Express接口案例——完成文章评论相关的接口

一、评论的Model

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{"comment": {"id": 1,"createdAt": "2016-02-18T03:22:56.637Z","updatedAt": "2016-02-18T03:22:56.637Z","body": "It takes a Jacobian","author": {"username": "jake","bio": "I work at statefarm","image": "https://i.stack.imgur.com/xHWG8.jpg","following": false}}
}

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二、评论文章

建立Model 即Comment
验证token 即auth
数据校验，一是校验数据是否不为空、合法，二是校验数据是否符合业务逻辑。（只要数据校验不符合，就发送失败的响应）
交给控制层Controller的函数处理，发送成功的响应

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{"comment": {"_id": "610a73941b8d4e7b08606d7a","body": "写的不错啊","createdAt": "2021-08-04T11:01:40.018Z","updatedAt": "2021-08-04T11:01:40.018Z","author": {"bio": null,"image": null,"_id": "610a4ab37155ad0874cae8cf","username": "admin","email": "admin@admin.admin","createdAt": "2021-08-04T08:07:15.794Z","updatedAt": "2021-08-04T08:07:15.794Z","__v": 0},"articleId": {"tagList": ["vuejs","angularjs"],"favoritesCount": 0,"_id": "610a4b487155ad0874cae8d5","title": "我是小天才zep","description": "zeppppp","body": "这是内容，水水水水水水水","createdAt": "2021-08-04T08:09:44.541Z","updatedAt": "2021-08-04T08:09:44.541Z","author": "610a4ab37155ad0874cae8cf","__v": 0},"__v": 0}
}

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三、从指定文章中获取评论

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{"comments": [{"_id": "610a5f07dfec1b7eb47783d5","body": "It takes a 0","createdAt": "2021-08-04T09:33:59.215Z","updatedAt": "2021-08-04T09:33:59.215Z","author": {"bio": null,"image": null,"_id": "610a4ab37155ad0874cae8cf","username": "admin","email": "admin@admin.admin","createdAt": "2021-08-04T08:07:15.794Z","updatedAt": "2021-08-04T08:07:15.794Z","__v": 0},"articleId": {"tagList": ["vuejs","javaScript","nodejs"],"favoritesCount": 0,"_id": "610a4ba37155ad0874cae8e1","title": "11111","description": "adminzeppppp3","body": "admin这是内容，水水水水水水2水3","createdAt": "2021-08-04T08:11:15.428Z","updatedAt": "2021-08-04T08:11:15.428Z","author": "610a4ab37155ad0874cae8cf","__v": 0},"__v": 0},{"_id": "610a5f1f237f22863c1760dd","body": "It takes a 1","createdAt": "2021-08-04T09:34:23.428Z","updatedAt": "2021-08-04T09:34:23.428Z","author": {"bio": null,"image": null,"_id": "610a4ab37155ad0874cae8cf","username": "admin","email": "admin@admin.admin","createdAt": "2021-08-04T08:07:15.794Z","updatedAt": "2021-08-04T08:07:15.794Z","__v": 0},"articleId": {"tagList": ["vuejs","javaScript","nodejs"],"favoritesCount": 0,"_id": "610a4ba37155ad0874cae8e1","title": "11111","description": "adminzeppppp3","body": "admin这是内容，水水水水水水2水3","createdAt": "2021-08-04T08:11:15.428Z","updatedAt": "2021-08-04T08:11:15.428Z","author": "610a4ab37155ad0874cae8cf","__v": 0},"__v": 0},{"_id": "610a6c7759f07170f4cabd0e","body": "It takes a 1","createdAt": "2021-08-04T10:31:19.389Z","updatedAt": "2021-08-04T10:31:19.389Z","author": {"bio": null,"image": null,"_id": "610a4ab37155ad0874cae8cf","username": "admin","email": "admin@admin.admin","createdAt": "2021-08-04T08:07:15.794Z","updatedAt": "2021-08-04T08:07:15.794Z","__v": 0},"articleId": {"tagList": ["vuejs","javaScript","nodejs"],"favoritesCount": 0,"_id": "610a4ba37155ad0874cae8e1","title": "11111","description": "adminzeppppp3","body": "admin这是内容，水水水水水水2水3","createdAt": "2021-08-04T08:11:15.428Z","updatedAt": "2021-08-04T08:11:15.428Z","author": "610a4ab37155ad0874cae8cf","__v": 0},"__v": 0},{"_id": "610a72036767d2870cceab05","body": "0000000","createdAt": "2021-08-04T10:54:59.432Z","updatedAt": "2021-08-04T10:54:59.432Z","author": {"bio": null,"image": null,"_id": "610a4ab37155ad0874cae8cf","username": "admin","email": "admin@admin.admin","createdAt": "2021-08-04T08:07:15.794Z","updatedAt": "2021-08-04T08:07:15.794Z","__v": 0},"articleId": {"tagList": ["vuejs","javaScript","nodejs"],"favoritesCount": 0,"_id": "610a4ba37155ad0874cae8e1","title": "11111","description": "adminzeppppp3","body": "admin这是内容，水水水水水水2水3","createdAt": "2021-08-04T08:11:15.428Z","updatedAt": "2021-08-04T08:11:15.428Z","author": "610a4ab37155ad0874cae8cf","__v": 0},"__v": 0}]
}