{"id":29927,"date":"2023-12-15T17:10:07","date_gmt":"2023-11-04T21:54:23","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/node-js-%e4%bd%bf%e7%94%a8typescript%e7%bc%96%e5%86%99express-mongodb-crud%e7%bc%96%e8%be%91\/"},"modified":"2025-08-12T16:37:54","modified_gmt":"2025-08-12T08:37:54","slug":"node-js-%e4%bd%bf%e7%94%a8typescript%e7%bc%96%e5%86%99express-mongodb-crud%e7%bc%96%e8%be%91","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/node-js-%e4%bd%bf%e7%94%a8typescript%e7%bc%96%e5%86%99express-mongodb-crud%e7%bc%96%e8%be%91\/","title":{"rendered":"[Node.js] \u4f7f\u7528TypeScript\u7f16\u5199Express &#8211; MongoDB CRUD\u7f16\u8f91"},"content":{"rendered":"<h1>\u9996\u5148\u8bf7\u67e5\u770b\u4e4b\u524d\u7684\u6587\u7ae0\uff0c\u8fd9\u7bc7\u6587\u7ae0\u662f\u7eed\u96c6\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">[Node.js] Express \u3092 TypeScript \u3067\u66f8\u304f &#8211; \u74b0\u5883\u6574\u5099\u307e\u3067<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">[Node.js] Express \u3092 TypeScript \u3067\u66f8\u304f &#8211; \u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u7de8<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">[Node.js] Express \u3092 TypeScript \u3067\u66f8\u304f &#8211; MongoDB \u63a5\u7d9a\u7de8<\/ul>\n<p>\u53e6\u5916\uff0c\u73af\u5883\u7684\u5047\u8bbe\u5982\u4e0b\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Windows 10<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Node.js 10.10.0<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Express 4.16.3<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">TypeScript 3.0.3<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">MongoDB 4.0.2 Community Server<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">MongoDB Node.js 3.1.4<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">Visual Studio Code 1.26.1<\/ul>\n<p>\u672c\u6b21\u5de5\u4f5c\u5c06\u5b9e\u73b0\u5bf9\u7528\u6237\u7684CRUD\u64cd\u4f5c\u3002<\/p>\n<h1>\u5907\u529e<\/p>\n<h2>\u5b9a\u4e49\u6587\u6863\u9996\u5148\uff0c\u6211\u4eec\u6765\u5b9a\u4e49\u6587\u6863\u7684\u7ed3\u6784\u3002\u8fd9\u662fTypeScript\u7684\u72ec\u7279\u4e4b\u5904\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">import<\/span> <span class=\"o\">*<\/span> <span class=\"k\">as<\/span> <span class=\"nx\">MongoDB<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">mongodb<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"k\">export<\/span> <span class=\"kr\">interface<\/span> <span class=\"nx\">UserDocument<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nl\">_id<\/span><span class=\"p\">:<\/span> <span class=\"nx\">MongoDB<\/span><span class=\"p\">.<\/span><span class=\"nx\">ObjectId<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"nl\">user_id<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"nl\">name<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"nl\">password<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">;<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<\/code><\/pre>\n<p>\u6211\u5b9a\u4e49\u4e86\u7528\u6237ID\u3001\u59d3\u540d\u548c\u5bc6\u7801\u3002\u4e3a\u4e86\u83b7\u53d6\u5185\u90e8ID\uff0c\u6211\u8fd8\u5b9a\u4e49\u4e86&#8221;_id&#8221;\u3002<\/p>\n<p>\u901a\u8fc7\u521b\u5efa\u8fd9\u4e2a\u6765\u83b7\u53d6 collection\uff0c\u7136\u540e\u5bf9\u4e8e\u5173\u4e8e document \u7684\u503c\u8fdb\u884c\u7c7b\u578b\u6807\u6ce8\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">collection<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">db<\/span><span class=\"p\">.<\/span><span class=\"nx\">collection<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">UserDocument<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">user<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n<span class=\"nx\">collection<\/span><span class=\"p\">.<\/span><span class=\"nx\">findOne<\/span><span class=\"p\">({<\/span> <span class=\"na\">user_id<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">xxx<\/span><span class=\"dl\">'<\/span> <span class=\"p\">},<\/span> <span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">,<\/span> <span class=\"nx\">doc<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"nx\">doc<\/span><span class=\"p\">.<\/span><span class=\"nx\">user_id<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"nx\">doc<\/span><span class=\"p\">.<\/span><span class=\"nx\">name<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"nx\">doc<\/span><span class=\"p\">.<\/span><span class=\"nx\">password<\/span><span class=\"p\">);<\/span>\r\n<span class=\"p\">});<\/span>\r\n<\/code><\/pre>\n<h2>\u5b9a\u4e49\u4e00\u4e2a\u7d22\u5f15\u3002\u4e3a\u4e86\u786e\u4fdduser_id\u7684\u552f\u4e00\u6027\uff0c\u6211\u521b\u5efa\u4e86\u4e00\u4e2a\u7d22\u5f15\u3002<br \/>\n\u6211\u5728MongoDB Compass Community (GUI)\u4e0a\u8fdb\u884c\u4e86\u8bbe\u7f6e\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d044e37434c4406bd60cb\/15-0.png\" alt=\"image.png\" \/><\/p>\n<h2>\u4f7f Express \u6765\u63a5\u6536 JSON \u6570\u636e\u3002<br \/>\n\u57fa\u672c\u4e0a\uff0c\u6211\u5e0c\u671b\u4f7f\u7528JSON\u6765\u8fdb\u884c\u6570\u503c\u4ea4\u6362\uff0c\u56e0\u6b64\u6211\u5c06\u5728Express\u4e2d\u5b9e\u73b0\u5b83\u3002<\/p>\n<p>\u4f7f\u7528body-parser\u3002<\/p>\n<pre class=\"post-pre\"><code>npm <span class=\"nb\">install<\/span> <span class=\"nt\">--save<\/span> body-parser\r\n<\/code><\/pre>\n<p>\u4fee\u6539server.ts\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">import<\/span> <span class=\"o\">*<\/span> <span class=\"k\">as<\/span> <span class=\"nx\">Express<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">express<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"o\">*<\/span> <span class=\"k\">as<\/span> <span class=\"nx\">BodyParser<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">body-parser<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">app<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">Express<\/span><span class=\"p\">();<\/span>\r\n\r\n<span class=\"nx\">app<\/span><span class=\"p\">.<\/span><span class=\"nx\">use<\/span><span class=\"p\">(<\/span><span class=\"nx\">BodyParser<\/span><span class=\"p\">.<\/span><span class=\"nx\">urlencoded<\/span><span class=\"p\">({<\/span> <span class=\"na\">extended<\/span><span class=\"p\">:<\/span> <span class=\"kc\">true<\/span> <span class=\"p\">}));<\/span>\r\n<span class=\"nx\">app<\/span><span class=\"p\">.<\/span><span class=\"nx\">use<\/span><span class=\"p\">(<\/span><span class=\"nx\">BodyParser<\/span><span class=\"p\">.<\/span><span class=\"nx\">json<\/span><span class=\"p\">());<\/span>\r\n\r\n<span class=\"cm\">\/** \u4ee5\u4e0b\u7701\u7565 *\/<\/span>\r\n<\/code><\/pre>\n<p>\u5982\u679c\u8bf7\u6c42\u7684URL\u65e0\u6548\uff0c\u6211\u4eec\u5c06\u6539\u4e3a\u8fd4\u56deJSON\u800c\u4e0d\u662f\u9ed8\u8ba4\u7684HTML\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"cm\">\/** \u7701\u7565 *\/<\/span>\r\n\r\n<span class=\"c1\">\/\/ \u5404\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u5b9a\u7fa9\u304c\u7d42\u308f\u3063\u305f\u3042\u3068\u306b\u66f8\u304f\u3002<\/span>\r\n<span class=\"nx\">app<\/span><span class=\"p\">.<\/span><span class=\"nx\">use<\/span><span class=\"p\">((<\/span><span class=\"nx\">req<\/span><span class=\"p\">,<\/span> <span class=\"nx\">res<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">status<\/span><span class=\"p\">(<\/span><span class=\"mi\">404<\/span><span class=\"p\">).<\/span><span class=\"nx\">json<\/span><span class=\"p\">({<\/span> <span class=\"na\">message<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">Not Found API.<\/span><span class=\"dl\">'<\/span> <span class=\"p\">});<\/span>\r\n<span class=\"p\">});<\/span>\r\n\r\n<span class=\"cm\">\/** \u7701\u7565 *\/<\/span>\r\n<\/code><\/pre>\n<h1>\u5b9e\u73b0CRUD\u529f\u80fd\u548cAPI\u529f\u80fd\u3002\u6211\u5011\u5c07\u5f9e\u9019\u88e1\u958b\u59cb\u5be6\u73fe\u6bcf\u500bAPI\u7684CRUD\u64cd\u4f5c\u3002<\/p>\n<h2>\u53d1\u8d77\u8bf7\u6c42 \u521b\u5efa\u65b0\u7528\u6237<br \/>\n\u3053\u306eAPI\u306f\u4ee5\u4e0b\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3092JSON\u5f62\u5f0f\u3067\u53d7\u3051\u53d6\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code>{\r\n    user_id, \/\/ REQUIRED, Allow Characters [a-zA-Z0-9_]\r\n    name, \/\/ REQUIRED\r\n    password \/\/ REQUIRED\r\n}\r\n<\/code><\/pre>\n<p>user_id \u306f URL \u3067\u6307\u5b9a\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u305f\u3044\u306e\u3067\u4f7f\u3048\u308b\u6587\u5b57\u7a2e\u3092\u7d5e\u308a\u307e\u3059\u3002<\/p>\n<p>API\u306e\u623b\u308a\u5024\u3068\u3057\u3066\u3001\u767b\u9332\u3055\u308c\u305f\u60c5\u5831\u3092\u8fd4\u3057\u307e\u3059\u3002\u305f\u3060\u3057\u30d1\u30b9\u30ef\u30fc\u30c9\u306f\u8fd4\u3057\u307e\u305b\u3093\u3002<\/p>\n<pre class=\"post-pre\"><code>{\r\n    user_id,\r\n    name\r\n}\r\n<\/code><\/pre>\n<p>document \u306e\u8ffd\u52a0\u306f collection.insertOne() \u3092\u4f7f\u3048\u3070\u3067\u304d\u305d\u3046\u3067\u3059\u3002<\/p>\n<p>\u4ee5\u4e0b\u662f\u5b9e\u65bd\u7684\u5185\u5bb9\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">import<\/span> <span class=\"o\">*<\/span> <span class=\"k\">as<\/span> <span class=\"nx\">Express<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">express<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nx\">errorJSON<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">..\/..\/common\/errorJSON<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nx\">mongodbClient<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">..\/..\/common\/mongodbClient<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">UserDocument<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">..\/..\/documents\/User<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">router<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">Express<\/span><span class=\"p\">.<\/span><span class=\"nx\">Router<\/span><span class=\"p\">();<\/span>\r\n<span class=\"c1\">\/\/ \u30e6\u30fc\u30b6\u306e\u65b0\u898f\u4f5c\u6210<\/span>\r\n<span class=\"nx\">router<\/span><span class=\"p\">.<\/span><span class=\"nx\">post<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">\/new<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"p\">(<\/span><span class=\"nx\">req<\/span><span class=\"p\">,<\/span> <span class=\"nx\">res<\/span><span class=\"p\">,<\/span> <span class=\"nx\">next<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"c1\">\/\/ \u30d1\u30e9\u30e1\u30fc\u30bf\u53d6\u5f97<\/span>\r\n    <span class=\"kd\">const<\/span> <span class=\"nx\">user_id<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">req<\/span><span class=\"p\">.<\/span><span class=\"nx\">body<\/span><span class=\"p\">.<\/span><span class=\"nx\">user_id<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"kd\">const<\/span> <span class=\"nx\">name<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">req<\/span><span class=\"p\">.<\/span><span class=\"nx\">body<\/span><span class=\"p\">.<\/span><span class=\"nx\">name<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"kd\">const<\/span> <span class=\"nx\">password<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">req<\/span><span class=\"p\">.<\/span><span class=\"nx\">body<\/span><span class=\"p\">.<\/span><span class=\"nx\">password<\/span><span class=\"p\">;<\/span>\r\n\r\n    <span class=\"c1\">\/\/ \u5fc5\u9808\u9805\u76ee\u304c\u5165\u529b\u6e08\u307f\u304b\u30c1\u30a7\u30c3\u30af<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nx\">user_id<\/span> <span class=\"o\">===<\/span> <span class=\"kc\">undefined<\/span> <span class=\"o\">||<\/span> <span class=\"nx\">name<\/span> <span class=\"o\">===<\/span> <span class=\"kc\">undefined<\/span> <span class=\"o\">||<\/span> <span class=\"nx\">password<\/span> <span class=\"o\">===<\/span> <span class=\"kc\">undefined<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">status<\/span><span class=\"p\">(<\/span><span class=\"mi\">400<\/span><span class=\"p\">).<\/span><span class=\"nx\">json<\/span><span class=\"p\">(<\/span><span class=\"nx\">errorJSON<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">Parameter<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">Require Parameter.<\/span><span class=\"dl\">'<\/span><span class=\"p\">));<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"nx\">next<\/span><span class=\"p\">();<\/span>\r\n    <span class=\"p\">}<\/span>\r\n\r\n    <span class=\"c1\">\/\/ user_id \u306e\u66f8\u5f0f\u30c1\u30a7\u30c3\u30af<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nx\">user_id<\/span><span class=\"p\">.<\/span><span class=\"nx\">match<\/span><span class=\"p\">(<\/span><span class=\"sr\">\/^<\/span><span class=\"se\">[<\/span><span class=\"sr\">a-zA-Z0-9_<\/span><span class=\"se\">]<\/span><span class=\"sr\">+$\/<\/span><span class=\"p\">)<\/span> <span class=\"o\">==<\/span> <span class=\"kc\">null<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">status<\/span><span class=\"p\">(<\/span><span class=\"mi\">400<\/span><span class=\"p\">).<\/span><span class=\"nx\">json<\/span><span class=\"p\">(<\/span><span class=\"nx\">errorJSON<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">Parameter<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">Invalid Parameter.<\/span><span class=\"dl\">'<\/span><span class=\"p\">));<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"nx\">next<\/span><span class=\"p\">();<\/span>\r\n    <span class=\"p\">}<\/span>\r\n\r\n    <span class=\"nx\">mongodbClient<\/span><span class=\"p\">((<\/span><span class=\"nx\">err<\/span><span class=\"p\">,<\/span> <span class=\"nx\">client<\/span><span class=\"p\">,<\/span> <span class=\"nx\">db<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"nx\">client<\/span><span class=\"p\">.<\/span><span class=\"nx\">close<\/span><span class=\"p\">();<\/span>\r\n            <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">status<\/span><span class=\"p\">(<\/span><span class=\"mi\">500<\/span><span class=\"p\">).<\/span><span class=\"nx\">json<\/span><span class=\"p\">(<\/span><span class=\"nx\">errorJSON<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">MongoDB<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"nx\">err<\/span><span class=\"p\">.<\/span><span class=\"nx\">message<\/span><span class=\"p\">));<\/span>\r\n            <span class=\"k\">return<\/span> <span class=\"nx\">next<\/span><span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">);<\/span>\r\n        <span class=\"p\">}<\/span>\r\n\r\n        <span class=\"kd\">const<\/span> <span class=\"nx\">collection<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">db<\/span><span class=\"p\">.<\/span><span class=\"nx\">collection<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">UserDocument<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">user<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n        <span class=\"nx\">collection<\/span><span class=\"p\">.<\/span><span class=\"nx\">insertOne<\/span><span class=\"p\">(<\/span>\r\n            <span class=\"p\">{<\/span>\r\n                <span class=\"na\">user_id<\/span><span class=\"p\">:<\/span> <span class=\"nx\">user_id<\/span><span class=\"p\">,<\/span>\r\n                <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"nx\">name<\/span><span class=\"p\">,<\/span>\r\n                <span class=\"na\">password<\/span><span class=\"p\">:<\/span> <span class=\"nx\">password<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"p\">},<\/span>\r\n            <span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">,<\/span> <span class=\"nx\">result<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n                    <span class=\"nx\">client<\/span><span class=\"p\">.<\/span><span class=\"nx\">close<\/span><span class=\"p\">();<\/span>\r\n                    <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">status<\/span><span class=\"p\">(<\/span><span class=\"mi\">500<\/span><span class=\"p\">).<\/span><span class=\"nx\">json<\/span><span class=\"p\">(<\/span><span class=\"nx\">errorJSON<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">MongoDB<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"nx\">err<\/span><span class=\"p\">.<\/span><span class=\"nx\">message<\/span><span class=\"p\">));<\/span>\r\n                    <span class=\"k\">return<\/span> <span class=\"nx\">next<\/span><span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">);<\/span>\r\n                <span class=\"p\">}<\/span>\r\n\r\n                <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">status<\/span><span class=\"p\">(<\/span><span class=\"mi\">200<\/span><span class=\"p\">).<\/span><span class=\"nx\">json<\/span><span class=\"p\">(<\/span><span class=\"nx\">filterUserDocument<\/span><span class=\"p\">(<\/span><span class=\"nx\">result<\/span><span class=\"p\">.<\/span><span class=\"nx\">ops<\/span><span class=\"p\">[<\/span><span class=\"mi\">0<\/span><span class=\"p\">]));<\/span>\r\n                <span class=\"nx\">client<\/span><span class=\"p\">.<\/span><span class=\"nx\">close<\/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>errorJSON\u662f\u4e00\u4e2a\u7528\u4e8e\u83b7\u53d6\u9519\u8bef\u8f93\u51fa\u7684JSON\u7684\u51fd\u6570\u3002<br \/>\nfilterUserDocument\u662f\u4e00\u4e2a\u5c06\u4f20\u5165\u7684document\u8fdb\u884c\u8fc7\u6ee4\uff0c\u6d88\u9664\u4e0d\u5fc5\u8981\u9879\u76ee\u5e76\u8fd4\u56de\u7684\u51fd\u6570\u3002\u5b9e\u73b0\u5982\u4e0b\u6240\u793a\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">function<\/span> <span class=\"nx\">filterUserDocument<\/span><span class=\"p\">(<\/span><span class=\"nx\">doc<\/span><span class=\"p\">:<\/span> <span class=\"nx\">object<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"kd\">const<\/span> <span class=\"nx\">denied<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[<\/span><span class=\"dl\">'<\/span><span class=\"s1\">_id<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">password<\/span><span class=\"dl\">'<\/span><span class=\"p\">];<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"nb\">Object<\/span><span class=\"p\">.<\/span><span class=\"nx\">keys<\/span><span class=\"p\">(<\/span><span class=\"nx\">doc<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"p\">.<\/span><span class=\"nx\">filter<\/span><span class=\"p\">(<\/span><span class=\"nx\">key<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">denied<\/span><span class=\"p\">.<\/span><span class=\"nx\">indexOf<\/span><span class=\"p\">(<\/span><span class=\"nx\">key<\/span><span class=\"p\">)<\/span> <span class=\"o\">===<\/span> <span class=\"o\">-<\/span><span class=\"mi\">1<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"p\">.<\/span><span class=\"nx\">reduce<\/span><span class=\"p\">((<\/span><span class=\"nx\">obj<\/span><span class=\"p\">,<\/span> <span class=\"nx\">key<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"nx\">obj<\/span><span class=\"p\">[<\/span><span class=\"nx\">key<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">doc<\/span><span class=\"p\">[<\/span><span class=\"nx\">key<\/span><span class=\"p\">];<\/span>\r\n            <span class=\"k\">return<\/span> <span class=\"nx\">obj<\/span><span class=\"p\">;<\/span>\r\n        <span class=\"p\">},<\/span> <span class=\"p\">{});<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5bc6\u7801\u88ab\u4ee5\u7eaf\u6587\u672c\u5f62\u5f0f\u4fdd\u5b58\uff0c\u4f46\u5b9e\u9645\u4e0a\u5e94\u8be5\u5bf9\u5176\u8fdb\u884c\u67d0\u79cd\u5f62\u5f0f\u7684\u52a0\u5bc6\u3002\u7531\u4e8e\u8fd9\u662f\u4e00\u4e2a\u4ec5\u9650\u4e8e\u672c\u5730\u4f7f\u7528\u7684\u7ec3\u4e60\uff0c\u6240\u4ee5\u6211\u4eec\u4e0d\u505a\u8fd9\u6837\u7684\u5904\u7406\u3002<\/p>\n<h2>\u83b7\u53d6\u7528\u6237\/:user (\u8bfb\u53d6)<br \/>\n\u4e0b\u4e00\u4e2a\u662f\u7528\u4e8e\u83b7\u53d6\u7528\u6237\u4fe1\u606f\u7684API\u3002\u53ea\u9700\u901a\u8fc7url\u8fdb\u884c\u6307\u5b9a\uff0c\u65e0\u9700\u53c2\u6570\u3002<\/p>\n<p>\u5982\u679c\u6709\u7528\u6237\u5b58\u5728\uff0c\u8be5API\u5c06\u8fd4\u56de\u4ee5\u4e0b\u7684JSON\u6570\u636e\u3002<\/p>\n<pre class=\"post-pre\"><code>{\r\n    user_id,\r\n    name\r\n}\r\n<\/code><\/pre>\n<p>\u5982\u679c\u4e0d\u5b58\u5728\uff0c\u5c31\u8fd4\u56de404\u9519\u8bef\u3002<\/p>\n<p>\u5982\u679c\u8981\u4eceMongoDB\u4e2d\u83b7\u53d6\u7279\u5b9a\u7684\u6587\u6863\uff0c\u53ef\u4ee5\u4f7f\u7528collection.findOne()\u3002<\/p>\n<p>\u8fd9\u662f\u4ee5\u4e0b\u7684\u5b9e\u65bd\u65b9\u6848\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nx\">router<\/span><span class=\"p\">.<\/span><span class=\"kd\">get<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">\/:user<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"p\">(<\/span><span class=\"nx\">req<\/span><span class=\"p\">,<\/span> <span class=\"nx\">res<\/span><span class=\"p\">,<\/span> <span class=\"nx\">next<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"kd\">const<\/span> <span class=\"nx\">user_id<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">req<\/span><span class=\"p\">.<\/span><span class=\"nx\">params<\/span><span class=\"p\">.<\/span><span class=\"nx\">user<\/span><span class=\"p\">;<\/span>\r\n\r\n    <span class=\"nx\">mongodbClient<\/span><span class=\"p\">((<\/span><span class=\"nx\">err<\/span><span class=\"p\">,<\/span> <span class=\"nx\">client<\/span><span class=\"p\">,<\/span> <span class=\"nx\">db<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"nx\">client<\/span><span class=\"p\">.<\/span><span class=\"nx\">close<\/span><span class=\"p\">();<\/span>\r\n            <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">status<\/span><span class=\"p\">(<\/span><span class=\"mi\">500<\/span><span class=\"p\">).<\/span><span class=\"nx\">json<\/span><span class=\"p\">(<\/span><span class=\"nx\">errorJSON<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">MongoDB<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"nx\">err<\/span><span class=\"p\">.<\/span><span class=\"nx\">message<\/span><span class=\"p\">));<\/span>\r\n            <span class=\"k\">return<\/span> <span class=\"nx\">next<\/span><span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">);<\/span>\r\n        <span class=\"p\">}<\/span>\r\n\r\n        <span class=\"kd\">const<\/span> <span class=\"nx\">collection<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">db<\/span><span class=\"p\">.<\/span><span class=\"nx\">collection<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">UserDocument<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">user<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n        <span class=\"nx\">collection<\/span><span class=\"p\">.<\/span><span class=\"nx\">findOne<\/span><span class=\"p\">({<\/span> <span class=\"na\">user_id<\/span><span class=\"p\">:<\/span> <span class=\"nx\">user_id<\/span> <span class=\"p\">},<\/span> <span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">,<\/span> <span class=\"nx\">result<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"nx\">client<\/span><span class=\"p\">.<\/span><span class=\"nx\">close<\/span><span class=\"p\">();<\/span>\r\n                <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">status<\/span><span class=\"p\">(<\/span><span class=\"mi\">500<\/span><span class=\"p\">).<\/span><span class=\"nx\">json<\/span><span class=\"p\">(<\/span><span class=\"nx\">errorJSON<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">MongoDB<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"nx\">err<\/span><span class=\"p\">.<\/span><span class=\"nx\">message<\/span><span class=\"p\">));<\/span>\r\n                <span class=\"k\">return<\/span> <span class=\"nx\">next<\/span><span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">);<\/span>\r\n            <span class=\"p\">}<\/span>\r\n\r\n            <span class=\"nx\">client<\/span><span class=\"p\">.<\/span><span class=\"nx\">close<\/span><span class=\"p\">();<\/span>\r\n\r\n            <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nx\">result<\/span> <span class=\"o\">==<\/span> <span class=\"kc\">null<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">status<\/span><span class=\"p\">(<\/span><span class=\"mi\">404<\/span><span class=\"p\">).<\/span><span class=\"nx\">json<\/span><span class=\"p\">({<\/span> <span class=\"na\">message<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">Not Found.<\/span><span class=\"dl\">'<\/span> <span class=\"p\">});<\/span>\r\n            <span class=\"p\">}<\/span> <span class=\"k\">else<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">json<\/span><span class=\"p\">(<\/span><span class=\"nx\">filterUserDocument<\/span><span class=\"p\">(<\/span><span class=\"nx\">result<\/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<h2>PUT \/user\/:user (\u66f4\u65b0)<br \/>\n\u63a5\u4e0b\u6765\u662f\u7528\u6237\u66f4\u65b0\u7684API\u3002<\/p>\n<p>\u8fd9\u4e2aAPI\u63a5\u6536\u4ee5\u4e0b\u53c2\u6570\u3002<\/p>\n<pre class=\"post-pre\"><code>{\r\n    user_id,\r\n    name,\r\n    password\r\n}\r\n<\/code><\/pre>\n<p>\u6240\u6709\u7684\u9879\u76ee\u90fd\u5c06\u53d8\u6210\u53ef\u9009\u9879\u3002\u4ec5\u66f4\u65b0\u6307\u5b9a\u7684\u9879\u76ee\u3002<\/p>\n<p>\u8fd4\u56de\u7684\u503c\u662f\u66f4\u65b0\u540e\u7684\u7528\u6237\u4fe1\u606f\u3002<\/p>\n<p>\u8981\u66f4\u65b0\u6587\u4ef6\uff0c\u4f7f\u7528collection.findOneAndUpdate()\u65b9\u6cd5\u3002<br \/>\n\u5728\u8bbe\u7f6e\u503c\u65f6\uff0c\u9700\u8981\u5728\u7b2c\u4e8c\u4e2a\u53c2\u6570\u4e2d\u63d0\u4f9b\u4e00\u4e2a\u5e26\u6709$set\u7684\u5bf9\u8c61\uff0c\u4f8b\u5982{ $set: { hoge: &#8216;xxx&#8217; } }\u3002<\/p>\n<p>\u9700\u8981\u91cd\u65b0\u68c0\u7d22\u4ee5\u83b7\u53d6\u66f4\u65b0\u540e\u7684\u503c\u3002<\/p>\n<p>\u8fd9\u662f\u6211\u4eec\u7684\u5b9e\u65bd\u65b9\u6848\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nx\">router<\/span><span class=\"p\">.<\/span><span class=\"nx\">put<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">\/:user<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"p\">(<\/span><span class=\"nx\">req<\/span><span class=\"p\">,<\/span> <span class=\"nx\">res<\/span><span class=\"p\">,<\/span> <span class=\"nx\">next<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"c1\">\/\/ URL\u304b\u3089\u5bfe\u8c61\u306euser_id\u3092\u53d6\u5f97<\/span>\r\n    <span class=\"kd\">const<\/span> <span class=\"nx\">user_id<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">req<\/span><span class=\"p\">.<\/span><span class=\"nx\">params<\/span><span class=\"p\">.<\/span><span class=\"nx\">user<\/span><span class=\"p\">;<\/span>\r\n\r\n    <span class=\"c1\">\/\/ JSON\u3088\u308a\u66f4\u65b0\u7528\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u53d6\u5f97<\/span>\r\n    <span class=\"kd\">const<\/span> <span class=\"nx\">new_user_id<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">req<\/span><span class=\"p\">.<\/span><span class=\"nx\">body<\/span><span class=\"p\">.<\/span><span class=\"nx\">user_id<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"kd\">const<\/span> <span class=\"nx\">name<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">req<\/span><span class=\"p\">.<\/span><span class=\"nx\">body<\/span><span class=\"p\">.<\/span><span class=\"nx\">name<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"kd\">const<\/span> <span class=\"nx\">password<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">req<\/span><span class=\"p\">.<\/span><span class=\"nx\">body<\/span><span class=\"p\">.<\/span><span class=\"nx\">password<\/span><span class=\"p\">;<\/span>\r\n\r\n    <span class=\"c1\">\/\/ \u66f4\u65b0\u7528\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u4f5c\u6210<\/span>\r\n    <span class=\"kd\">const<\/span> <span class=\"nx\">updateFields<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{};<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nx\">new_user_id<\/span> <span class=\"o\">!==<\/span> <span class=\"kc\">undefined<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">updateFields<\/span><span class=\"p\">[<\/span><span class=\"dl\">'<\/span><span class=\"s1\">user_id<\/span><span class=\"dl\">'<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">new_user_id<\/span><span class=\"p\">;<\/span> <span class=\"p\">}<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nx\">name<\/span> <span class=\"o\">!==<\/span> <span class=\"kc\">undefined<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">updateFields<\/span><span class=\"p\">[<\/span><span class=\"dl\">'<\/span><span class=\"s1\">name<\/span><span class=\"dl\">'<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">name<\/span><span class=\"p\">;<\/span> <span class=\"p\">}<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nx\">password<\/span> <span class=\"o\">!==<\/span> <span class=\"kc\">undefined<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">updateFields<\/span><span class=\"p\">[<\/span><span class=\"dl\">'<\/span><span class=\"s1\">password<\/span><span class=\"dl\">'<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">password<\/span><span class=\"p\">;<\/span> <span class=\"p\">}<\/span>\r\n    <span class=\"kd\">const<\/span> <span class=\"nx\">update<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span> <span class=\"na\">$set<\/span><span class=\"p\">:<\/span> <span class=\"nx\">updateFields<\/span> <span class=\"p\">};<\/span>\r\n\r\n    <span class=\"nx\">mongodbClient<\/span><span class=\"p\">((<\/span><span class=\"nx\">err<\/span><span class=\"p\">,<\/span> <span class=\"nx\">client<\/span><span class=\"p\">,<\/span> <span class=\"nx\">db<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"nx\">client<\/span><span class=\"p\">.<\/span><span class=\"nx\">close<\/span><span class=\"p\">();<\/span>\r\n            <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">status<\/span><span class=\"p\">(<\/span><span class=\"mi\">500<\/span><span class=\"p\">).<\/span><span class=\"nx\">json<\/span><span class=\"p\">(<\/span><span class=\"nx\">errorJSON<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">MongoDB<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"nx\">err<\/span><span class=\"p\">.<\/span><span class=\"nx\">message<\/span><span class=\"p\">));<\/span>\r\n            <span class=\"k\">return<\/span> <span class=\"nx\">next<\/span><span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">);<\/span>\r\n        <span class=\"p\">}<\/span>\r\n\r\n        <span class=\"kd\">const<\/span> <span class=\"nx\">collection<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">db<\/span><span class=\"p\">.<\/span><span class=\"nx\">collection<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">UserDocument<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">user<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n        <span class=\"nx\">collection<\/span><span class=\"p\">.<\/span><span class=\"nx\">findOneAndUpdate<\/span><span class=\"p\">({<\/span> <span class=\"na\">user_id<\/span><span class=\"p\">:<\/span> <span class=\"nx\">user_id<\/span> <span class=\"p\">},<\/span> <span class=\"nx\">update<\/span><span class=\"p\">,<\/span> <span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">,<\/span> <span class=\"nx\">result<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"nx\">client<\/span><span class=\"p\">.<\/span><span class=\"nx\">close<\/span><span class=\"p\">();<\/span>\r\n                <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">status<\/span><span class=\"p\">(<\/span><span class=\"mi\">500<\/span><span class=\"p\">).<\/span><span class=\"nx\">json<\/span><span class=\"p\">(<\/span><span class=\"nx\">errorJSON<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">MongoDB<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"nx\">err<\/span><span class=\"p\">.<\/span><span class=\"nx\">message<\/span><span class=\"p\">));<\/span>\r\n                <span class=\"k\">return<\/span> <span class=\"nx\">next<\/span><span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">);<\/span>\r\n            <span class=\"p\">}<\/span>\r\n\r\n            <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nx\">result<\/span><span class=\"p\">.<\/span><span class=\"nx\">value<\/span> <span class=\"o\">===<\/span> <span class=\"kc\">null<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"c1\">\/\/ \u5bfe\u8c61\u30ec\u30b3\u30fc\u30c9\u304c\u5b58\u5728\u3057\u306a\u304b\u3063\u305f\u5834\u5408 result.value \u306b null \u304c\u8fd4\u308b\u3002<\/span>\r\n                <span class=\"nx\">client<\/span><span class=\"p\">.<\/span><span class=\"nx\">close<\/span><span class=\"p\">();<\/span>\r\n                <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">status<\/span><span class=\"p\">(<\/span><span class=\"mi\">404<\/span><span class=\"p\">).<\/span><span class=\"nx\">json<\/span><span class=\"p\">({<\/span> <span class=\"na\">message<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">Not Found.<\/span><span class=\"dl\">'<\/span> <span class=\"p\">});<\/span>\r\n                <span class=\"k\">return<\/span><span class=\"p\">;<\/span>\r\n            <span class=\"p\">}<\/span>\r\n\r\n            <span class=\"c1\">\/\/ \u66f4\u65b0\u5f8c\u306edocument\u3092\u53d6\u5f97\u3059\u308b\u305f\u3081\u306b\u518d\u691c\u7d22\u3059\u308b\u3002<\/span>\r\n            <span class=\"nx\">collection<\/span><span class=\"p\">.<\/span><span class=\"nx\">findOne<\/span><span class=\"p\">({<\/span> <span class=\"na\">_id<\/span><span class=\"p\">:<\/span> <span class=\"nx\">result<\/span><span class=\"p\">.<\/span><span class=\"nx\">value<\/span><span class=\"p\">.<\/span><span class=\"nx\">_id<\/span> <span class=\"p\">},<\/span> <span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">,<\/span> <span class=\"nx\">result<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n                    <span class=\"nx\">client<\/span><span class=\"p\">.<\/span><span class=\"nx\">close<\/span><span class=\"p\">();<\/span>\r\n                    <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">status<\/span><span class=\"p\">(<\/span><span class=\"mi\">500<\/span><span class=\"p\">).<\/span><span class=\"nx\">json<\/span><span class=\"p\">(<\/span><span class=\"nx\">errorJSON<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">MongoDB<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"nx\">err<\/span><span class=\"p\">.<\/span><span class=\"nx\">message<\/span><span class=\"p\">));<\/span>\r\n                    <span class=\"k\">return<\/span> <span class=\"nx\">next<\/span><span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">);<\/span>\r\n                <span class=\"p\">}<\/span>\r\n\r\n                <span class=\"nx\">client<\/span><span class=\"p\">.<\/span><span class=\"nx\">close<\/span><span class=\"p\">();<\/span>\r\n                <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">json<\/span><span class=\"p\">(<\/span><span class=\"nx\">filterUserDocument<\/span><span class=\"p\">(<\/span><span class=\"nx\">result<\/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>\u8fd9\u4e2a API \u76ee\u524d\u53ef\u4ee5\u88ab\u4efb\u4f55\u4eba\u8c03\u7528\uff0c\u4f46\u7a0d\u540e\u5c06\u6dfb\u52a0\u767b\u5f55\u8ba4\u8bc1\uff0c\u53ea\u5141\u8bb8\u81ea\u5df1\u66f4\u65b0\u3002<\/p>\n<h2>\u5220\u9664\u7528\u6237\/:user (\u5220\u9664)<br \/>\n\u6700\u540e\u662f\u5220\u9664API\uff0c\u6ca1\u6709\u4efb\u4f55\u53c2\u6570\uff0c\u53ea\u9700\u4f20\u9012URL\u3002<\/p>\n<p>\u5982\u679c\u80fd\u591f\u6210\u529f\u5220\u9664\uff0c\u5219\u8fd4\u56de200\uff0c\u5982\u679c\u6307\u5b9a\u7684\u7528\u6237\u4e0d\u5b58\u5728\uff0c\u5219\u8fd4\u56de404\u3002<\/p>\n<p>\u8981\u5220\u9664 document\uff0c\u53ef\u4ee5\u4f7f\u7528 collection.findOneAndDelete() \u65b9\u6cd5\u3002<\/p>\n<p>\u552f\u4e00\u7684\u4e0d\u540c\u662f\u9664\u975e\u6709\u66f4\u65b0\u53c2\u6570\uff0c\u5426\u5219\u51e0\u4e4e\u548c\u66f4\u65b0\u65f6\u4e00\u6837\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nx\">router<\/span><span class=\"p\">.<\/span><span class=\"k\">delete<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">\/:user<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"p\">(<\/span><span class=\"nx\">req<\/span><span class=\"p\">,<\/span> <span class=\"nx\">res<\/span><span class=\"p\">,<\/span> <span class=\"nx\">next<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"kd\">const<\/span> <span class=\"nx\">user_id<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">req<\/span><span class=\"p\">.<\/span><span class=\"nx\">params<\/span><span class=\"p\">.<\/span><span class=\"nx\">user<\/span><span class=\"p\">;<\/span>\r\n\r\n    <span class=\"nx\">mongodbClient<\/span><span class=\"p\">((<\/span><span class=\"nx\">err<\/span><span class=\"p\">,<\/span> <span class=\"nx\">client<\/span><span class=\"p\">,<\/span> <span class=\"nx\">db<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"nx\">client<\/span><span class=\"p\">.<\/span><span class=\"nx\">close<\/span><span class=\"p\">();<\/span>\r\n            <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">status<\/span><span class=\"p\">(<\/span><span class=\"mi\">500<\/span><span class=\"p\">).<\/span><span class=\"nx\">json<\/span><span class=\"p\">(<\/span><span class=\"nx\">errorJSON<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">MongoDB<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"nx\">err<\/span><span class=\"p\">.<\/span><span class=\"nx\">message<\/span><span class=\"p\">));<\/span>\r\n            <span class=\"k\">return<\/span> <span class=\"nx\">next<\/span><span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">);<\/span>\r\n        <span class=\"p\">}<\/span>\r\n\r\n        <span class=\"kd\">const<\/span> <span class=\"nx\">collection<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">db<\/span><span class=\"p\">.<\/span><span class=\"nx\">collection<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">UserDocument<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">user<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n        <span class=\"nx\">collection<\/span><span class=\"p\">.<\/span><span class=\"nx\">findOneAndDelete<\/span><span class=\"p\">({<\/span> <span class=\"na\">user_id<\/span><span class=\"p\">:<\/span> <span class=\"nx\">user_id<\/span> <span class=\"p\">},<\/span> <span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">,<\/span> <span class=\"nx\">result<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"nx\">client<\/span><span class=\"p\">.<\/span><span class=\"nx\">close<\/span><span class=\"p\">();<\/span>\r\n                <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">status<\/span><span class=\"p\">(<\/span><span class=\"mi\">500<\/span><span class=\"p\">).<\/span><span class=\"nx\">json<\/span><span class=\"p\">(<\/span><span class=\"nx\">errorJSON<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">MongoDB<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"nx\">err<\/span><span class=\"p\">.<\/span><span class=\"nx\">message<\/span><span class=\"p\">));<\/span>\r\n                <span class=\"k\">return<\/span> <span class=\"nx\">next<\/span><span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">);<\/span>\r\n            <span class=\"p\">}<\/span>\r\n\r\n            <span class=\"nx\">client<\/span><span class=\"p\">.<\/span><span class=\"nx\">close<\/span><span class=\"p\">();<\/span>\r\n            <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nx\">result<\/span><span class=\"p\">.<\/span><span class=\"nx\">value<\/span> <span class=\"o\">==<\/span> <span class=\"kc\">null<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">status<\/span><span class=\"p\">(<\/span><span class=\"mi\">404<\/span><span class=\"p\">).<\/span><span class=\"nx\">json<\/span><span class=\"p\">({<\/span> <span class=\"na\">message<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">Not Found.<\/span><span class=\"dl\">'<\/span> <span class=\"p\">});<\/span>\r\n            <span class=\"p\">}<\/span> <span class=\"k\">else<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"nx\">res<\/span><span class=\"p\">.<\/span><span class=\"nx\">json<\/span><span class=\"p\">({<\/span> <span class=\"na\">message<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">Deleted.<\/span><span class=\"dl\">'<\/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>\u8fd9\u4e2aAPI\u76ee\u524d\u4efb\u4f55\u4eba\u90fd\u53ef\u4ee5\u8c03\u7528\uff0c\u4f46\u7a0d\u540e\u6211\u4f1a\u52a0\u4e0a\u767b\u5f55\u8ba4\u8bc1\uff0c\u53ea\u5141\u8bb8\u81ea\u5df1\u5220\u9664\u3002<\/p>\n<p>\u6211\u6253\u7b97\u5b9e\u73b0\u7528\u6237\u767b\u5f55\u8ba4\u8bc1\u8fc7\u7a0b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9996\u5148\u8bf7\u67e5\u770b\u4e4b\u524d\u7684\u6587\u7ae0\uff0c\u8fd9\u7bc7\u6587\u7ae0\u662f\u7eed\u96c6\u3002 [Node.js] Express \u3092 TypeScript \u3067\u66f8\u304f  [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-29927","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"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>[Node.js] \u4f7f\u7528TypeScript\u7f16\u5199Express - MongoDB CRUD\u7f16\u8f91 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u5173\u4e8e[Node.js] \u4f7f\u7528TypeScript\u7f16\u5199Express - MongoDB CRUD\u7f16\u8f91\u7684\u6280\u672f\u6587\u7ae0\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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