{"id":48009,"date":"2023-06-27T16:10:18","date_gmt":"2024-02-01T18:37:47","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90%e6%9c%8d%e5%8a%a1%e5%99%a8%e7%ab%af%e6%95%99%e7%a8%8b%e3%80%91%e6%88%91%e4%bb%ac%e6%9d%a5%e4%bd%bf%e7%94%a8graphql%e5%90%a7\/"},"modified":"2024-04-30T10:56:53","modified_gmt":"2024-04-30T02:56:53","slug":"%e3%80%90%e6%9c%8d%e5%8a%a1%e5%99%a8%e7%ab%af%e6%95%99%e7%a8%8b%e3%80%91%e6%88%91%e4%bb%ac%e6%9d%a5%e4%bd%bf%e7%94%a8graphql%e5%90%a7","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90%e6%9c%8d%e5%8a%a1%e5%99%a8%e7%ab%af%e6%95%99%e7%a8%8b%e3%80%91%e6%88%91%e4%bb%ac%e6%9d%a5%e4%bd%bf%e7%94%a8graphql%e5%90%a7\/","title":{"rendered":"\u3010\u670d\u52a1\u5668\u7aef\u6559\u7a0b\u3011\u6211\u4eec\u6765\u4f7f\u7528GraphQL\u5427"},"content":{"rendered":"

\u4f60\u597d\uff01\u8fd9\u6b21\u6211\u60f3\u4f7f\u7528GraphQL\u6765\u521b\u5efaTodo\u6e05\u5355\u3002<\/p>\n

\u203b\u672c\u6587\u5c06\u5bf9\u670d\u52a1\u5668\u7aef\u8fdb\u884c\u8bf4\u660e\u3002
\n\u70b9\u51fb\u6b64\u5904\u67e5\u770b\u6709\u5173\u5ba2\u6237\u7aef\u7684\u6587\u7ae0\u3002<\/p>\n

\u76ee\u5f55<\/h1>\n

1.\u8fd9\u6b21\u8981\u5236\u4f5c\u7684\u4e1c\u897f
\n2.\u4f7f\u7528\u7684\u6280\u672f
\n3.\u6240\u9700\u7684\u5b89\u88c5
\n4.\u672c\u6b21\u51fa\u73b0\u7684\u4e3b\u8981\u6587\u4ef6
\n5.\u9a6c\u4e0a\u5f00\u59cb\u5199\u5427
\n– \u7f16\u5199app.js
\n– \u7f16\u5199schema.js
\n– \u8fde\u63a5MongoDB
\n– \u7f16\u5199models\u6587\u4ef6\u5939\u5185\u7684\u6587\u4ef6
\n6.\u65b9\u6cd5\u7684\u5199\u6cd5
\n7.\u83b7\u53d6\u6570\u636e
\n8.\u6dfb\u52a0\u3001\u7f16\u8f91\u3001\u5220\u9664\u6570\u636e
\n– \u6dfb\u52a0\u6570\u636e
\n– \u7f16\u8f91\u6570\u636e
\n– \u5220\u9664\u6570\u636e
\n9.\u5c1d\u8bd5\u6d4b\u8bd5\u662f\u5426\u6b63\u5e38\u8fd0\u884c
\n10.\u603b\u7ed3<\/p>\n

\u8d85\u5927\u81f4\u8bb2\u89e3GraphQL\uff1a
\n– \u53ef\u4ee5\u7528\u6765\u4ece\u6570\u636e\u5e93\u83b7\u53d6\u4fe1\u606f\u3002
\n– \u53ea\u9700\u8981\u4e00\u4e2aAPI\u7684URL\uff08\u7aef\u70b9\uff09\uff01
\n– \u5ba2\u6237\u7aef\u53ef\u4ee5\u9009\u62e9\u81ea\u5df1\u60f3\u8981\u4ece\u6570\u636e\u5e93\u83b7\u53d6\u7684\u6570\u636e\uff01
\n\u2192 \u4e0d\u9700\u8981\u5728\u670d\u52a1\u5668\u7aef\u4e3a\u6bcf\u4e2a\u7528\u9014\u521b\u5efa\u4e00\u4e2a\u4e2a\u7684API\u3002\u53ef\u4ee5\u6700\u4f4e\u9650\u5ea6\u5730\u5b8c\u6210\u3002<\/div>\n

\u6211\u4eec\u7acb\u5373\u5f00\u59cb\u5427\u3002<\/h4>\n

1. \u8fd9\u6b21\u8981\u505a\u7684\u4e1c\u897f<\/h1>\n

\u6211\u5c06\u521b\u5efa\u4e00\u4e2a\u5f85\u529e\u4e8b\u9879\u5e94\u7528\u7a0b\u5e8f\uff0c\u8ba9\u6bcf\u4e2a\u5f85\u529e\u4e8b\u9879\u90fd\u53ef\u4ee5\u5e26\u6709\u4e00\u4e2a\u5206\u7c7b\uff0c\u4ee5\u4fbf\u80fd\u591f\u8fdb\u884c\u5206\u7c7b\u3002<\/p>\n

2. \u6280\u672f\u5e94\u7528<\/h1>\n

\u30fb\u7a97\u6237\uff0810\uff09
\n\u30fb\u8bed\u8a00\uff1aJavaScript
\n\u30fb\u6570\u636e\u5e93\uff1aMongoDB
\n\u30fbNode.js
\n\u30fbExpress
\n\u30fbGraphQL\uff08\u5728Node\u4e2d\u4f7f\u7528\u7684\u56fe\u50cf\uff09<\/p>\n

3. \u5b89\u88c5\u5fc5\u9700\u54c1.<\/h1>\n

\u9700\u8981\u7684\u8bdd\uff0c\u8bf7\u6309\u7167\u4ee5\u4e0b\u7684\u5b89\u88c5\u6b65\u9aa4\u8fdb\u884c\u64cd\u4f5c\uff1a
\n1. \u521b\u5efa\u4e00\u4e2a\u7a7a\u6587\u4ef6\u5939\uff0c\u5e76\u5728\u5176\u4e2d\u4f7f\u7528\u547d\u4ee4\u63d0\u793a\u7b26\u8fdb\u884c\u79fb\u52a8\u3002
\n2. \u8fd0\u884c\u547d\u4ee4npm install\u8fdb\u884c\u5b89\u88c5\u3002<\/p>\n

\/\/packagejson\u306e\u4f5c\u6210(\u5168\u90e8\u30a8\u30f3\u30bf\u30fc\u3067OK)<\/span>\r\nnpm<\/span> init<\/span>\r\n\r\n\/\/express\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/span>\r\nnpm<\/span> install<\/span> express<\/span>\r\n\r\n\/\/\u5909\u66f4\u3057\u305f\u3089node.js\u3092\u81ea\u52d5\u3067\u518d\u8d77\u52d5\u3055\u305b\u308b\u305f\u3081<\/span>\r\nnpm<\/span> install<\/span> nodemon<\/span>\r\n\r\n\/\/express-graphql\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/span>\r\nnpm<\/span> install<\/span> express<\/span>-<\/span>graphql<\/span>\r\n\r\n\/\/graphql\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/span>\r\nnpm<\/span> install<\/span> graphql<\/span>\r\n\r\n\/\/\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3067\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3057\u305f\u969b\u306bCors\u30a8\u30e9\u30fc\u3092\u963b\u6b62\u3059\u308b<\/span>\r\nnpm<\/span> install<\/span> cors<\/span>\r\n\r\n\/\/MongoDB\u3068\u63a5\u7d9a\u306e\u305f\u3081\u7e4b\u3050\u305f\u3081\u306bmongoose\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/span>\r\nnpm<\/span> install<\/span> mongoose<\/span>\r\n\r\n<\/code><\/pre>\n
\u5982\u679c\u60a8\u6ca1\u6709\u5b89\u88c5Node.js\uff0c\u8bf7\u989d\u5916\u5b89\u88c5\u3002<\/p>\n
4. \u6b64\u6b21\u4e3b\u8981\u4eae\u76f8\u7684\u6587\u4ef6<\/h1>\n
\n
\u30d5\u30a1\u30a4\u30eb\u540d\u8aac\u660eapp.js\u30b5\u30fc\u30d0\u306b\u7e4b\u3050\u8a2d\u5b9a\u7528\u30d5\u30a1\u30a4\u30ebschema > schema.jsGraphQL\u306e\u8a2d\u5b9a\u7528\u30d5\u30a1\u30a4\u30ebmodels > todo.js\u578b\u3092\u8a2d\u5b9a\u3059\u308b\u30d5\u30a1\u30a4\u30eb(Todo\u7528)models > category.js\u578b\u3092\u8a2d\u5b9a\u3059\u308b\u30d5\u30a1\u30a4\u30eb(\u30ab\u30c6\u30b4\u30ea\u7528).envMongoDB\u3078\u306e\u30a2\u30af\u30bb\u30b9URL<\/div>\n<\/div>\n
\u6574\u4e2a\u5f62\u8c61<\/h3>\n
\"image.png\"<\/div>\n
5. \u6211\u5011\u7acb\u5373\u958b\u59cb\u5beb\u5427<\/h1>\n
\u5199app.js<\/h3>\n
\u8fd9\u91cc\u5c06\u5199\u4e0b\u8fde\u63a5\u5230\u670d\u52a1\u5668\u7684\u8bbe\u7f6e\u3002<\/p>\n
\/\/\u30a4\u30f3\u30dd\u30fc\u30c8\u306e\u30b3\u30fc\u30ca\u30fc===================================================<\/span>\r\n\/\/exporess<\/span>\r\nconst<\/span> express<\/span> =<\/span> require<\/span>(<\/span>\"<\/span>express<\/span>\"<\/span>);<\/span>\r\nconst<\/span> app<\/span> =<\/span> express<\/span>();<\/span>\r\n\r\n\/\/Cors\u30a8\u30e9\u30fc\u5bfe\u7b56\u7528<\/span>\r\nconst<\/span> cors<\/span> =<\/span> require<\/span>(<\/span>\"<\/span>cors<\/span>\"<\/span>);<\/span>\r\napp<\/span>.<\/span>use<\/span>(<\/span>cors<\/span>());<\/span>\r\n\r\n\/\/\u30b5\u30fc\u30d0\u306e\u8a2d\u5b9a============================================================<\/span>\r\n\/\/\u30dd\u30fc\u30c8\u756a\u53f7,\u8d77\u52d5\u3057\u305f\u969b\u306b\u767a\u52d5\u3059\u308b\u30e1\u30bd\u30c3\u30c9<\/span>\r\napp<\/span>.<\/span>listen<\/span>(<\/span>4000<\/span>,<\/span> ()<\/span> =><\/span> {<\/span>\r\n  console<\/span>.<\/span>log<\/span>(<\/span>\"<\/span>express\u8d77\u52d5\u3057\u305f\u3088<\/span>\"<\/span>);<\/span>\r\n});<\/span>\r\n<\/code><\/pre>\n
\u6211\u5c06\u5c1d\u8bd5\u901a\u8fc7nodemon\u542f\u52a8node.js(express)\u6765\u6267\u884c\u8fd9\u4e2a\u72b6\u6001\u3002<\/p>\n
\/\/app\u306f\u30d5\u30a1\u30a4\u30eb\u540d<\/span>\r\nnodemon<\/span> app<\/span>\r\n<\/code><\/pre>\n
\"image.png\"<\/div>\n
\u64b0\u5199schema.js<\/h3>\n
\/\/\u30a4\u30f3\u30dd\u30fc\u30c8\u306e\u30b3\u30fc\u30ca\u30fc===================================================<\/span>\r\n\/\/GraphQL<\/span>\r\nconst<\/span> graphql<\/span> =<\/span> require<\/span>(<\/span>\"<\/span>graphql<\/span>\"<\/span>);<\/span>\r\n\/\/GraphQL\u72ec\u81ea\u306e\u578b\u306e\u30a4\u30f3\u30dd\u30fc\u30c8(\u5f8c\u3067\u8ffd\u52a0\u3042\u308a)<\/span>\r\nconst<\/span> {<\/span> GraphQLObjectType<\/span>,<\/span> GraphQLID<\/span>,<\/span> GraphQLString<\/span>,<\/span> GraphQLBoolean<\/span>,<\/span>\r\nGraphQLList<\/span>,<\/span> GraphQLSchema<\/span> }<\/span> =<\/span> graphql<\/span>;<\/span>\r\n<\/code><\/pre>\n
\u6211\u4eec\u8981\u8bbe\u7f6e\u5728GraphQL\u4e2d\u4f7f\u7528\u7684\u7c7b\u578b\u3002<\/p>\n
\/**\r\n * Todo\u578b.\r\n *\/<\/span>\r\nconst<\/span> TodoType<\/span> =<\/span> new<\/span> GraphQLObjectType<\/span>({<\/span>\r\n\/\/\u578b\u306e\u540d\u524d<\/span>\r\n  name<\/span>:<\/span> \"<\/span>Todo<\/span>\"<\/span>,<\/span>\r\n  fields<\/span>:<\/span> ()<\/span> =><\/span> ({<\/span>\r\n\/\/\u4f7f\u7528\u3059\u308b\u5909\u6570\u3068\u305d\u306e\u578b(\u3053\u3053\u3067\u4f7f\u7528\u3059\u308b\u578b\u540d\u306f\u4e0a\u3067\u30a4\u30f3\u30dd\u30fc\u30c8\u3059\u308b\u5fc5\u8981\u3042\u308a)<\/span>\r\n    id<\/span>:<\/span> {<\/span> type<\/span>:<\/span> GraphQLID<\/span> },<\/span>\r\n    title<\/span>:<\/span> {<\/span> type<\/span>:<\/span> GraphQLString<\/span> },<\/span>\r\n    \/\/Todo\u304c\u5b8c\u4e86\u3057\u305f\u304b\u3069\u3046\u304b<\/span>\r\n    finish<\/span>:<\/span> {<\/span> type<\/span>:<\/span> GraphQLBoolean<\/span> },<\/span>\r\n    \/\/\u203b\u4e0b\u8a18\u3067\u8aac\u660e<\/span>\r\n    category<\/span>:<\/span> {<\/span>\r\n      \/\/\u4e0b\u3067\u8a2d\u5b9a\u3059\u308b\u30ab\u30c6\u30b4\u30ea\u30bf\u30a4\u30d7<\/span>\r\n      type<\/span>:<\/span> CategoryType<\/span>,<\/span>\r\n      resolve<\/span>(<\/span>parent<\/span>,<\/span> args<\/span>)<\/span> {<\/span>\r\n        return<\/span> Category<\/span>.<\/span>findById<\/span>(<\/span>parent<\/span>.<\/span>categoryId<\/span>);<\/span>\r\n      },<\/span>\r\n    },<\/span>\r\n  }),<\/span>\r\n});<\/span>\r\n<\/code><\/pre>\n
\"image.png\"<\/div>\n
\/**\r\n * Category\u578b.\r\n *\/<\/span>\r\nconst<\/span> CategoryType<\/span> =<\/span> new<\/span> GraphQLObjectType<\/span>({<\/span>\r\n\/\/\u578b\u306e\u540d\u524d<\/span>\r\n  name<\/span>:<\/span> \"<\/span>Category<\/span>\"<\/span>,<\/span>\r\n\/\/\u4f7f\u3046\u5909\u6570\u3068\u305d\u306e\u578b<\/span>\r\n  fields<\/span>:<\/span> ()<\/span> =><\/span> ({<\/span>\r\n    id<\/span>:<\/span> {<\/span> type<\/span>:<\/span> GraphQLID<\/span> },<\/span>\r\n    name<\/span>:<\/span> {<\/span> type<\/span>:<\/span> GraphQLString<\/span> },<\/span>\r\n   \/\/\u4e0b\u8a18\u3067\u8aac\u660e<\/span>\r\n    todoList<\/span>:<\/span> {<\/span>\r\n      \/\/\u4e0a\u3067\u8a2d\u5b9a\u3057\u305fTodo\u30bf\u30a4\u30d7\u306e\u30ea\u30b9\u30c8<\/span>\r\n      type<\/span>:<\/span> new<\/span> GraphQLList<\/span>(<\/span>TodoType<\/span>),<\/span>\r\n      resolve<\/span>(<\/span>parent<\/span>,<\/span> args<\/span>)<\/span> {<\/span>\r\n        return<\/span> Todo<\/span>.<\/span>find<\/span>({<\/span> categoryId<\/span>:<\/span> parent<\/span>.<\/span>id<\/span> });<\/span>\r\n      },<\/span>\r\n    },<\/span>\r\n  }),<\/span>\r\n});<\/span>\r\n<\/code><\/pre>\n
\u867d\u7136\u4e0eTodo\u7684\u5d4c\u5957\u539f\u7406\u76f8\u540c\uff0c\u4f46\u662f\u6bcf\u4e2a\u5206\u7c7b\u53ef\u80fd\u4e0e\u591a\u4e2aTodo\u5173\u8054\uff0c\u56e0\u6b64\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a”Todo\u5217\u8868”\u7684GraphQLList\u6765\u8868\u793a\u3002
\n\u4f8b\u5982\uff0c\u5206\u7c7b”\u9605\u8bfb”\u4e2d\u53ef\u80fd\u5305\u542b\u6709”\u4e66\u7c4d1″\u3001”\u4e66\u7c4d2″\u548c”\u4e66\u7c4d3″\u7b49\u591a\u4e2aTodo\u3002<\/p>\n
\u25a0\u8fde\u63a5\u5230MongoDB<\/h3>\n
\/\/URL\u306ePW\u3068DB\u540d\u3092\u81ea\u5206\u3067\u8a2d\u5b9a\u3057\u305f\u5185\u5bb9\u306b\u66f8\u304d\u63db\u3048\u308b\u5fc5\u8981\u30a2\u30ea<\/span>\r\nDB_URL<\/span> =<\/span> MongoDB\u3067\u767a\u884c\u3057\u305fURL\u3092\u8a18\u8f09<\/span>\r\n<\/code><\/pre>\n
\u8ba9\u6211\u4eec\u5728.gitignore\u4e2d\u5199\u4e0b\u8bbe\u7f6e\uff0c\u4ee5\u4fbf\u4e0d\u8981\u628a.env\u4e0a\u4f20\u5230GitHub\u4e0a\u3002<\/p>\n
\u6211\u5011\u5c07\u5728 app.js \u4e2d\u6dfb\u52a0\u9023\u63a5 MongoDB \u7684\u914d\u7f6e\u8a2d\u5b9a\u3002<\/p>\n
\/\/\u30a4\u30f3\u30dd\u30fc\u30c8\u30be\u30fc\u30f3\u306b\u8ffd\u52a0<\/span>\r\n\/\/MongoDB\u306b\u63a5\u7d9a\u306e\u305f\u3081\u306bmongoose\u30a4\u30f3\u30dd\u30fc\u30c8<\/span>\r\nconst<\/span> mongoose<\/span> =<\/span> require<\/span>(<\/span>\"<\/span>mongoose<\/span>\"<\/span>);<\/span>\r\n\/\/.env\u3092\u4f7f\u7528\u3059\u308b\u305f\u3081\u306b\u30a4\u30f3\u30dd\u30fc\u30c8<\/span>\r\nrequire<\/span>(<\/span>\"<\/span>dotenv<\/span>\"<\/span>).<\/span>config<\/span>({<\/span> debug<\/span>:<\/span> true<\/span> });<\/span>\r\n\r\n\/**\r\n * mongoDB\u306b\u63a5\u7d9a.\r\n *\/<\/span>\r\nmongoose<\/span>.<\/span>connect<\/span>(<\/span>process<\/span>.<\/span>env<\/span>.<\/span>DB_URL<\/span>);<\/span>\r\n\r\n\/**\r\n * mongoDB\u306b\u63a5\u7d9a\u3057\u305f\u3089\u969b\u306b\u767a\u52d5\u3059\u308b\u30e1\u30bd\u30c3\u30c9.\r\n *\/<\/span>\r\nmongoose<\/span>.<\/span>connection<\/span>.<\/span>once<\/span>(<\/span>\"<\/span>open<\/span>\"<\/span>,<\/span> ()<\/span> =><\/span> {<\/span>\r\n  console<\/span>.<\/span>log<\/span>(<\/span>\"<\/span>mongoDB\u63a5\u7d9a\u5b8c\u4e86<\/span>\"<\/span>);<\/span>\r\n});<\/span>\r\n<\/code><\/pre>\n
\u5982\u679c\u5728\u547d\u4ee4\u63d0\u793a\u7b26\uff08\u7ec8\u7aef\uff09\u4e0a\u8f93\u5165\u201cnodemon app\u201d\uff0c\u5e76\u663e\u793a\u201cMongoDB\u8fde\u63a5\u5df2\u6210\u529f\u201d\u5219\u8868\u793a\u6b63\u5e38\u3002<\/p>\n
\u203b\u5f53MongoDB\u8fde\u63a5\u4e0d\u6b63\u5e38\u7684\u53ef\u80fd\u6027\uff1a
\n(1)\u5728.env\u6587\u4ef6\u4e2d\u672a\u586b\u5165URL\u3001\u5bc6\u7801\u548c\u6570\u636e\u5e93\u540d\u79f0\u3002
\n(2)\u4e3a\u4e86\u5728URL\u4e2d\u6dfb\u52a0\u6570\u636e\u5e93\u540d\u79f0\uff0c\u9700\u8981\u5148\u521b\u5efa\u6570\u636e\u5e93\uff0c\u4f46\u53ef\u80fd\u672a\u8fdb\u884c\u6b64\u64cd\u4f5c\u3002
\n(3)IP\u5730\u5740\u8bbe\u7f6e\u4e0d\u6b63\u786e\u3002
\n\u6211\u5c24\u5176\u5728\u7b2c\u4e09\u79cd\u60c5\u51b5\u4e0b\u9047\u5230\u4e86\u8bb8\u591a\u56f0\u96be\u3002\u6bcf\u6b21WiFi\u66f4\u6362\u65f6\uff0c\u4f3c\u4e4e\u9700\u8981\u5c06IP\u5730\u5740\u6dfb\u52a0\u5230\u201cADD CURRENT IP ADDRESS\u201d\u4e2d\u3002<\/details>\n
\u5728models\u6587\u4ef6\u5939\u5185\u5199\u6587\u4ef6<\/h3>\n
\u5728\u8fd9\u91cc\u6211\u4eec\u5c06\u7f16\u5199\u7c7b\u578b\u8bbe\u7f6e\u3002
\n\u521a\u624d\u5728schema.js\u4e2d\u6211\u4eec\u5df2\u7ecf\u8bbe\u7f6e\u4e86GraphQL\u7684\u7c7b\u578b\u5bf9\u5427\uff01\u4f46\u662f\u5728\u5c06\u4fe1\u606f\u53d1\u9001\u5230GraphQL\u65f6\uff0c\u6211\u4eec\u9700\u8981\u5c06\u6570\u636e\u4e0e\u7c7b\u578b\u5bf9\u5e94\u8d77\u6765\u4ee5\u8fdb\u884c\u6574\u7406\uff0c\u8fd9\u4e5f\u662f\u4e3a\u4e86\u8bbe\u7f6e\u7684\u610f\u4e49\u4e4b\u4e00\u3002<\/p>\n
\/\/DB\u3092\u4f7f\u3046\u8a2d\u5b9a<\/span>\r\nconst<\/span> mongoose<\/span> =<\/span> require<\/span>(<\/span>\"<\/span>mongoose<\/span>\"<\/span>);<\/span>\r\nconst<\/span> Schema<\/span> =<\/span> mongoose<\/span>.<\/span>Schema<\/span>;<\/span>\r\n\r\n\/**\r\n * Todo\u30e2\u30c7\u30eb\u306e\u4f5c\u6210.\r\n *\/<\/span>\r\nconst<\/span> todoSchema<\/span> =<\/span> new<\/span> Schema<\/span>({<\/span>\r\n  title<\/span>:<\/span> String<\/span>,<\/span>\r\n  finish<\/span>:<\/span> Boolean<\/span>,<\/span>\r\n\/\/\u30ab\u30c6\u30b4\u30eaID\u3060\u3051\u6301\u305f\u305b\u308c\u3070\u30ab\u30c6\u30b4\u30ea\u60c5\u5831\u53d6\u5f97\u53ef\u80fd\u306a\u306e\u3067ID\u306e\u307f\u6301\u305f\u305b\u308b<\/span>\r\n  categoryId<\/span>:<\/span> String<\/span>,<\/span>\r\n});<\/span>\r\n\r\n\/\/\u3053\u3053\u3067\u8a2d\u5b9a\u3057\u305f\u300ctodoSchema\u300d\u3092\u300cTodo\u300d\u3068\u3044\u3046\u540d\u524d\u3067\u4f7f\u3046\u3088\uff01\u3068\u3044\u3046\u5ba3\u8a00<\/span>\r\nmodule<\/span>.<\/span>exports<\/span> =<\/span> mongoose<\/span>.<\/span>model<\/span>(<\/span>\"<\/span>Todo<\/span>\"<\/span>,<\/span> todoSchema<\/span>);<\/span>\r\n\r\n<\/code><\/pre>\n
const<\/span> mongoose<\/span> =<\/span> require<\/span>(<\/span>\"<\/span>mongoose<\/span>\"<\/span>);<\/span>\r\nconst<\/span> Schema<\/span> =<\/span> mongoose<\/span>.<\/span>Schema<\/span>;<\/span>\r\n\r\n\/**\r\n * Category\u30e2\u30c7\u30eb\u306e\u4f5c\u6210.\r\n *\/<\/span>\r\nconst<\/span> categorySchema<\/span> =<\/span> new<\/span> Schema<\/span>({<\/span>\r\n  name<\/span>:<\/span> String<\/span>,<\/span>\r\n});<\/span>\r\n\r\nmodule<\/span>.<\/span>exports<\/span> =<\/span> mongoose<\/span>.<\/span>model<\/span>(<\/span>\"<\/span>Category<\/span>\"<\/span>,<\/span> categorySchema<\/span>);<\/span>\r\n<\/code><\/pre>\n
\u203b\u5728\u8fd9\u91cc\u8bbe\u7f6e\u7684\u53d8\u91cf\u53ea\u9700\u8981\u8fd9\u6837\u5c31\u53ef\u4ee5\u4e86\u5417\uff1f\u6211\u77e5\u9053\u4f60\u53ef\u80fd\u4f1a\u8fd9\u4e48\u60f3\u3002\u4f46\u662f\u5728\u8fd9\u91cc\u6211\u4eec\u662f\u4e3a\u4e86\u6574\u7406\u53d1\u9001\u7684\u4fe1\u606f\u800c\u8fdb\u884c\u7c7b\u578b\u8bbe\u7f6e\u7684\uff0c\u6240\u4ee5\u8ba4\u4e3a\u4e0d\u4f1a\u7528\u4f5c\u201c\u6dfb\u52a0\u65f6\u201d\u53d1\u9001\u4fe1\u606f\u7684\u5c31\u662f\u4e0d\u5fc5\u8981\u7684\u3002<\/p>\n
8. \u6570\u636e\u7684\u6dfb\u52a0\u3001\u7f16\u8f91\u548c\u5220\u9664<\/p>\n
6. \u8fde\u63a5\u6587\u4ef6\u4e4b\u95f4<\/h1>\n
\"image.png\"<\/div>\n
\/\/\u30a4\u30f3\u30dd\u30fc\u30c8\u30be\u30fc\u30f3\u306b\u8ffd\u52a0<\/span>\r\n\/\/\u30e2\u30c7\u30eb\u306e\u30a4\u30f3\u30dd\u30fc\u30c8<\/span>\r\nconst<\/span> Todo<\/span> =<\/span> require<\/span>(<\/span>\"<\/span>..\/models\/todo<\/span>\"<\/span>);<\/span>\r\nconst<\/span> Category<\/span> =<\/span> require<\/span>(<\/span>\"<\/span>..\/models\/category<\/span>\"<\/span>);<\/span>\r\n<\/code><\/pre>\n
\/\/\u30a4\u30f3\u30dd\u30fc\u30c8\u30be\u30fc\u30f3\u306b\u8ffd\u52a0<\/span>\r\n\/\/schema.js\u306e\u60c5\u5831\u3092\u30a4\u30f3\u30dd\u30fc\u30c8<\/span>\r\nconst<\/span> schema<\/span> =<\/span> require<\/span>(<\/span>\"<\/span>.\/schema\/schema<\/span>\"<\/span>);<\/span>\r\nconst<\/span> graphqlHTTP<\/span> =<\/span> require<\/span>(<\/span>\"<\/span>express-graphql<\/span>\"<\/span>).<\/span>graphqlHTTP<\/span>;<\/span>\r\n\r\n\/**\r\n * schema\u306e\u4f7f\u7528\u8a2d\u5b9a.\r\n *\/<\/span>\r\napp<\/span>.<\/span>use<\/span>(<\/span>\r\n  \"<\/span>\/graphql<\/span>\"<\/span>,<\/span>\r\n  graphqlHTTP<\/span>({<\/span>\r\n    schema<\/span>,<\/span>\r\n    graphiql<\/span>:<\/span> true<\/span>,<\/span>\r\n  })<\/span>\r\n);<\/span>\r\n<\/code><\/pre>\n
\u51c6\u5907\u5de5\u4f5c\u5b8c\u6210\uff01\u73b0\u5728\u5f00\u59cb\u7f16\u5199\u65b9\u6cd5\u3002<\/h4>\n
\u8fd9\u91cc\u662f\u5f53\u524d\u72b6\u6001\u7684\u603b\u7ed3\u3002app.js
\nconst express = require(“express”);
\nconst app = express();
\nconst graphqlHTTP = require(“express-graphql”).graphqlHTTP;
\nconst mongoose = require(“mongoose”);
\nrequire(“dotenv”).config({ debug: true });
\nconst schema = require(“.\/schema\/schema”);
\nconst cors = require(“cors”);
\napp.use(cors());<\/p>\n
\/**
\n* \u4f7f\u7528schema\u3002
\n*\/
\napp.use(
\n“\/graphql”,
\ngraphqlHTTP({
\nschema,
\ngraphiql: true,
\n})
\n);<\/p>\n
\/**
\n* \u7aef\u53e3\u53f7\uff0c\u542f\u52a8\u65f6\u89e6\u53d1\u7684\u65b9\u6cd5\u3002
\n*\/
\napp.listen(4000, () => {
\nconsole.log(“express\u5df2\u542f\u52a8”);
\n});<\/p>\n
\/**
\n* \u8fde\u63a5\u5230MongoDB\u3002
\n*\/
\nmongoose.connect(process.env.DB_URL);
\n\/**
\n* \u8fde\u63a5\u5230MongoDB\u65f6\u89e6\u53d1\u7684\u65b9\u6cd5\u3002
\n*\/
\nmongoose.connection.once(“open”, () => {
\nconsole.log(“MongoDB\u8fde\u63a5\u6210\u529f”);
\n});<\/p>\n
schema.js
\nconst graphql = require(“graphql”);
\nconst { GraphQLObjectType, GraphQLID, GraphQLString, GraphQLBoolean, GraphQLList, GraphQLSchema } = graphql;
\n\/\/\u6a21\u578b
\nconst Todo = require(“..\/models\/todo”);
\nconst Category = require(“..\/models\/category”);<\/p>\n
\/**
\n* Todo\u7c7b\u578b\u3002
\n*\/
\nconst TodoType = new GraphQLObjectType({
\nname: “Todo”,
\nfields: () => ({
\nid: { type: GraphQLID },
\ntitle: { type: GraphQLString },
\nfinish: { type: GraphQLBoolean },
\ncategory: {
\ntype: CategoryType,
\nresolve(parent, args) {
\nreturn Category.findById(parent.categoryId);
\n},
\n},
\n}),
\n});<\/p>\n
\/**
\n* Category\u7c7b\u578b\u3002
\n*\/
\nconst CategoryType = new GraphQLObjectType({
\nname: “Category”,
\nfields: () => ({
\nid: { type: GraphQLID },
\nname: { type: GraphQLString },
\ntodoList: {
\ntype: new GraphQLList(TodoType),
\nresolve(parent, args) {
\nreturn Todo.find({ categoryId: parent.id });
\n},
\n},
\n}),
\n});<\/p>\n
todo.js
\nconst mongoose = require(“mongoose”);
\nconst Schema = mongoose.Schema;<\/p>\n
\/**
\n* \u521b\u5efaTodo\u6a21\u578b\u3002
\n*\/
\nconst todoSchema = new Schema({
\ntitle: String,
\nfinish: Boolean,
\ncategoryId: String,
\n});<\/p>\n
module.exports = mongoose.model(“Todo”, todoSchema);<\/p>\n
category.js
\nconst mongoose = require(“mongoose”);
\nconst Schema = mongoose.Schema;<\/p>\n
\/**
\n* \u521b\u5efaCategory\u6a21\u578b\u3002
\n*\/
\nconst categorySchema = new Schema({
\nname: String,
\n});<\/p>\n
module.exports = mongoose.model(“Category”, categorySchema);<\/p>\n<\/details>\n
6. \u65b9\u6cd5\u7684\u7f16\u5199\u65b9\u5f0f de<\/h1>\n
\u6211\u60f3\u8981\u7f16\u5199GraphQL\u7684\u65b9\u6cd5\uff0c\u6240\u4ee5\u6211\u4f1a\u5728schema.js\u4e2d\u8fdb\u884c\u7f16\u5199\u3002
\nGraphQL\u7684\u65b9\u6cd5\u5305\u62ec\uff1a
\n– \u83b7\u53d6\u6570\u636e\u2192Query
\n– \u6dfb\u52a0\u3001\u7f16\u8f91\u548c\u5220\u9664\u6570\u636e\u2192Mutation
\n\u8fd9\u6837\u5199\u8d77\u6765\u5f88\u5bb9\u6613\u8bb0\u4f4f\u3002<\/p>\n
7. \u83b7\u53d6\u6570\u636e<\/h1>\n
\u9996\u5148\u8981\u51c6\u5907\u597d\u67e5\u8be2\u7684\u6846\u67b6\u3002<\/p>\n
const<\/span> RootQuery<\/span> =<\/span> new<\/span> GraphQLObjectType<\/span>({<\/span>\r\n  name<\/span>:<\/span> \"<\/span>RootQueryType<\/span>\"<\/span>,<\/span>\r\n  fields<\/span>:<\/span> {<\/span>\r\n \/\/\u3053\u3053\u306b\u30e1\u30bd\u30c3\u30c9\u3092\u8ffd\u52a0\u3057\u3066\u3044\u304f<\/span>\r\n  },<\/span>\r\n});<\/span>\r\n\r\n\/\/\u5916\u90e8\u304b\u3089\u4f7f\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u3057\u3066\u304a\u304f<\/span>\r\nmodule<\/span>.<\/span>exports<\/span> =<\/span> new<\/span> GraphQLSchema<\/span>({<\/span>\r\n  query<\/span>:<\/span> RootQuery<\/span>,<\/span>\r\n});<\/span>\r\n<\/code><\/pre>\n
\u6211\u4eec\u7ee7\u7eed\u5728fields\u7684\u65b9\u6cd5\u90e8\u5206\u6dfb\u52a0\u65b9\u6cd5\u3002<\/p>\n
\u25a0\u83b7\u53d6\u4e00\u6761\u4fe1\u606f<\/h3>\n
    \/**\r\n     * Todo\u60c5\u5831\u53d6\u5f97.\r\n     *\/<\/span>\r\n    \/\/\u30e1\u30bd\u30c3\u30c9\u540d<\/span>\r\n    getTodo<\/span>:<\/span> {<\/span>\r\n     \/\/\u4f7f\u7528\u3059\u308bGraphQL\u578b(\u4e0a\u3067\u8a2d\u5b9a\u3057\u305f\u3084\u3064\u3092\u4f7f\u7528)<\/span>\r\n      type<\/span>:<\/span> TodoType<\/span>,<\/span>\r\n     \/\/\u30e6\u30fc\u30b6\u304c\u5165\u529b\u3059\u308b\u691c\u7d22\u30ef\u30fc\u30c9\u3068\u305d\u306e\u578b<\/span>\r\n      args<\/span>:<\/span> {<\/span> id<\/span>:<\/span> {<\/span> type<\/span>:<\/span> GraphQLID<\/span> }<\/span> },<\/span>\r\n     \/\/\u691c\u7d22\u7d50\u679c\u3069\u3046\u51e6\u7406\u3057\u3066\u4f55\u3092\u8fd4\u3059\u304b<\/span>\r\n      resolve<\/span>(<\/span>parents<\/span>,<\/span> args<\/span>)<\/span> {<\/span>\r\n       \/\/args\u306b\u5165\u308c\u305fID\u3068\u540c\u3058\u3082\u306e\u3092Todo\u5168\u4ef6\u304b\u3089\u63a2\u3059\u2192\u5f53\u3066\u306f\u307e\u3063\u305f\u3082\u306e\u3092\u8fd4\u3059<\/span>\r\n        return<\/span> Todo<\/span>.<\/span>findById<\/span>(<\/span>args<\/span>.<\/span>id<\/span>);<\/span>\r\n      },<\/span>\r\n    },<\/span>\r\n<\/code><\/pre>\n
\u4ee5\u76f8\u540c\u7684\u65b9\u5f0f\u83b7\u53d61\u4e2a\u7c7b\u522b\u4fe1\u606f\u3002<\/p>\n
    \/**\r\n     * category\u60c5\u5831\u53d6\u5f97.\r\n     *\/<\/span>\r\n    getCategory<\/span>:<\/span> {<\/span>\r\n      type<\/span>:<\/span> CategoryType<\/span>,<\/span>\r\n      args<\/span>:<\/span> {<\/span> id<\/span>:<\/span> {<\/span> type<\/span>:<\/span> GraphQLID<\/span> }<\/span> },<\/span>\r\n      resolve<\/span>(<\/span>parents<\/span>,<\/span> args<\/span>)<\/span> {<\/span>\r\n        return<\/span> Category<\/span>.<\/span>findById<\/span>(<\/span>args<\/span>.<\/span>id<\/span>);<\/span>\r\n      },<\/span>\r\n    },<\/span>\r\n<\/code><\/pre>\n
\u83b7\u53d6\u6240\u6709\u7684Todo\u4fe1\u606f<\/h3>\n
\u5982\u679c\u5168\u4ef6\u9000\u8fd8\u7684\u60c5\u51b5\u4e0b\uff0c\u4e0d\u9700\u8981\u8fdb\u884c\u7279\u6b8a\u5904\u7406\uff0c\u6240\u4ee5\u8fd9\u91cc\u76f8\u5bf9\u6bd4\u8f83\u7b80\u5355\u3002<\/p>\n
  \/**\r\n     * \u5168Todo\u60c5\u5831\u306e\u53d6\u5f97.\r\n     *\/<\/span>\r\n    getAllTodo<\/span>:<\/span> {<\/span>\r\n     \/\/\u8fd4\u3063\u3066\u304f\u308b\u30c7\u30fc\u30bf\u306f\u8907\u6570\u3042\u308b\u306e\u3067\u3001\u30ea\u30b9\u30c8\u306b\u306a\u308b<\/span>\r\n      type<\/span>:<\/span> new<\/span> GraphQLList<\/span>(<\/span>TodoType<\/span>),<\/span>\r\n      resolve<\/span>(<\/span>parent<\/span>,<\/span> args<\/span>)<\/span> {<\/span>\r\n        return<\/span> Todo<\/span>.<\/span>find<\/span>({});<\/span>\r\n      },<\/span>\r\n    },<\/span>\r\n<\/code><\/pre>\n
\u51c6\u5907\u65b9\u6cd5\u65f6\uff0c\u4e5f\u8981\u6309\u7167\u76f8\u540c\u7684\u7c7b\u522b\u8fdb\u884c\u3002<\/p>\n
    \/**\r\n     * \u5168Category\u60c5\u5831\u306e\u53d6\u5f97.\r\n     *\/<\/span>\r\n    getAllCategory<\/span>:<\/span> {<\/span>\r\n      type<\/span>:<\/span> new<\/span> GraphQLList<\/span>(<\/span>CategoryType<\/span>),<\/span>\r\n      resolve<\/span>(<\/span>parent<\/span>,<\/span> args<\/span>)<\/span> {<\/span>\r\n        return<\/span> Category<\/span>.<\/span>find<\/span>({});<\/span>\r\n      },<\/span>\r\n    },<\/span>\r\n<\/code><\/pre>\n
8. \u6570\u636e\u7684\u6dfb\u52a0\u3001\u7f16\u8f91\u548c\u5220\u9664<\/h1>\n
\u9996\u5148\u8981\u51c6\u5907\u53d8\u5f02\u6846\u67b6\u3002<\/p>\n
\r\nconst<\/span> Mutation<\/span> =<\/span> new<\/span> GraphQLObjectType<\/span>({<\/span>\r\n  name<\/span>:<\/span> \"<\/span>Mutation<\/span>\"<\/span>,<\/span>\r\n  fields<\/span>:<\/span> {<\/span>\r\n\/\/\u3053\u3053\u306b\u30e1\u30bd\u30c3\u30c9\u3092\u8ffd\u52a0\u3057\u3066\u3044\u304f<\/span>\r\n  },<\/span>\r\n});<\/span>\r\n\r\n\/\/\u5916\u90e8\u304b\u3089\u4f7f\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u3057\u3066\u304a\u304f(\u53d6\u5f97\u306e\u969b\u306b\u66f8\u3044\u305f\u90e8\u5206\u306b\u8ffd\u8a18)<\/span>\r\nmodule<\/span>.<\/span>exports<\/span> =<\/span> new<\/span> GraphQLSchema<\/span>({<\/span>\r\n  query<\/span>:<\/span> RootQuery<\/span>,<\/span>\r\n  mutation<\/span>:<\/span> Mutation<\/span>,<\/span>\r\n});<\/span>\r\n<\/code><\/pre>\n
\u73b0\u5728\u8ba9\u6211\u4eec\u50cf\u5728\u83b7\u53d6\u65f6\u4e00\u6837\uff0c\u5728\u8fd9\u91cc\u6dfb\u52a0\u65b9\u6cd5…<\/p>\n
\u25a0\u6dfb\u52a0\u6570\u636e<\/h3>\n
 \/**\r\n     * Todo\u306e\u8ffd\u52a0\r\n     *\/<\/span>\r\n   \/\/\u30e1\u30bd\u30c3\u30c9\u540d<\/span>\r\n    addTodo<\/span>:<\/span> {<\/span>\r\n     \/\/\u4f7f\u7528\u3059\u308bGraphQL\u578b<\/span>\r\n      type<\/span>:<\/span> TodoType<\/span>,<\/span>\r\n     \/\/\u30e6\u30fc\u30b6\u304c\u5165\u529b\u306e\u5fc5\u8981\u304c\u3042\u308b\u60c5\u5831(\u4eca\u56de\u8ffd\u52a0\u306e\u305f\u3081\u3001\u8ffd\u52a0\u5185\u5bb9\u5168\u3066)<\/span>\r\n      args<\/span>:<\/span> {<\/span>\r\n        title<\/span>:<\/span> {<\/span> type<\/span>:<\/span> GraphQLString<\/span> },<\/span>\r\n        \/\/\u30ab\u30c6\u30b4\u30ea\u3068\u7d10\u3065\u3051\u308b\u305f\u3081\u306b\u5fc5\u8981<\/span>\r\n        categoryId<\/span>:<\/span> {<\/span> type<\/span>:<\/span> GraphQLID<\/span> },<\/span>\r\n        finish<\/span>:<\/span> {<\/span> type<\/span>:<\/span> GraphQLBoolean<\/span> },<\/span>\r\n      },<\/span>\r\n      resolve<\/span>(<\/span>parent<\/span>,<\/span> args<\/span>)<\/span> {<\/span>\r\n       \/\/Todo\u30e2\u30c7\u30eb\u306e\u578b\u306b\u6cbf\u3063\u3066\u3001\u60c5\u5831\u3092\u4f5c\u6210\u3059\u308b<\/span>\r\n        let<\/span> todo<\/span> =<\/span> new<\/span> Todo<\/span>({<\/span>\r\n          title<\/span>:<\/span> args<\/span>.<\/span>title<\/span>,<\/span>\r\n          categoryId<\/span>:<\/span> args<\/span>.<\/span>categoryId<\/span>,<\/span>\r\n          finish<\/span>:<\/span> false<\/span>,<\/span>\r\n        });<\/span>\r\n        \/\/\u4e0a\u3067\u4f5c\u6210\u3057\u305f\u30c7\u30fc\u30bftodo\u3092DB\u306b\u4fdd\u5b58\u3059\u308b<\/span>\r\n        return<\/span> todo<\/span>.<\/span>save<\/span>();<\/span>\r\n      },<\/span>\r\n    },<\/span>\r\n<\/code><\/pre>\n
    \/**\r\n     * category\u306e\u8ffd\u52a0.\r\n     *\/<\/span>\r\n    addCategory<\/span>:<\/span> {<\/span>\r\n      type<\/span>:<\/span> CategoryType<\/span>,<\/span>\r\n      args<\/span>:<\/span> {<\/span>\r\n        name<\/span>:<\/span> {<\/span> type<\/span>:<\/span> GraphQLString<\/span> },<\/span>\r\n      },<\/span>\r\n      resolve<\/span>(<\/span>parent<\/span>,<\/span> args<\/span>)<\/span> {<\/span>\r\n        let<\/span> category<\/span> =<\/span> new<\/span> Category<\/span>({<\/span>\r\n          name<\/span>:<\/span> args<\/span>.<\/span>name<\/span>,<\/span>\r\n        });<\/span>\r\n        return<\/span> category<\/span>.<\/span>save<\/span>();<\/span>\r\n      },<\/span>\r\n    },<\/span>\r\n<\/code><\/pre>\n
\u25a0\u6570\u636e\u7f16\u8f91<\/h3>\n
\u5982\u679c\u5c06\u5176\u5199\u5728Mutation\u5185\u90e8\u4e5f\u53ef\u4ee5\u3002<\/p>\n
   \/**\r\n     * Todo\u306e\u66f4\u65b0.\r\n     * @remarks \u9805\u76ee\u540d\u3001\u30ab\u30c6\u30b4\u30ea\u7de8\u96c6\u53ef\u80fd\r\n     *\/<\/span>\r\n    updateTodo<\/span>:<\/span> {<\/span>\r\n     \/\/\u4f7f\u3046GraphQL\u578b<\/span>\r\n      type<\/span>:<\/span> TodoType<\/span>,<\/span>\r\n     \/\/\u30e6\u30fc\u30b6\u304c\u5165\u529b\u3059\u308b\u60c5\u5831<\/span>\r\n      args<\/span>:<\/span> {<\/span>\r\n        \/\/\u203b\u6ce8\u610f\uff01<\/span>\r\n        id<\/span>:<\/span> {<\/span> type<\/span>:<\/span> new<\/span> GraphQLNonNull<\/span>(<\/span>GraphQLID<\/span>)<\/span> },<\/span>\r\n        title<\/span>:<\/span> {<\/span> type<\/span>:<\/span> GraphQLString<\/span> },<\/span>\r\n        categoryId<\/span>:<\/span> {<\/span> type<\/span>:<\/span> GraphQLID<\/span> },<\/span>\r\n      },<\/span>\r\n      resolve<\/span>(<\/span>parent<\/span>,<\/span> args<\/span>)<\/span> {<\/span>\r\n        \/\/\u4e00\u65e6\u7a7a\u306e\u9023\u60f3\u914d\u5217\u3092\u6e96\u5099<\/span>\r\n        let<\/span> updateTodo<\/span> =<\/span> {};<\/span>\r\n        \/\/\u5165\u529b\u3057\u305f\u30bf\u30a4\u30c8\u30eb\u304c\u3042\u308c\u3070\u3001updateTodo\u306etitle\u306b\u5165\u529b\u30c7\u30fc\u30bf\u3092\u5165\u308c\u308b<\/span>\r\n        args<\/span>.<\/span>title<\/span> &&<\/span> (<\/span>updateTodo<\/span>.<\/span>title<\/span> =<\/span> args<\/span>.<\/span>title<\/span>);<\/span>\r\n        \/\/\u5165\u529b\u3057\u305f\u30ab\u30c6\u30b4\u30ea\u304c\u3042\u308c\u3070\u3001updateTodo\u306ecategory\u306b\u5165\u529b\u30c7\u30fc\u30bf\u3092\u5165\u308c\u308b<\/span>\r\n        args<\/span>.<\/span>categoryId<\/span> &&<\/span> (<\/span>updateTodo<\/span>.<\/span>categoryId<\/span> =<\/span> args<\/span>.<\/span>categoryId<\/span>);<\/span>\r\n        \/\/\u8a72\u5f53\u306eTodo\u306bupdateTodo\u306e\u60c5\u5831\u3092\u4e0a\u66f8\u304d<\/span>\r\n        \/\/findByIdAndUpdate\u3068\u3044\u3046\u5143\u3005\u3042\u308b\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528<\/span>\r\n        return<\/span> Todo<\/span>.<\/span>findByIdAndUpdate<\/span>(<\/span>args<\/span>.<\/span>id<\/span>,<\/span> updateTodo<\/span>,<\/span> {<\/span>\r\n          \/\/\u66f4\u65b0\u3057\u305f\u30c7\u30fc\u30bf\u3092\u8fd4\u3059<\/span>\r\n          new<\/span>:<\/span> true<\/span>,<\/span>\r\n        });<\/span>\r\n      },<\/span>\r\n    },<\/span>\r\n<\/code><\/pre>\n
\u8bf7\u6ce8\u610f\uff01\u6709\u4e00\u4e2a\u65b0\u7684\u7c7b\u578b\u51fa\u73b0\u4e86\uff0c\u8bf7\u5728schema.js\u6587\u4ef6\u7684\u9876\u90e8\u5bfc\u5165GraphQL\u7c7b\u578b\u7684\u5bfc\u5165\u8bed\u53e5\u4e2d\u6dfb\u52a0\u5b83\uff01\u8fd9\u4e2a\u65b0\u7c7b\u578b\u53eb\u505a”GraphQLNonNull”\uff0c\u7528\u4e8e\u5728\u9700\u8981\u8bbe\u7f6e”\u8be5\u5b57\u6bb5\u4e0d\u80fd\u4e3a\u7a7a”\u65f6\u4f7f\u7528\u3002\uff08\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u7531\u4e8e\u6ca1\u6709ID\uff0c\u65e0\u6cd5\u786e\u5b9a\u8981\u66f4\u65b0\u54ea\u4e2a\u5f85\u529e\u4e8b\u9879\uff0c\u6240\u4ee5\u8fd9\u662f\u5fc5\u9700\u7684\u3002\uff09<\/p>\n
const<\/span> {<\/span>\r\n  GraphQLObjectType<\/span>,<\/span>\r\n  GraphQLID<\/span>,<\/span>\r\n  GraphQLString<\/span>,<\/span>\r\n  GraphQLBoolean<\/span>,<\/span>\r\n  GraphQLSchema<\/span>,<\/span>\r\n  GraphQLList<\/span>,<\/span>\r\n\/\/\u8ffd\u52a0<\/span>\r\n  GraphQLNonNull<\/span>,<\/span>\r\n}<\/span> =<\/span> graphql<\/span>;<\/span>\r\n<\/code><\/pre>\n
\u6211\u4eec\u5c06\u7c7b\u522b\u7684\u66f4\u65b0\u65b9\u6cd5\u4e5f\u540c\u6837\u6dfb\u52a0\u8fdb\u53bb\u3002<\/p>\n
    \/**\r\n     * category\u306e\u66f4\u65b0.\r\n     *\/<\/span>\r\n    updateCategory<\/span>:<\/span> {<\/span>\r\n      type<\/span>:<\/span> CategoryType<\/span>,<\/span>\r\n      args<\/span>:<\/span> {<\/span>\r\n        id<\/span>:<\/span> {<\/span> type<\/span>:<\/span> new<\/span> GraphQLNonNull<\/span>(<\/span>GraphQLID<\/span>)<\/span> },<\/span>\r\n        name<\/span>:<\/span> {<\/span> type<\/span>:<\/span> GraphQLString<\/span> },<\/span>\r\n      },<\/span>\r\n      resolve<\/span>(<\/span>parent<\/span>,<\/span> args<\/span>)<\/span> {<\/span>\r\n        let<\/span> updateCategory<\/span> =<\/span> {};<\/span>\r\n        args<\/span>.<\/span>name<\/span> &&<\/span> (<\/span>updateCategory<\/span>.<\/span>name<\/span> =<\/span> args<\/span>.<\/span>name<\/span>);<\/span>\r\n        return<\/span> Category<\/span>.<\/span>findByIdAndUpdate<\/span>(<\/span>args<\/span>.<\/span>id<\/span>,<\/span> updateCategory<\/span>,<\/span> {<\/span>\r\n          new<\/span>:<\/span> true<\/span>,<\/span>\r\n        });<\/span>\r\n      },<\/span>\r\n    },<\/span>\r\n<\/code><\/pre>\n
\u6b64\u5916\uff0c\u6211\u5011\u9084\u8981\u5728To-do\u5b8c\u6210\u6642\u5c07finish\u8a2d\u70batrue\uff0c\u56e0\u6b64\u6211\u5011\u9700\u8981\u65b0\u589e\u8a72\u65b9\u6cd5\u3002<\/p>\n
   \/**\r\n     * Todo\u306e\u5b8c\u4e86.\r\n     *\/<\/span>\r\n    finishTodo<\/span>:<\/span> {<\/span>\r\n      type<\/span>:<\/span> TodoType<\/span>,<\/span>\r\n      args<\/span>:<\/span> {<\/span>\r\n        id<\/span>:<\/span> {<\/span> type<\/span>:<\/span> new<\/span> GraphQLNonNull<\/span>(<\/span>GraphQLID<\/span>)<\/span> },<\/span>\r\n        finish<\/span>:<\/span> {<\/span> type<\/span>:<\/span> GraphQLBoolean<\/span> },<\/span>\r\n      },<\/span>\r\n      resolve<\/span>(<\/span>parent<\/span>,<\/span> args<\/span>)<\/span> {<\/span>\r\n        let<\/span> finishTodo<\/span> =<\/span> {};<\/span>\r\n        finishTodo<\/span>.<\/span>finish<\/span> =<\/span> args<\/span>.<\/span>finish<\/span>;<\/span>\r\n        return<\/span> Todo<\/span>.<\/span>findByIdAndUpdate<\/span>(<\/span>args<\/span>.<\/span>id<\/span>,<\/span> finishTodo<\/span>,<\/span> {<\/span>\r\n          new<\/span>:<\/span> true<\/span>,<\/span>\r\n        });<\/span>\r\n      },<\/span>\r\n    },<\/span>\r\n<\/code><\/pre>\n
\u25a0\u5220\u9664\u6570\u636e<\/h3>\n
\u53ea\u8981\u5728Mutation\u4e2d\u5199\u4e0b\u76f8\u540c\u7684\u4e1c\u897f\uff0c\u5c31\u53ef\u4ee5\u4e86\u3002
\n\u53ea\u8981\u8f93\u5165ID\uff0c\u5c31\u77e5\u9053\u8981\u5220\u9664\u7684\u6570\u636e\uff0c\u6240\u4ee5\u5904\u7406\u8d77\u6765\u5e76\u4e0d\u662f\u5f88\u56f0\u96be\u3002<\/p>\n
 \/**\r\n     * Todo\u306e\u524a\u9664.\r\n     *\/<\/span>\r\n    deleteTodo<\/span>:<\/span> {<\/span>\r\n      type<\/span>:<\/span> TodoType<\/span>,<\/span>\r\n      args<\/span>:<\/span> {<\/span>\r\n        id<\/span>:<\/span> {<\/span> type<\/span>:<\/span> new<\/span> GraphQLNonNull<\/span>(<\/span>GraphQLID<\/span>)<\/span> },<\/span>\r\n      },<\/span>\r\n      resolve<\/span>(<\/span>parent<\/span>,<\/span> args<\/span>)<\/span> {<\/span>\r\n        \/\/findByIdAndRemove\u3068\u3044\u3046\u5143\u3005\u3042\u308b\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528<\/span>\r\n        return<\/span> Todo<\/span>.<\/span>findByIdAndRemove<\/span>(<\/span>args<\/span>.<\/span>id<\/span>);<\/span>\r\n      },<\/span>\r\n    },<\/span>\r\n<\/code><\/pre>\n
   \/**\r\n     * category\u306e\u524a\u9664.\r\n     *\/<\/span>\r\n    deleteCategory<\/span>:<\/span> {<\/span>\r\n      type<\/span>:<\/span> CategoryType<\/span>,<\/span>\r\n      args<\/span>:<\/span> {<\/span>\r\n        id<\/span>:<\/span> {<\/span> type<\/span>:<\/span> new<\/span> GraphQLNonNull<\/span>(<\/span>GraphQLID<\/span>)<\/span> },<\/span>\r\n      },<\/span>\r\n      resolve<\/span>(<\/span>parent<\/span>,<\/span> args<\/span>)<\/span> {<\/span>\r\n        return<\/span> Category<\/span>.<\/span>findByIdAndRemove<\/span>(<\/span>args<\/span>.<\/span>id<\/span>);<\/span>\r\n      },<\/span>\r\n    },<\/span>\r\n<\/code><\/pre>\n
\u8bd5\u8bd5\u770b\u662f\u5426\u8fdb\u884c\u987a\u5229\u3002<\/h1>\n
\"image.png\"<\/div>\n
\"image.png\"<\/div>\n
\u63a5\u4e0b\u6765\uff0c\u5728\u8fd9\u4e2a\u9875\u9762\u7684\u5de6\u4fa7\uff0c\u6211\u5c06\u6309\u7167\u4e0b\u9762\u7684\u89c4\u5219\u5c06\u4ee3\u7801\u653e\u5728\u4e00\u7247\u6742\u4e71\u7684\u6587\u5b57\u533a\u57df\u4e2d\uff08\u53ef\u4ee5\u5220\u9664\u7070\u8272\u7684\u6587\u5b57\uff09\u3002<\/p>\n
\u30fb\u53d6\u5f97\u2192query\u3067\u56f2\u3080\uff0f\u8ffd\u52a0\u3001\u7de8\u96c6\u3001\u524a\u9664\u2192mutation\u3067\u56f2\u3080\r\n\u30fb()\u5185\u2192\u9001\u308b\u30c7\u30fc\u30bf(args\u3067\u8a2d\u5b9a\u3057\u305f\u3082\u306e)\r\n\u30fb{}\u5185\u2192\u8fd4\u3057\u3066\u6b32\u3057\u3044\u30c7\u30fc\u30bf\r\n\r\n\u30d1\u30bf\u30fc\u30f3\uff11\uff1a\u30c7\u30fc\u30bf\u306e\u5168\u4ef6\u53d6\u5f97\r\nquery{\r\n\u30e1\u30bd\u30c3\u30c9\u540d{\r\n \u8fd4\u3057\u3066\u6b32\u3057\u3044\u30c7\u30fc\u30bf\r\n }\r\n}\r\n\r\n\u30d1\u30bf\u30fc\u30f3\uff12\uff1a\u30c7\u30fc\u30bf\u30921\u4ef6\u53d6\u5f97(args\u306b\u5024\u3092\u5165\u308c\u308b\u5fc5\u8981\u304c\u3042\u308b\u969b)\r\nquery{\r\n \u30e1\u30bd\u30c3\u30c9\u540d(id:\u691c\u7d22ID\u306e\u5024){\r\n\u3000\u3000\u8fd4\u3057\u3066\u6b32\u3057\u3044\u30c7\u30fc\u30bf\r\n\u3000}\r\n}\r\n\u203bid\u304cuserId\u3060\u3063\u305f\u308a\u5909\u6570\u540d\u306f\u81ea\u8eab\u306e\u8a2d\u5b9a\u3057\u305f\u540d\u524d\u306b\u5909\u3048\u3066\u304f\u3060\u3055\u3044\u3002\r\n\r\n\u30d1\u30bf\u30fc\u30f3\uff13\uff1amutation\u306e\u5834\u5408\r\nmutation{\r\n \u30e1\u30bd\u30c3\u30c9\u540d(\u9001\u308b\u30c7\u30fc\u30bf\u5909\u6570\u540d:\u9001\u308b\u30c7\u30fc\u30bf\u5024){\r\n\u3000\u3000\u8fd4\u3057\u3066\u6b32\u3057\u3044\u30c7\u30fc\u30bf\r\n\u3000}\r\n}\r\n<\/code><\/pre>\n
\u5728\u8f93\u5165\u540e\uff0c\u70b9\u51fb\u5de6\u4e0a\u65b9\u7684\u300c\u25b8\u300d\uff0c\u5982\u679c\u6210\u529f\u83b7\u53d6\u5230\u6570\u636e\uff0c\u5219\u8868\u793a\u6210\u529f\u3002\u8bf7\u5c1d\u8bd5\u9010\u4e2a\u5c1d\u8bd5\u6bcf\u4e2a\u65b9\u6cd5\u3002<\/p>\n
\/\/\u30d1\u30bf\u30fc\u30f3\uff11\u306e\u5165\u529b\u4f8b<\/span>\r\nquery<\/span>{<\/span>\r\n  getAllTodo<\/span>{<\/span>\r\n    title<\/span>\r\n }<\/span>\r\n}<\/span>\r\n\r\n\/\/\u30d1\u30bf\u30fc\u30f3\uff12\u306e\u5165\u529b\u4f8b<\/span>\r\n\/\/\u203b\u3053\u306e\u3088\u3046\u306b\u30cd\u30b9\u30c8\u3055\u305b\u3066Todo\u306e\u30bf\u30a4\u30c8\u30eb\u3068\u5bfe\u5fdc\u3059\u308b\u30ab\u30c6\u30b4\u30ea\u306e\u540d\u524d\u7b49\u3092\u53d6\u5f97\u3082\u53ef\u80fd<\/span>\r\nquery<\/span>{<\/span>\r\n  getTodo<\/span>(<\/span>id<\/span>:<\/span>\"<\/span>DB\u3067\u78ba\u8a8d\u3057\u305fTodo\u306eID<\/span>\"<\/span>){<\/span>\r\n    title<\/span>\r\n    category<\/span>{<\/span>\r\n     name<\/span>  \r\n  }<\/span>\r\n }<\/span>\r\n}<\/span>\r\n\r\n\/\/\u30d1\u30bf\u30fc\u30f3\uff13\u306e\u5165\u529b\u4f8b<\/span>\r\nmutation<\/span>{<\/span>\r\n  addTodo<\/span>(<\/span>title<\/span>:<\/span>\"<\/span>\u65b0\u3057\u3044Todo<\/span>\"<\/span>,<\/span>\r\n  categoryId<\/span>:<\/span>\"<\/span>\u30ab\u30c6\u30b4\u30eaID<\/span>\"<\/span>,<\/span>\r\n  finish<\/span>:<\/span>false<\/span>){<\/span>\r\n    title<\/span>\r\n  }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u203b\u5e94\u7528
\n(1)\u540c\u65f6\u89e6\u53d1\u591a\u4e2a\u65b9\u6cd5
\n\u5c06\u5b83\u4eec\u6392\u5217\u8d77\u6765\u89e6\u53d1\u5373\u53efGraphiQL
\nquery{
\ngetAllTodo{
\ntitle
\n}
\ngetAllCategory{
\nname
\n}
\n}<\/p>\n
(2)\u5982\u679c\u60f3\u5148\u5c06\u8f93\u5165\u6570\u636e\u5b58\u50a8\u5230\u53d8\u91cf\u4e2d<\/p>\n
GraphiQL
\n\/\/query($\u53d8\u91cf\u540d:GraphQL\u7c7b\u578b){\u65b9\u6cd5\u540d(\u53d8\u91cf\u540d:$\u53d8\u91cf\u540d){\u60f3\u8981\u8fd4\u56de\u7684\u6570\u636e}}
\n\/\/\u5982\u679c\u662f\u5fc5\u8981\u7684\uff0c\u5219\u5728\u7c7b\u578b\u540e\u9762\u52a0\u4e0a!\uff0c\u5426\u5219\u4e0d\u9700\u8981
\nquery($id:ID!){
\ngetTodo(id:$id){
\ntitle
\nfinish
\n}
\n}<\/p>\n
\u5728\u5de6\u4e0b\u65b9\u7684\u201cQUERY VARIABLES\u201d\u4e2d\u8f93\u5165\u5177\u4f53\u7684\u503c<\/p>\n
GraphiQL(QUERY VARIABLE)
\n\/\/\u6ce8\u610f\uff0c\u5c06\u53d8\u91cf\u90e8\u5206\u7528””\u62ec\u8d77\u6765\uff01
\n{“id”:”\u60f3\u8981\u83b7\u53d6\u7684Todo\u5217\u8868\u7684ID”}<\/p>\n
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