{"id":47851,"date":"2023-10-29T01:02:48","date_gmt":"2022-11-08T22:35:29","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8node-js%e5%ae%9e%e7%8e%b0graphql-api\/"},"modified":"2024-05-04T06:29:15","modified_gmt":"2024-05-03T22:29:15","slug":"%e4%bd%bf%e7%94%a8node-js%e5%ae%9e%e7%8e%b0graphql-api","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8node-js%e5%ae%9e%e7%8e%b0graphql-api\/","title":{"rendered":"\u4f7f\u7528Node.js\u5b9e\u73b0GraphQL API"},"content":{"rendered":"<h1>\u9996\u5148<\/h1>\n<p>\u6211\u5c06\u5728Node.js\u4e2d\u5b9e\u73b0GraphQL API\u3002\u5173\u4e8eGraphQL\u7684\u6982\u8ff0\u4ee5\u53ca\u5ba2\u6237\u7aef\u6a21\u5f0f\u7684\u63cf\u8ff0\uff0c\u6211\u770b\u5230\u4e86\u4e00\u4e9b\u65e5\u6587\u6587\u6863\u3002\u7136\u800c\uff0c\u5173\u4e8eAPI\u5b9e\u73b0\u7684\u6587\u6863\u5374\u4e0d\u592a\u5e38\u89c1\uff0c\u6240\u4ee5\u6211\u4f1a\u5199\u4e0b\u6765\u3002<\/p>\n<p>\u6211\u5c06\u4ecb\u7ecd\u6211\u81ea\u5df1\u8fdb\u884c\u7814\u7a76\u5e76\u5b9e\u65bd\u7684\u6837\u4f8b\u3002\u5982\u679c\u60a8\u80fd\u53c2\u8003\u5176\u4e2d\u4e00\u4f8b\uff0c\u6211\u5c06\u611f\u5230\u975e\u5e38\u5e78\u8fd0\u3002\u5982\u679c\u60a8\u6709\u66f4\u597d\u7684\u5b9e\u65bd\u65b9\u6cd5\uff0c\u8bf7\u544a\u8bc9\u6211\u3002<\/p>\n<p>\u4e0d\u63d0\u53caGraphQL\u7684\u6982\u8ff0\u3002\u5b98\u65b9\u7f51\u7ad9\u548c\u4e0b\u9762\u7684\u6587\u7ae0\u5df2\u7ecf\u4ecb\u7ecd\u4e86\u76f8\u5173\u5185\u5bb9\u3002\uff08\u7b2c\u4e8c\u7bc7\u6587\u7ae0\u7684\u540e\u534a\u90e8\u5206\u8fd8\u4ecb\u7ecd\u4e86\u5728Ruby\u4e2d\u8fdb\u884cAPI\u5b9e\u73b0\u7684\u65b9\u6cd5\u3002\uff09<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">GraphQL\u5165\u9580 &#8211; \u4f7f\u3044\u305f\u304f\u306a\u308bGraphQL<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u300cGraphQL\u300d\u5fb9\u5e95\u5165\u9580 \u2500 REST\u3068\u306e\u6bd4\u8f03\u3001API\u30fb\u30d5\u30ed\u30f3\u30c8\u53cc\u65b9\u306e\u5b9f\u88c5\u304b\u3089\u5b66\u3076<\/ul>\n<h1>\u5236\u4f5c\u7269\uff08\u6982\u8981\u8bbe\u8ba1\uff09<\/h1>\n<h3>\u8bed\u8a00\u6846\u67b6<\/h3>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">TypeScript<\/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<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">express<\/ul>\n<p>\u6211\u5011\u5c07\u5728Node.js\u7684Web\u6846\u67b6express\u4e0a\u5275\u5efa\u4e00\u500b\u904b\u884c\u7684GraphQL API\u3002<\/p>\n<h3>\u7ec4\u6210<\/h3>\n<p>\u6784\u6210\u5982\u4e0b\u56fe\u6240\u793a\u3002MySQL\u88ab\u8bbe\u7f6e\u5728\u6570\u636e\u5e93\u4e2d\uff0cGraphQL API\u5bf9MySQL\u8fdb\u884c\u5305\u88c5\u3002API\u5c06GraphQL\u8bf7\u6c42\u8f6c\u6362\u4e3a\u5e38\u89c4\u7684SQL\u67e5\u8be2\uff0c\u5e76\u5411\u6570\u636e\u5e93\u53d1\u51fa\u67e5\u8be2\uff0c\u5e76\u5c06\u7ed3\u679c\u4f5c\u4e3a\u54cd\u5e94\u8fd4\u56de\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d816f913a08637a6ad2d4\/11-0.png\" alt=\"composion.png\" \/><\/div>\n<h3>\u9898\u6750<\/h3>\n<p>\u5047\u8bbe\u6709\u4e00\u4e2a\u7535\u5546\u7f51\u7ad9\u7684\u6570\u636e\u5e93\u3002\u8fd9\u4e2a\u6570\u636e\u5e93\u6309\u7167\u4ee5\u4e0b\u7ed3\u6784\u8fdb\u884c\u7ba1\u7406\uff1a\u5ba2\u6237\u4fe1\u606f\u3001\u4ea7\u54c1\u4fe1\u606f\u3001\u5236\u9020\u5546\u4fe1\u606f\u548c\u8ba2\u5355\u4fe1\u606f\u3002\u5047\u8bbe\u6240\u6709\u7684\u8868\u90fd\u6709\u4e00\u4e2a\u81ea\u589e\u7684\u4e3b\u952e&#8221;id&#8221;\u3002<\/p>\n<h5>\u5ba2\u6237\u4fe1\u606f (users)<\/h5>\n<div>\n<div class=\"post-table\">\u30d5\u30a3\u30fc\u30eb\u30c9\u540d\u578b\u6982\u8981idint\u30d7\u30e9\u30a4\u30de\u30ea\u30ad\u30fc, AUTO_INCREMENTnametext\u6c0f\u540dgendertext\u6027\u5225 (male, female\uff0c other)ranktext\u4f1a\u54e1\u30e9\u30f3\u30af (general, premium)<\/div>\n<\/div>\n<h5>\u4ea7\u54c1\u4fe1\u606f<\/h5>\n<div>\n<div class=\"post-table\">\u30d5\u30a3\u30fc\u30eb\u30c9\u540d\u578b\u6982\u8981idint\u30d7\u30e9\u30a4\u30de\u30ea\u30ad\u30fc, AUTO_INCREMENTnametext\u88fd\u54c1\u540dmodel_numbertext\u578b\u756apriceint\u4fa1\u683cmaker_idint\u5546\u54c1\u306e\u30e1\u30fc\u30ab\u306eid<\/div>\n<\/div>\n<h5>\u5236\u9020\u5546\u4fe1\u606f<\/h5>\n<div>\n<div class=\"post-table\">\u30d5\u30a3\u30fc\u30eb\u30c9\u540d\u578b\u6982\u8981idint\u30d7\u30e9\u30a4\u30de\u30ea\u30ad\u30fc, AUTO_INCREMENTnametext\u4f1a\u793e\u540d<\/div>\n<\/div>\n<h5>\u8ba2\u5355\u4fe1\u606f (\u8ba2\u5355)<\/h5>\n<div>\n<div class=\"post-table\">\u30d5\u30a3\u30fc\u30eb\u30c9\u540d\u578b\u6982\u8981idint\u30d7\u30e9\u30a4\u30de\u30ea\u30ad\u30fc, AUTO_INCREMENTorder_dateint\u6ce8\u6587\u65e5\u6642user_idint\u6ce8\u6587\u3057\u305f\u30e6\u30fc\u30b6\u306eID<\/div>\n<\/div>\n<h5>\u8ba2\u5355\u4fe1\u606f\u548c\u4ea7\u54c1\u4fe1\u606f\u7684\u8fde\u63a5\u8868\uff08order_product\uff09<\/h5>\n<p>\u8fd9\u662f\u4e00\u4e2a\u7528\u4e8e\u5408\u5e76\u4e0a\u8ff0orders\u548cproducts\u7684\u8868\u683c\uff0c\u7528\u4e8e\u8bb0\u5f55\u6bcf\u4e2a\u8ba2\u5355\u4e2d\u6240\u8d2d\u4e70\u7684\u5546\u54c1\u3002<\/p>\n<div>\n<div class=\"post-table\">\u30d5\u30a3\u30fc\u30eb\u30c9\u540d\u578b\u6982\u8981idint\u30d7\u30e9\u30a4\u30de\u30ea\u30ad\u30fc, AUTO_INCREMENTorder_idint\u6ce8\u6587IDproduct_idint\u88fd\u54c1ID<\/div>\n<\/div>\n<h3>\u6a21\u5f0f\u5b9a\u4e49<\/h3>\n<p>\u4ee5\u4e0b\u662f\u5c06\u4e0a\u8ff0\u8868\u7ed3\u6784\u66ff\u6362\u4e3aGraphQL\u6a21\u5f0f\u5b9a\u4e49\u7684\u7ed3\u679c\u3002\u8bf7\u6ce8\u610f\uff0c\u8fd9\u91cc\u53ea\u662f\u90e8\u5206\u5185\u5bb9\u3002\u60a8\u53ef\u4ee5\u5728github.com\u4e0a\u67e5\u770b\u5b8c\u6574\u5b9a\u4e49\u3002\uff08\u8fd9\u4e9b\u5b9a\u4e49\u662f\u4eceJavaScript\u5b9e\u73b0\u4e2d\u81ea\u52a8\u751f\u6210\u7684\u3002\uff09<\/p>\n<pre class=\"post-pre\"><code>\"\"\"\u304a\u5ba2\u69d8\u306e\u60c5\u5831\"\"\"\r\ntype User {\r\n  id: ID\r\n  name: String\r\n\r\n  \"\"\"\u6027\u5225\"\"\"\r\n  gender: Gender\r\n\r\n  \"\"\"\u4f1a\u54e1\u30e9\u30f3\u30af\"\"\"\r\n  rank: MemberRank\r\n  orders: OrderConnection\r\n}\r\n\r\n\"\"\"\u5546\u54c1\"\"\"\r\ntype Product {\r\n  id: ID\r\n\r\n  \"\"\"\u5546\u54c1\u540d\"\"\"\r\n  name: String\r\n\r\n  \"\"\"\u578b\u756a\"\"\"\r\n  modelNumber: String\r\n\r\n  \"\"\"\u8ca9\u58f2\u4fa1\u683c\"\"\"\r\n  price: Int\r\n  maker: Maker\r\n}\r\n\r\n\"\"\"\u88fd\u9020\u696d\u8005\"\"\"\r\ntype Maker {\r\n  id: ID\r\n  name: String\r\n  products: ProductConnection\r\n}\r\n\r\n\"\"\"\u6ce8\u6587\u60c5\u5831\"\"\"\r\ntype Order {\r\n  id: ID\r\n\r\n  \"\"\"\u6ce8\u6587\u65e5\u6642(UNIX TIME)\"\"\"\r\n  orderDate: Int\r\n\r\n  \"\"\"\u6ce8\u6587\u3057\u305f\u30e6\u30fc\u30b6\"\"\"\r\n  user: User\r\n\r\n  \"\"\"\u6ce8\u6587\u306b\u542b\u307e\u308c\u305f\u5546\u54c1\"\"\"\r\n  products(limit: Int, offset: Int = 0): ProductConnection\r\n}\r\n\r\n<\/code><\/pre>\n<p>\u6b64\u5916\uff0c\u4e3a\u7528\u6237\u7684\u7b49\u7ea7\u548c\u6027\u522b\u5b9a\u4e49\u4e86\u4ee5\u4e0b\u679a\u4e3e\u7c7b\u578b\u3002<\/p>\n<pre class=\"post-pre\"><code>\"\"\"\u6027\u5225\"\"\"\r\nenum Gender {\r\n  \"\"\"\u7537\u6027\"\"\"\r\n  male\r\n\r\n  \"\"\"\u5973\u6027\"\"\"\r\n  female\r\n\r\n  \"\"\"\u305d\u306e\u4ed6\"\"\"\r\n  other\r\n}\r\n\r\n\"\"\"\u4f1a\u54e1\u30e9\u30f3\u30af\"\"\"\r\nenum MemberRank {\r\n  \"\"\"\u4e00\u822c\u4f1a\u54e1\"\"\"\r\n  general\r\n\r\n  \"\"\"\u30b4\u30fc\u30eb\u30c9\u4f1a\u54e1\"\"\"\r\n  gold\r\n\r\n  \"\"\"\u30d7\u30e9\u30c1\u30ca\u4f1a\u54e1\"\"\"\r\n  platinum\r\n}\r\n<\/code><\/pre>\n<h1>\u5173\u4e8e &#8220;\u8fde\u63a5&#8221;<\/h1>\n<p>GraphQL\u4e2d\u6709\u4e00\u79cd\u88ab\u79f0\u4e3aConnection\u7684\u89c4\u8303\u3002\u867d\u7136\u542c\u8d77\u6765\u5f88\u590d\u6742\uff0c\u4f46\u5b9e\u8d28\u4e0a\u5c31\u662f\u5206\u9875\u529f\u80fd\u3002\u5b83\u53ef\u4ee5\u901a\u8fc7\u6570\u636e\u5e93\u7684limit\u3001offset\u6765\u9650\u5236\u67e5\u8be2\u7ed3\u679c\u6570\u91cf\uff0c\u6216\u8005\u8bbe\u7f6e\u5f00\u59cb\u663e\u793a\u7684\u4f4d\u7f6e\u3002<\/p>\n<p>\u53e6\u5916\uff0c\u9664\u4e86\u901a\u8fc7\u6570\u5b57\u6307\u5b9a\u504f\u79fb\u91cf\u6765\u786e\u5b9a\u8d77\u59cb\u4f4d\u7f6e\u4e4b\u5916\uff0c\u8fd8\u53ef\u4ee5\u901a\u8fc7\u6e38\u6807\u6765\u786e\u5b9a\u8d77\u59cb\u4f4d\u7f6e\u7684\u65b9\u6cd5\u3002\u6e38\u6807\u6307\u5b9a\u662f\u6307\u5728\u6570\u636e\u5e93\u7684\u6bcf\u4e00\u884c\u4e2d\u8bbe\u7f6e\u4e3b\u952e\uff08\u5982\u54c8\u5e0c\u503c\uff09\uff0c\u5e76\u4f7f\u7528\u8be5\u503c\u6765\u786e\u5b9a\u8d77\u59cb\u4f4d\u7f6e\u7684\u65b9\u6cd5\u3002\u8fd9\u5bf9\u4e8e\u5904\u7406\u603b\u662f\u4e0d\u65ad\u6dfb\u52a0\u65b0\u884c\u7684\u6570\u636e\u975e\u5e38\u6709\u6548\u3002\u4f8b\u5982\uff0cTwitter\u548cFacebook\u7684\u65f6\u95f4\u7ebf\u603b\u662f\u5728\u4e0d\u65ad\u6dfb\u52a0\u65b0\u884c\u3002\u7531\u4e8e\u4f7f\u7528\u504f\u79fb\u91cf\u6765\u786e\u5b9a\u4f4d\u7f6e\u4f1a\u5bfc\u81f4\u884c\u7684\u4f4d\u7f6e\u4e0d\u65ad\u66f4\u65b0\uff0c\u56e0\u6b64\u65e0\u6cd5\u6307\u5b9a\u76ee\u6807\u884c\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u53ef\u4ee5\u4f7f\u7528\u6e38\u6807\u4ee5\u884c\u7684\u503c\u672c\u8eab\u6765\u786e\u5b9a\u4f4d\u7f6e\u3002<\/p>\n<p>\u8bf7\u53c2\u8003\u4ee5\u4e0b\u5185\u5bb9\uff0c\u4ecb\u7ecd\u4e86\u6709\u5173GraphQL\u8fde\u63a5\u7684\u4fe1\u606f\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Pagination(\u516c\u5f0f\u30b5\u30a4\u30c8)<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">GraphQL\u5165\u9580 &#8211; \u4f7f\u3044\u305f\u304f\u306a\u308bGraphQL#\u3088\u308a\u5b9f\u8df5\u7684\u306a\u4f7f\u3044\u65b9<\/ul>\n<p>\u4e3a\u4e86\u7b80\u5316\uff0c\u6211\u4eec\u5c06\u4f7f\u7528\u504f\u79fb\u91cf\uff08offset\uff09\u548c\u9650\u5236\uff08limit\uff09\u6765\u5b9e\u73b0\u5206\u9875\u529f\u80fd\u3002<br \/>\n\u5728\u4e0a\u8ff0\u6a21\u5f0f\u5b9a\u4e49\u4e2d\uff0cXxxxxConnection\u4ee3\u8868\u5206\u9875\u529f\u80fd\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u5236\u9020\u5546\u5728\u4ea7\u54c1\u4e2d\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3aProductConnection\u7684\u9879\u76ee\u3002<\/p>\n<pre class=\"post-pre\"><code>\"\"\"\u88fd\u9020\u696d\u8005\"\"\"\r\ntype Maker {\r\n  id: ID\r\n  name: String\r\n  products: ProductConnection\r\n}\r\n<\/code><\/pre>\n<p>\u4ee5\u4e0b\u662f\u5bf9\u6b64\u7684\u67e5\u8be2\uff1a<br \/>\n\u5236\u9020\u5546\uff08maker\uff09\u521b\u5efa\u7684\u4ea7\u54c1\u7ec4\uff08products\uff09\uff0c\u67e5\u8be2\u4ece\u7b2c3\u5230\u7b2c10\u4e2a\u9879\u7684\u7ed3\u679c\u3002<br \/>\n\u8fb9\uff08edges\uff09\u548c\u8282\u70b9\uff08node\uff09\u662f\u89c4\u8303\u7684\u672f\u8bed\u3002<\/p>\n<pre class=\"post-pre\"><code>query {\r\n   makers {\r\n      id,\r\n      name,\r\n      products(limit:10, offset: 3) {\r\n          edges {\r\n              node {\r\n                 id,\r\n                 name\r\n             }\r\n          }\r\n      }\r\n   }\r\n}\r\n<\/code><\/pre>\n<p>\u5b9e\u9645\u4e0a\uff0c\u5982\u679c\u8981\u5b9e\u73b0Connection\uff0c\u6211\u4eec\u53ef\u4ee5\u5229\u7528\u4e00\u4e2a\u53eb\u505agraphql-relay\u7684\u5e93\u63d0\u4f9b\u7684\u4e00\u4e9b\u65b9\u4fbf\u7684\u51fd\u6570\u3002<\/p>\n<h1>\u5b9e\u65bd<\/h1>\n<p>\u73b0\u5728\uff0c\u8ba9\u6211\u6765\u4ecb\u7ecd\u4e00\u4e0b\u6211\u4eec\u5df2\u7ecf\u5b9e\u9645\u5b9e\u65bd\u7684\u90e8\u5206\u3002<\/p>\n<h2>\u4ee3\u7801\u5e93<\/h2>\n<p>\u8fd9\u6b21\uff0c\u6211\u5df2\u7ecf\u5c06\u6211\u81ea\u5df1\u5236\u4f5c\u7684\u5185\u5bb9\u4e0a\u4f20\u5230\u4e86\u4ee5\u4e0b\u7684Github\u5b58\u50a8\u5e93\u4e2d\u3002\u5982\u679c\u5bf9\u60a8\u6709\u6240\u5e2e\u52a9\uff0c\u6211\u5c06\u4e0d\u80dc\u8363\u5e78\u3002<\/p>\n<ul class=\"post-ul\">https:\/\/github.com\/hiroyky\/graphql_api_sample<\/ul>\n<h2>\u5728\u4e2d\u6587\u4e2d\uff0c\u4f60\u53ef\u4ee5\u8fd9\u6837\u8868\u8fbe&#8221;express\u548cGraphQL&#8221;\uff1a<br \/>\nExpress\u548cGraphQL<\/h2>\n<p>\u9996\u5148\uff0c\u5c06\u5305\u542bNodejs\u5165\u53e3\u70b9\u7684app.ts\u548c\u5305\u542b\/graphql\u5165\u53e3\u70b9\u7684graphql.ts\u653e\u5728\u6b64\u5904\u3002<\/p>\n<h5>app.ts\u7684\u4e2d\u6587\u91ca\u4e49<\/h5>\n<p>\u542f\u52a8\u5904\u7406\u672c\u8eab\u4e0e\u5e38\u89c1\u7684\u4f7f\u7528express\u6846\u67b6\u521b\u5efa\u7684Web\u5e94\u7528\u7a0b\u5e8f\u76f8\u540c\u3002<br \/>\n\u4f7f\u7528app.use(&#8220;\/graphql&#8221;, &#8220;&#8230;&#8221;)\u8bbe\u7f6e\u4e86GraphQL\u7684\u8def\u7531\u3002<br \/>\n\u6b64\u5916\uff0c\u8fd8\u8fdb\u884c\u4e86\u6570\u636e\u5e93\u8fde\u63a5\u5904\u7406\u3002MysqlDriver\u662f\u4e00\u4e2a\u7c7b\uff0c\u7528\u4e8e\u8fde\u63a5MySQL\u7b49\u6570\u636e\u5e93\u3002<br \/>\n\uff08\u7701\u7565\u4e86\u65ad\u5f00\u8fde\u63a5\u5904\u7406\u7684\u8bf4\u660e\u3002\uff09<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">import<\/span> <span class=\"nx\">bodyParser<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">body-parser<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nx\">express<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">express<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nx\">http<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">http<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nx\">graphql<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">.\/graphql<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nx\">MysqlDriver<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">.\/drivers\/mysql-driver<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">port<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">process<\/span><span class=\"p\">.<\/span><span class=\"nx\">env<\/span><span class=\"p\">.<\/span><span class=\"nx\">PORT<\/span> <span class=\"o\">||<\/span> <span class=\"mi\">3000<\/span><span class=\"p\">;<\/span>\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<span class=\"kd\">const<\/span> <span class=\"nx\">mysqlDriver<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">MysqlDriver<\/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=\"c1\">\/\/ \/graphql\u306e\u30d1\u30b9\u306b\u5bfe\u3057\u3066GraphQL\u3078\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u8a2d\u5b9a<\/span>\r\n<span class=\"nx\">app<\/span><span class=\"p\">.<\/span><span class=\"nx\">use<\/span><span class=\"p\">(<\/span><span class=\"dl\">\"<\/span><span class=\"s2\">\/graphql<\/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=\"o\">=&gt;<\/span> <span class=\"nx\">graphql<\/span><span class=\"p\">(<\/span><span class=\"nx\">mysqlDriver<\/span><span class=\"p\">)(<\/span><span class=\"nx\">req<\/span><span class=\"p\">,<\/span> <span class=\"nx\">res<\/span><span class=\"p\">));<\/span>\r\n\r\n<span class=\"c1\">\/\/ \u521d\u671f\u5316\u51e6\u7406\u5b8c\u4e86\u6642\u306e\u51e6\u7406<\/span>\r\n<span class=\"c1\">\/\/ HTTP\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u53d7\u3051\u4ed8\u3051\u308b\u3088\u3046\u306b\u3059\u308b\uff0e<\/span>\r\n<span class=\"nx\">app<\/span><span class=\"p\">.<\/span><span class=\"nx\">on<\/span><span class=\"p\">(<\/span><span class=\"dl\">\"<\/span><span class=\"s2\">ready<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nx\">app<\/span><span class=\"p\">.<\/span><span class=\"nx\">listen<\/span><span class=\"p\">(<\/span><span class=\"nx\">port<\/span><span class=\"p\">,<\/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=\"dl\">\"<\/span><span class=\"s2\">ready<\/span><span class=\"dl\">\"<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"p\">});<\/span>\r\n<span class=\"p\">});<\/span>\r\n\r\n<span class=\"nx\">http<\/span><span class=\"p\">.<\/span><span class=\"nx\">createServer<\/span><span class=\"p\">(<\/span><span class=\"nx\">app<\/span><span class=\"p\">);<\/span>\r\n\r\n<span class=\"c1\">\/\/ \u521d\u671f\u5316\u95a2\u6570\u304c\u5b8c\u4e86\u3057\u305f\u3089ready\u30a4\u30d9\u30f3\u30c8\u3092\u767a\u706b\u3059\u308b\uff0e<\/span>\r\n<span class=\"nx\">init<\/span><span class=\"p\">().<\/span><span class=\"nx\">then<\/span><span class=\"p\">(()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">app<\/span><span class=\"p\">.<\/span><span class=\"nx\">emit<\/span><span class=\"p\">(<\/span><span class=\"dl\">\"<\/span><span class=\"s2\">ready<\/span><span class=\"dl\">\"<\/span><span class=\"p\">));<\/span>\r\n\r\n<span class=\"c1\">\/\/ \u521d\u671f\u5316\u51e6\u7406<\/span>\r\n<span class=\"c1\">\/\/ MySQL\u3078\u306e\u63a5\u7d9a\u3092\u884c\u3063\u3066\u3044\u308b\uff0e<\/span>\r\n<span class=\"k\">async<\/span> <span class=\"kd\">function<\/span> <span class=\"nx\">init<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">await<\/span> <span class=\"nx\">mysqlDriver<\/span><span class=\"p\">.<\/span><span class=\"nx\">open<\/span><span class=\"p\">({<\/span>\r\n        <span class=\"na\">host<\/span><span class=\"p\">:<\/span> <span class=\"nx\">process<\/span><span class=\"p\">.<\/span><span class=\"nx\">env<\/span><span class=\"p\">.<\/span><span class=\"nx\">DB_HOSTNAME<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"na\">user<\/span><span class=\"p\">:<\/span> <span class=\"nx\">process<\/span><span class=\"p\">.<\/span><span class=\"nx\">env<\/span><span class=\"p\">.<\/span><span class=\"nx\">DB_USERNAME<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"na\">database<\/span><span class=\"p\">:<\/span> <span class=\"nx\">process<\/span><span class=\"p\">.<\/span><span class=\"nx\">env<\/span><span class=\"p\">.<\/span><span class=\"nx\">DB_NAME<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"na\">password<\/span><span class=\"p\">:<\/span> <span class=\"nx\">process<\/span><span class=\"p\">.<\/span><span class=\"nx\">env<\/span><span class=\"p\">.<\/span><span class=\"nx\">DB_PASSWORD<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"na\">port<\/span><span class=\"p\">:<\/span> <span class=\"nb\">parseInt<\/span><span class=\"p\">(<\/span><span class=\"nx\">process<\/span><span class=\"p\">.<\/span><span class=\"nx\">env<\/span><span class=\"p\">.<\/span><span class=\"nx\">DB_PORT<\/span> <span class=\"k\">as<\/span> <span class=\"kr\">string<\/span><span class=\"p\">),<\/span>\r\n    <span class=\"p\">});<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<h5>\u8fd9\u4e2a\u6587\u4ef6\u662fgraphql.ts\u3002<\/h5>\n<p>express-graphql\u4e2d\u7684graphqlHTTP()\u51fd\u6570\u8fd4\u56de\u4e3aGraphQL\u7684\u5165\u53e3\u70b9\uff0c\u63a5\u53d7\u7528\u4e8eschema\u548cMySQL\u8fde\u63a5\u7684\u9a71\u52a8\u7c7b\u5b9e\u4f8bdb\u4f5c\u4e3a\u53c2\u6570\u3002<br \/>\n\u901a\u8fc7\u5728context\u4e2d\u8bbe\u7f6e\u5bf9\u8c61\uff0c\u53ef\u4ee5\u76f4\u63a5\u5c06\u5176\u4f20\u9012\u7ed9\u540e\u7eed\u63d0\u5230\u7684resolve\u51fd\u6570\u3002<br \/>\n\u5728resolve\u51fd\u6570\u4e2d\uff0c\u5c06\u9700\u8981\u4f7f\u7528\u7684\u5bf9\u8c61\u7b49\u8bbe\u7f6e\u5728context\u4e2d\u3002<\/p>\n<pre class=\"post-pre\"><code>\r\n<span class=\"k\">import<\/span> <span class=\"nx\">graphqlHTTP<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">express-graphql<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nx\">MySqlDriver<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">.\/drivers\/mysql-driver<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nx\">schema<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">.\/schema\/schema<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"k\">export<\/span> <span class=\"k\">default<\/span> <span class=\"kd\">function<\/span> <span class=\"nx\">getGraphQLHttp<\/span><span class=\"p\">(<\/span><span class=\"nx\">db<\/span><span class=\"p\">:<\/span> <span class=\"nx\">MySqlDriver<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n\r\n    <span class=\"k\">return<\/span> <span class=\"nx\">graphqlHTTP<\/span><span class=\"p\">(()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">({<\/span>\r\n        <span class=\"na\">graphiql<\/span><span class=\"p\">:<\/span> <span class=\"kc\">true<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"nx\">schema<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"na\">context<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">db<\/span> <span class=\"p\">},<\/span>\r\n    <span class=\"p\">}));<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<h2>\u6a21\u5f0f\u7684\u5b9a\u4e49 de<\/h2>\n<p>\u597d\u7684\uff0c\u73b0\u5728\u8ba9\u6211\u4eec\u5b9e\u73b0GraphQL\u7684\u67b6\u6784\u5b9a\u4e49\u5427\u3002<\/p>\n<h5>schema.ts\u7684\u6c47\u7f16\u3002<\/h5>\n<p>\u9996\u5148\uff0c\u5728schema.ts\u6587\u4ef6\u4e2d\u5b9a\u4e49\u4e86\u67b6\u6784\u7684\u6846\u67b6\u3002\u5728\u8fd9\u4e2a\u6587\u4ef6\u4e2d\uff0c\u5206\u522b\u8bbe\u7f6e\u4e86query\uff08\u53c2\u8003\u7cfb\uff09\u548cmutation\uff08\u66f4\u65b0\u7cfb\uff09\u7684\u5b9a\u4e49\u3002\u5c06\u6240\u6709\u7684\u5b9a\u4e49\u90fd\u5199\u5728schema.ts\u6587\u4ef6\u4e2d\u4e5f\u6ca1\u6709\u95ee\u9898\uff0c\u4f46\u4e3a\u4e86\u53ef\u8bfb\u6027\u7684\u8003\u8651\uff0c\u6211\u4eec\u5c06\u5176\u5206\u6210\u4e86\u51e0\u4e2a\u90e8\u5206\u3002\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u5c06\u5bfc\u51fa\u7684schema\u8bbe\u7f6e\u4e3a\u524d\u8fdb\u7684graphqlHTTP()\u7684schema\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">GraphQLObjectType<\/span><span class=\"p\">,<\/span> <span class=\"nx\">GraphQLSchema<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">graphql<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nx\">mutations<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">.\/mutations<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nx\">queries<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">.\/queries<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">schema<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">GraphQLSchema<\/span><span class=\"p\">({<\/span>\r\n    <span class=\"na\">query<\/span><span class=\"p\">:<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">GraphQLObjectType<\/span><span class=\"p\">({<\/span>\r\n        <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">GraphQLSampleQueries<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"na\">fields<\/span><span class=\"p\">:<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">({<\/span>\r\n            <span class=\"p\">...<\/span><span class=\"nx\">queries<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"p\">}),<\/span>\r\n    <span class=\"p\">}),<\/span>\r\n\r\n    <span class=\"na\">mutation<\/span><span class=\"p\">:<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">GraphQLObjectType<\/span><span class=\"p\">({<\/span>\r\n        <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">GraphQLSampleMutations<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"na\">fields<\/span><span class=\"p\">:<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">({<\/span>\r\n            <span class=\"p\">...<\/span><span class=\"nx\">mutations<\/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\r\n<span class=\"k\">export<\/span> <span class=\"k\">default<\/span> <span class=\"nx\">schema<\/span><span class=\"p\">;<\/span>\r\n<\/code><\/pre>\n<h5>\u67e5\u8be2.ts<\/h5>\n<p>\u5728queries.ts\u4e2d\u5b9e\u73b0\u67e5\u8be2\uff08\u53c2\u7167\u7cfb\uff09\u7684\u5b9a\u4e49\u3002\u8bf7\u6ce8\u610f\uff0c\u8fd9\u91cc\u53ea\u63d0\u4f9b\u4e86\u7528\u6237\u4fe1\u606f\uff08User\uff09\u548c\u4ea7\u54c1\u4fe1\u606f\uff08Product\uff09\u7684\u5b9a\u4e49\uff0c\u5e76\u7701\u7565\u4e86\u5176\u4ed6\u5b9a\u4e49\u3002\u8bf7\u67e5\u770bGithub\u4e0a\u7684\u4ee3\u7801\u5b9e\u73b0\u5176\u4ed6\u5b9a\u4e49\u3002<\/p>\n<p>\u5bf9\u4e8e\u7528\u6237\u3001\u7528\u6237\u7fa4\u3001\u4ea7\u54c1\u3001\u4ea7\u54c1\u7fa4\uff0c\u5206\u522b\u8bbe\u7f6e\u5982\u4e0b\u5185\u5bb9\uff1a<br \/>\n&#8211; \u5728type\u4e2d\u8bbe\u7f6e\u8d44\u6e90\u7684\u7c7b\u578b\u5b9a\u4e49\u3002<br \/>\n&#8211; \u5728args\u4e2d\u8bbe\u7f6e\u53ef\u4ee5\u7528\u4e8e\u83b7\u53d6\u548c\u66f4\u65b0\u8d44\u6e90\u65f6\u7684\u53c2\u6570\u5b9a\u4e49\u3002<br \/>\n&#8211; \u5728resolve\u4e2d\u8bbe\u7f6e\u7528\u4e8e\u83b7\u53d6\u8be5\u8d44\u6e90\u7684\u51fd\u6570\u3002<\/p>\n<p>\u7528\u6237\uff0c\u4e3a\u4e86\u51c6\u5907\u5355\u6570\u548c\u590d\u6570\u5f62\u5f0f\u7684\u60c5\u51b5\uff0c<br \/>\n&#8211; \u5728\u5355\u6570\u5f62\u5f0f\u4e2d\uff0c\u4f7f\u7528\u4e3b\u952e\u8fd4\u56de\u4e00\u884c\u6570\u636e\u3002<br \/>\n&#8211; \u5728\u590d\u6570\u5f62\u5f0f\u4e2d\uff0c\u8fd4\u56de\u591a\u884c\u5339\u914d\u7684\u7ed3\u679c\u3002<br \/>\n\u6b64\u5916\uff0c\u5728\u590d\u6570\u5f62\u5f0f\u4e2d\uff0c\u4f7f\u7528\u524d\u9762\u63d0\u5230\u7684\u8fde\u63a5\u8bbe\u7f6e\u4e86\u9002\u7528\u4e8e\u5206\u9875\u7684\u7c7b\u578b\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">resolveProduct<\/span><span class=\"p\">,<\/span> <span class=\"nx\">resolveProducts<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">..\/resolvers\/product-resolver<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">resolveUser<\/span><span class=\"p\">,<\/span> <span class=\"nx\">resolveUsers<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">..\/resolvers\/user-resolver<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">IdArgument<\/span><span class=\"p\">,<\/span> <span class=\"nx\">ProductArgment<\/span><span class=\"p\">,<\/span> <span class=\"nx\">UserArgument<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">.\/argument<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nx\">Product<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"nx\">ProductConnection<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"nx\">User<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"nx\">UserConnection<\/span><span class=\"p\">,<\/span>\r\n<span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">.\/query-type<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">userQueries<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"na\">user<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">User<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"na\">args<\/span><span class=\"p\">:<\/span> <span class=\"nx\">IdArgument<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"na\">resolve<\/span><span class=\"p\">:<\/span> <span class=\"nx\">resolveUser<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"p\">},<\/span>\r\n\r\n    <span class=\"na\">users<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">UserConnection<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"na\">args<\/span><span class=\"p\">:<\/span> <span class=\"nx\">UserArgument<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"na\">resolve<\/span><span class=\"p\">:<\/span> <span class=\"nx\">resolveUsers<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"p\">},<\/span>\r\n<span class=\"p\">};<\/span>\r\n\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">productQueries<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"na\">product<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Product<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"na\">args<\/span><span class=\"p\">:<\/span> <span class=\"nx\">IdArgument<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"na\">resolve<\/span><span class=\"p\">:<\/span> <span class=\"nx\">resolveProduct<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"p\">},<\/span>\r\n\r\n    <span class=\"na\">products<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">ProductConnection<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"na\">args<\/span><span class=\"p\">:<\/span> <span class=\"nx\">ProductArgment<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"na\">resolve<\/span><span class=\"p\">:<\/span> <span class=\"nx\">resolveProducts<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"p\">},<\/span>\r\n<span class=\"p\">};<\/span>\r\n\r\n<span class=\"k\">export<\/span> <span class=\"k\">default<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"p\">...<\/span><span class=\"nx\">userQueries<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"p\">...<\/span><span class=\"nx\">productQueries<\/span><span class=\"p\">,<\/span>\r\n<span class=\"p\">};<\/span>\r\n<\/code><\/pre>\n<p>\u6839\u636e\u8fd9\u4e2a\u5b9a\u4e49\uff0c\u4f8b\u5982\u5f53\u8bf7\u6c42\u4ee5\u4e0b\u67e5\u8be2\u65f6\uff0c\u8bbe\u7f6e\u5728users\u4e2d\u7684resolve\u51fd\u6570\uff1aresolveUsers()\u5c06\u88ab\u6267\u884c\uff0c\u5e76\u4e14\u5176\u8fd4\u56de\u503c\u5c06\u4f5c\u4e3aAPI\u7684\u54cd\u5e94\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">query<\/span> <span class=\"p\">{<\/span>\r\n   <span class=\"n\">users<\/span><span class=\"p\">(<\/span><span class=\"n\">gender<\/span><span class=\"p\">:<\/span><span class=\"s2\">\"female\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">limit<\/span><span class=\"p\">:<\/span><span class=\"mi\">10<\/span><span class=\"p\">,<\/span> <span class=\"n\">offset<\/span><span class=\"p\">:<\/span><span class=\"err\">0)<\/span> <span class=\"p\">{<\/span>\r\n       <span class=\"err\">name<\/span>\r\n   <span class=\"p\">}<\/span>\r\n<span class=\"err\">}<\/span>\r\n<\/code><\/pre>\n<h5>\u7a81\u53d8.ts<\/h5>\n<p>\u5728mutations.ts\u4e2d\u5b9e\u73b0mutation\uff08\u66f4\u65b0\u7c7b\uff09\u7684\u5b9a\u4e49\u3002\u5199\u6cd5\u4e0equery\uff08\u53c2\u8003\u7c7b\uff09\u76f8\u540c\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">GraphQLNonNull<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">graphql<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">createUser<\/span><span class=\"p\">,<\/span> <span class=\"nx\">updateUser<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">..\/resolvers\/user-resolver<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">UserInsertArgument<\/span><span class=\"p\">,<\/span> <span class=\"nx\">UserUpdateArgument<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">.\/argument<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">User<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">.\/query-type<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">userMutations<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"na\">createUser<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">User<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"na\">args<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"na\">user<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">GraphQLNonNull<\/span><span class=\"p\">(<\/span><span class=\"nx\">UserInsertArgument<\/span><span class=\"p\">),<\/span>\r\n            <span class=\"p\">},<\/span>\r\n        <span class=\"p\">},<\/span>\r\n        <span class=\"na\">resolve<\/span><span class=\"p\">:<\/span> <span class=\"nx\">createUser<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"p\">},<\/span>\r\n\r\n    <span class=\"na\">updateUser<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">User<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"na\">args<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"na\">user<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">GraphQLNonNull<\/span><span class=\"p\">(<\/span><span class=\"nx\">UserUpdateArgument<\/span><span class=\"p\">),<\/span>\r\n            <span class=\"p\">},<\/span>\r\n        <span class=\"p\">},<\/span>\r\n        <span class=\"na\">resolve<\/span><span class=\"p\">:<\/span> <span class=\"nx\">updateUser<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"p\">},<\/span>\r\n<span class=\"p\">};<\/span>\r\n\r\n<span class=\"k\">export<\/span> <span class=\"k\">default<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"p\">...<\/span><span class=\"nx\">userMutations<\/span><span class=\"p\">,<\/span>\r\n<span class=\"p\">};<\/span>\r\n<\/code><\/pre>\n<p>\u901a\u8fc7\u8fd9\u6837\u505a\uff0c\u53ef\u4ee5\u6267\u884c\u4ee5\u4e0b\u67e5\u8be2\u3002\u6267\u884c\u4e0ecreateUser()\u51fd\u6570\u5173\u8054\u7684resolve\u51fd\u6570\uff0c\u8be5\u51fd\u6570\u5c06\u6267\u884c\u6570\u636e\u5e93\u7684\u5199\u5165\u64cd\u4f5c\u3002\u5e76\u4e14\u901a\u8fc7\u8fd4\u56de\u5199\u5165\u540e\u7684\u503c\u6765\u521b\u5efa\u54cd\u5e94\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">mutation<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"n\">createUser<\/span><span class=\"p\">(<\/span>\r\n    <span class=\"n\">user<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span>\r\n      <span class=\"n\">name<\/span><span class=\"p\">:<\/span><span class=\"s2\">\"\u539f\u7530\"<\/span><span class=\"p\">,<\/span>\r\n      <span class=\"n\">gender<\/span><span class=\"p\">:<\/span> <span class=\"s2\">\"female\"<\/span>\r\n    <span class=\"p\">}<\/span>\r\n  <span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">id<\/span><span class=\"p\">,<\/span> <span class=\"n\">name<\/span><span class=\"p\">,<\/span> <span class=\"n\">gender<\/span>\r\n  <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<h2>\u6a21\u5f0f\u5b9a\u4e49\uff08\u7c7b\u578b\u5b9a\u4e49\uff09<\/h2>\n<p>\u6211\u4eec\u5148\u6765\u5b9e\u73b0\u901a\u8fc7type\u6307\u5b9a\u7684\u7c7b\u578b\u5b9a\u4e49\uff0c\u6bd4\u5982User\u3001Product\u7b49\u7b49\u3002\u8fd9\u4e9b\u5b9a\u4e49\u9700\u8981\u5728query-type.ts\u6587\u4ef6\u4e2d\u8fdb\u884c\u7f16\u5199\u3002<br \/>\n\u53e6\u5916\uff0c\u5728\u8fd9\u4e9b\u5b9a\u4e49\u4e2d\u4f7f\u7528\u5230\u7684\u679a\u4e3e\u7c7b\u578b\u53ef\u4ee5\u5355\u72ec\u5206\u79bb\u5230enum-type.ts\u6587\u4ef6\u4e2d\u8fdb\u884c\u7f16\u5199\u3002\uff08\u867d\u7136\u6ca1\u6709\u5fc5\u8981\u8fdb\u884c\u5206\u79bb\uff0c\u4f46\u76ee\u524d\u6765\u770b\u8fd9\u6837\u53ef\u4ee5\u63d0\u9ad8\u53ef\u8bfb\u6027\uff09<\/p>\n<h5>\u67e5\u8be2\u7c7b\u578b.ts (Zh\u01d0<\/h5>\n<p>\u5728GraphQLObjectType\u4e2d\u5b9a\u4e49\u4e86\u7c7b\u578b\u3002\u7136\u540e\u5b9a\u4e49\u4e86\u4ee5\u4e0b\u5185\u5bb9\u3002\u7ed3\u6784\u4f53\u7684\u5b9a\u4e49\u548c\u6240\u505a\u7684\u5de5\u4f5c\u662f\u76f8\u540c\u7684\u3002<br \/>\n&#8211; name: \u7c7b\u578b\u540d\u79f0<br \/>\n&#8211; description: \u7c7b\u578b\u63cf\u8ff0\uff08\u53ef\u9009\u7684\uff09<br \/>\n&#8211; fields: \u7c7b\u578b\u7684\u5185\u5bb9<\/p>\n<p>\u53e6\u5916\uff0c\u5728\u540e\u534a\u90e8\u5206\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u7528\u4e8e\u5b9e\u73b0\u5206\u9875\u5bfc\u822a\u7684Connection\u7c7b\u578b\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528graphql-relay\u63d0\u4f9b\u7684connectionDefinitions()\u8f7b\u677e\u5b9e\u73b0\u5b83\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">GraphQLID<\/span><span class=\"p\">,<\/span> <span class=\"nx\">GraphQLInt<\/span><span class=\"p\">,<\/span> <span class=\"nx\">GraphQLObjectType<\/span><span class=\"p\">,<\/span> <span class=\"nx\">GraphQLString<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">graphql<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">connectionDefinitions<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">graphql-relay<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">resolveByParentMakerId<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">..\/resolvers\/maker-resolver<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">resolveProductsByRelatedOrder<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">..\/resolvers\/product-resolver<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">resolveUserByParentId<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">..\/resolvers\/user-resolver<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">ConnectionArgument<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">.\/argument<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">GenderEnum<\/span><span class=\"p\">,<\/span> <span class=\"nx\">MemberRank<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">.\/enum-type<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"nx\">User<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">GraphQLObjectType<\/span><span class=\"p\">({<\/span>\r\n    <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">User<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"na\">description<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">\u304a\u5ba2\u69d8\u306e\u60c5\u5831<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"na\">fields<\/span><span class=\"p\">:<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">({<\/span>\r\n        <span class=\"na\">id<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">GraphQLID<\/span> <span class=\"p\">},<\/span>\r\n        <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">GraphQLString<\/span> <span class=\"p\">},<\/span>\r\n        <span class=\"na\">gender<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">GenderEnum<\/span><span class=\"p\">,<\/span> <span class=\"na\">description<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">\u6027\u5225<\/span><span class=\"dl\">\"<\/span> <span class=\"p\">},<\/span>\r\n        <span class=\"na\">rank<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">MemberRank<\/span><span class=\"p\">,<\/span> <span class=\"na\">description<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">\u4f1a\u54e1\u30e9\u30f3\u30af<\/span><span class=\"dl\">\"<\/span> <span class=\"p\">},<\/span>\r\n        <span class=\"na\">orders<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">OrderConnection<\/span> <span class=\"p\">},<\/span>\r\n    <span class=\"p\">}),<\/span>\r\n<span class=\"p\">});<\/span>\r\n\r\n<span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"nx\">Product<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">GraphQLObjectType<\/span><span class=\"p\">({<\/span>\r\n    <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">Product<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"na\">description<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">\u5546\u54c1<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"na\">fields<\/span><span class=\"p\">:<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">({<\/span>\r\n        <span class=\"na\">id<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">GraphQLID<\/span> <span class=\"p\">},<\/span>\r\n        <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">GraphQLString<\/span><span class=\"p\">,<\/span> <span class=\"na\">description<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">\u5546\u54c1\u540d<\/span><span class=\"dl\">\"<\/span> <span class=\"p\">},<\/span>\r\n        <span class=\"na\">modelNumber<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">GraphQLString<\/span><span class=\"p\">,<\/span> <span class=\"na\">description<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">\u578b\u756a<\/span><span class=\"dl\">\"<\/span> <span class=\"p\">},<\/span>\r\n        <span class=\"na\">price<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">GraphQLInt<\/span><span class=\"p\">,<\/span> <span class=\"na\">description<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">\u8ca9\u58f2\u4fa1\u683c<\/span><span class=\"dl\">\"<\/span> <span class=\"p\">},<\/span>\r\n        <span class=\"na\">maker<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Maker<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"na\">resolve<\/span><span class=\"p\">:<\/span> <span class=\"nx\">resolveByParentMakerId<\/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\r\n<span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"nx\">Maker<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">GraphQLObjectType<\/span><span class=\"p\">({<\/span>\r\n    <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">Maker<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"na\">description<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">\u88fd\u9020\u696d\u8005<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"na\">fields<\/span><span class=\"p\">:<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">({<\/span>\r\n        <span class=\"na\">id<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">GraphQLID<\/span> <span class=\"p\">},<\/span>\r\n        <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">GraphQLString<\/span> <span class=\"p\">},<\/span>\r\n        <span class=\"na\">products<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">ProductConnection<\/span> <span class=\"p\">},<\/span>\r\n    <span class=\"p\">}),<\/span>\r\n<span class=\"p\">});<\/span>\r\n\r\n<span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"nx\">Order<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">GraphQLObjectType<\/span><span class=\"p\">({<\/span>\r\n    <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">Order<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"na\">description<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">\u53d7\u6ce8\u60c5\u5831<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"na\">fields<\/span><span class=\"p\">:<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">({<\/span>\r\n        <span class=\"na\">id<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">GraphQLID<\/span> <span class=\"p\">},<\/span>\r\n        <span class=\"na\">orderDate<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">GraphQLInt<\/span><span class=\"p\">,<\/span> <span class=\"na\">description<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">\u53d7\u6ce8\u65e5\u6642(UNIX TIME)<\/span><span class=\"dl\">\"<\/span> <span class=\"p\">},<\/span>\r\n        <span class=\"na\">user<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">User<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"na\">description<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">\u6ce8\u6587\u3057\u305f\u30e6\u30fc\u30b6<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"na\">resolve<\/span><span class=\"p\">:<\/span> <span class=\"nx\">resolveUserByParentId<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"p\">},<\/span>\r\n        <span class=\"na\">products<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">ProductConnection<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"na\">args<\/span><span class=\"p\">:<\/span> <span class=\"nx\">ConnectionArgument<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"na\">description<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">\u6ce8\u6587\u306b\u542b\u307e\u308c\u305f\u5546\u54c1<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"na\">resolve<\/span><span class=\"p\">:<\/span> <span class=\"nx\">resolveProductsByRelatedOrder<\/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\r\n<span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"p\">{<\/span> <span class=\"na\">connectionType<\/span><span class=\"p\">:<\/span> <span class=\"nx\">UserConnection<\/span> <span class=\"p\">}<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">connectionDefinitions<\/span><span class=\"p\">({<\/span>\r\n    <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">User<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"na\">nodeType<\/span><span class=\"p\">:<\/span> <span class=\"nx\">User<\/span><span class=\"p\">,<\/span>\r\n<span class=\"p\">});<\/span>\r\n\r\n<span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"p\">{<\/span> <span class=\"na\">connectionType<\/span><span class=\"p\">:<\/span> <span class=\"nx\">ProductConnection<\/span> <span class=\"p\">}<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">connectionDefinitions<\/span><span class=\"p\">({<\/span>\r\n    <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">Product<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"na\">nodeType<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Product<\/span><span class=\"p\">,<\/span>\r\n<span class=\"p\">});<\/span>\r\n\r\n<span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"p\">{<\/span> <span class=\"na\">connectionType<\/span><span class=\"p\">:<\/span> <span class=\"nx\">MakerConnection<\/span> <span class=\"p\">}<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">connectionDefinitions<\/span><span class=\"p\">({<\/span>\r\n    <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">Maker<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"na\">nodeType<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Maker<\/span><span class=\"p\">,<\/span>\r\n<span class=\"p\">});<\/span>\r\n\r\n<span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"p\">{<\/span> <span class=\"na\">connectionType<\/span><span class=\"p\">:<\/span> <span class=\"nx\">OrderConnection<\/span> <span class=\"p\">}<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">connectionDefinitions<\/span><span class=\"p\">({<\/span>\r\n    <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">Order<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"na\">nodeType<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Order<\/span><span class=\"p\">,<\/span>\r\n<span class=\"p\">});<\/span>\r\n<\/code><\/pre>\n<h5>\u679a\u4e3e\u7c7b\u578b.ts<\/h5>\n<p>\u5728enum-type.ts\u6587\u4ef6\u4e2d\u5b9a\u4e49\u4e86\u679a\u4e3e\u7c7b\u578b\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">GraphQLEnumType<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">graphql<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"nx\">GenderEnum<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">GraphQLEnumType<\/span><span class=\"p\">({<\/span>\r\n    <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">Gender<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"na\">description<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">\u6027\u5225<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"na\">values<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"na\">male<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">value<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">male<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span> <span class=\"na\">description<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">\u7537\u6027<\/span><span class=\"dl\">\"<\/span> <span class=\"p\">},<\/span>\r\n        <span class=\"na\">female<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">value<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">female<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span> <span class=\"na\">description<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">\u5973\u6027<\/span><span class=\"dl\">\"<\/span> <span class=\"p\">},<\/span>\r\n        <span class=\"na\">other<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">value<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">other<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span> <span class=\"na\">description<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">\u305d\u306e\u4ed6<\/span><span class=\"dl\">\"<\/span> <span class=\"p\">},<\/span>\r\n    <span class=\"p\">},<\/span>\r\n<span class=\"p\">});<\/span>\r\n\r\n<span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"nx\">MemberRank<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">GraphQLEnumType<\/span><span class=\"p\">({<\/span>\r\n    <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">MemberRank<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"na\">description<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">\u4f1a\u54e1\u30e9\u30f3\u30af<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"na\">values<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"na\">general<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">value<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">general<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span> <span class=\"na\">description<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">\u4e00\u822c\u4f1a\u54e1<\/span><span class=\"dl\">\"<\/span> <span class=\"p\">},<\/span>\r\n        <span class=\"na\">gold<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">value<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">gold<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span> <span class=\"na\">description<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">\u30b4\u30fc\u30eb\u30c9\u4f1a\u54e1<\/span><span class=\"dl\">\"<\/span> <span class=\"p\">},<\/span>\r\n        <span class=\"na\">platinum<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">value<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">platinum<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span> <span class=\"na\">description<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">\u30d7\u30e9\u30c1\u30ca\u4f1a\u54e1<\/span><span class=\"dl\">\"<\/span> <span class=\"p\">},<\/span>\r\n    <span class=\"p\">},<\/span>\r\n<span class=\"p\">});<\/span>\r\n<\/code><\/pre>\n<h2>Argument\u7684\u5b9a\u4e49<\/h2>\n<p>\u8ba9\u6211\u4eec\u5148\u6765\u5b9e\u73b0\u57fa\u4e8e`args`\u53c2\u6570\u6307\u5b9a\u7684Argument\u7684\u5b9a\u4e49\u3002\u5373\u4f7f\u6307\u5b9a\u4e86\u672a\u5728\u6b64\u5904\u5b9a\u4e49\u7684\u503c\uff0c\u4e5f\u4f1a\u88ab\u5ffd\u7565\u3002<br \/>\n\u4e0b\u9762\u7684\u67e5\u8be2\u4e2d\uff0c\u6307\u5b9a\u4e86`gender: &#8220;male&#8221;`\u7684\u90e8\u5206\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">query<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">users<\/span><span class=\"p\">(<\/span><span class=\"n\">gender<\/span><span class=\"p\">:<\/span> <span class=\"s2\">\"male\"<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n       <span class=\"n\">id<\/span><span class=\"p\">,<\/span> <span class=\"n\">name<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<h5>\u4e89\u8bba.ts<\/h5>\n<p>\u5728argument.ts\u4e2d\uff0c\u6211\u4eec\u7f16\u5199\u4e86Argument\u7684\u7c7b\u578b\u3002\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u53ea\u63cf\u8ff0\u4e86User\u548cProduct\uff0c\u5176\u4ed6\u5185\u5bb9\u88ab\u7701\u7565\u4e86\u3002\u60a8\u53ef\u4ee5\u5728GitHub\u4e0a\u7684\u4ee3\u7801\u4e2d\u67e5\u770b\u6240\u6709\u7684\u5b9a\u4e49\u3002<\/p>\n<p>\u5728\u6b64\uff0c\u6839\u636e\u524d\u9762\u6240\u8ff0\uff0c\u6211\u4eec\u5c06\u5b9a\u4e49\u7684&#8221;Argument&#8221;\u5206\u522b\u8bbe\u7f6e\u7ed9\u5bf9\u5e94\u7684args\u3002<br \/>\n&#8211; UserArgument\u5c06\u8bbe\u7f6e\u7ed9user\u548cusers\u7684args\u3002<br \/>\n&#8211; UserInsertArgument\u5c06\u8bbe\u7f6e\u7ed9createUser\u7684args\u3002<br \/>\n&#8211; UserUpdateArgument\u5c06\u8bbe\u7f6e\u7ed9updateUser\u7684args\u3002<br \/>\n&#8211; ProductArgument\u5c06\u8bbe\u7f6e\u7ed9product\u548cproducts\u7684args\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">GraphQLID<\/span><span class=\"p\">,<\/span> <span class=\"nx\">GraphQLInputObjectType<\/span><span class=\"p\">,<\/span> <span class=\"nx\">GraphQLInt<\/span><span class=\"p\">,<\/span> <span class=\"nx\">GraphQLNonNull<\/span><span class=\"p\">,<\/span> <span class=\"nx\">GraphQLString<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">graphql<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">GenderEnum<\/span><span class=\"p\">,<\/span> <span class=\"nx\">MemberRank<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">.\/enum-type<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">RangeIntType<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">GraphQLInputObjectType<\/span><span class=\"p\">({<\/span>\r\n    <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">RangeInt<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"na\">fields<\/span><span class=\"p\">:<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">({<\/span>\r\n        <span class=\"na\">min<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">GraphQLInt<\/span> <span class=\"p\">},<\/span>\r\n        <span class=\"na\">max<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">GraphQLInt<\/span> <span class=\"p\">},<\/span>\r\n    <span class=\"p\">}),<\/span>\r\n<span class=\"p\">});<\/span>\r\n\r\n<span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"nx\">IdArgument<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"na\">id<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">GraphQLID<\/span> <span class=\"p\">},<\/span>\r\n<span class=\"p\">};<\/span>\r\n\r\n<span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"nx\">ConnectionArgument<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"na\">limit<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">GraphQLInt<\/span> <span class=\"p\">},<\/span>\r\n    <span class=\"na\">offset<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">GraphQLInt<\/span><span class=\"p\">,<\/span> <span class=\"na\">defaultValue<\/span><span class=\"p\">:<\/span> <span class=\"mi\">0<\/span> <span class=\"p\">},<\/span>\r\n<span class=\"p\">};<\/span>\r\n\r\n<span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"nx\">UserArgument<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"p\">...<\/span><span class=\"nx\">IdArgument<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"p\">...<\/span><span class=\"nx\">ConnectionArgument<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">GraphQLString<\/span> <span class=\"p\">},<\/span>\r\n    <span class=\"na\">gender<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">GenderEnum<\/span> <span class=\"p\">},<\/span>\r\n    <span class=\"na\">rank<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">MemberRank<\/span> <span class=\"p\">},<\/span>\r\n<span class=\"p\">};<\/span>\r\n\r\n<span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"nx\">UserInsertArgument<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">GraphQLInputObjectType<\/span><span class=\"p\">({<\/span>\r\n    <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">UserInputArgument<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"na\">fields<\/span><span class=\"p\">:<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">({<\/span>\r\n        <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">GraphQLNonNull<\/span><span class=\"p\">(<\/span><span class=\"nx\">GraphQLString<\/span><span class=\"p\">)<\/span> <span class=\"p\">},<\/span>\r\n        <span class=\"na\">gender<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">GraphQLNonNull<\/span><span class=\"p\">(<\/span><span class=\"nx\">GraphQLString<\/span><span class=\"p\">)<\/span> <span class=\"p\">},<\/span>\r\n        <span class=\"na\">rank<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">GraphQLString<\/span> <span class=\"p\">},<\/span>\r\n    <span class=\"p\">}),<\/span>\r\n<span class=\"p\">});<\/span>\r\n\r\n<span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"nx\">UserUpdateArgument<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">GraphQLInputObjectType<\/span><span class=\"p\">({<\/span>\r\n    <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">UserUpdateArgument<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"na\">fields<\/span><span class=\"p\">:<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">({<\/span>\r\n        <span class=\"na\">id<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">GraphQLNonNull<\/span><span class=\"p\">(<\/span><span class=\"nx\">GraphQLID<\/span><span class=\"p\">)<\/span> <span class=\"p\">},<\/span>\r\n        <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">GraphQLString<\/span> <span class=\"p\">},<\/span>\r\n        <span class=\"na\">gender<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">GraphQLString<\/span> <span class=\"p\">},<\/span>\r\n        <span class=\"na\">rank<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">GraphQLString<\/span> <span class=\"p\">},<\/span>\r\n    <span class=\"p\">}),<\/span>\r\n<span class=\"p\">});<\/span>\r\n\r\n<span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"nx\">ProductArgment<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"p\">...<\/span><span class=\"nx\">IdArgument<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"p\">...<\/span><span class=\"nx\">ConnectionArgument<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">GraphQLString<\/span> <span class=\"p\">},<\/span>\r\n    <span class=\"na\">modelNumber<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">GraphQLString<\/span> <span class=\"p\">},<\/span>\r\n    <span class=\"na\">price<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">RangeIntType<\/span> <span class=\"p\">},<\/span>\r\n<span class=\"p\">};<\/span>\r\n<\/code><\/pre>\n<h2>\u89e3\u51b3\u51fd\u6570\u7684\u5b9e\u73b0<\/h2>\n<p>\u6211\u5c06\u5b9e\u73b0\u4e4b\u524d\u5b9a\u4e49\u7684\u6a21\u5f0f\u4e2d\u8bbe\u7f6e\u7684resolve\u51fd\u6570\u3002\u8fd9\u4e2aresolve\u51fd\u6570\u5c06\u4e0eMySQL\u8fdb\u884c\u67e5\u8be2\uff0c\u5e76\u5c06\u5176\u8fd4\u56de\u503c\u4f5c\u4e3a\u54cd\u5e94\u3002\u7531\u4e8e\u540e\u7aef\u6570\u636e\u5e93\u662fMySQL\uff0c\u6240\u4ee5\u4ee5\u4e0b\u662f\u5904\u7406\u65b9\u5f0f\u3002<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u6839\u636eargs\u7684\u5185\u5bb9\u751f\u6210\u9002\u7528\u4e8eMySQL\u7684SQL\u8bed\u53e5\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u8fdb\u884cMySQL\u67e5\u8be2\uff08\u53c2\u8003\u3001\u66f4\u65b0\uff09\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u5c06\u67e5\u8be2\u7ed3\u679c\u9002\u5e94GraphQL\u6a21\u5f0f\u8fdb\u884c\u5904\u7406\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\u4f5c\u4e3a\u8fd4\u56de\u503c\u8fd4\u56de\u3002<\/ol>\n<p>\u5f53\u7136\u7684\u662f\uff0c\u5982\u679c\u540e\u7aef\u6570\u636e\u5b58\u50a8\u65b9\u5f0f\u4e0d\u540c\uff0c\u5c31\u9700\u8981\u7f16\u5199\u76f8\u5e94\u7684\u5904\u7406\u65b9\u6cd5\u3002\u65e0\u8bba\u5982\u4f55\uff0cresolve\u51fd\u6570\u5c06\u6267\u884c\u6570\u636e\u7684\u83b7\u53d6\u548c\u66f4\u65b0\u64cd\u4f5c\uff0c\u5e76\u4ee5\u7b26\u5408\u6a21\u5f0f\u5b9a\u4e49\u7684\u683c\u5f0f\u8fd4\u56de\u503c\u3002<\/p>\n<p>resolve\u51fd\u6570\u63a5\u53d7\u4e09\u4e2a\u53c2\u6570\uff0c\u5982\u4e0b\u6240\u793a\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">function<\/span> <span class=\"nx\">resolveUsers<\/span><span class=\"p\">(<\/span><span class=\"nx\">parent<\/span><span class=\"p\">:<\/span> <span class=\"kr\">any<\/span><span class=\"p\">,<\/span> <span class=\"nx\">args<\/span><span class=\"p\">:<\/span> <span class=\"kr\">any<\/span><span class=\"p\">,<\/span> <span class=\"nx\">context<\/span><span class=\"p\">:<\/span> <span class=\"kr\">any<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">parent: \u89aa\u3068\u306a\u3063\u3066\u3044\u308bresolve\u95a2\u6570\u306e\u623b\u308a\u5024<\/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\">args: \u30e6\u30fc\u30b6\u304cGraphQL\u306e\u5f15\u6570\u306e\u5024<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">context: graphqlHTTP()\u306econtext\u3067\u6307\u5b9a\u3057\u305f\u5024<\/ul>\n<p>\u8ba9\u6211\u4eec\u8003\u8651\u4e00\u4e2a\u5173\u4e8e\u4ea7\u54c1\u4fe1\u606f\u67e5\u8be2\u7684\u4f8b\u5b50\u3002\u5728\u4e0b\u9762\u7684\u67e5\u8be2\u4e2d\uff0c\u6211\u4eec\u4ee5id: 312\u4f5c\u4e3a\u53c2\u6570\uff0c\u8bf7\u6c42\u76f8\u5e94\u4ea7\u54c1\u7684id\u3001\u540d\u79f0\u548c\u5236\u9020\u516c\u53f8\u7684\u524d\u7f6e\u6761\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">query<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">product<\/span><span class=\"p\">(<\/span><span class=\"n\">id<\/span><span class=\"p\">:<\/span> <span class=\"mi\">312<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">id<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"n\">name<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"n\">maker<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"n\">name<\/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>\u6839\u636e\u524d\u666f\u7684\u89c4\u5212\uff0c\u6211\u4eec\u8bbe\u5b9a\u4ea7\u54c1\u5982\u4e0b\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nx\">product<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nl\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Product<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"nx\">args<\/span><span class=\"p\">:<\/span> <span class=\"nx\">IdArgument<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"nx\">resolve<\/span><span class=\"p\">:<\/span> <span class=\"nx\">resolveProduct<\/span><span class=\"p\">,<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">Product<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">GraphQLObjectType<\/span><span class=\"p\">({<\/span>\r\n    <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">Product<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"na\">description<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">\u5546\u54c1<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"na\">fields<\/span><span class=\"p\">:<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">({<\/span>\r\n        <span class=\"na\">id<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">GraphQLID<\/span> <span class=\"p\">},<\/span>\r\n        <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">GraphQLString<\/span><span class=\"p\">,<\/span> <span class=\"na\">description<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">\u5546\u54c1\u540d<\/span><span class=\"dl\">\"<\/span> <span class=\"p\">},<\/span>\r\n        <span class=\"na\">modelNumber<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">GraphQLString<\/span><span class=\"p\">,<\/span> <span class=\"na\">description<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">\u578b\u756a<\/span><span class=\"dl\">\"<\/span> <span class=\"p\">},<\/span>\r\n        <span class=\"na\">price<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">GraphQLInt<\/span><span class=\"p\">,<\/span> <span class=\"na\">description<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">\u8ca9\u58f2\u4fa1\u683c<\/span><span class=\"dl\">\"<\/span> <span class=\"p\">},<\/span>\r\n        <span class=\"na\">maker<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Maker<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"na\">resolve<\/span><span class=\"p\">:<\/span> <span class=\"nx\">resolveMakerByParentMakerId<\/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<\/code><\/pre>\n<p>\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5c06\u8c03\u7528resolveProduct()\u548cresolveMakerByParentMakerId()\u8fd9\u4e24\u4e2a\u51fd\u6570\u3002\u540e\u8005\u662f\u5d4c\u5957\u5728Product\u4e2d\u7684\u3002\u53e6\u5916\uff0c\u6211\u5df2\u5728\u6700\u521d\u7684graphql.ts\u6587\u4ef6\u4e2d\u8bbe\u7f6e\u4e86\u4ee5\u4e0b\u4e0a\u4e0b\u6587\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nx\">graphqlHTTP<\/span><span class=\"p\">(()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">({<\/span>\r\n    <span class=\"na\">graphiql<\/span><span class=\"p\">:<\/span> <span class=\"kc\">true<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"nx\">schema<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"na\">context<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">db<\/span> <span class=\"p\">},<\/span>\r\n<span class=\"p\">}));<\/span>\r\n<\/code><\/pre>\n<p>\u56e0\u6b64\uff0c\u4f20\u9012\u7ed9resolve\u51fd\u6570\u7684\u4e09\u4e2a\u53c2\u6570\u7684\u503c\u5206\u522b\u5982\u4e0b\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">resolveProduct<\/ul>\n<\/li>\n<\/ul>\n<p>parent: \u306a\u3057<br \/>\nargs: { id: 312 }<br \/>\ncontext: { db: db },<\/p>\n<p>resolveMakerByParentMakerId<\/p>\n<p>parent: resolveProduct\u306e\u623b\u308a\u5024<br \/>\nargs: \u306a\u3057<br \/>\ncontext: { db: db }<\/p>\n<p>\u5728\u4e0a\u4e0b\u6587\u4e2d\uff0c\u8a2d\u5b9a\u7684{db}\u5c07\u76f4\u63a5\u50b3\u5165\u3002\u56e0\u6b64\uff0c\u6211\u5011\u61c9\u8a72\u5728\u4e00\u958b\u59cb\u5c31\u5c07\u5171\u7528\u65bc\u6240\u6709\u89e3\u6790\u51fd\u6578\u7684\u503c\u901a\u904e\u4e0a\u4e0b\u6587\u50b3\u905e\u3002<\/p>\n<p>\u8bf7\u6ce8\u610f\uff0c\u7531\u4e8e\u9700\u8981\u8fdc\u79bbGraphQL\u7684\u4ecb\u7ecd\u5e76\u4e14\u6d89\u53ca\u6570\u636e\u5e93\u67e5\u8be2\u7b49\u5185\u5bb9\uff0c\u56e0\u6b64\u672c\u6587\u7701\u7565\u4e86\u5bf9resolve\u51fd\u6570\u7684\u5177\u4f53\u63cf\u8ff0\u3002\u5efa\u8bae\u60a8\u53c2\u8003Github\u4e0a\u7684\u4ee3\u7801\u3002<\/p>\n<h1>\u6700\u7ec8<\/h1>\n<p>\u6211\u7528Node.js\u5b9e\u73b0\u4e86GraphQL\u7684API\uff0c\u5e76\u5c06\u4ee3\u7801\u4e0a\u4f20\u5230\u4e86Github\uff08https:\/\/github.com\/hiroyky\/graphql_api_sample\uff09\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9996\u5148 \u6211\u5c06\u5728Node.js\u4e2d\u5b9e\u73b0GraphQL API\u3002\u5173\u4e8eGraphQL\u7684\u6982\u8ff0\u4ee5\u53ca\u5ba2\u6237\u7aef\u6a21\u5f0f\u7684\u63cf\u8ff0\uff0c\u6211\u770b\u5230\u4e86 [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-47851","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u4f7f\u7528Node.js\u5b9e\u73b0GraphQL API - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u4f7f\u7528node-js\u5b9e\u73b0graphql-api\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u4f7f\u7528Node.js\u5b9e\u73b0GraphQL API\" \/>\n<meta property=\"og:description\" content=\"\u9996\u5148 \u6211\u5c06\u5728Node.js\u4e2d\u5b9e\u73b0GraphQL API\u3002\u5173\u4e8eGraphQL\u7684\u6982\u8ff0\u4ee5\u53ca\u5ba2\u6237\u7aef\u6a21\u5f0f\u7684\u63cf\u8ff0\uff0c\u6211\u770b\u5230\u4e86 [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u4f7f\u7528node-js\u5b9e\u73b0graphql-api\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2022-11-08T22:35:29+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-05-03T22:29:15+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d816f913a08637a6ad2d4\/11-0.png\" \/>\n<meta name=\"author\" content=\"\u96c5, \u609f\" 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