{"id":21591,"date":"2024-01-02T12:01:22","date_gmt":"2024-01-02T12:01:22","guid":{"rendered":"https:\/\/server.hk\/blog\/21591\/"},"modified":"2024-11-14T10:30:10","modified_gmt":"2024-11-14T02:30:10","slug":"mongodb-glossary-resolver","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/21591\/","title":{"rendered":"MongoDB \u8a5e\u5f59\u8868 – Resolver"},"content":{"rendered":"

MongoDB \u8a5e\u5f59\u8868 – Resolver<\/h1>\n

\u5728\u6578\u64da\u5eab\u7684\u4e16\u754c\u4e2d\uff0cMongoDB \u56e0\u5176\u9748\u6d3b\u6027\u3001\u53ef\u64f4\u5c55\u6027\u548c\u6613\u7528\u6027\u800c\u7372\u5f97\u4e86\u986f\u8457\u7684\u666e\u53ca\u3002\u8207\u4efb\u4f55\u6280\u8853\u4e00\u6a23\uff0cMongoDB \u4e5f\u6709\u4e00\u5957\u7528\u6236\u9700\u8981\u4e86\u89e3\u7684\u8853\u8a9e\uff0c\u4ee5\u4fbf\u5145\u5206\u5229\u7528\u5b83\u3002\u5176\u4e2d\u4e00\u500b\u8853\u8a9e\u662f\u300cResolver\u300d\u3002<\/p>\n

\u4ec0\u9ebc\u662f MongoDB \u4e2d\u7684 Resolver\uff1f<\/h2>\n

\u5728 MongoDB \u4e2d\uff0cResolver \u6307\u7684\u662f\u4e00\u500b\u51fd\u6578\u6216\u4e00\u7d44\u51fd\u6578\uff0c\u8ca0\u8cac\u89e3\u6790\u91dd\u5c0d\u7279\u5b9a\u6578\u64da\u6e90\u7684\u67e5\u8a62\u3002\u5b83\u4f5c\u70ba\u5ba2\u6236\u7aef\u61c9\u7528\u7a0b\u5e8f\u8207\u6578\u64da\u5eab\u4e4b\u9593\u7684\u6a4b\u6a11\uff0c\u8655\u7406\u63d0\u53d6\u548c\u64cd\u4f5c\u6578\u64da\u6240\u9700\u7684\u908f\u8f2f\u3002<\/p>\n

Resolvers \u5728 GraphQL \u4e2d\u626e\u6f14\u8457\u81f3\u95dc\u91cd\u8981\u7684\u89d2\u8272\uff0cGraphQL \u662f\u4e00\u7a2e MongoDB \u652f\u6301\u7684 API \u67e5\u8a62\u8a9e\u8a00\u3002GraphQL \u5141\u8a31\u5ba2\u6236\u7aef\u6307\u5b9a\u6240\u9700\u7684\u7cbe\u78ba\u6578\u64da\uff0c\u800c resolvers \u8ca0\u8cac\u5f9e\u6578\u64da\u5eab\u4e2d\u63d0\u53d6\u9019\u4e9b\u6578\u64da\u3002<\/p>\n

Resolvers \u5982\u4f55\u904b\u4f5c\uff1f<\/h2>\n

MongoDB \u4e2d\u7684 Resolvers \u4f5c\u70ba GraphQL \u67b6\u69cb\u7684\u4e00\u90e8\u5206\u9032\u884c\u5b9a\u7fa9\u3002\u67b6\u69cb\u4e2d\u7684\u6bcf\u500b\u5b57\u6bb5\u90fd\u6709\u4e00\u500b\u5c0d\u61c9\u7684 resolver \u51fd\u6578\uff0c\u8a72\u51fd\u6578\u6c7a\u5b9a\u8a72\u5b57\u6bb5\u7684\u6578\u64da\u61c9\u5982\u4f55\u63d0\u53d6\u6216\u64cd\u4f5c\u3002<\/p>\n

\u7576\u5ba2\u6236\u7aef\u5411\u670d\u52d9\u5668\u767c\u9001\u67e5\u8a62\u6642\uff0cresolver \u51fd\u6578\u6703\u6309\u7167\u7279\u5b9a\u7684\u9806\u5e8f\u57f7\u884c\u4ee5\u6eff\u8db3\u8acb\u6c42\u3002\u6839\u5b57\u6bb5\u7684 resolver \u9996\u5148\u88ab\u8abf\u7528\uff0c\u7136\u5f8c\u89f8\u767c\u5d4c\u5957\u5b57\u6bb5\u7684 resolver \u57f7\u884c\u3002<\/p>\n

Resolvers \u53ef\u4ee5\u4f7f\u7528 MongoDB \u9a45\u52d5\u7a0b\u5e8f\u8207 MongoDB \u6578\u64da\u5eab\u4ea4\u4e92\uff0c\u8a72\u9a45\u52d5\u7a0b\u5e8f\u63d0\u4f9b\u4e86\u4e00\u7d44\u67e5\u8a62\u3001\u66f4\u65b0\u548c\u522a\u9664\u6578\u64da\u7684\u65b9\u6cd5\u3002resolver \u51fd\u6578\u53ef\u4ee5\u5229\u7528\u9019\u4e9b\u65b9\u6cd5\u5f9e\u6578\u64da\u5eab\u6aa2\u7d22\u6240\u9700\u7684\u6578\u64da\u4e26\u5c07\u5176\u8fd4\u56de\u7d66\u5ba2\u6236\u7aef\u3002<\/p>\n

MongoDB \u4e2d Resolver \u7684\u793a\u4f8b<\/h2>\n

\u8b93\u6211\u5011\u8003\u616e\u4e00\u500b\u793a\u4f8b\uff0c\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba\u300cusers\u300d\u7684 MongoDB \u96c6\u5408\uff0c\u5176\u7d50\u69cb\u5982\u4e0b\uff1a<\/p>\n

{\r\n  \"_id\": ObjectId(\"60a7e8e8e8e8e8e8e8e8e8e8\"),\r\n  \"name\": \"John Doe\",\r\n  \"age\": 30,\r\n  \"email\": \"johndoe@example.com\"\r\n}<\/code><\/pre>\n
\u8981\u63d0\u53d6\u7279\u5b9a ID \u7684\u7528\u6236\u59d3\u540d\uff0c\u6211\u5011\u53ef\u4ee5\u5b9a\u7fa9\u4e00\u500b resolver \u51fd\u6578\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n
const resolvers = {\r\n  Query: {\r\n    user: async (_, { id }) => {\r\n      const user = await db.collection('users').findOne({ _id: ObjectId(id) });\r\n      return user.name;\r\n    }\r\n  }\r\n};<\/code><\/pre>\n
\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0cresolver \u51fd\u6578\u5c07\u7528\u6236\u7684 ID \u4f5c\u70ba\u53c3\u6578\uff0c\u4e26\u4f7f\u7528 MongoDB \u9a45\u52d5\u7a0b\u5e8f\u67e5\u8a62\u300cusers\u300d\u96c6\u5408\u3002\u5b83\u6aa2\u7d22\u5177\u6709\u6307\u5b9a ID \u7684\u7528\u6236\u4e26\u8fd4\u56de\u8a72\u7528\u6236\u7684\u59d3\u540d\u3002<\/p>\n
\u7d50\u8ad6<\/h2>\n
Resolvers \u662f MongoDB \u548c GraphQL \u7684\u91cd\u8981\u7d44\u6210\u90e8\u5206\uff0c\u4f7f\u5f97\u6578\u64da\u7684\u63d0\u53d6\u548c\u64cd\u4f5c\u66f4\u52a0\u9ad8\u6548\u3002\u4e86\u89e3 resolvers \u7684\u904b\u4f5c\u65b9\u5f0f\u53ca\u5176\u5b9a\u7fa9\u65b9\u6cd5\u5c0d\u65bc\u69cb\u5efa\u7a69\u5065\u4e14\u9ad8\u6548\u7684 MongoDB \u61c9\u7528\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n
\u6b32\u4e86\u89e3\u66f4\u591a\u6709\u95dc MongoDB \u53ca\u5176\u529f\u80fd\u7684\u4fe1\u606f\uff0c\u60a8\u53ef\u4ee5\u8a2a\u554f Server.HK<\/a> \u7db2\u7ad9\uff0c\u9019\u662f\u4e00\u5bb6\u9818\u5148\u7684 VPS \u4e3b\u6a5f\u516c\u53f8\uff0c\u63d0\u4f9b\u53ef\u9760\u4e14\u53ef\u64f4\u5c55\u7684\u4e3b\u6a5f\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
MongoDB \u8a5e\u5f59\u8868 &#82...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-21591","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21591","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=21591"}],"version-history":[{"count":2,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21591\/revisions"}],"predecessor-version":[{"id":23848,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21591\/revisions\/23848"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=21591"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=21591"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=21591"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}