4b\u5916\u7684\u5927\u91cf\u6570\u636e\u8bf7\u6c42\u6216\u53d7\u5230\u6076\u610f\u653b\u51fb\u7684\u5371\u9669\u3002<\/p>\n<p>\u4e3a\u4e86\u9632\u6b62\u8fd9\u79cd\u60c5\u51b5\u53d1\u751f\uff0c\u53ef\u4ee5\u5728GraphQL\u670d\u52a1\u5668\u7aef\u91c7\u53d6\u63aa\u65bd\u3002<\/p>\n<h2>\u73af\u5883<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">GraphQL Server<\/ul>\n<\/li>\n<\/ul>\n<p>Node.js<br \/>\nExpress<br \/>\nMongoDB<br \/>\nApollo Server<\/p>\n<p>GraphQL Client<\/p>\n<p>React.js<br \/>\nApollo Client<\/p>\n<h2>\u6570\u636e\u9650\u5236<\/h2>\n<p>\u5047\u8bbe\u4ee5\u4e0b\u7684\u6a21\u5f0f\u67e5\u8be2\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">type<\/span> <span class=\"n\">Photo<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">id<\/span><span class=\"p\">:<\/span> <span class=\"nb\">ID<\/span><span class=\"p\">!<\/span>\r\n    <span class=\"n\">url<\/span><span class=\"p\">:<\/span> <span class=\"nb\">String<\/span><span class=\"p\">!<\/span>\r\n    <span class=\"n\">name<\/span><span class=\"p\">:<\/span> <span class=\"nb\">String<\/span><span class=\"p\">!<\/span>\r\n    <span class=\"n\">postedBy<\/span><span class=\"p\">:<\/span> <span class=\"n\">User<\/span><span class=\"p\">!<\/span>\r\n    <span class=\"n\">taggedUsers<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span><span class=\"n\">User<\/span><span class=\"p\">!]!<\/span>\r\n    <span class=\"n\">created<\/span><span class=\"p\">:<\/span> <span class=\"n\">DateTime<\/span><span class=\"p\">!<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">type<\/span> <span class=\"n\">User<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">name<\/span><span class=\"p\">:<\/span> <span class=\"nb\">String<\/span>\r\n    <span class=\"n\">avatar<\/span><span class=\"p\">:<\/span> <span class=\"nb\">String<\/span>\r\n    <span class=\"n\">postedPhotos<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span><span class=\"n\">Photo<\/span><span class=\"p\">!]!<\/span>\r\n    <span class=\"n\">inPhotos<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span><span class=\"n\">Photo<\/span><span class=\"p\">!]!<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"k\">query<\/span> <span class=\"n\">allPhotos<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">allPhotos<\/span><span class=\"p\">(<\/span><span class=\"n\">first<\/span><span class=\"err\">=99999<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">name<\/span>\r\n        <span class=\"n\">url<\/span>\r\n        <span class=\"n\">postedBy<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"n\">name<\/span>\r\n            <span class=\"n\">avatar<\/span>\r\n        <span class=\"p\">}<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span> \r\n<\/code><\/pre>\n<p>\u5982\u679c\u5728\u67e5\u8be2\u53c2\u6570\u4e2d\u6dfb\u52a0first\u53c2\u6570\uff0c\u5c31\u53ef\u4ee5\u6307\u5b9a\u8981\u8fd4\u56de\u7684\u6570\u636e\u8bb0\u5f55\u6570\u91cf\u3002\u5728\u4e0a\u8ff0\u67e5\u8be2\u4e2d\uff0c\u7531\u4e8e\u6307\u5b9a\u4e86first\u53c2\u6570\u4e3a99999\uff0c\u6240\u4ee5\u4f1a\u53d1\u751f\u83b7\u53d699999\u6761\u6570\u636e\u7684\u60c5\u51b5\u3002<\/p>\n<h3>\u9650\u5236\u51b3\u89e3\u8005<\/h3>\n<p>\u901a\u8fc7\u5728\u67e5\u8be2\u89e3\u6790\u5668\u4e2d\u6dfb\u52a0\u53c2\u6570\u68c0\u67e5\u5904\u7406\uff0c\u9650\u5236\u6570\u636e\u5927\u5c0f\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nx\">allPhots<\/span><span class=\"p\">:<\/span> <span class=\"p\">(<\/span><span class=\"nx\">root<\/span><span class=\"p\">,<\/span> <span class=\"nx\">data<\/span><span class=\"p\">,<\/span> <span class=\"nx\">context<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nx\">data<\/span><span class=\"p\">.<\/span><span class=\"nx\">first<\/span> <span class=\"o\">&gt;<\/span> <span class=\"mi\">100<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">throw<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">Erroe<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">Only 100 photos can be requested at a time<\/span><span class=\"dl\">'<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<h2>\u67e5\u8be2\u6df1\u5ea6\u7684\u9650\u5236<\/h2>\n<p>GraphQL\u63d0\u4f9b\u4e86\u4e00\u4e2a\u4f18\u70b9\uff0c\u5373\u53ef\u4ee5\u4e00\u6b21\u6027\u67e5\u8be2\u76f8\u5173\u7684\u6570\u636e\u3002\u4f8b\u5982\uff0c\u5047\u8bbe\u6709\u4e00\u4e2a\u540d\u4e3aPhoto\u7684API\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">query<\/span> <span class=\"n\">getPhoto<\/span><span class=\"p\">(<\/span><span class=\"nv\">$id<\/span><span class=\"p\">:<\/span> <span class=\"nb\">ID<\/span><span class=\"p\">!)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">Photo<\/span><span class=\"p\">(<\/span><span class=\"n\">id<\/span><span class=\"p\">:<\/span> <span class=\"nv\">$id<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">name<\/span>\r\n        <span class=\"n\">url<\/span>\r\n        <span class=\"n\">postedBy<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"n\">name<\/span>\r\n            <span class=\"n\">avatar<\/span>\r\n            <span class=\"n\">postedPhotos<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"n\">name<\/span>\r\n                <span class=\"n\">url<\/span>\r\n            <span class=\"p\">}<\/span>\r\n        <span class=\"p\">}<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span> \r\n<\/code><\/pre>\n<p>\u7531\u4e8e\u67e5\u8be2\u6d89\u53ca\u5230\u4e24\u4e2a\u76f8\u5173\u5b57\u6bb5postedBy\u548cpostedPhoto\uff0c\u53ef\u4ee5\u8bf4\u67e5\u8be2\u7684\u6df1\u5ea6\u4e3a3\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">query<\/span> <span class=\"n\">getPhoto<\/span><span class=\"p\">(<\/span><span class=\"nv\">$id<\/span><span class=\"p\">:<\/span> <span class=\"nb\">ID<\/span><span class=\"p\">!)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">Photo<\/span><span class=\"p\">(<\/span><span class=\"n\">id<\/span><span class=\"p\">:<\/span> <span class=\"nv\">$id<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">name<\/span> <span class=\"c\"># \u6df1\u3055\uff1a1<\/span>\r\n        <span class=\"n\">url<\/span>  <span class=\"c\"># \u6df1\u3055\uff1a1<\/span>\r\n        <span class=\"n\">postedBy<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"n\">name<\/span>    <span class=\"c\"># \u6df1\u3055\uff1a2<\/span>\r\n            <span class=\"n\">avatar<\/span>  <span class=\"c\"># \u6df1\u3055\uff1a2<\/span>\r\n            <span class=\"n\">postedPhotos<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"n\">name<\/span>   <span class=\"c\"># \u6df1\u3055\uff1a3<\/span>\r\n                <span class=\"n\">url<\/span>    <span class=\"c\"># \u6df1\u3055\uff1a3<\/span>\r\n            <span class=\"p\">}<\/span>\r\n        <span class=\"p\">}<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span> \r\n<\/code><\/pre>\n<p>\u6b64\u5916\uff0c\u5229\u7528\u4e0a\u8ff0\u7684\u67e5\u8be2\uff0c\u60a8\u8fd8\u53ef\u4ee5\u53d1\u51fa\u6df1\u5ea6\u66f4\u6df1\u7684\u67e5\u8be2\uff0c\u5982\u4e0b\u6240\u793a\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">query<\/span> <span class=\"n\">getPhoto<\/span><span class=\"p\">(<\/span><span class=\"nv\">$id<\/span><span class=\"p\">:<\/span> <span class=\"nb\">ID<\/span><span class=\"p\">!)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">Photo<\/span><span class=\"p\">(<\/span><span class=\"n\">id<\/span><span class=\"p\">:<\/span> <span class=\"nv\">$id<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">name<\/span> <span class=\"c\"># \u6df1\u3055\uff1a1<\/span>\r\n        <span class=\"n\">url<\/span>  <span class=\"c\"># \u6df1\u3055\uff1a1<\/span>\r\n        <span class=\"n\">postedBy<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"n\">name<\/span>    <span class=\"c\"># \u6df1\u3055\uff1a2<\/span>\r\n            <span class=\"n\">avatar<\/span>  <span class=\"c\"># \u6df1\u3055\uff1a2<\/span>\r\n            <span class=\"n\">postedPhotos<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"n\">name<\/span>   <span class=\"c\"># \u6df1\u3055\uff1a3<\/span>\r\n                <span class=\"n\">url<\/span>    <span class=\"c\"># \u6df1\u3055\uff1a3<\/span>\r\n                <span class=\"n\">taggedUsers<\/span> <span class=\"p\">{<\/span>\r\n                    <span class=\"n\">name<\/span>    <span class=\"c\"># \u6df1\u3055\uff1a4<\/span>\r\n                    <span class=\"n\">avatar<\/span>  <span class=\"c\"># \u6df1\u3055\uff1a4<\/span>\r\n                    <span class=\"n\">postedPhots<\/span> <span class=\"p\">{<\/span>\r\n                        <span class=\"n\">name<\/span>    <span class=\"c\"># \u6df1\u3055\uff1a5<\/span>\r\n                        <span class=\"n\">url<\/span>     <span class=\"c\"># \u6df1\u3055\uff1a5<\/span>\r\n                    <span class=\"p\">}<\/span>\r\n                <span class=\"p\">}<\/span>\r\n            <span class=\"p\">}<\/span>\r\n        <span class=\"p\">}<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span> \r\n<\/code><\/pre>\n<p>\u5f53\u67e5\u8be2\u7684\u6df1\u5ea6\u589e\u52a0\u65f6\uff0c\u670d\u52a1\u5668\u7684\u8d1f\u8f7d\u4f1a\u5448\u6307\u6570\u7ea7\u589e\u957f\u3002<\/p>\n<p>\u4e3a\u4e86\u4e0d\u5141\u8bb8\u8fd9\u6837\u7684\u67e5\u8be2\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528npm\u5305\u6765\u5b9e\u73b0\u67e5\u8be2\u7684\u6df1\u5ea6\u9650\u5236\u3002<\/p>\n<pre class=\"post-pre\"><code>npm install graphql-depth-limit\r\n<\/code><\/pre>\n<p>\u5b89\u88c5\u4e0a\u8ff0\u8f6f\u4ef6\u5305\u540e\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528depthLimit\u51fd\u6570\u5c06\u9a8c\u8bc1\u89c4\u5219\u6dfb\u52a0\u5230GraphQL\u670d\u52a1\u5668\u7684\u8bbe\u7f6e\u4e2d\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">const<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">ApolloServer<\/span> <span class=\"p\">}<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">require<\/span><span class=\"p\">(<\/span><span class=\"s2\">`apollo-server-express`<\/span><span class=\"p\">);<\/span>\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">depthLimit<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">require<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">graphql-depth-limit<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n<span class=\"p\">.....<\/span>\r\n\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">server<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">ApolloServer<\/span><span class=\"p\">({<\/span>\r\n    <span class=\"nx\">typeDefs<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"nx\">resolvers<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"na\">validationRules<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span><span class=\"nx\">depthLimit<\/span><span class=\"p\">(<\/span><span class=\"mi\">5<\/span><span class=\"p\">)],<\/span>\r\n    <span class=\"p\">.....<\/span>\r\n<span class=\"p\">})<\/span>\r\n\r\n<\/code><\/pre>\n<h2>\u67e5\u8be2\u590d\u6742\u6027\u7684\u9650\u5236<\/h2>\n<p>\u63a5\u4e0b\u6765\u6211\u4eec\u8003\u8651\u67e5\u8be2\u590d\u6742\u5ea6\u9ad8\u7684\u60c5\u51b5\u4e0b\u7684\u67e5\u8be2\u3002<br \/>\n\u5373\u4f7f\u50cf\u4e0a\u9762\u90a3\u6837\u67e5\u8be2\u7684\u6df1\u5ea6\u5e76\u4e0d\u592a\u6df1\uff0c\u4f46\u662f\u6709\u8bb8\u591a\u88ab\u8be2\u95ee\u7684\u5b57\u6bb5\u4f1a\u5bfc\u81f4\u67e5\u8be2\u8d1f\u8f7d\u8f83\u9ad8\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">query<\/span> <span class=\"n\">everything<\/span><span class=\"p\">(<\/span><span class=\"nv\">$id<\/span><span class=\"p\">:<\/span> <span class=\"nb\">ID<\/span><span class=\"p\">!)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">totalUsers<\/span>  <span class=\"c\"># \u6df1\u3055\uff1a1<\/span>\r\n    <span class=\"n\">Photo<\/span><span class=\"p\">(<\/span><span class=\"n\">id<\/span><span class=\"p\">:<\/span> <span class=\"nv\">$id<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">name<\/span>    <span class=\"c\"># \u6df1\u3055\uff1a1<\/span>\r\n        <span class=\"n\">url<\/span>     <span class=\"c\"># \u6df1\u3055\uff1a1<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"n\">allUsers<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">id<\/span>      <span class=\"c\"># \u6df1\u3055\uff1a2<\/span>\r\n        <span class=\"n\">name<\/span>    <span class=\"c\"># \u6df1\u3055\uff1a2<\/span>\r\n        <span class=\"n\">avatar<\/span>  <span class=\"c\"># \u6df1\u3055\uff1a2<\/span>\r\n        <span class=\"n\">postedPhotos<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"n\">name<\/span>    <span class=\"c\"># \u6df1\u3055\uff1a3<\/span>\r\n            <span class=\"n\">url<\/span>     <span class=\"c\"># \u6df1\u3055\uff1a3<\/span>\r\n        <span class=\"p\">}<\/span>\r\n        <span class=\"n\">inPhotos<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"n\">name<\/span>    <span class=\"c\"># \u6df1\u3055\uff1a3<\/span>\r\n            <span class=\"n\">url<\/span>     <span class=\"c\"># \u6df1\u3055\uff1a3<\/span>\r\n            <span class=\"n\">taggedUsers<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"n\">id<\/span>  <span class=\"c\"># \u6df1\u3055\uff1a4<\/span>\r\n            <span class=\"p\">}<\/span>\r\n        <span class=\"p\">}<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span> \r\n<\/code><\/pre>\n<p>\u6240\u6709\u7684\u67e5\u8be2\u5728\u67e5\u8be2\u6df1\u5ea6\u9650\u5236\u4e3a5\u4ee5\u5185\uff0c\u4f46\u67e5\u8be2\u7684\u5b57\u6bb5\u6570\u91cf\u5f88\u591a\uff0c\u4f1a\u5bfc\u81f4\u975e\u5e38\u9ad8\u7684\u8ba1\u7b97\u6210\u672c\u3002<\/p>\n<p>\u8fd8\u6709\u652f\u6301\u5b9e\u65bd\u67e5\u8be2\u590d\u6742\u5ea6\u9650\u5236\u7684npm\u5305\u3002<\/p>\n<pre class=\"post-pre\"><code>npm install graphql-validation-complexity\r\n<\/code><\/pre>\n<p>\u8fd9\u4e2agraphql-validation-complexity\u89c4\u5b9a\u4e86\u786e\u5b9a\u67e5\u8be2\u590d\u6742\u5ea6\u7684\u89c4\u5219\u3002<br \/>\n\u6bcf\u4e2a\u6807\u91cf\u5b57\u6bb5\u90fd\u8bbe\u5b9a\u4e3a\u503c1\uff0c\u5982\u679c\u5b57\u6bb5\u662f\u5217\u8868\uff0c\u5219\u589e\u52a0\u7684\u503c\u662f\u539f\u6765\u503c\u768410\u500d\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">query<\/span> <span class=\"n\">everything<\/span><span class=\"p\">(<\/span><span class=\"nv\">$id<\/span><span class=\"p\">:<\/span> <span class=\"nb\">ID<\/span><span class=\"p\">!)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">totalUsers<\/span>  <span class=\"c\"># \u8907\u96d1\u5ea6\uff1a1<\/span>\r\n    <span class=\"n\">Photo<\/span><span class=\"p\">(<\/span><span class=\"n\">id<\/span><span class=\"p\">:<\/span> <span class=\"nv\">$id<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">name<\/span>    <span class=\"c\"># \u8907\u96d1\u5ea6\uff1a1<\/span>\r\n        <span class=\"n\">url<\/span>     <span class=\"c\"># \u8907\u96d1\u5ea6\uff1a1<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"n\">allUsers<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">id<\/span>      <span class=\"c\"># \u8907\u96d1\u5ea6\uff1a10<\/span>\r\n        <span class=\"n\">name<\/span>    <span class=\"c\"># \u8907\u96d1\u5ea6\uff1a10<\/span>\r\n        <span class=\"n\">avatar<\/span>  <span class=\"c\"># \u8907\u96d1\u5ea6\uff1a10<\/span>\r\n        <span class=\"n\">postedPhotos<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"n\">name<\/span>    <span class=\"c\"># \u8907\u96d1\u5ea6\uff1a100<\/span>\r\n            <span class=\"n\">url<\/span>     <span class=\"c\"># \u8907\u96d1\u5ea6\uff1a100<\/span>\r\n        <span class=\"p\">}<\/span>\r\n        <span class=\"n\">inPhotos<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"n\">name<\/span>    <span class=\"c\"># \u8907\u96d1\u5ea6\uff1a100<\/span>\r\n            <span class=\"n\">url<\/span>     <span class=\"c\"># \u8907\u96d1\u5ea6\uff1a100<\/span>\r\n            <span class=\"n\">taggedUsers<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"n\">id<\/span>  <span class=\"c\"># \u8907\u96d1\u5ea6\uff1a1000<\/span>\r\n            <span class=\"p\">}<\/span>\r\n        <span class=\"p\">}<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>       <span class=\"c\"># \u7dcf\u8907\u96d1\u5ea61433<\/span>\r\n<\/code><\/pre>\n<p>\u5c06\u67e5\u8be2\u7684\u590d\u6742\u5ea6\u9650\u5236\u8bbe\u4e3a1000\uff0c\u53ef\u4ee5\u9632\u6b62\u6267\u884c\u6b64\u7c7b\u7279\u6b8a\u67e5\u8be2\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">const<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">createComplexityLimitRule<\/span> <span class=\"p\">}<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">require<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">graphql-validation-complexity<\/span><span class=\"dl\">'<\/span><span class=\"p\">)<\/span>\r\n\r\n<span class=\"p\">.....<\/span>\r\n\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">server<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">ApolloServer<\/span><span class=\"p\">({<\/span>\r\n    <span class=\"nx\">typeDefs<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"nx\">resolvers<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"na\">validationRules<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span>\r\n      <span class=\"nx\">depthLimit<\/span><span class=\"p\">(<\/span><span class=\"mi\">5<\/span><span class=\"p\">),<\/span>\r\n      <span class=\"nx\">createComplexityLimitRule<\/span><span class=\"p\">(<\/span><span class=\"mi\">1000<\/span><span class=\"p\">,<\/span> <span class=\"p\">{<\/span>\r\n          <span class=\"na\">onCost<\/span><span class=\"p\">:<\/span> <span class=\"nx\">cost<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">query cost: <\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"nx\">cost<\/span><span class=\"p\">)<\/span>\r\n      <span class=\"p\">})<\/span>\r\n    <span class=\"p\">],<\/span>\r\n    <span class=\"p\">.....<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u5c06\u6700\u5927\u590d\u6742\u5ea6\u9650\u5236\u4e3a1000\u3002<\/p>\n<p>\u53e6\u5916\uff0c\u8fd8\u5b9e\u73b0\u4e86\u4e00\u4e2aonCost\u51fd\u6570\uff0c\u5f53\u8ba1\u7b97\u6bcf\u4e2a\u67e5\u8be2\u7684\u603b\u6210\u672c\u65f6\uff0c\u5c06\u8be5\u503c\u4f5c\u4e3a\u53c2\u6570\u8fdb\u884c\u8c03\u7528\u3002<\/p>\n<p>\u7531\u4e8e\u5148\u524d\u7684\u67e5\u8be2\u7684\u590d\u6742\u5ea6\u8d85\u8fc7\u4e861000\uff0c\u6839\u636e\u8fd9\u4e2a\u6761\u4ef6\u4e0b\u4e0d\u5141\u8bb8\u6267\u884c\u3002<\/p>\n<h2>\u6700\u540e<\/h2>\n<p>\u6211\u53d1\u73b0\u901a\u8fc7\u5728GraphQL\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u4e2d\u5206\u522b\u8fdb\u884c\u8bbe\u7f6e\uff0c\u53ef\u4ee5\u9632\u6b62\u53d1\u51fa\u8d1f\u8f7d\u8f83\u91cd\u7684\u67e5\u8be2\u3002<\/p>\n<p>\u6211\u8ba4\u4e3a\u4e0d\u4ec5\u4e0d\u9700\u8981\u5e9e\u5927\u7684\u6570\u636e\u9700\u6c42\uff0c\u800c\u4e14\u8fd8\u5bf9\u6076\u610f\u653b\u51fb\u6709\u4e00\u5b9a\u7684\u6548\u679c\uff0c\u6240\u4ee5\u6211\u5e0c\u671b\u5728\u5b9e\u52a1\u4e2d\u79ef\u6781\u91c7\u7528\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9996\u5148 \u5f53\u4eceGraphQL\u5ba2\u6237\u7aef\u8c03\u7528\u67e5\u8be2\u65f6\uff0c\u5982\u679c\u6ca1\u6709\u9650\u5236\u8981\u83b7\u53d6\u7684\u6570\u636e\u3002 \u6709\u53ef\u80fd\u6536\u5230\u610f\u6599\u4e4b\u5916\u7684\u5927\u91cf\u6570\u636e\u8bf7\u6c42\u6216\u53d7\u5230\u6076 [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-47754","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u7528GraphQL\u9650\u5236\u67e5\u8be2\u6240\u83b7\u53d6\u7684\u6570\u636e - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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