{"id":47940,"date":"2023-05-11T20:28:16","date_gmt":"2023-07-07T16:00:59","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8gogqlgen%e6%9e%84%e5%bb%bagraphql%e6%9c%8d%e5%8a%a1%e5%99%a8%ef%bc%88%e4%bd%bf%e7%94%a8gorm%e8%bf%9b%e8%a1%8c%e6%95%b0%e6%8d%ae%e5%ba%93%e8%bf%9e%e6%8e%a5%ef%bc%89%e3%80%82\/"},"modified":"2024-04-30T03:40:51","modified_gmt":"2024-04-29T19:40:51","slug":"%e4%bd%bf%e7%94%a8gogqlgen%e6%9e%84%e5%bb%bagraphql%e6%9c%8d%e5%8a%a1%e5%99%a8%ef%bc%88%e4%bd%bf%e7%94%a8gorm%e8%bf%9b%e8%a1%8c%e6%95%b0%e6%8d%ae%e5%ba%93%e8%bf%9e%e6%8e%a5%ef%bc%89%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8gogqlgen%e6%9e%84%e5%bb%bagraphql%e6%9c%8d%e5%8a%a1%e5%99%a8%ef%bc%88%e4%bd%bf%e7%94%a8gorm%e8%bf%9b%e8%a1%8c%e6%95%b0%e6%8d%ae%e5%ba%93%e8%bf%9e%e6%8e%a5%ef%bc%89%e3%80%82\/","title":{"rendered":"\u4f7f\u7528go+gqlgen\u6784\u5efaGraphQL\u670d\u52a1\u5668\uff08\u4f7f\u7528GORM\u8fdb\u884c\u6570\u636e\u5e93\u8fde\u63a5\uff09"},"content":{"rendered":"<h1>\u9898\u76ee<\/h1>\n<p>\u5982\u9898\u6240\u793a\u3002\u5728\u4e0eGraphQL\u76f8\u5173\u7684\u4e0a\u4e00\u6b21\u5b9e\u8df5\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u4e86&#8221;nuxtjs\/apollo&#8221;\u4f5c\u4e3a\u524d\u7aef\uff0c&#8221;go+gqlgen&#8221;\u4f5c\u4e3a\u540e\u7aef\u6765\u521b\u5efaGraphQL\u670d\u52a1\u3002<br \/>\n\u5728\u90a3\u6b21\u5b9e\u8df5\u4e2d\uff0c\u540e\u7aef\u53ea\u662f\u7b80\u5355\u5730\u8fd4\u56de\u4e86\u56fa\u5b9a\u7684JSON\u6570\u636e\uff0c\u8fd9\u53ea\u662f\u4e3a\u4e86\u52c9\u5f3a\u8ba9\u670d\u52a1\u8fd0\u884c\uff0c\u5f53\u7136\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u6211\u4eec\u4e0d\u53ef\u80fd\u53ea\u8fd4\u56de\u56fa\u5b9a\u7684JSON\u6570\u636e\u3002<br \/>\n\u56e0\u6b64\uff0c\u8fd9\u4e00\u6b21\u6211\u4eec\u5c06\u8fdb\u884c\u6301\u4e45\u5316\u5b9e\u73b0\u3002<\/p>\n<h1>\u76f8\u5173\u6587\u7ae0\u7d22\u5f15<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u7b2c12\u56de\u300cGraphQL\u306b\u304a\u3051\u308bRelay\u30b9\u30bf\u30a4\u30eb\u306b\u3088\u308b\u30da\u30fc\u30b8\u30f3\u30b0\u5b9f\u88c5\u518d\u8003(Window\u95a2\u6570\u4f7f\u7528\u7248)\u300d<\/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\">\u7b2c11\u56de\u300cDataloaders\u3092\u4f7f\u3063\u305fN+1\u554f\u984c\u3078\u306e\u5bfe\u5fdc\u300d<\/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\">\u7b2c10\u56de\u300cGraphQL(gqlgen)\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u300d<\/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\">\u7b2c\uff19\u56de\u300cGraphQL\u306b\u304a\u3051\u308b\u8a8d\u8a3c\u8a8d\u53ef\u4e8b\u4f8b\uff08Auth0 RBAC\u4ed5\u7acb\u3066\uff09\u300d<\/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\">\u7b2c\uff18\u56de\u300cGraphQL\/Nuxt.js(TypeScript\/Vuetify\/Apollo)\/Golang(gqlgen)\/Google Cloud Storage\u306e\u7d44\u307f\u5408\u308f\u305b\u3067\u52d5\u753b\u30d5\u30a1\u30a4\u30eb\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u5b9f\u88c5\u4f8b\u300d<\/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\">\u7b2c\uff17\u56de\u300cGraphQL\u306b\u304a\u3051\u308bRelay\u30b9\u30bf\u30a4\u30eb\u306b\u3088\u308b\u30da\u30fc\u30b8\u30f3\u30b0\u5b9f\u88c5\uff08\u5f8c\u7de8\uff1a\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\uff09\u300d<\/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\">\u7b2c\uff16\u56de\u300cGraphQL\u306b\u304a\u3051\u308bRelay\u30b9\u30bf\u30a4\u30eb\u306b\u3088\u308b\u30da\u30fc\u30b8\u30f3\u30b0\u5b9f\u88c5\uff08\u524d\u7de8\uff1a\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\uff09\u300d<\/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\">\u7b2c\uff15\u56de\u300cDB\u63a5\u7d9a\u4ed8\u304dGraphQL\u30b5\u30fc\u30d0(by Golang)\u3092\u30ed\u30fc\u30ab\u30eb\u30de\u30b7\u30f3\u4e0a\u3067Docker\u30b3\u30f3\u30c6\u30ca\u8d77\u52d5\u300d<\/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\">\u7b2c\uff14\u56de\u300cgraphql-codegen\u3067\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u3092GraphQL\u30b9\u30ad\u30fc\u30de\u30d5\u30a1\u30fc\u30b9\u30c8\u300d<\/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\">\u7b2c\uff13\u56de\u300cgo+gqlgen\u3067GraphQL\u30b5\u30fc\u30d0\u3092\u4f5c\u308b\uff08GORM\u4f7f\u3063\u3066DB\u63a5\u7d9a\uff09\u300d<\/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\">\u7b2c\uff12\u56de\u300cNuxtJS(with Apollo)\u306eTypeScript\u5bfe\u5fdc\u300d<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u7b2c\uff11\u56de\u300cfrontend\u306b\u300cnuxtjs\/apollo\u300d\u3001backend\u306b\u300cgo+gqlgen\u300d\u306e\u7d44\u307f\u5408\u308f\u305b\u3067GraphQL\u30b5\u30fc\u30d3\u30b9\u3092\u4f5c\u308b\u300d<\/ul>\n<h1>\u5f00\u53d1\u73af\u5883<\/h1>\n<h2>\u64cd\u4f5c\u7cfb\u7edf &#8211; Linux\uff08Ubuntu\uff09<\/h2>\n<pre class=\"post-pre\"><code>$ cat \/etc\/os-release\r\nNAME=\"Ubuntu\"\r\nVERSION=\"18.04.2 LTS (Bionic Beaver)\"\r\n<\/code><\/pre>\n<h2>\u540e\u7aef<\/h2>\n<h3>\u8bdd\u8bf4<\/h3>\n<pre class=\"post-pre\"><code>$ go version\r\ngo version go1.13.3 linux\/amd64\r\n<\/code><\/pre>\n<h3>\u5305\u7ba1\u7406\u5668 &#8211; Go\u6a21\u5757<\/h3>\n<h3>IDE &#8211; Goland (\u96c6\u6210\u5f00\u53d1\u73af\u5883 &#8211; Goland)<\/h3>\n<pre class=\"post-pre\"><code>GoLand 2019.2.5\r\nBuild #GO-192.7142.48, built on November 8, 2019\r\n<\/code><\/pre>\n<h2># Docker\u5bb9\u5668<\/h2>\n<h3>Docker\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u5e73\u53f0\uff0c\u7528\u4e8e\u81ea\u52a8\u5316\u90e8\u7f72\u3001\u7ba1\u7406\u548c\u8fd0\u884c\u5e94\u7528\u7a0b\u5e8f\u3002<\/h3>\n<pre class=\"post-pre\"><code>$ docker -v\r\nDocker version 18.09.2, build 6247962\r\n<\/code><\/pre>\n<h3>Docker Compose\uff1a\u8239\u8fd0\u7ec4\u5408<\/h3>\n<pre class=\"post-pre\"><code>$ docker-compose -v\r\ndocker-compose version 1.23.1, build b02f1306\r\n<\/code><\/pre>\n<h2># \u6570\u636e\u5e93\u8fde\u63a5\u5de5\u5177<\/h2>\n<h3>DataGrip\u662f\u4e00\u79cd\u6570\u636e\u5e93\u5f00\u53d1\u5de5\u5177\u3002<\/h3>\n<pre class=\"post-pre\"><code>DataGrip 2019.3.1\r\nBuild #DB-193.5662.58, built on December 18, 2019\r\n<\/code><\/pre>\n<h1>\u8bf7\u4f60\u7ed9\u6211\u63d0\u4f9b\u4e00\u4e2a\u9009\u9879\u7684\u4e2d\u6587\u7684\u540c\u4e49\u53e5\u3002<\/h1>\n<h2>GraphQL (\u56fe\u7075\u89c4\u8303\u67e5\u8be2\u8bed\u8a00)<\/h2>\n<p>https:\/\/graphql.org\/ -&gt; https:\/\/graphql.org\/ (\u4e0d\u9700\u8981\u91cd\u65b0\u7ffb\u8bd1)<br \/>\nhttps:\/\/gqlgen.com\/ -&gt; https:\/\/gqlgen.com\/ (\u4e0d\u9700\u8981\u91cd\u65b0\u7ffb\u8bd1)<\/p>\n<h2>O-R\u6620\u5c04\u5668<\/h2>\n<h1>\u5b9e\u8df5<\/h1>\n<p>\u672c\u6b21\u7684\u5168\u90e8\u6e90\u4ee3\u7801\u5982\u4e0b\uff1a<br \/>\nhttps:\/\/github.com\/sky0621\/study-graphql\/tree\/v0.3.0<\/p>\n<h2>\u8bbe\u8ba1<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u6a21\u4effTODO\u5e94\u7528\u7684\u529f\u80fd\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30e6\u30fc\u30b6\u60c5\u5831\u3092\uff11\u4ef6\u767b\u9332<\/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\">\u30e6\u30fc\u30b6\u60c5\u5831\u3092\uff11\u4ef6\u53d6\u5f97\uff08\u2605\u305d\u306e\u30e6\u30fc\u30b6\u3068\u7d10\u3065\u304fTODO\u60c5\u5831\u3082\u540c\u6642\u306b\u53d6\u5f97\u53ef\u80fd\uff09<\/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\">\u5168\u30e6\u30fc\u30b6\u60c5\u5831\u3092\u53d6\u5f97\uff08\u2605\u540c\u4e0a\uff09<\/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\">TODO\u60c5\u5831\u3092\uff11\u4ef6\u767b\u9332<\/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\">TODO\u60c5\u5831\u3092\uff11\u4ef6\u53d6\u5f97\uff08\u2605\u305d\u306eTODO\u3092\u767b\u9332\u3057\u305f\u30e6\u30fc\u30b6\u60c5\u5831\u3082\u540c\u6642\u306b\u53d6\u5f97\uff09<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u5168TODO\u60c5\u5831\u3092\u53d6\u5f97\uff08\u2605\u540c\u4e0a\uff09<\/ul>\n<h2>\u5728\u672c\u5730\u642d\u5efa\u6570\u636e\u5e93\u670d\u52a1\u5668<\/h2>\n<p>\u4f7f\u7528docker-compose\uff0c\u7f16\u5199Yaml\u6587\u4ef6\u3002<br \/>\n\u56e0\u4e3a\u6570\u636e\u5e93\u53ef\u4ee5\u4f7f\u7528\u4efb\u4f55\u4e00\u79cd\uff0c\u6240\u4ee5\u6211\u9009\u62e9\u4e86MySQL\u4f5c\u4e3a\u4e34\u65f6\u65b9\u6848\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"na\">version<\/span><span class=\"pi\">:<\/span> <span class=\"s1\">'<\/span><span class=\"s\">3'<\/span>\r\n<span class=\"na\">services<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"na\">db<\/span><span class=\"pi\">:<\/span>\r\n    <span class=\"na\">restart<\/span><span class=\"pi\">:<\/span> <span class=\"s\">always<\/span>\r\n    <span class=\"na\">image<\/span><span class=\"pi\">:<\/span> <span class=\"s\">mysql:5.7.24<\/span>\r\n    <span class=\"na\">command<\/span><span class=\"pi\">:<\/span> <span class=\"s\">mysqld --character-set-server=utf8 --collation-server=utf8_unicode_ci<\/span>\r\n    <span class=\"na\">ports<\/span><span class=\"pi\">:<\/span>\r\n      <span class=\"pi\">-<\/span> <span class=\"s2\">\"<\/span><span class=\"s\">3306:3306\"<\/span>\r\n    <span class=\"na\">environment<\/span><span class=\"pi\">:<\/span>\r\n      <span class=\"na\">MYSQL_ROOT_PASSWORD<\/span><span class=\"pi\">:<\/span> <span class=\"s\">rootpass<\/span>\r\n      <span class=\"na\">MYSQL_USER<\/span><span class=\"pi\">:<\/span> <span class=\"s\">localuser<\/span>\r\n      <span class=\"na\">MYSQL_PASSWORD<\/span><span class=\"pi\">:<\/span> <span class=\"s\">localpass<\/span>\r\n      <span class=\"na\">MYSQL_DATABASE<\/span><span class=\"pi\">:<\/span> <span class=\"s\">localdb<\/span>\r\n    <span class=\"na\">volumes<\/span><span class=\"pi\">:<\/span>\r\n      <span class=\"pi\">-<\/span> <span class=\"s\">.\/persistence\/init:\/docker-entrypoint-initdb.d<\/span>\r\n<\/code><\/pre>\n<p>\u53e6\u5916\uff0c\u5728Docker\u542f\u52a8\u65f6\uff0c\u6211\u8fd8\u60f3\u5728\u5bb9\u5668\u5185\u7684\u6570\u636e\u5e93\u4e2d\u521b\u5efa\u8868\u683c\uff0c\u56e0\u6b64\u63d0\u4f9b\u4ee5\u4e0bDDL\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">CREATE<\/span> <span class=\"k\">TABLE<\/span> <span class=\"n\">IF<\/span> <span class=\"k\">NOT<\/span> <span class=\"k\">EXISTS<\/span> <span class=\"nv\">`todo`<\/span> <span class=\"p\">(<\/span>\r\n  <span class=\"nv\">`id`<\/span> <span class=\"nb\">varchar<\/span><span class=\"p\">(<\/span><span class=\"mi\">64<\/span><span class=\"p\">)<\/span> <span class=\"k\">NOT<\/span> <span class=\"k\">NULL<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"nv\">`text`<\/span> <span class=\"nb\">varchar<\/span><span class=\"p\">(<\/span><span class=\"mi\">256<\/span><span class=\"p\">)<\/span> <span class=\"k\">NOT<\/span> <span class=\"k\">NULL<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"nv\">`done`<\/span> <span class=\"nb\">bool<\/span> <span class=\"k\">NOT<\/span> <span class=\"k\">NULL<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"nv\">`user_id`<\/span> <span class=\"nb\">varchar<\/span><span class=\"p\">(<\/span><span class=\"mi\">64<\/span><span class=\"p\">)<\/span> <span class=\"k\">NOT<\/span> <span class=\"k\">NULL<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"k\">PRIMARY<\/span> <span class=\"k\">KEY<\/span> <span class=\"p\">(<\/span><span class=\"nv\">`id`<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">)<\/span> <span class=\"n\">ENGINE<\/span><span class=\"o\">=<\/span><span class=\"n\">InnoDB<\/span> <span class=\"k\">DEFAULT<\/span> <span class=\"n\">CHARSET<\/span><span class=\"o\">=<\/span><span class=\"n\">utf8<\/span> <span class=\"k\">COLLATE<\/span> <span class=\"n\">utf8_bin<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"k\">CREATE<\/span> <span class=\"k\">TABLE<\/span> <span class=\"n\">IF<\/span> <span class=\"k\">NOT<\/span> <span class=\"k\">EXISTS<\/span> <span class=\"nv\">`user`<\/span> <span class=\"p\">(<\/span>\r\n  <span class=\"nv\">`id`<\/span> <span class=\"nb\">varchar<\/span><span class=\"p\">(<\/span><span class=\"mi\">64<\/span><span class=\"p\">)<\/span> <span class=\"k\">NOT<\/span> <span class=\"k\">NULL<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"nv\">`name`<\/span> <span class=\"nb\">varchar<\/span><span class=\"p\">(<\/span><span class=\"mi\">256<\/span><span class=\"p\">)<\/span> <span class=\"k\">NOT<\/span> <span class=\"k\">NULL<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"k\">PRIMARY<\/span> <span class=\"k\">KEY<\/span> <span class=\"p\">(<\/span><span class=\"nv\">`id`<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">)<\/span> <span class=\"n\">ENGINE<\/span><span class=\"o\">=<\/span><span class=\"n\">InnoDB<\/span> <span class=\"k\">DEFAULT<\/span> <span class=\"n\">CHARSET<\/span><span class=\"o\">=<\/span><span class=\"n\">utf8<\/span> <span class=\"k\">COLLATE<\/span> <span class=\"n\">utf8_bin<\/span><span class=\"p\">;<\/span>\r\n<\/code><\/pre>\n<p>\u7531\u4e8e\u51c6\u5907\u5b8c\u6bd5\uff0c\u53ef\u4ee5\u5f00\u59cb\u542f\u52a8\u4e86\u3002<\/p>\n<pre class=\"post-pre\"><code>$ pwd\r\n\/home\/sky0621\/src\/github.com\/sky0621\/study-graphql\r\n$\r\n$ ll docker-compose.yml \r\n-rw-r--r-- 1 sky0621 sky0621 399 Dec 22 20:12 docker-compose.yml\r\n$\r\n$ ls -lR persistence\/\r\npersistence\/:\r\ntotal 8\r\ndrwxr-xr-x 2 sky0621 sky0621 4096 Dec 22 20:14 init\r\n-rw-r--r-- 1 sky0621 sky0621   99 Dec 22 19:18 README.md\r\n\r\npersistence\/init:\r\ntotal 4\r\n-rw-r--r-- 1 sky0621 sky0621 405 Dec 22 20:14 1_create.sql\r\n$\r\n$ sudo docker-compose up\r\nCreating network \"study-graphql_default\" with the default driver\r\nCreating study-graphql_db_1_3a13f8e517b8 ... done\r\nAttaching to study-graphql_db_1_f411e51b48e6\r\ndb_1_f411e51b48e6 | Initializing database\r\n\u3000\u3000\u30fb\r\n\u3000\u3000\u30fb\r\n\u3000\u3000\u30fb\r\ndb_1_f411e51b48e6 | 2019-12-27T17:02:30.129056Z 0 [Note] mysqld: ready for connections.\r\ndb_1_f411e51b48e6 | Version: '5.7.24'  socket: '\/var\/run\/mysqld\/mysqld.sock'  port: 3306  MySQL Community Server (GPL)\r\n<\/code><\/pre>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d81c6913a08637a6ae056\/38-0.png\" alt=\"Screenshot from 2019-12-28 02-05-48.png\" \/><\/div>\n<h2>GraphQL\u6a21\u5f0f<\/h2>\n<p>\u9996\u5148\u5b9a\u4e49\u201cTODO\u4fe1\u606f\u201d\u548c\u201c\u7528\u6237\u4fe1\u606f\u201d\u6a21\u578b\u3002<br \/>\n\u201cTODO\u4fe1\u606f\u201d\u6a21\u578b\u4e2d\u5305\u542b\u201c\u7528\u6237\u4fe1\u606f\u201d\u6a21\u578b\uff0c\u5e76\u4e14\u201c\u7528\u6237\u4fe1\u606f\u201d\u6a21\u578b\u4e2d\u4e5f\u5305\u542b\u591a\u4e2a\u201cTODO\u4fe1\u606f\u201d\u6a21\u578b\u3002<br \/>\n\u901a\u8fc7\u8fd9\u79cd\u5b9a\u4e49\uff0c\u5f53\u5ba2\u6237\u7aef\u53d1\u51fa\u83b7\u53d6\u8be5\u6a21\u578b\u7684\u67e5\u8be2\u65f6\uff0c\u53ef\u4ee5\u901a\u8fc7\u4e00\u6b21\u67e5\u8be2\u83b7\u53d6\u6574\u4e2a\u5c42\u6b21\u7ed3\u6784\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\u5b9a\u4e49\u4ee5\u4e0b\u56db\u4e2a\u67e5\u8be2\u3002<br \/>\n&#8211; \u83b7\u53d6\u6240\u6709\u5f85\u529e\u4e8b\u9879\u4fe1\u606f\u3002<br \/>\n&#8211; \u83b7\u53d6\u7b2c\u4e00\u4e2a\u5f85\u529e\u4e8b\u9879\u4fe1\u606f\u3002<br \/>\n&#8211; \u83b7\u53d6\u6240\u6709\u7528\u6237\u4fe1\u606f\u3002<br \/>\n&#8211; \u83b7\u53d6\u7b2c\u4e00\u4e2a\u7528\u6237\u4fe1\u606f\u3002<\/p>\n<p>\u4e0b\u9762\u662f\u5b9a\u4e49\u7528\u4e8e\u65b0\u5efa\u7684\u53c2\u6570\u3002<br \/>\n&#8211; \u4ee5\u540d\u79f0\u201cNewTodo\u201d\u5b9a\u4e49TODO\u6ce8\u518c\u65f6\u7684\u53c2\u6570\u3002<br \/>\n&#8211; \u4ee5\u540d\u79f0\u201cNewUser\u201d\u5b9a\u4e49\u7528\u6237\u6ce8\u518c\u65f6\u7684\u53c2\u6570\u3002<\/p>\n<p>\u6700\u540e\u5b9a\u4e49\u4e86\u4ee5\u4e0b\u4e24\u4e2a\u53d8\u5f02\uff1a<br \/>\n&#8211; TODO\u4fe1\u606f\u6ce8\u518c<br \/>\n&#8211; \u7528\u6237\u4fe1\u606f\u6ce8\u518c<\/p>\n<pre class=\"post-pre\"><code><span class=\"c\"># GraphQL schema example<\/span>\r\n<span class=\"c\">#<\/span>\r\n<span class=\"c\"># https:\/\/gqlgen.com\/getting-started\/<\/span>\r\n\r\n<span class=\"k\">type<\/span> <span class=\"n\">Todo<\/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\">text<\/span><span class=\"p\">:<\/span> <span class=\"nb\">String<\/span><span class=\"p\">!<\/span>\r\n  <span class=\"n\">done<\/span><span class=\"p\">:<\/span> <span class=\"nb\">Boolean<\/span><span class=\"p\">!<\/span>\r\n  <span class=\"n\">user<\/span><span class=\"p\">:<\/span> <span class=\"n\">User<\/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\">id<\/span><span class=\"p\">:<\/span> <span class=\"nb\">ID<\/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\">todos<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span><span class=\"n\">Todo<\/span><span class=\"p\">!]!<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">type<\/span> <span class=\"n\">Query<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"n\">todos<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span><span class=\"n\">Todo<\/span><span class=\"p\">!]!<\/span>\r\n  <span class=\"n\">todo<\/span><span class=\"p\">(<\/span><span class=\"n\">id<\/span><span class=\"p\">:<\/span> <span class=\"nb\">ID<\/span><span class=\"p\">!):<\/span> <span class=\"n\">Todo<\/span><span class=\"p\">!<\/span>\r\n\r\n  <span class=\"n\">users<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span><span class=\"n\">User<\/span><span class=\"p\">!]!<\/span>\r\n  <span class=\"n\">user<\/span><span class=\"p\">(<\/span><span class=\"n\">id<\/span><span class=\"p\">:<\/span> <span class=\"nb\">ID<\/span><span class=\"p\">!):<\/span> <span class=\"n\">User<\/span><span class=\"p\">!<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">input<\/span> <span class=\"n\">NewTodo<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"n\">text<\/span><span class=\"p\">:<\/span> <span class=\"nb\">String<\/span><span class=\"p\">!<\/span>\r\n  <span class=\"n\">userId<\/span><span class=\"p\">:<\/span> <span class=\"nb\">String<\/span><span class=\"p\">!<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">input<\/span> <span class=\"n\">NewUser<\/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=\"p\">}<\/span>\r\n\r\n<span class=\"k\">type<\/span> <span class=\"n\">Mutation<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"n\">createTodo<\/span><span class=\"p\">(<\/span><span class=\"n\">input<\/span><span class=\"p\">:<\/span> <span class=\"n\">NewTodo<\/span><span class=\"p\">!):<\/span> <span class=\"nb\">ID<\/span><span class=\"p\">!<\/span>\r\n  <span class=\"n\">createUser<\/span><span class=\"p\">(<\/span><span class=\"n\">input<\/span><span class=\"p\">:<\/span> <span class=\"n\">NewUser<\/span><span class=\"p\">!):<\/span> <span class=\"nb\">ID<\/span><span class=\"p\">!<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<h2>Go\u7684\u5b9e\u73b0<\/h2>\n<h3>\u5728\u4e3b\u51fd\u6570\u4e2d\u6dfb\u52a0\u670d\u52a1\u5668\u542f\u52a8\u65f6\u5bf9\u6570\u636e\u5e93\u8fde\u63a5\u8fdb\u884c\u521d\u59cb\u5316\u7684\u5904\u7406\u3002<\/h3>\n<pre class=\"post-pre\"><code><span class=\"k\">package<\/span> <span class=\"n\">main<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"p\">(<\/span>\r\n    <span class=\"s\">\"log\"<\/span>\r\n    <span class=\"s\">\"net\/http\"<\/span>\r\n    <span class=\"s\">\"os\"<\/span>\r\n\r\n    <span class=\"s\">\"github.com\/99designs\/gqlgen\/handler\"<\/span>\r\n    <span class=\"s\">\"github.com\/jinzhu\/gorm\"<\/span>\r\n    <span class=\"s\">\"github.com\/sky0621\/study-graphql\/backend\"<\/span>\r\n\r\n    <span class=\"n\">_<\/span> <span class=\"s\">\"github.com\/go-sql-driver\/mysql\"<\/span>\r\n<span class=\"p\">)<\/span>\r\n\r\n<span class=\"k\">const<\/span> <span class=\"n\">dataSource<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"localuser:localpass@tcp(127.0.0.1:3306)\/localdb?charset=utf8&amp;parseTime=True&amp;loc=Local\"<\/span>\r\n<span class=\"k\">const<\/span> <span class=\"n\">defaultPort<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"5050\"<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">main<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">port<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">os<\/span><span class=\"o\">.<\/span><span class=\"n\">Getenv<\/span><span class=\"p\">(<\/span><span class=\"s\">\"PORT\"<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">port<\/span> <span class=\"o\">==<\/span> <span class=\"s\">\"\"<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">port<\/span> <span class=\"o\">=<\/span> <span class=\"n\">defaultPort<\/span>\r\n    <span class=\"p\">}<\/span>\r\n\r\n    <span class=\"c\">\/\/ \u4e3b\u306b\u3053\u3053\u306e\u51e6\u7406<\/span>\r\n    <span class=\"n\">db<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">gorm<\/span><span class=\"o\">.<\/span><span class=\"n\">Open<\/span><span class=\"p\">(<\/span><span class=\"s\">\"mysql\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">dataSource<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"nb\">panic<\/span><span class=\"p\">(<\/span><span class=\"n\">err<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">db<\/span> <span class=\"o\">==<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"nb\">panic<\/span><span class=\"p\">(<\/span><span class=\"n\">err<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"k\">defer<\/span> <span class=\"k\">func<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">if<\/span> <span class=\"n\">db<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">db<\/span><span class=\"o\">.<\/span><span class=\"n\">Close<\/span><span class=\"p\">();<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"nb\">panic<\/span><span class=\"p\">(<\/span><span class=\"n\">err<\/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=\"n\">db<\/span><span class=\"o\">.<\/span><span class=\"n\">LogMode<\/span><span class=\"p\">(<\/span><span class=\"no\">true<\/span><span class=\"p\">)<\/span>\r\n\r\n    <span class=\"n\">http<\/span><span class=\"o\">.<\/span><span class=\"n\">Handle<\/span><span class=\"p\">(<\/span><span class=\"s\">\"\/\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">handler<\/span><span class=\"o\">.<\/span><span class=\"n\">Playground<\/span><span class=\"p\">(<\/span><span class=\"s\">\"GraphQL playground\"<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"\/query\"<\/span><span class=\"p\">))<\/span>\r\n    <span class=\"n\">http<\/span><span class=\"o\">.<\/span><span class=\"n\">Handle<\/span><span class=\"p\">(<\/span><span class=\"s\">\"\/query\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">handler<\/span><span class=\"o\">.<\/span><span class=\"n\">GraphQL<\/span><span class=\"p\">(<\/span><span class=\"n\">backend<\/span><span class=\"o\">.<\/span><span class=\"n\">NewExecutableSchema<\/span><span class=\"p\">(<\/span><span class=\"n\">backend<\/span><span class=\"o\">.<\/span><span class=\"n\">Config<\/span><span class=\"p\">{<\/span><span class=\"n\">Resolvers<\/span><span class=\"o\">:<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">backend<\/span><span class=\"o\">.<\/span><span class=\"n\">Resolver<\/span><span class=\"p\">{<\/span><span class=\"n\">DB<\/span><span class=\"o\">:<\/span> <span class=\"n\">db<\/span><span class=\"p\">}})))<\/span>\r\n\r\n    <span class=\"n\">log<\/span><span class=\"o\">.<\/span><span class=\"n\">Printf<\/span><span class=\"p\">(<\/span><span class=\"s\">\"connect to http:\/\/localhost:%s\/ for GraphQL playground\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">port<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"n\">log<\/span><span class=\"o\">.<\/span><span class=\"n\">Fatal<\/span><span class=\"p\">(<\/span><span class=\"n\">http<\/span><span class=\"o\">.<\/span><span class=\"n\">ListenAndServe<\/span><span class=\"p\">(<\/span><span class=\"s\">\":\"<\/span><span class=\"o\">+<\/span><span class=\"n\">port<\/span><span class=\"p\">,<\/span> <span class=\"no\">nil<\/span><span class=\"p\">))<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<h3>\u6a21\u578b\u5b9a\u4e49<\/h3>\n<p>\u63a5\u4e0b\u6765\u662fGraphQL\u6a21\u5f0f\u4e2d\u5b9a\u4e49\u7684&#8221;TODO\u4fe1\u606f&#8221;\u6a21\u578b\u548c&#8221;\u7528\u6237\u4fe1\u606f&#8221;\u6a21\u578b\u7684Go\u5b9e\u73b0\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">package<\/span> <span class=\"n\">models<\/span>\r\n\r\n<span class=\"k\">type<\/span> <span class=\"n\">Todo<\/span> <span class=\"k\">struct<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">ID<\/span>   <span class=\"kt\">string<\/span> <span class=\"s\">`json:\"id\"`<\/span>\r\n    <span class=\"n\">Text<\/span> <span class=\"kt\">string<\/span> <span class=\"s\">`json:\"text\"`<\/span>\r\n    <span class=\"n\">Done<\/span> <span class=\"kt\">bool<\/span>   <span class=\"s\">`json:\"done\"`<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">type<\/span> <span class=\"n\">User<\/span> <span class=\"k\">struct<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">ID<\/span>   <span class=\"kt\">string<\/span> <span class=\"s\">`json:\"id\"`<\/span>\r\n    <span class=\"n\">Name<\/span> <span class=\"kt\">string<\/span> <span class=\"s\">`json:\"name\"`<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5f53\u4e0eGraphQL\u6a21\u5f0f\u5b9a\u4e49\u7684\u6a21\u578b\u8fdb\u884c\u6bd4\u8f83\uff0c\u5c31\u4f1a\u53d1\u73b0\u4f8b\u5982&#8221;TODO\u4fe1\u606f&#8221;\u6a21\u578b\u3002<br \/>\n\u5728GraphQL\u6a21\u5f0f\u4e2d\uff0c\u53ef\u4ee5\u8fd9\u6837\u5b9a\u4e49\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">type<\/span> <span class=\"n\">Todo<\/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\">text<\/span><span class=\"p\">:<\/span> <span class=\"nb\">String<\/span><span class=\"p\">!<\/span>\r\n  <span class=\"n\">done<\/span><span class=\"p\">:<\/span> <span class=\"nb\">Boolean<\/span><span class=\"p\">!<\/span>\r\n  <span class=\"n\">user<\/span><span class=\"p\">:<\/span> <span class=\"n\">User<\/span><span class=\"p\">!<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>Go\u7684\u5b9e\u73b0\u4e2d\u7f3a\u5c11\u4e0e&#8221;user: User!&#8221;\u76f8\u5173\u7684\u5143\u7d20\u3002<br \/>\n&#8220;\u7528\u6237\u4fe1\u606f&#8221;\u6a21\u578b\u4e5f\u662f\u5982\u6b64\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">type<\/span> <span class=\"n\">User<\/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\">name<\/span><span class=\"p\">:<\/span> <span class=\"nb\">String<\/span><span class=\"p\">!<\/span>\r\n  <span class=\"n\">todos<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span><span class=\"n\">Todo<\/span><span class=\"p\">!]!<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u300cTODO\u60c5\u5831\u300d\u6a21\u578b\u7684\u6570\u7ec4\u5728Go\u7aef\u7684\u5b9e\u73b0\u4e2d\u4e0d\u5b58\u5728\u3002<\/p>\n<p>\u8fd9\u5b9e\u9645\u4e0a\u662f\u8981\u70b9\u6240\u5728\u3002<\/p>\n<h3>gqlgen\u76f8\u5173<\/h3>\n<p>\u53ef\u4ee5\u4ece\u4e0a\u9762\u7684\u5185\u5bb9\u4e2d\u770b\u51fa\uff0c\u4f7f\u7528 gqlgen \u53ef\u4ee5\u81ea\u52a8\u751f\u6210\u5404\u79cd\u8d44\u6e90\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"na\">schema<\/span><span class=\"pi\">:<\/span>\r\n<span class=\"pi\">-<\/span> <span class=\"s\">..\/schema\/schema.graphql<\/span>\r\n<span class=\"na\">exec<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"na\">filename<\/span><span class=\"pi\">:<\/span> <span class=\"s\">generated.go<\/span>\r\n<span class=\"na\">model<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"na\">filename<\/span><span class=\"pi\">:<\/span> <span class=\"s\">models_gen.go<\/span>\r\n<span class=\"na\">resolver<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"na\">filename<\/span><span class=\"pi\">:<\/span> <span class=\"s\">resolver.go<\/span>\r\n  <span class=\"na\">type<\/span><span class=\"pi\">:<\/span> <span class=\"s\">Resolver<\/span>\r\n<span class=\"na\">autobind<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"pi\">-<\/span> <span class=\"s\">github.com\/sky0621\/study-graphql\/backend\/models<\/span>\r\n\r\n<span class=\"na\">models<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"na\">User<\/span><span class=\"pi\">:<\/span>\r\n    <span class=\"na\">model<\/span><span class=\"pi\">:<\/span> <span class=\"s\">models.User<\/span>\r\n  <span class=\"na\">Todo<\/span><span class=\"pi\">:<\/span>\r\n    <span class=\"na\">model<\/span><span class=\"pi\">:<\/span> <span class=\"s\">models.Todo<\/span>\r\n<\/code><\/pre>\n<p>\u4ee3\u7801\u751f\u6210\u5de5\u5177<\/p>\n<pre class=\"post-pre\"><code>$ pwd\r\n\/home\/sky0621\/src\/github.com\/sky0621\/study-graphql\/backend\r\n$\r\n$ ll gqlgen.yml \r\n-rw-r--r-- 1 sky0621 sky0621 388 Dec 22 23:32 gqlgen.yml\r\n$\r\n$ go run github.com\/99designs\/gqlgen init\r\n\u3000\u3000\u30fb\r\n\u3000\u3000\u30fb\r\n\u3000\u3000\u30fb\r\n$\r\n$ ll resolver.go \r\n-rw-rw-r-- 1 sky0621 sky0621 3.7K Dec 26 01:07 resolver.go\r\n<\/code><\/pre>\n<p>\u5173\u4e8e\u4f7f\u7528gqlgen\u547d\u4ee4\uff0c\u8bf7\u53c2\u8003\u4ee5\u4e0b\u94fe\u63a5\uff1a<br \/>\nhttps:\/\/qiita.com\/sky0621\/items\/8abd445edba347e8f6f1#gqlgen\u30b3\u30de\u30f3\u30c9\u306b\u3088\u308b\u30b9\u30b1\u30eb\u30c8\u30f3\u751f\u6210<\/p>\n<p>\u751f\u6210\u7684resolver.go\u6587\u4ef6\u5185\u7684\u5185\u5bb9\u662f\u4ec0\u4e48\uff1f<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">package<\/span> <span class=\"n\">backend<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"p\">(<\/span>\r\n    <span class=\"s\">\"context\"<\/span>\r\n\r\n    <span class=\"s\">\"github.com\/sky0621\/study-graphql\/backend\/models\"<\/span>\r\n<span class=\"p\">)<\/span>\r\n\r\n<span class=\"c\">\/\/ THIS CODE IS A STARTING POINT ONLY. IT WILL NOT BE UPDATED WITH SCHEMA CHANGES.<\/span>\r\n\r\n<span class=\"k\">type<\/span> <span class=\"n\">Resolver<\/span> <span class=\"k\">struct<\/span><span class=\"p\">{}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">r<\/span> <span class=\"o\">*<\/span><span class=\"n\">Resolver<\/span><span class=\"p\">)<\/span> <span class=\"n\">Mutation<\/span><span class=\"p\">()<\/span> <span class=\"n\">MutationResolver<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">mutationResolver<\/span><span class=\"p\">{<\/span><span class=\"n\">r<\/span><span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">r<\/span> <span class=\"o\">*<\/span><span class=\"n\">Resolver<\/span><span class=\"p\">)<\/span> <span class=\"n\">Query<\/span><span class=\"p\">()<\/span> <span class=\"n\">QueryResolver<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">queryResolver<\/span><span class=\"p\">{<\/span><span class=\"n\">r<\/span><span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">r<\/span> <span class=\"o\">*<\/span><span class=\"n\">Resolver<\/span><span class=\"p\">)<\/span> <span class=\"n\">Todo<\/span><span class=\"p\">()<\/span> <span class=\"n\">TodoResolver<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">todoResolver<\/span><span class=\"p\">{<\/span><span class=\"n\">r<\/span><span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">r<\/span> <span class=\"o\">*<\/span><span class=\"n\">Resolver<\/span><span class=\"p\">)<\/span> <span class=\"n\">User<\/span><span class=\"p\">()<\/span> <span class=\"n\">UserResolver<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">userResolver<\/span><span class=\"p\">{<\/span><span class=\"n\">r<\/span><span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">type<\/span> <span class=\"n\">mutationResolver<\/span> <span class=\"k\">struct<\/span><span class=\"p\">{<\/span> <span class=\"o\">*<\/span><span class=\"n\">Resolver<\/span> <span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">r<\/span> <span class=\"o\">*<\/span><span class=\"n\">mutationResolver<\/span><span class=\"p\">)<\/span> <span class=\"n\">CreateTodo<\/span><span class=\"p\">(<\/span><span class=\"n\">ctx<\/span> <span class=\"n\">context<\/span><span class=\"o\">.<\/span><span class=\"n\">Context<\/span><span class=\"p\">,<\/span> <span class=\"n\">input<\/span> <span class=\"n\">NewTodo<\/span><span class=\"p\">)<\/span> <span class=\"p\">(<\/span><span class=\"kt\">string<\/span><span class=\"p\">,<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nb\">panic<\/span><span class=\"p\">(<\/span><span class=\"s\">\"not implemented\"<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">r<\/span> <span class=\"o\">*<\/span><span class=\"n\">mutationResolver<\/span><span class=\"p\">)<\/span> <span class=\"n\">CreateUser<\/span><span class=\"p\">(<\/span><span class=\"n\">ctx<\/span> <span class=\"n\">context<\/span><span class=\"o\">.<\/span><span class=\"n\">Context<\/span><span class=\"p\">,<\/span> <span class=\"n\">input<\/span> <span class=\"n\">NewUser<\/span><span class=\"p\">)<\/span> <span class=\"p\">(<\/span><span class=\"kt\">string<\/span><span class=\"p\">,<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nb\">panic<\/span><span class=\"p\">(<\/span><span class=\"s\">\"not implemented\"<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">type<\/span> <span class=\"n\">queryResolver<\/span> <span class=\"k\">struct<\/span><span class=\"p\">{<\/span> <span class=\"o\">*<\/span><span class=\"n\">Resolver<\/span> <span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">r<\/span> <span class=\"o\">*<\/span><span class=\"n\">queryResolver<\/span><span class=\"p\">)<\/span> <span class=\"n\">Todos<\/span><span class=\"p\">(<\/span><span class=\"n\">ctx<\/span> <span class=\"n\">context<\/span><span class=\"o\">.<\/span><span class=\"n\">Context<\/span><span class=\"p\">)<\/span> <span class=\"p\">([]<\/span><span class=\"o\">*<\/span><span class=\"n\">models<\/span><span class=\"o\">.<\/span><span class=\"n\">Todo<\/span><span class=\"p\">,<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nb\">panic<\/span><span class=\"p\">(<\/span><span class=\"s\">\"not implemented\"<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">r<\/span> <span class=\"o\">*<\/span><span class=\"n\">queryResolver<\/span><span class=\"p\">)<\/span> <span class=\"n\">Todo<\/span><span class=\"p\">(<\/span><span class=\"n\">ctx<\/span> <span class=\"n\">context<\/span><span class=\"o\">.<\/span><span class=\"n\">Context<\/span><span class=\"p\">,<\/span> <span class=\"n\">id<\/span> <span class=\"kt\">string<\/span><span class=\"p\">)<\/span> <span class=\"p\">(<\/span><span class=\"o\">*<\/span><span class=\"n\">models<\/span><span class=\"o\">.<\/span><span class=\"n\">Todo<\/span><span class=\"p\">,<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nb\">panic<\/span><span class=\"p\">(<\/span><span class=\"s\">\"not implemented\"<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">r<\/span> <span class=\"o\">*<\/span><span class=\"n\">queryResolver<\/span><span class=\"p\">)<\/span> <span class=\"n\">Users<\/span><span class=\"p\">(<\/span><span class=\"n\">ctx<\/span> <span class=\"n\">context<\/span><span class=\"o\">.<\/span><span class=\"n\">Context<\/span><span class=\"p\">)<\/span> <span class=\"p\">([]<\/span><span class=\"o\">*<\/span><span class=\"n\">models<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span><span class=\"p\">,<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nb\">panic<\/span><span class=\"p\">(<\/span><span class=\"s\">\"not implemented\"<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">r<\/span> <span class=\"o\">*<\/span><span class=\"n\">queryResolver<\/span><span class=\"p\">)<\/span> <span class=\"n\">User<\/span><span class=\"p\">(<\/span><span class=\"n\">ctx<\/span> <span class=\"n\">context<\/span><span class=\"o\">.<\/span><span class=\"n\">Context<\/span><span class=\"p\">,<\/span> <span class=\"n\">id<\/span> <span class=\"kt\">string<\/span><span class=\"p\">)<\/span> <span class=\"p\">(<\/span><span class=\"o\">*<\/span><span class=\"n\">models<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span><span class=\"p\">,<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nb\">panic<\/span><span class=\"p\">(<\/span><span class=\"s\">\"not implemented\"<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">type<\/span> <span class=\"n\">todoResolver<\/span> <span class=\"k\">struct<\/span><span class=\"p\">{<\/span> <span class=\"o\">*<\/span><span class=\"n\">Resolver<\/span> <span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">r<\/span> <span class=\"o\">*<\/span><span class=\"n\">todoResolver<\/span><span class=\"p\">)<\/span> <span class=\"n\">User<\/span><span class=\"p\">(<\/span><span class=\"n\">ctx<\/span> <span class=\"n\">context<\/span><span class=\"o\">.<\/span><span class=\"n\">Context<\/span><span class=\"p\">,<\/span> <span class=\"n\">obj<\/span> <span class=\"o\">*<\/span><span class=\"n\">models<\/span><span class=\"o\">.<\/span><span class=\"n\">Todo<\/span><span class=\"p\">)<\/span> <span class=\"p\">(<\/span><span class=\"o\">*<\/span><span class=\"n\">models<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span><span class=\"p\">,<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nb\">panic<\/span><span class=\"p\">(<\/span><span class=\"s\">\"not implemented\"<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">type<\/span> <span class=\"n\">userResolver<\/span> <span class=\"k\">struct<\/span><span class=\"p\">{<\/span> <span class=\"o\">*<\/span><span class=\"n\">Resolver<\/span> <span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">r<\/span> <span class=\"o\">*<\/span><span class=\"n\">userResolver<\/span><span class=\"p\">)<\/span> <span class=\"n\">Todos<\/span><span class=\"p\">(<\/span><span class=\"n\">ctx<\/span> <span class=\"n\">context<\/span><span class=\"o\">.<\/span><span class=\"n\">Context<\/span><span class=\"p\">,<\/span> <span class=\"n\">obj<\/span> <span class=\"o\">*<\/span><span class=\"n\">models<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span><span class=\"p\">)<\/span> <span class=\"p\">([]<\/span><span class=\"o\">*<\/span><span class=\"n\">models<\/span><span class=\"o\">.<\/span><span class=\"n\">Todo<\/span><span class=\"p\">,<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nb\">panic<\/span><span class=\"p\">(<\/span><span class=\"s\">\"not implemented\"<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u55ef\uff0c\u96d6\u7136\u9019\u88e1\u5beb\u4e86\u5f88\u591a\u6771\u897f\uff0c\u4f46\u9019\u4e9b\u90fd\u662f\u5728\u57f7\u884cGraphQL\u6a21\u5f0f\u6240\u5b9a\u7fa9\u7684\u67e5\u8a62\u548c\u7a81\u8b8a\u6240\u9700\u7684\u908f\u8f2f\u96c6\u5408\u3002<br \/>\n\u5728\u9019\u5176\u4e2d\uff0c\u525b\u624d\u63d0\u5230\u7684\u300c\u5728GraphQL\u6a21\u5f0f\u4e2d\u6709\u4e00\u500b\u300euser: User!\u300f\uff0c\u4f46\u5728Go\u6a21\u578b\u4e2d\u6c92\u6709\u300d\u6d89\u53ca\u5230\u4ee5\u4e0b\u5169\u500b\uff1a<br \/>\n&#8211; todoResolver\u7684User\u65b9\u6cd5<br \/>\n&#8211; userResolver\u7684Todos\u65b9\u6cd5<\/p>\n<p>\u5173\u4e8e\u5b83\u5982\u4f55\u76f8\u5173\uff0c\u6700\u76f4\u89c2\u7684\u65b9\u5f0f\u5c31\u662f\u5b9e\u65bd\u5e76\u8fdb\u884c\u64cd\u4f5c\u786e\u8ba4\uff0c\u6240\u4ee5\u9996\u5148\u8981\u8fdb\u884c\u5b9e\u65bd\u3002<\/p>\n<h3>\u7528\u6237\u6ce8\u518c\uff08\u7701\u7565TODO\u6ce8\u518c\uff09<\/h3>\n<p>\u5f53\u6536\u5230\u5ba2\u6237\u7684\u4ee5\u4e0b\u8981\u6c42\u65f6\uff0c<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">type<\/span> <span class=\"n\">Mutation<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"n\">createUser<\/span><span class=\"p\">(<\/span><span class=\"n\">input<\/span><span class=\"p\">:<\/span> <span class=\"n\">NewUser<\/span><span class=\"p\">!):<\/span> <span class=\"nb\">ID<\/span><span class=\"p\">!<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">input<\/span> <span class=\"n\">NewUser<\/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=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u89e3\u51b3\u5668\u7684\u4ee5\u4e0b\u90e8\u5206\u53d1\u751f\u4e86\u706b\u707e<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">r<\/span> <span class=\"o\">*<\/span><span class=\"n\">mutationResolver<\/span><span class=\"p\">)<\/span> <span class=\"n\">CreateUser<\/span><span class=\"p\">(<\/span><span class=\"n\">ctx<\/span> <span class=\"n\">context<\/span><span class=\"o\">.<\/span><span class=\"n\">Context<\/span><span class=\"p\">,<\/span> <span class=\"n\">input<\/span> <span class=\"n\">NewUser<\/span><span class=\"p\">)<\/span> <span class=\"p\">(<\/span><span class=\"kt\">string<\/span><span class=\"p\">,<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">log<\/span><span class=\"o\">.<\/span><span class=\"n\">Printf<\/span><span class=\"p\">(<\/span><span class=\"s\">\"[mutationResolver.CreateUser] input: %#v\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">input<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"n\">id<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">util<\/span><span class=\"o\">.<\/span><span class=\"n\">CreateUniqueID<\/span><span class=\"p\">()<\/span>\r\n    <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">database<\/span><span class=\"o\">.<\/span><span class=\"n\">NewUserDao<\/span><span class=\"p\">(<\/span><span class=\"n\">r<\/span><span class=\"o\">.<\/span><span class=\"n\">DB<\/span><span class=\"p\">)<\/span><span class=\"o\">.<\/span><span class=\"n\">InsertOne<\/span><span class=\"p\">(<\/span><span class=\"o\">&amp;<\/span><span class=\"n\">database<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span><span class=\"p\">{<\/span>\r\n        <span class=\"n\">ID<\/span><span class=\"o\">:<\/span>   <span class=\"n\">id<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"n\">Name<\/span><span class=\"o\">:<\/span> <span class=\"n\">input<\/span><span class=\"o\">.<\/span><span class=\"n\">Name<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"p\">})<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"s\">\"\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"n\">id<\/span><span class=\"p\">,<\/span> <span class=\"no\">nil<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"k\">type<\/span> <span class=\"n\">NewUser<\/span> <span class=\"k\">struct<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">Name<\/span> <span class=\"kt\">string<\/span> <span class=\"s\">`json:\"name\"`<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5c06\u76ee\u6807\u7528\u6237\u4fe1\u606f\u6ce8\u518c\u5230\u7528\u6237\u8868\u4e2d\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">d<\/span> <span class=\"o\">*<\/span><span class=\"n\">userDao<\/span><span class=\"p\">)<\/span> <span class=\"n\">InsertOne<\/span><span class=\"p\">(<\/span><span class=\"n\">u<\/span> <span class=\"o\">*<\/span><span class=\"n\">User<\/span><span class=\"p\">)<\/span> <span class=\"kt\">error<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">res<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">d<\/span><span class=\"o\">.<\/span><span class=\"n\">db<\/span><span class=\"o\">.<\/span><span class=\"n\">Create<\/span><span class=\"p\">(<\/span><span class=\"n\">u<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">res<\/span><span class=\"o\">.<\/span><span class=\"n\">Error<\/span><span class=\"p\">;<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"n\">err<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"no\">nil<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">type<\/span> <span class=\"n\">User<\/span> <span class=\"k\">struct<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">ID<\/span>   <span class=\"kt\">string<\/span> <span class=\"s\">`gorm:\"column:id;primary_key\"`<\/span>\r\n    <span class=\"n\">Name<\/span> <span class=\"kt\">string<\/span> <span class=\"s\">`gorm:\"column:name\"`<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">u<\/span> <span class=\"o\">*<\/span><span class=\"n\">User<\/span><span class=\"p\">)<\/span> <span class=\"n\">TableName<\/span><span class=\"p\">()<\/span> <span class=\"kt\">string<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"s\">\"user\"<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d81c6913a08637a6ae056\/75-0.png\" alt=\"Screenshot from 2019-12-28 03-18-24.png\" \/><\/div>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d81c6913a08637a6ae056\/76-0.png\" alt=\"Screenshot from 2019-12-28 03-19-32.png\" \/><\/div>\n<h3>\uff11\u7528\u6237\u83b7\u53d6\uff08\u5ffd\u7565TODO\u83b7\u53d6\uff09<\/h3>\n<p>\u5982\u679c\u5ba2\u6237\u6709\u4ee5\u4e0b\u8981\u6c42\uff0c<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">type<\/span> <span class=\"n\">Query<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"n\">user<\/span><span class=\"p\">(<\/span><span class=\"n\">id<\/span><span class=\"p\">:<\/span> <span class=\"nb\">ID<\/span><span class=\"p\">!):<\/span> <span class=\"n\">User<\/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\">id<\/span><span class=\"p\">:<\/span> <span class=\"nb\">ID<\/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\">todos<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span><span class=\"n\">Todo<\/span><span class=\"p\">!]!<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">type<\/span> <span class=\"n\">Todo<\/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\">text<\/span><span class=\"p\">:<\/span> <span class=\"nb\">String<\/span><span class=\"p\">!<\/span>\r\n  <span class=\"n\">done<\/span><span class=\"p\">:<\/span> <span class=\"nb\">Boolean<\/span><span class=\"p\">!<\/span>\r\n  <span class=\"n\">user<\/span><span class=\"p\">:<\/span> <span class=\"n\">User<\/span><span class=\"p\">!<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u89e3\u51b3\u5458\u7684\u4ee5\u4e0b\u90e8\u5206\u53d1\u751f\u4e86\u7206\u70b8\uff0c\u5e76\u4e14<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">r<\/span> <span class=\"o\">*<\/span><span class=\"n\">queryResolver<\/span><span class=\"p\">)<\/span> <span class=\"n\">User<\/span><span class=\"p\">(<\/span><span class=\"n\">ctx<\/span> <span class=\"n\">context<\/span><span class=\"o\">.<\/span><span class=\"n\">Context<\/span><span class=\"p\">,<\/span> <span class=\"n\">id<\/span> <span class=\"kt\">string<\/span><span class=\"p\">)<\/span> <span class=\"p\">(<\/span><span class=\"o\">*<\/span><span class=\"n\">models<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span><span class=\"p\">,<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">log<\/span><span class=\"o\">.<\/span><span class=\"n\">Printf<\/span><span class=\"p\">(<\/span><span class=\"s\">\"[queryResolver.User] id: %s\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">id<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"n\">user<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">database<\/span><span class=\"o\">.<\/span><span class=\"n\">NewUserDao<\/span><span class=\"p\">(<\/span><span class=\"n\">r<\/span><span class=\"o\">.<\/span><span class=\"n\">DB<\/span><span class=\"p\">)<\/span><span class=\"o\">.<\/span><span class=\"n\">FindOne<\/span><span class=\"p\">(<\/span><span class=\"n\">id<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"no\">nil<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">models<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span><span class=\"p\">{<\/span>\r\n        <span class=\"n\">ID<\/span><span class=\"o\">:<\/span>   <span class=\"n\">user<\/span><span class=\"o\">.<\/span><span class=\"n\">ID<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"n\">Name<\/span><span class=\"o\">:<\/span> <span class=\"n\">user<\/span><span class=\"o\">.<\/span><span class=\"n\">Name<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"p\">},<\/span> <span class=\"no\">nil<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u518d\u4e09\u5f37\u8c03\u4e00\u4e0b\uff0cGraphQl\u6a21\u5f0f\u4e2d\u6709\u4e00\u4e2a\u4e0e&#8221;\u591a\u4e2a\u5f85\u529e\u4e8b\u9879\u4fe1\u606f&#8221;\u76f8\u5173\u7684\u5143\u7d20\uff0c\u800cGo\u6a21\u578b\u4e2d\u6ca1\u6709\u8fd9\u4e2a\u5143\u7d20\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">type<\/span> <span class=\"n\">User<\/span> <span class=\"k\">struct<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">ID<\/span>   <span class=\"kt\">string<\/span> <span class=\"s\">`json:\"id\"`<\/span>\r\n    <span class=\"n\">Name<\/span> <span class=\"kt\">string<\/span> <span class=\"s\">`json:\"name\"`<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u4ece\u7528\u6237\u8868\u4e2d\u83b7\u53d6\u76ee\u6807\u7528\u6237\u7684\u4fe1\u606f\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">d<\/span> <span class=\"o\">*<\/span><span class=\"n\">userDao<\/span><span class=\"p\">)<\/span> <span class=\"n\">FindOne<\/span><span class=\"p\">(<\/span><span class=\"n\">id<\/span> <span class=\"kt\">string<\/span><span class=\"p\">)<\/span> <span class=\"p\">(<\/span><span class=\"o\">*<\/span><span class=\"n\">User<\/span><span class=\"p\">,<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">var<\/span> <span class=\"n\">users<\/span> <span class=\"p\">[]<\/span><span class=\"o\">*<\/span><span class=\"n\">User<\/span>\r\n    <span class=\"n\">res<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">d<\/span><span class=\"o\">.<\/span><span class=\"n\">db<\/span><span class=\"o\">.<\/span><span class=\"n\">Where<\/span><span class=\"p\">(<\/span><span class=\"s\">\"id = ?\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">id<\/span><span class=\"p\">)<\/span><span class=\"o\">.<\/span><span class=\"n\">Find<\/span><span class=\"p\">(<\/span><span class=\"o\">&amp;<\/span><span class=\"n\">users<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">res<\/span><span class=\"o\">.<\/span><span class=\"n\">Error<\/span><span class=\"p\">;<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"no\">nil<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"nb\">len<\/span><span class=\"p\">(<\/span><span class=\"n\">users<\/span><span class=\"p\">)<\/span> <span class=\"o\">&lt;<\/span> <span class=\"m\">1<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"no\">nil<\/span><span class=\"p\">,<\/span> <span class=\"no\">nil<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"n\">users<\/span><span class=\"p\">[<\/span><span class=\"m\">0<\/span><span class=\"p\">],<\/span> <span class=\"no\">nil<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d81c6913a08637a6ae056\/86-0.png\" alt=\"Screenshot from 2019-12-28 03-47-30.png\" \/><\/div>\n<p>\u55ef\uff1f<br \/>\n\u5728Go\u7684\u6a21\u578b\u4e2d\uff0cUser\u5bf9\u8c61\u5e76\u6ca1\u6709\u5305\u542b\u4e00\u4e2aTodo\u6570\u7ec4\uff0c\u4f46\u662f\u54cd\u5e94\u4e2d\u5374\u5305\u542b\u4e86&#8221;todos&#8221;\u8fd9\u4e2a\u5b57\u6bb5&#8230;\u3002<\/p>\n<p>\u8fd9\u4e2a\u5176\u5b9e\u662f\u5728queryResolver.User\u65b9\u6cd5\u8c03\u7528\u5b8c\u6bd5\u540e\uff0c\u4ee5\u4e0b\u7684\u5185\u5bb9\u4e5f\u88ab\u89e6\u53d1\u4e86\u3002<br \/>\n\u5728\u4ee5\u4e0b\u7684Todos\u53c2\u6570\u4e2d\uff0cobj *models.User\u5305\u542b\u4e86\u4ece\u6570\u636e\u5e93\u83b7\u53d6\u7684\u7528\u6237\u4fe1\u606f\uff0c\u6240\u4ee5\u53ef\u4ee5\u901a\u8fc7\u8be5obj\u83b7\u53d6ID\uff0c\u5e76\u83b7\u53d6\u4e0e\u8be5\u7528\u6237\u76f8\u5173\u7684TODO\u5217\u8868\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">r<\/span> <span class=\"o\">*<\/span><span class=\"n\">userResolver<\/span><span class=\"p\">)<\/span> <span class=\"n\">Todos<\/span><span class=\"p\">(<\/span><span class=\"n\">ctx<\/span> <span class=\"n\">context<\/span><span class=\"o\">.<\/span><span class=\"n\">Context<\/span><span class=\"p\">,<\/span> <span class=\"n\">obj<\/span> <span class=\"o\">*<\/span><span class=\"n\">models<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span><span class=\"p\">)<\/span> <span class=\"p\">([]<\/span><span class=\"o\">*<\/span><span class=\"n\">models<\/span><span class=\"o\">.<\/span><span class=\"n\">Todo<\/span><span class=\"p\">,<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">log<\/span><span class=\"o\">.<\/span><span class=\"n\">Println<\/span><span class=\"p\">(<\/span><span class=\"s\">\"[userResolver.Todos]\"<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"n\">todos<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">database<\/span><span class=\"o\">.<\/span><span class=\"n\">NewTodoDao<\/span><span class=\"p\">(<\/span><span class=\"n\">r<\/span><span class=\"o\">.<\/span><span class=\"n\">DB<\/span><span class=\"p\">)<\/span><span class=\"o\">.<\/span><span class=\"n\">FindByUserID<\/span><span class=\"p\">(<\/span><span class=\"n\">obj<\/span><span class=\"o\">.<\/span><span class=\"n\">ID<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"no\">nil<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"k\">var<\/span> <span class=\"n\">results<\/span> <span class=\"p\">[]<\/span><span class=\"o\">*<\/span><span class=\"n\">models<\/span><span class=\"o\">.<\/span><span class=\"n\">Todo<\/span>\r\n    <span class=\"k\">for<\/span> <span class=\"n\">_<\/span><span class=\"p\">,<\/span> <span class=\"n\">todo<\/span> <span class=\"o\">:=<\/span> <span class=\"k\">range<\/span> <span class=\"n\">todos<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">results<\/span> <span class=\"o\">=<\/span> <span class=\"nb\">append<\/span><span class=\"p\">(<\/span><span class=\"n\">results<\/span><span class=\"p\">,<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">models<\/span><span class=\"o\">.<\/span><span class=\"n\">Todo<\/span><span class=\"p\">{<\/span>\r\n            <span class=\"n\">ID<\/span><span class=\"o\">:<\/span>   <span class=\"n\">todo<\/span><span class=\"o\">.<\/span><span class=\"n\">ID<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"n\">Text<\/span><span class=\"o\">:<\/span> <span class=\"n\">todo<\/span><span class=\"o\">.<\/span><span class=\"n\">Text<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"n\">Done<\/span><span class=\"o\">:<\/span> <span class=\"n\">todo<\/span><span class=\"o\">.<\/span><span class=\"n\">Done<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"p\">})<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"n\">results<\/span><span class=\"p\">,<\/span> <span class=\"no\">nil<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<h1>\u6574\u7406<\/h1>\n<p>\u5982\u679c\u6309\u7167\u672c\u6b21\u5b9e\u73b0\u7684\u65b9\u5f0f\uff0c\u5982\u679c\u662f\u83b7\u53d6TODO\u4fe1\u606f\u7684\u67e5\u8be2\uff0c\u5219\u4f1a\u89e6\u53d1TODO\u4fe1\u606f\u83b7\u53d6\u7684\u89e3\u6790\u5668\uff1b\u5982\u679c\u662f\u83b7\u53d6\u7528\u6237\u4fe1\u606f\u7684\u67e5\u8be2\uff0c\u5219\u4f1a\u89e6\u53d1\u7528\u6237\u4fe1\u606f\u83b7\u53d6\u7684\u89e3\u6790\u5668\u3002<br \/>\n\u53ea\u8981\u5b9e\u73b0\u4e86\u5404\u81ea\u7684\u5904\u7406\uff0cGraphQL\u5e93\u4f1a\u6839\u636e\u9700\u8981\u9002\u65f6\u8c03\u7528\u5fc5\u8981\u7684\u5904\u7406\uff0c\u5e76\u6839\u636eGraphQL\u6a21\u5f0f\u7684\u54cd\u5e94\u7ed3\u6784\u5c06\u7ed3\u679c\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\u3002<\/p>\n<p>\u8fd9\u91cc\u6709\u4e00\u4e2a\u95ee\u9898\u3002<br \/>\n\u5728\u83b7\u53d6\u7528\u6237\u4fe1\u606f\u7684\u67e5\u8be2\u4e2d\uff0c&#8221;TODO\u4fe1\u606f&#8221;\u6a21\u578b\u4e2d\u5305\u542b&#8221;\u7528\u6237\u4fe1\u606f&#8221;\u6a21\u578b\uff0c\u6bcf\u6b21\u83b7\u53d6TODO\u4fe1\u606f\u65f6\u4e5f\u4f1a\u540c\u65f6\u89e6\u53d1\u5173\u8054\u7684\u7528\u6237\u4fe1\u606f\u7684\u83b7\u53d6\u3002<br 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