{"id":47872,"date":"2023-05-01T07:08:14","date_gmt":"2024-03-07T11:19:58","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8rdb%e4%bd%9c%e4%b8%baamplify-graphql-api%e7%9a%84%e6%95%b0%e6%8d%ae%e6%ba%90%e3%80%82\/"},"modified":"2024-04-30T02:07:01","modified_gmt":"2024-04-29T18:07:01","slug":"%e4%bd%bf%e7%94%a8rdb%e4%bd%9c%e4%b8%baamplify-graphql-api%e7%9a%84%e6%95%b0%e6%8d%ae%e6%ba%90%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8rdb%e4%bd%9c%e4%b8%baamplify-graphql-api%e7%9a%84%e6%95%b0%e6%8d%ae%e6%ba%90%e3%80%82\/","title":{"rendered":"\u4f7f\u7528RDB\u4f5c\u4e3aAmplify GraphQL API\u7684\u6570\u636e\u6e90"},"content":{"rendered":"<p>\u8fd9\u7bc7\u6587\u7ae0\u662f\u201cAWS Amplify Advent Calendar 2020\u201d\u7684\u7b2c17\u5929\u3002<br \/>\n\uff08\u795d\u8d1f\u8d23\u7b2c16\u5929\u7684Dyson\u751f\u65e5\u5feb\u4e50\uff09<\/p>\n<h2>\u7ecf\u8fc7\/ \u7ecf\u5386<\/h2>\n<p>\u8fd9\u6b21\u6211\u5c06\u64b0\u5199\u4e00\u7bc7\u5173\u4e8eAWS Amplify\u7684GraphQL API\u7684\u6587\u7ae0\u3002<\/p>\n<p>\u5728 Amplify\u4e2d\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528GraphQL API\uff0c\u4f46\u6211\u8ba4\u4e3a\u5927\u591a\u6570\u4eba\u5c06DynamoDB\u7528\u4f5c\u5176\u540e\u7aef\u6570\u636e\u6e90\u3002<\/p>\n<p>\u5b9e\u9645\u4e0a\uff0c\u5927\u5bb6\u77e5\u9053\u8fd9\u4e2a GraphQL API \u7684\u6570\u636e\u6e90\u4e0d\u4ec5\u53ef\u4ee5\u662f DynamoDB\uff0c\u8fd8\u53ef\u4ee5\u6307\u5b9a\u4e3a Aurora Serverless \u4f5c\u4e3a RDB \u5417\uff1f<\/p>\n<p>\u6269\u5c55\u6587\u6863 &gt; \u547d\u4ee4\u884c\u754c\u9762 &gt; API\uff08Graph QL\uff09 &gt; \u5173\u7cfb\u578b\u6570\u636e\u5e93<\/p>\n<p>\u5c31\u6211\u8fd9\u4e2a\u5728RDB\u4e0a\u6210\u957f\u8d77\u6765\u7684\u4eba\u6765\u8bf4\uff0c\u6211\u5bf9\u6b64\u975e\u5e38\u611f\u5174\u8da3\u3002\u7136\u800c\uff0c\u5728\u4e0a\u8ff0\u94fe\u63a5\u7684\u793a\u4f8b\u4e2d\uff0c\u53ea\u63d0\u5230\u4e86\u5bf9\u4e00\u4e2a\u8868\u8fdb\u884cMutation\u7684\u4f8b\u5b50\u3002(\u622a\u6b62\u52302020\u5e7412\u670816\u65e5)<\/p>\n<p>\u6240\u4ee5\uff0c\u672c\u6587\u7684\u5185\u5bb9\u662f\u786e\u8ba4\u662f\u5426\u53ef\u4ee5\u5b9e\u73b0\u5728\u5173\u7cfb\u6570\u636e\u5e93\u4e2d\u7ecf\u5e38\u4f7f\u7528\u7684\u57fa\u672c\u529f\u80fd\uff0c\u4f8b\u5982SQL\u7ea6\u675f\u548c\u591a\u8868\u8fde\u63a5\u7b49\u3002<\/p>\n<h2>\u505a\u4e86\u8c03\u67e5<\/h2>\n<h3>\u9996\u5148\u9700\u8981\u8fdb\u884c\u73af\u5883\u7684\u5efa\u7acb\u3002<\/h3>\n<p>\u5728\u67e5\u770b\u4ee5\u4e0a\u94fe\u63a5\u7684\u540c\u65f6\uff0c\u9996\u5148\u6211\u642d\u5efa\u4e86\u73af\u5883\u3002<\/p>\n<p>\u4f5c\u70ba\u624b\u7e8c\uff0c\u9996\u5148\u9700\u8981\u4e8b\u5148\u5275\u5efa Aurora Serverless \u7684 DB \u96c6\u7fa4\uff0c\u4e26\u5275\u5efa\u8981\u8a2a\u554f\u7684\u8cc7\u6599\u8868\u3002<\/p>\n<p>\u5982\u679c\u4f7f\u7528 DynamoDB\uff0c\u53ea\u9700\u521b\u5efa GraphQL schema\uff0c\u7136\u540e\u4f7f\u7528 Amplify CLI \u6267\u884c amplify push\uff0c\u5373\u53ef\u81ea\u52a8\u521b\u5efa\u6570\u636e\u8868\u3002\u4f46\u5982\u679c\u4f7f\u7528 RDB\uff08Aurora Serverless\uff09\uff0c\u7531\u4e8e Amplify CLI \u4e0d\u4f1a\u521b\u5efa\u6570\u636e\u8868\uff08\u622a\u81f32020\u5e7412\u670816\u65e5\uff09\uff0c\u56e0\u6b64\u9700\u8981\u624b\u52a8\u521b\u5efa\u3002<\/p>\n<p>\u8fd9\u6b21\u6211\u521b\u5efa\u4e86\u4e00\u4e2a\u4e0e\u94fe\u63a5\u6307\u5357\u4e2d\u76f8\u540c\u540d\u79f0\u7684\u6570\u636e\u5e93\u96c6\u7fa4\u548c\u8868\u3002<\/p>\n<ul class=\"post-ul\">\u30c6\u30fc\u30d6\u30eb\u4f5c\u6210\u6642\u306b\u5b9f\u884c\u3057\u305fSQL\u6587<\/ul>\n<pre class=\"post-pre\"><code><span class=\"k\">CREATE<\/span> <span class=\"k\">DATABASE<\/span> <span class=\"n\">MarketPlace<\/span><span class=\"p\">;<\/span>\r\n<span class=\"n\">USE<\/span> <span class=\"n\">MarketPlace<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">CREATE<\/span> <span class=\"k\">TABLE<\/span> <span class=\"n\">Customers<\/span> <span class=\"p\">(<\/span>\r\n  <span class=\"n\">id<\/span> <span class=\"nb\">int<\/span><span class=\"p\">(<\/span><span class=\"mi\">11<\/span><span class=\"p\">)<\/span> <span class=\"k\">NOT<\/span> <span class=\"k\">NULL<\/span> <span class=\"k\">PRIMARY<\/span> <span class=\"k\">KEY<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"n\">name<\/span> <span class=\"nb\">varchar<\/span><span class=\"p\">(<\/span><span class=\"mi\">50<\/span><span class=\"p\">)<\/span> <span class=\"k\">NOT<\/span> <span class=\"k\">NULL<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"n\">phone<\/span> <span class=\"nb\">varchar<\/span><span class=\"p\">(<\/span><span class=\"mi\">50<\/span><span class=\"p\">)<\/span> <span class=\"k\">NOT<\/span> <span class=\"k\">NULL<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"n\">email<\/span> <span class=\"nb\">varchar<\/span><span class=\"p\">(<\/span><span class=\"mi\">50<\/span><span class=\"p\">)<\/span> <span class=\"k\">NOT<\/span> <span class=\"k\">NULL<\/span>\r\n<span class=\"p\">);<\/span>\r\n<span class=\"k\">CREATE<\/span> <span class=\"k\">TABLE<\/span> <span class=\"n\">Orders<\/span> <span class=\"p\">(<\/span>\r\n  <span class=\"n\">id<\/span> <span class=\"nb\">int<\/span><span class=\"p\">(<\/span><span class=\"mi\">11<\/span><span class=\"p\">)<\/span> <span class=\"k\">NOT<\/span> <span class=\"k\">NULL<\/span> <span class=\"k\">PRIMARY<\/span> <span class=\"k\">KEY<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"n\">customerId<\/span> <span class=\"nb\">int<\/span><span class=\"p\">(<\/span><span class=\"mi\">11<\/span><span class=\"p\">)<\/span> <span class=\"k\">NOT<\/span> <span class=\"k\">NULL<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"n\">orderDate<\/span> <span class=\"nb\">datetime<\/span> <span class=\"k\">DEFAULT<\/span> <span class=\"k\">CURRENT_TIMESTAMP<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"k\">KEY<\/span> <span class=\"nv\">`customerId`<\/span> <span class=\"p\">(<\/span><span class=\"nv\">`customerId`<\/span><span class=\"p\">),<\/span>\r\n  <span class=\"k\">CONSTRAINT<\/span> <span class=\"nv\">`customer_orders_ibfk_1`<\/span> <span class=\"k\">FOREIGN<\/span> <span class=\"k\">KEY<\/span> <span class=\"p\">(<\/span><span class=\"nv\">`customerId`<\/span><span class=\"p\">)<\/span> <span class=\"k\">REFERENCES<\/span> <span class=\"nv\">`Customers`<\/span> <span class=\"p\">(<\/span><span class=\"nv\">`id`<\/span><span class=\"p\">)<\/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\/657d81eb913a08637a6ae6d0\/16-0.png\" alt=\"image.png\" \/><\/div>\n<p>\u5728\u672c\u5730\u73af\u5883\u7684\u4e2a\u4eba\u7535\u8111\u4e0a\uff0c\u6309\u7167\u4ee5\u4e0b\u6b65\u9aa4\u6267\u884c\u65f6\uff0c\u524d\u9762\u63d0\u5230\u7684\u8868\u5df2\u7ecf\u521b\u5efa\u597d\u3002<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u5207\u6362\u5230\u5de5\u4f5c\u76ee\u5f55<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u4f7f\u7528amplify init\u5bf9Amplify CLI\u8fdb\u884c\u521d\u59cb\u5316\uff08\u6839\u636e\u9700\u8981\u521b\u5efaAWS CLI\u914d\u7f6e\u6587\u4ef6\uff09<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u4f7f\u7528amplify add api\u6dfb\u52a0Amplify\u7684GraphQL API\u529f\u80fd<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u4f7f\u7528amplify api add-graphql-datasource\u5c06\u4e4b\u524d\u521b\u5efa\u7684Aurora Serverless DB\u96c6\u7fa4\u6ce8\u518c\u4e3a\u6570\u636e\u6e90<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\u4f7f\u7528amplify push\u5728AWS\u4e0a\u90e8\u7f72GraphQL API<\/ol>\n<p>\u6ce8\u610f\uff1a\u8bf7\u53c2\u8003\u94fe\u63a5\u4e2d\u7684\u6307\u5357\u83b7\u53d6\u8be6\u7ec6\u7684\u6b65\u9aa4\u3002<\/p>\n<p>\u7b49\u5f85\u90e8\u7f72\u5b8c\u6210\u3002<\/p>\n<h3>\u88ab\u5236\u9020\u7684\u4e1c\u897f de<\/h3>\n<p>\u5f53amplify push\u5b8c\u6210\u540e\uff0cGraphQL API\u5c06\u5728AWS\u4e0a\u90e8\u7f72\uff0c\u5e76\u5728\u672c\u5730PC\u4e0a\u521b\u5efa\u4ee5\u4e0b\u7c7b\u4f3c\u7684\u5185\u5bb9\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d81eb913a08637a6ae6d0\/23-1.png\" alt=\"image.png\" \/><\/div>\n<p>\u4ed6\u8fd8\u4f1a\u4e3a\u60a8\u521b\u5efa\u5728\u90e8\u7f72\u65f6\u6267\u884c\u7684CloudFormation\u5806\u6808\u5b9a\u4e49\uff0c\u4ee5\u53ca\u4f7f\u7528DynamoDB\u65f6\u524d\u7aef\u53ef\u4ee5\u4f7f\u7528\u7684GraphQL\u6e90\u4ee3\u7801\u7684\u6a21\u677f\u3002\uff08\u5728\u8fd9\u91cc\u6211\u7701\u7565\u4e86\u4e00\u4e9b\u5185\u5bb9\uff09<\/p>\n<h3>\u4f7f\u7528 GraphQL API \u5411 Aurora Serverless \u6ce8\u518c\u6570\u636e\u3002<\/h3>\n<p>\u6211\u4eec\u5c06\u4f7f\u7528\u521b\u5efa\u7684GraphQL API\u5c06\u6570\u636e\u63d2\u5165\u5230Customers\u8868\u4e2d\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d81eb913a08637a6ae6d0\/27-0.png\" alt=\"image.png\" \/><\/div>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d81eb913a08637a6ae6d0\/28-0.png\" alt=\"image.png\" \/><\/div>\n<h3>SQL\u7684\u7ea6\u675f\u6761\u4ef6\u548c\u9ed8\u8ba4\u503c\u7684\u884c\u4e3a<\/h3>\n<h4>SQL\u7ea6\u675f &#8211; \u4e3b\u952e\u7ea6\u675f<\/h4>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d81eb913a08637a6ae6d0\/31-0.png\" alt=\"image.png\" \/><\/div>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d81eb913a08637a6ae6d0\/32-0.png\" alt=\"image.png\" \/><\/div>\n<p>\u5982\u679c\u9047\u5230PK\u7ea6\u675f\u95ee\u9898\uff0c\u8bb0\u5f55\u5c06\u4e0d\u4f1a\u88ab\u521b\u5efa\uff0c\u800c&#8221;data&#8221;\u90e8\u5206\u5c06\u8fd4\u56de\u4e3a\u7a7a\u7684\u884c\u4e3a\u3002<\/p>\n<h4>SQL \u7ea6\u675f &#8211; \u975e\u7a7a\u7ea6\u675f<\/h4>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d81eb913a08637a6ae6d0\/35-0.png\" alt=\"image.png\" \/><\/div>\n<p>\u636e\u663e\u793a\uff0c\u5728GraphQL\u7684\u9a8c\u8bc1\u5904\u7406\u4e2d\u51fa\u73b0\u4e86\u9519\u8bef\u3002\u4e0ePK\u7ea6\u675f\u7c7b\u4f3c\uff0c\u6570\u636e\u90e8\u5206\u8fd4\u56de\u4e3anull\uff0c\u8868\u660eMutation\u5904\u7406\u672a\u5b8c\u6210\u3002\u7136\u800c\uff0c\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5173\u4e8e\u9519\u8bef\u663e\u793a\u4e0e\u5426\u7684\u884c\u4e3a\u53ef\u80fd\u5b58\u5728\u5dee\u5f02\u3002<\/p>\n<h4>SQL\u7ea6\u675f-\u5916\u952e\u7ea6\u675f<\/h4>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d81eb913a08637a6ae6d0\/38-0.png\" alt=\"image.png\" \/><\/div>\n<p>\u5f53\u67e5\u770b Aurora Serverless \u65f6\uff0c\u53d1\u73b0 Orders \u8868\u4e2d\u6ca1\u6709\u6570\u636e\u3002<br \/>\n\u7c7b\u4f3c\u4e8e\u4e3b\u952e\u7ea6\u675f\uff08PK\uff09\u4e00\u6837\uff0c\u5982\u679c\u9047\u5230\u5916\u952e\u7ea6\u675f\uff08FK\uff09\uff0c\u5219\u4e0d\u4f1a\u521b\u5efa\u8bb0\u5f55\uff0c\u5e76\u4e14\u8fd4\u56de\u7684\u6570\u636e\u90e8\u5206\u5c06\u4e3a null\u3002<\/p>\n<h4>\u9ed8\u8ba4\u503c<\/h4>\n<p>\u6700\u540e\uff0c\u6211\u4f1a\u786e\u8ba4\u4e00\u4e0b\u9ed8\u8ba4\u503c\u3002<br \/>\n\uff08\u4e0d\u6d89\u53ca\u5176\u4ed6SQL\u7ea6\u675f\u7684\u8c03\u67e5\u5bf9\u8c61\u3002\uff09<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d81eb913a08637a6ae6d0\/42-0.png\" alt=\"image.png\" \/><\/div>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d81eb913a08637a6ae6d0\/43-0.png\" alt=\"image.png\" \/><\/div>\n<p>\u5728\u8fd9\u91cc\u6267\u884c\u7684SQL\u7ea6\u675f\u548c\u9ed8\u8ba4\u503c\u7684\u786e\u8ba4\u5de5\u4f5c\u662f\u5f02\u5e38\u7684\u3002<\/p>\n<h3>\u83b7\u53d6\u4e24\u4e2a\u8868\u7684JOIN\u7ed3\u679c<\/h3>\n<p>\u8ba9\u6211\u4eec\u6765\u8003\u8651\u4e00\u4e0b\u4e24\u4e2a\u8868JOIN\u7684\u7ed3\u679c\u5982\u4f55\u663e\u793a\u3002<\/p>\n<p>\u6839\u636e\u524d\u8ff0\uff0c\u901a\u8fc7Amplify CLI\u521b\u5efa\u7684GraphQL\u6a21\u5f0f\u548c\u89e3\u6790\u5668\uff0c\u53ef\u4ee5\u770b\u51fa\uff0c\u867d\u7136\u5b58\u5728\u6d89\u53caCRUD\u7684\u64cd\u4f5c\u9488\u5bf9\u4e00\u4e2a\u8868\uff0c\u4f46\u6ca1\u6709\u627e\u5230\u652f\u6301\u591a\u8868JOIN\u7684\u64cd\u4f5c\u3002\u56e0\u6b64\uff0c\u5982\u679c\u9700\u8981\u81ea\u5df1\u624b\u52a8JOIN GraphQL API\u7684\u7ed3\u679c\uff0c\u5219\u9700\u8981\u8fdb\u884c\u989d\u5916\u7684\u9002\u914d\uff0c\u4ee5\u901a\u8fc7GraphQL API\u83b7\u53d6JOIN\u7684\u7ed3\u679c\u3002<\/p>\n<p>\u6839\u636e\u8c03\u67e5\uff0c\u4f3c\u4e4e\u9700\u8981\u989d\u5916\u521b\u5efa\u6a21\u5f0f\u548c\u89e3\u6790\u5668\u3002<\/p>\n<p>\u53c2\u8003\u94fe\u63a5\uff08\u82f1\u6587\uff09<\/p>\n<p>\u8fd9\u6b21\u6211\u4eec\u7701\u7565\u4e86\u8c03\u67e5\uff0c\u4f46\u662f\u4e0b\u4e00\u6b21\u6211\u60f3\u6df1\u5165\u63a2\u8ba8\u8fd9\u4e2a\u95ee\u9898\uff0c\u5305\u62ec VTL \u7684\u5199\u4f5c\u65b9\u5f0f\uff0c\u8bf7\u52a1\u5fc5\u5173\u6ce8\u3002<\/p>\n<h2>\u603b\u7ed3<\/h2>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u6309\u7167\u6587\u4ef6\u7684\u63cf\u8ff0\uff0c\u786e\u5b9e\u53ef\u4ee5\u901a\u8fc7 Amplify CLI \u521b\u5efa\u4e00\u4e2a\u4f7f\u7528 RDB\uff08Aurora Serverless\uff09\u4f5c\u4e3a\u6570\u636e\u6e90\u7684 GraphQL API\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>\u53ef\u4ee5\u786e\u8ba4\u80fd\u591f\u6ee1\u8db3 RDB \u7684\u529f\u80fd\uff0c\u4f8b\u5982 SQL 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