{"id":47736,"date":"2023-09-01T16:48:08","date_gmt":"2023-08-19T12:16:29","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e8%ae%a9%e6%88%91%e4%bb%ac%e5%b0%9d%e8%af%95%e4%bd%bf%e7%94%a8graphql%e8%bf%9b%e8%a1%8c%e5%ae%9e%e7%8e%b0%e3%80%82\/"},"modified":"2024-04-30T21:06:33","modified_gmt":"2024-04-30T13:06:33","slug":"%e8%ae%a9%e6%88%91%e4%bb%ac%e5%b0%9d%e8%af%95%e4%bd%bf%e7%94%a8graphql%e8%bf%9b%e8%a1%8c%e5%ae%9e%e7%8e%b0%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e8%ae%a9%e6%88%91%e4%bb%ac%e5%b0%9d%e8%af%95%e4%bd%bf%e7%94%a8graphql%e8%bf%9b%e8%a1%8c%e5%ae%9e%e7%8e%b0%e3%80%82\/","title":{"rendered":"\u8ba9\u6211\u4eec\u5c1d\u8bd5\u4f7f\u7528GraphQL\u8fdb\u884c\u5b9e\u73b0"},"content":{"rendered":"

\u4f60\u597d\u3002\u4eca\u5929\u662f OPENLOGI \u8282\u65e5\u65e5\u5386\u7684\u7b2c\u56db\u5929\u3002<\/p>\n

\u6211\u5e73\u65f6\u8d1f\u8d23\u4ed3\u5e93\u7ba1\u7406\u7cfb\u7edf\uff08WMS\uff09\u7684\u5f00\u53d1\u3002
\n\u8fd9\u6b21\u548c\u7269\u6d41\u5b8c\u5168\u65e0\u5173\uff0c\u4f46\u662f\u6211\u7528GraphQL\u6765\u5b9e\u73b0\u4e86\u4e00\u4e2a\u5185\u90e8\u7cfb\u7edf\uff0c\u6240\u4ee5\u6211\u4f1a\u5199\u4e00\u4e9b\u5173\u4e8eGraphQL\u7684\u5185\u5bb9\u3002<\/p>\n

2015\u5e74\uff0cFacebook\u53d1\u5e03\u4e86GraphQL\u5df2\u7ecf\u8fc7\u53bb\u4e86\u4e24\u5e74\u3002\u6211\u8bb0\u5f97\u5f53\u65f6\u5927\u5bb6\u90fd\u611f\u5230\u9707\u60ca\uff0c\u4f46\u73b0\u5728\u770b\u6765\uff0c\u5b83\u4f3c\u4e4e\u8fd8\u6ca1\u6709\u6210\u4e3a\u6f6e\u6d41\u3002<\/p>\n

\u6700\u8fd1\uff0c\u5728\u8d8a\u6765\u8d8a\u591a\u7684\u670d\u52a1\u4e2d\u5f00\u59cb\u9010\u6e10\u4f7f\u7528GraphQL\u4f5c\u4e3aAPI\uff0cGithub\u4e5f\u4e0d\u4f8b\u5916\u3002\u867d\u7136GraphQL\u7684\u6982\u5ff5\u9010\u6e10\u88ab\u4eba\u4eec\u6240\u719f\u77e5\uff0c\u4f46\u662f\u5b9e\u9645\u7684\u5b9e\u73b0\u65b9\u5f0f\u548c\u64cd\u4f5c\u5374\u53ea\u6709\u5c11\u6570\u4eba\u771f\u6b63\u4e86\u89e3\u3002\u8fd9\u8ba9\u4eba\u8ba4\u4e3aGraphQL\u7684\u95e8\u69db\u6bd4\u8f83\u9ad8\u3002\u56e0\u6b64\uff0c\u5e0c\u671b\u80fd\u591f\u6709\u4e2a\u7b80\u5355\u6613\u61c2\u7684\u8bb2\u89e3\uff0c\u544a\u8bc9\u5927\u5bb6\u201c\u5982\u4f55\u53bb\u5b9e\u73b0GraphQL\u201d\u3002<\/p>\n

\u5173\u4e8eGraphQL\u672c\u8eab\uff0c\u6211\u8ba4\u4e3a\u60a8\u53ef\u4ee5\u53c2\u8003\u300aGraphQL\u5165\u95e8\u2014\u2014\u4e00\u4e2a\u4ee4\u4eba\u613f\u610f\u4f7f\u7528GraphQL\u7684\u4f18\u79c0\u6587\u7ae0\u300b\u3002<\/p>\n

\u65e0\u8bba\u5982\u4f55\uff0c\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5c06\u5927\u81f4\u89e3\u91ca\u5177\u4f53\u7684\u5b9e\u65bd\u65b9\u6cd5\u3002\uff08\u672c\u6587\u4e0d\u6d89\u53caGraphQL\u7684\u597d\u5904\u3002\uff09<\/p>\n

\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8<\/div>\n

\u597d\u7684\u3002\u542c\u63cf\u8ff0\u7136\u540e\u63d0\u95ee\u83b7\u53d6\u4fe1\u606f\u7684\u65b9\u5f0f\u3002\u5e94\u8be5\u600e\u4e48\u505a\u5462\uff1f<\/p>\n

\u51c6\u5907\u6750\u6599<\/h2>\n

\u4f60\u53ef\u4ee5\u4f7f\u7528\u4efb\u4f55\u8bed\u8a00\uff0c\u4f46\u6211\u53ea\u5728Node.js\u548cPython\u4e0a\u6709\u5b9e\u9645\u5b9e\u73b0\u7684\u7ecf\u9a8c\uff0c\u6240\u4ee5\u4e3b\u8981\u4ee5\u8fd9\u4e9b\u8bed\u8a00\u4e3a\u4f8b\u8fdb\u884c\u89e3\u91ca\u3002<\/p>\n

\u5e94\u7528\u670d\u52a1\u5668<\/h3>\n

\u53ea\u9700\u8981\u4ece\u5ba2\u6237\u7aef\u90a3\u91cc\u5f97\u5230\u4e00\u4e2a\u7ec8\u7aef\u8282\u70b9\u5c31\u53ef\u4ee5\u4e86\uff0c\u6240\u4ee5\u65e0\u8bba\u4ec0\u4e48\u90fd\u53ef\u4ee5\u3002\u5982\u679c\u662f\u7528nodejs\u7684\u8bdd\uff0c\u5c31\u7528koa\u5427\u3002<\/p>\n

GraphQL\u670d\u52a1\u5668 (GraphQL Server)<\/h3>\n

\u8fd9\u4e2a\u3002GraphQL\u670d\u52a1\u5668\u8fd9\u4e2a\u8bf4\u6cd5\u7ecf\u5e38\u51fa\u73b0\uff0c\u975e\u5e38\u4ee4\u4eba\u56f0\u60d1\uff01\u6700\u521d\u6211\u4ee5\u4e3a\u662f\u6307\u6709\u7279\u6b8a\u529f\u80fd\u7684\u670d\u52a1\u5668\u3002\uff08\u53ea\u6709\u6211\u4e00\u4e2a\u4eba\u8fd9\u6837\u60f3\u5417\uff1f\uff09
\n\u5b9e\u9645\u4e0a\uff0c\u8fd9\u53ea\u662f\u7528\u6765\u5904\u7406\u53d1\u9001\u7ed9GraphQL\u67e5\u8be2\u7684\u8bf7\u6c42\u7684\u7aef\u70b9\u3002\u5b83\u7684\u4f5c\u7528\u5c31\u662f\u89e3\u6790GraphQL\u67e5\u8be2\uff0c\u5e76\u5c06\u5904\u7406\u903b\u8f91\u5206\u6d3e\u5230\u6570\u636e\u83b7\u53d6\u7684\u5b9e\u73b0\u4e2d\u3002\u867d\u7136\u4f60\u4e5f\u53ef\u4ee5\u81ea\u5df1\u5b9e\u73b0\uff0c\u4f46\u5927\u591a\u6570\u8bed\u8a00\/\u6846\u67b6\u5df2\u7ecf\u6709\u76f8\u5e94\u7684\u5e93\uff0c\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u3002\u6bd4\u5982Python\u7684graphene\uff0cNode.js\u7684apollo-server\uff0c\u8fd8\u6709Facebook\u7684graphql-js\u3002<\/p>\n

\u4f5c\u4e3a\u4e00\u4e2a\u5b9e\u4f8b\uff0c\u5c06koa \u00d7 apollo\u7ed3\u5408\u8d77\u6765\uff0c\u53ef\u4ee5\u5f97\u5230\u4e0a\u8ff0\u7684\u5e94\u7528\u670d\u52a1\u5668\u548cGraphQL\u670d\u52a1\u5668\u3002<\/p>\n

import<\/span> koa<\/span> from<\/span> '<\/span>koa<\/span>'<\/span>;<\/span>\r\nimport<\/span> koaRouter<\/span> from<\/span> '<\/span>koa-router<\/span>'<\/span>;<\/span>\r\nimport<\/span> koaBody<\/span> from<\/span> '<\/span>koa-bodyparser<\/span>'<\/span>;<\/span>\r\nimport<\/span> {<\/span> graphqlKoa<\/span>,<\/span> graphiqlKoa<\/span> }<\/span> from<\/span> '<\/span>apollo-server-koa<\/span>'<\/span>;<\/span>\r\n\r\nconst<\/span> app<\/span> =<\/span> new<\/span> koa<\/span>();<\/span>\r\nconst<\/span> router<\/span> =<\/span> new<\/span> koaRouter<\/span>();<\/span>\r\n\r\nrouter<\/span>.<\/span>post<\/span>(<\/span>'<\/span>\/graphql<\/span>'<\/span>,<\/span> graphqlKoa<\/span>({<\/span> schema<\/span>:<\/span> myGraphQLSchema<\/span> }));<\/span>\r\n\r\napp<\/span>.<\/span>use<\/span>(<\/span>router<\/span>.<\/span>routes<\/span>());<\/span>\r\napp<\/span>.<\/span>listen<\/span>(<\/span>3000<\/span>);<\/span>\r\n<\/code><\/pre>\n
\u5f53\u7136\u3002\u5f53\u8bf7\u6c42\u88ab\u53d1\u9001\u5230\/graphql\u7ec8\u70b9\u65f6\uff0c\u53ea\u9700\u5c06\u5176\u4f20\u9012\u7ed9graphqlKoa\u5e93\u5373\u53ef\u3002\u975e\u5e38\u7b80\u5355\u3002
\n\u5176\u4e2d\u7684myGraphqlSchema\u5bf9\u8c61\u662f\u5e94\u7528\u7a0b\u5e8f\u7684\u5b9e\u73b0\u90e8\u5206\uff0c\u5305\u62ec\u7c7b\u578b\u5b9a\u4e49\u3001\u6570\u636e\u83b7\u53d6\u903b\u8f91\u7b49\u7b49\uff08\u7a0d\u540e\u4f1a\u8be6\u7ec6\u63d0\u5230\uff09\u3002<\/p>\n
\u6570\u636e\u5e93 (databases)<\/h3>\n
\u6ca1\u95ee\u9898\u3002GraphQL \u53ea\u662f\u4e00\u4e2a\u7528\u4e8e\u83b7\u53d6\u8fdc\u7a0b\u6570\u636e\u7684\u67e5\u8be2\u8bed\u8a00\uff0c\u4e5f\u5c31\u662f\u4e00\u4e2a\u63a5\u53e3\u3002\u6240\u4ee5\uff0c\u5728\u670d\u52a1\u5668\u7aef\u5f53\u7136\u9700\u8981\u80fd\u591f\u8bbf\u95ee\u6570\u636e\u3002\u65e0\u8bba\u662f\u4f7f\u7528\u6570\u636e\u5e93\u8fd8\u662fAPI\uff0c\u5982\u679c\u8981\u6a21\u62df\u5b83\u4eec\u90fd\u53ef\u4ee5\uff0c\u4e0d\u662f\u5fc5\u9700\u7684\u3002\u5982\u679c\u8981\u4f7f\u7528\u5173\u7cfb\u578b\u6570\u636e\u5e93\uff0c\u4e5f\u53ef\u4ee5\u9009\u62e9\u81ea\u5df1\u559c\u6b22\u7684OR\u6620\u5c04\u5de5\u5177\u3002\u603b\u4e4b\uff0c\u8fd9\u90e8\u5206\u6ca1\u6709\u4efb\u4f55\u9650\u5236\u3002\u6211\u4eec\u5c06\u5728\u524d\u9762\u63d0\u5230\u7684 myGraphqlSchema \u5bf9\u8c61\u4e2d\u5b9e\u73b0\u6570\u636e\u5e93\u8bbf\u95ee\u7b49\u64cd\u4f5c\u3002<\/p>\n
\u63cf\u8ff0\u4f60\u7684\u6570\u636e<\/h2>\n
\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8<\/div>\n
\u9019\u500b\u770b\u8d77\u4f86\u597d\u50cf<\/p>\n
type Project {\r\n  name: String\r\n  tagline: String\r\n  contributors: [User]\r\n}\r\n<\/code><\/pre>\n
\u8fd9\u597d\u50cf\u662f\u5fc5\u987b\u8981\u8fd9\u6837\u5199\u7684\u6837\u5b50\uff0c\u4f46\u5176\u5b9e\u5e76\u6ca1\u6709\u5fc5\u8981\u3002\u8fd9\u5b8c\u5168\u53d6\u51b3\u4e8e\u4e0a\u8ff0GraphQL\u670d\u52a1\u5668\u7684\u5b9e\u73b0\u3002\u8bf4\u5230\u5e95\uff0cFacebook\u7684graphql-js\u4e2d\u6ca1\u6709\u8981\u6c42\u3002<\/p>\n
const<\/span> Project<\/span> =<\/span> new<\/span> GraphQLObjectType<\/span>({<\/span>\r\n  name<\/span>:<\/span> \"<\/span>Project<\/span>\"<\/span>,<\/span>\r\n  description<\/span>:<\/span> \"<\/span>Project description<\/span>\"<\/span>,<\/span>\r\n  fields<\/span>:<\/span> ()<\/span> =><\/span> ({<\/span>\r\n    name<\/span>:<\/span> {<\/span>type<\/span>:<\/span> GraphQLString<\/span>},<\/span>\r\n    tagline<\/span>:<\/span> {<\/span>type<\/span>:<\/span> GraphQLString<\/span>},<\/span>\r\n  })<\/span>\r\n})<\/span>\r\n<\/code><\/pre>\n
\u5c31\u50cf\u8fd9\u6837\u5199\uff0c\u5e76\u4e14\u7528Python\u7684graphene\u5e93\u3002<\/p>\n
import<\/span> graphene<\/span>\r\n\r\nclass<\/span> Project<\/span>(<\/span>graphene<\/span>.<\/span>ObjectType<\/span>):<\/span>\r\n    name<\/span> =<\/span> graphene<\/span>.<\/span>String<\/span>(<\/span>name<\/span>=<\/span>graphene<\/span>.<\/span>String<\/span>())<\/span>\r\n    tagline<\/span> =<\/span> graphene<\/span>.<\/span>String<\/span>(<\/span>name<\/span>=<\/span>graphene<\/span>.<\/span>String<\/span>())<\/span>\r\n\r\n.<\/span>\r\n.<\/span>\r\n<\/code><\/pre>\n
\u4ee5class\u7684\u5f62\u5f0f\u8fdb\u884c\u5b9a\u4e49\uff0capollo-server\u662f\u8fd9\u6837\u7684\u3002<\/p>\n
type Project {\r\n  name: String\r\n  tagline: String\r\n  contributors: [User]\r\n}\r\n<\/code><\/pre>\n
\u5199\u7684\u662f\u8fd9\u4e2a\uff0c\u5fe0\u5b9e\u3002<\/p>\n
\u53ea\u8981\u80fd\u5b9a\u4e49\u7c7b\u578b\uff0c\u4ec0\u4e48\u90fd\u53ef\u4ee5\u3002\u5269\u4e0b\u7684\u4e8b\u60c5\u7531\u5e93\u6765\u5904\u7406\u3002<\/p>\n
\u90a3\u4e48\u4e3a\u4ec0\u4e48\u8981\u8fdb\u884c\u8fd9\u79cd\u5b9a\u4e49\u5462\uff1f\u7b80\u5355\u6765\u8bf4\uff0c\u662f\u4e3a\u4e86\u5728\u89e3\u6790\u67e5\u8be2\u6216\u8fd4\u56de\u54cd\u5e94\u65f6\u8fdb\u884c\u7c7b\u578b\u68c0\u67e5\u3002\u8fd9\u662fGraphQL\u975e\u5e38\u91cd\u8981\u7684\u7279\u70b9\u3002<\/p>\n
\u800c\u4e14\uff0c\u8fd9\u79cd\u7c7b\u578b\u4e0d\u5fc5\u4e0e\u6570\u636e\u5e93\u8868\u4e00\u5bf9\u4e00\u5bf9\u5e94\u3002\u60a8\u53ef\u4ee5\u66f4\u6539\u540d\u79f0\uff0c\u751a\u81f3\u53ef\u4ee5\u4f7f\u7528\u5b8c\u5168\u4e0d\u540c\u7684\u6a21\u5f0f\uff0c\u8fd8\u53ef\u4ee5\u6dfb\u52a0\u65b0\u7684\u8868\uff0c\u6216\u5c06\u591a\u4e2a\u8868\u7ec4\u5408\u6210\u4e00\u4e2a\u7c7b\u578b\u6765\u8868\u793a\u3002\u8fd9\u4e9b\u90fd\u662f\u6839\u636e\u60a8\u5e0c\u671b\u4e3a\u5e94\u7528\u7a0b\u5e8f\u521b\u5efa\u4ec0\u4e48\u6837\u7684\u63a5\u53e3\u800c\u8fdb\u884c\u7684\u601d\u8003\u3002<\/p>\n
\u867d\u7136\u6211\u5e76\u4e0d\u6253\u7b97\u5728\u672c\u6587\u4e2d\u8be6\u7ec6\u89e3\u91caGraphQL\u7684\u7c7b\u578b\uff0c\u4f46\u662f\u8ba9\u6211\u4eec\u5feb\u901f\u5730\u7ee7\u7eed\u4e0b\u4e00\u6b65\u3002<\/p>\n
\u95ee\u4f60\u60f3\u8981\u7684\u3002<\/h2>\n
\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8<\/div>\n
\u662f\u7684\uff0c\u5c31\u662f\u8fd9\u79cd\u67e5\u8be2\u8bed\u8a00\u3002\u800c\u4e14\uff0c\u5ba2\u6237\u7aef\u4f1a\u5c06\u8fd9\u4e2a\u5b57\u7b26\u4e32\u53d1\u9001\u5230\u670d\u52a1\u5668\u3002<\/p>\n
{\r\n  project(name: \"Graphql\"): {\r\n    tagline\r\n  }\r\n}\r\n<\/code><\/pre>\n
\u7279\u5f81\u6027\u7684\u662f\u6709\u53c2\u6570\u5b58\u5728\u3002\u8fd9\u4e0d\u4ec5\u4ec5\u9002\u7528\u4e8e\u6839\u8282\u70b9\uff0c\u800c\u4e14\u53ef\u4ee5\u5728\u4efb\u4f55\u8282\u70b9\u4e0a\u6307\u5b9a\u53c2\u6570\u3002\u4f8b\u5982\uff0c\u5982\u679c\u60f3\u8981\u4ec5\u83b7\u53d6\u7279\u5b9a\u9879\u76ee\u7684\u524d5\u4e2a\u8d21\u732e\u8005\uff0c\u53ef\u4ee5\u8fd9\u6837\u505a\u3002<\/p>\n
{\r\n  project(name: \"Graphql\"): {\r\n    tagline\r\n    contributers(first: 5) {\r\n      name\r\n    }\r\n  }\r\n}\r\n<\/code><\/pre>\n
\u83b7\u5f97\u53ef\u9884\u6d4b\u7684\u7ed3\u679c k\u011b de<\/h1>\n
\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8<\/div>\n
\u90a3\u4e48\uff0c\u5982\u4f55\u8fd4\u56de\u6570\u636e\u5462\uff1f\u8fd9\u5f53\u7136\u53d6\u51b3\u4e8e\u4f7f\u7528\u7684\u5e93\uff0c\u4e3a\u4e86\u66f4\u5bb9\u6613\u7406\u89e3\uff0c\u6211\u4eec\u4ee5apollo-server\u4e3a\u4f8b\u4ecb\u7ecd\u5b9e\u9645\u7684\u5b9e\u73b0\u3002\u8fd9\u662f\u4e0a\u8ff0myGraphqlSchema\u7684\u5177\u4f53\u5b9e\u73b0\uff0c\u8bf7\u5148\u5927\u81f4\u6d4f\u89c8\u4e00\u4e0b\u3002<\/p>\n
const<\/span> {<\/span> makeExecutableSchema<\/span> }<\/span> =<\/span> require<\/span>(<\/span>'<\/span>graphql-tools<\/span>'<\/span>);<\/span>\r\n\r\n\/\/ \u578b\u306e\u5b9a\u7fa9\u90e8\u5206<\/span>\r\n\/\/ project\u306f\u5f15\u6570\u306b\u5fc5\u9808\u3067\u6570\u5024\u306eid\u3092\u3068\u308a\u3001contributors\u306f\u5f15\u6570\u306b\u6570\u5024\u306efirst\u3092\u3068\u308b\u3002<\/span>\r\nconst<\/span> typeDefs<\/span> =<\/span> `\r\n  type Query {\r\n    project(id: Int!): Project\r\n  }\r\n  type Project {\r\n    name: String\r\n    tagline: String\r\n    contributors(first: Int): [User]\r\n  }\r\n  type User {\r\n    name: String\r\n    email: String\r\n  }\r\n`<\/span>;<\/span>\r\n\r\nconst<\/span> resolvers<\/span> =<\/span> {<\/span>\r\n  \/\/ Query\u578b\u304b\u3089\u8fd4\u3059\u5024\u3092\u53d6\u5f97\u3059\u308b\u5b9f\u88c5\u3002<\/span>\r\n  Query<\/span>:<\/span> {<\/span>\r\n    project<\/span>:<\/span> (<\/span>root<\/span>,<\/span> args<\/span>)<\/span> =><\/span>\r\n      fetch<\/span>(<\/span>`select id, name, tagline from projects where id = <\/span>${<\/span>args<\/span>.<\/span>id<\/span>}<\/span>`<\/span>)<\/span>\r\n  },<\/span>\r\n  \/\/ Project\u578b\u304b\u3089\u8fd4\u3059\u5024\u3092\u53d6\u5f97\u3059\u308b\u5b9f\u88c5\u3002<\/span>\r\n  Project<\/span>:<\/span> {<\/span>\r\n    name<\/span>:<\/span> project<\/span> =><\/span> project<\/span>.<\/span>name<\/span>,<\/span>\r\n    tagline<\/span>:<\/span> project<\/span> =><\/span> project<\/span>.<\/span>tagline<\/span>,<\/span>\r\n    contributors<\/span>:<\/span> (<\/span>project<\/span>,<\/span> args<\/span>)<\/span> =><\/span>\r\n      fetch<\/span>(<\/span>`select * from contributors where project_id = <\/span>${<\/span>project<\/span>.<\/span>id<\/span>}<\/span> limit <\/span>${<\/span>args<\/span>.<\/span>first<\/span>}<\/span>`<\/span>)<\/span>\r\n  },<\/span>\r\n  \/\/ User\u578b\u304b\u3089\u8fd4\u3059\u5024\u3092\u53d6\u5f97\u3059\u308b\u5b9f\u88c5<\/span>\r\n  User<\/span>:<\/span> {<\/span>\r\n    name<\/span>:<\/span> user<\/span> =><\/span> user<\/span>.<\/span>name<\/span>,<\/span>\r\n    email<\/span>:<\/span> user<\/span> =><\/span> user<\/span>.<\/span>email<\/span>\r\n  }<\/span>\r\n};<\/span>\r\n\r\nconst<\/span> schema<\/span> =<\/span> makeExecutableSchema<\/span>({<\/span> typeDefs<\/span>,<\/span> resolvers<\/span> });<\/span>\r\n\r\n<\/code><\/pre>\n
typeDefs \u662f\u63cf\u8ff0\u60a8\u7684\u6570\u636e\u7684\u90e8\u5206\uff0c\u4e0e\u4e0a\u8ff0\u7684\u201c\u63cf\u8ff0\u60a8\u7684\u6570\u636e\u201d\u76f8\u5bf9\u5e94\u3002\u800c resolvers \u662f\u7f16\u5199\u5b9e\u9645\u6570\u636e\u83b7\u53d6\u903b\u8f91\u7684\u5730\u65b9\u3002\u60a8\u9700\u8981\u5728 typeDefs \u4e2d\u5b9a\u4e49\u81ea\u5df1\u5c5e\u6027\u7684\u83b7\u53d6\u65b9\u6cd5\uff0c\u9010\u4e00\u8fdb\u884c\u5b9a\u4e49\u3002<\/p>\n
\u67e5\u8be2\uff08Query\uff09\u662f\u4e00\u4e2a\u4fdd\u7559\u8bcd\uff0c\u7528\u4e8e\u8868\u793a\u67e5\u8be2\u7684\u6839\u8282\u70b9\u7c7b\u578b\u3002\u5f53\u524d\uff0cQuery\u7c7b\u578b\u4ec5\u5b9a\u4e49\u4e86project\uff08\u9879\u76ee\uff09\u7c7b\u578b\uff0c\u4f46\u5982\u679c\u60f3\u8981\u7f16\u5199\u5176\u4ed6\u67e5\u8be2\uff0c\u4f8b\u5982\u60f3\u8981\u83b7\u53d6\u7528\u6237\u5217\u8868\uff01\u60f3\u8981\u83b7\u53d6\u6d3b\u8dc3\u7528\u6237\u5217\u8868\uff01\u7b49\u7b49\uff0c\u9700\u8981\u4fee\u6539\u5e76\u5b9a\u4e49Query\u7c7b\u578b\u3002<\/p>\n
type Query {\r\n  project(id: Int!): Project\r\n  users: [User]\r\n  activeUsers: [User]\r\n}\r\n<\/code><\/pre>\n
\u540c\u6837\u5730\uff0c\u6211\u4eec\u4e5f\u4f1a\u5b9e\u73b0 resolvers\u3002<\/p>\n
\r\nconst<\/span> resolvers<\/span> =<\/span> {<\/span>\r\n  \/\/ Query\u578b\u304b\u3089\u8fd4\u3059\u5024\u3092\u53d6\u5f97\u3059\u308b\u5b9f\u88c5\u3002<\/span>\r\n  Query<\/span>:<\/span> {<\/span>\r\n    project<\/span>:<\/span> (<\/span>root<\/span>,<\/span> args<\/span>)<\/span> =><\/span> fetch<\/span>(<\/span>`select id, name, tagline from projects where id = <\/span>${<\/span>args<\/span>.<\/span>id<\/span>}<\/span>`<\/span>),<\/span>\r\n    users<\/span>:<\/span> ()<\/span> =><\/span> fetch<\/span>(<\/span>'<\/span>select * from users<\/span>'<\/span>),<\/span>\r\n    activeUsers<\/span>:<\/span> ()<\/span> =><\/span> fetch<\/span>(<\/span>'<\/span>select * from users where active = 1<\/span>'<\/span>),<\/span>\r\n  },<\/span>\r\n.<\/span>\r\n.<\/span>\r\n\r\n<\/code><\/pre>\n
\u8fd9\u6837\u4e00\u6765,
\n\u8fd9\u4e48\u505a\u7684\u8bdd,
\n\u5982\u679c\u8fd9\u6837\u505a\u7684\u8bdd,
\n\u8fd9\u6837\u7684\u8bdd<\/p>\n
query {\r\n  users {\r\n    name\r\n  }\r\n  activeUsers {\r\n    name\r\n  }\r\n}\r\n<\/code><\/pre>\n
\u5199\u4e0b\u8fd9\u4e2a\u67e5\u8be2\u3002<\/p>\n
{<\/span>\r\n  \"users\"<\/span>:<\/span> [<\/span>\r\n    {<\/span>\r\n      \"name\"<\/span>:<\/span> \"harada\"<\/span>\r\n    },<\/span> {<\/span>\r\n      \"name\"<\/span>:<\/span> \"yamada\"<\/span>\r\n    },<\/span> {<\/span>\r\n      \"name\"<\/span>:<\/span> \"tanaka\"<\/span>\r\n    }<\/span>\r\n  ],<\/span>\r\n  \"activeUsers\"<\/span>:<\/span> [<\/span>\r\n    {<\/span>\r\n      \"name\"<\/span>:<\/span> \"harada\"<\/span>\r\n    },<\/span> {<\/span>\r\n      \"name\"<\/span>:<\/span> \"yamada\"<\/span>\r\n    }<\/span>\r\n  ]<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u53ef\u4ee5\u83b7\u53d6\u7c7b\u4f3c\u7684\u6570\u636e\u3002<\/p>\n
\u201c\u89e3\u6790\u5668\u201d\u7684\u5b9a\u4e49\u5c31\u50cf\u5728\u4f7f\u7528REST\u5b9e\u73b0\u65f6\u7684\u7ec8\u7aef\u70b9\u4e00\u6837\uff0c\u5b83\u662f\u7528\u4e8e\u8bbf\u95ee\u6570\u636e\u5e93\u7b49\u83b7\u53d6\u6570\u636e\u7684\u90e8\u5206\u3002\u5728GraphQL\u4e2d\uff0c\u5bf9\u4e8e\u67d0\u4e2a\u7c7b\u578b\uff0c\u53ea\u9700\u5b9e\u73b0\u4e0e\u8be5\u7c7b\u578b\u5173\u8054\u7684\u53ef\u83b7\u53d6\u6570\u636e\uff0c\u56e0\u6b64\u8303\u56f4\u975e\u5e38\u6709\u9650\uff0c\u6613\u4e8e\u7406\u89e3\u548c\u5b9e\u73b0\uff0c\u8fd9\u662f\u5176\u7279\u70b9\u4e4b\u4e00\u3002<\/p>\n
\u6700\u540e<\/h1>\n
\u90a3\u4e48\uff0c\u7b80\u5355\u6765\u8bf4\uff0c\u60a8\u80fd\u60f3\u8c61\u4e00\u4e0b\u4ec0\u4e48\u662f\u5b9e\u73b0 GraphQL \u7684\u5927\u81f4\u8fc7\u7a0b\u5417\uff1f<\/p>\n
\u5b9e\u9645\u4e0a\uff0c\u5404\u79cd\u7c7b\u578b\u7684\u6a21\u5757\u5316\u3001n + 1 \u95ee\u9898\u3001\u5b89\u5168\u6027\u4ee5\u53ca\u670d\u52a1\u5668\u8d1f\u8f7d\u7b49\u90fd\u9700\u8981\u8003\u8651\u7684\u4e8b\u9879\u975e\u5e38\u591a\u3002\u5982\u679c\u4e0b\u6b21\u6709\u673a\u4f1a\u7684\u8bdd\uff0c\u6211\u4f1a\u518d\u5199\u4e00\u7bc7\u5173\u4e8e\u8fd9\u4e2a\u7684\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4f60\u597d\u3002\u4eca\u5929\u662f OPENLOGI \u8282\u65e5\u65e5\u5386\u7684\u7b2c\u56db\u5929\u3002 \u6211\u5e73\u65f6\u8d1f\u8d23\u4ed3\u5e93\u7ba1\u7406\u7cfb\u7edf\uff08WMS\uff09\u7684\u5f00\u53d1\u3002 \u8fd9\u6b21\u548c\u7269\u6d41\u5b8c\u5168\u65e0 […]<\/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-47736","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\n\u8ba9\u6211\u4eec\u5c1d\u8bd5\u4f7f\u7528GraphQL\u8fdb\u884c\u5b9e\u73b0 - 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\/\u8ba9\u6211\u4eec\u5c1d\u8bd5\u4f7f\u7528graphql\u8fdb\u884c\u5b9e\u73b0\u3002\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u8ba9\u6211\u4eec\u5c1d\u8bd5\u4f7f\u7528GraphQL\u8fdb\u884c\u5b9e\u73b0\" \/>\n<meta property=\"og:description\" content=\"\u4f60\u597d\u3002\u4eca\u5929\u662f OPENLOGI \u8282\u65e5\u65e5\u5386\u7684\u7b2c\u56db\u5929\u3002 \u6211\u5e73\u65f6\u8d1f\u8d23\u4ed3\u5e93\u7ba1\u7406\u7cfb\u7edf\uff08WMS\uff09\u7684\u5f00\u53d1\u3002 \u8fd9\u6b21\u548c\u7269\u6d41\u5b8c\u5168\u65e0 […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u8ba9\u6211\u4eec\u5c1d\u8bd5\u4f7f\u7528graphql\u8fdb\u884c\u5b9e\u73b0\u3002\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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