课程名称： 新版 Node.js+Express+Koa2 开发Web Server博客

课程章节： 10-12 开发路由

课程讲师： 双越
routes/blog.js

const express = require("express");
const router = express.Router();
const {
  getList,
  getDetail,
  newBlog,
  updateBlog,
  delBlog,
} = require("../controller/blog.js");

const { SuccessModel, ErrorModel } = require("../model/resModel.js");
const loginCheck = require("../middleware/loginCheck.js");

// 博客列表
router.get("/list", (req, res, next) => {
  let author = req.query.author || "";
  const keyword = req.query.keyword || "";

  if (req.query.isadmin) {
    // 管理员界面
    if (req.session.username == null) {
      // 未登录
      res.json(new ErrorModel("未登录"));

      return;
    }

    // 强制查询自己的博客
    author = req.session.username;
  }

  // 获取数据库中的博客列表
  const result = getList(author, keyword);

  // 返回 promise
  return result.then((listData) => {
    res.json(new SuccessModel(listData, "这是获取博客列表的接口"));
  });
});

// 博客详情
router.get("/detail", (req, res, next) => {
  const result = getDetail(req.query.id);
  return result.then((data) => {
    res.json(new SuccessModel(data, "这是获取博客详情的接口"));
  });
});

// 新建一篇博客
router.post("/new", loginCheck, (req, res, next) => {
  req.body.author = req.session.username;
  const result = newBlog(req.body);
  return result.then((data) => {
    res.json(new SuccessModel(data, "这是新建博客的接口"));
  });
});

// 更新一篇博客
router.post("/update", loginCheck, (req, res, next) => {
  const result = updateBlog(req.query.id, req.body);

  return result.then((val) => {
    // 判断是否成功
    if (val) {
      res.json(new SuccessModel("这是更新博客的接口"));
    } else {
      res.json(new ErrorModel("更新博客失败"));
    }
  });
});

// 删除一篇博客
router.post("/del", loginCheck, (req, res, next) => {
  const author = req.session.username;
  let result = delBlog(req.query.id, author);

  return result.then((val) => {
    // 判断是否成功
    if (val) {
      res.json(new SuccessModel("这是删除博客的接口"));
    } else {
      res.json(new ErrorModel("删除博客失败"));
    }
  });
});

module.exports = router;

课程内容：

1. 对博客路由的重构