在MongoDB上发帖，我做错了什么？

Question

我试图发布一个新的条目到MongoDB,我知道这个问题是我在服务器文件中调用我的路由的地方,但我不知道如何解决这个问题。我需要能够测试在邮递员的API和张贴到数据库。

我得到以下错误：

/users/ryan/desktop/leasequery/operations-backend/node_modules/express/lib/router/index.js:458抛出新的TypeError（“router.use（）需要一个中间件函数，但得到了一个”+gettype(fn))^

TypeError：router.use（）需要一个中间件函数，但在function.use(/users/ryan/desktop/leasequery/operations-backend/node_modules/express/lib/router/index.js:458:13)在function。(/users/ryan/desktop/leasequery/operations-backend/node_modules/express/lib/application.js:220:21)位于array.foreach（）位于function.use(/users/ryan/desktop/leasequery/operations-backend/node_modules/express/lib/application.js:217:7)位于object.(/users/ryan/desktoes/leasequery/operations-backend/server.js:12:5)在module._compile（内部/module/cjs/loader.js:778:30)在object.module._extensions.js（内部/module/cjs/loader.js:789:10)在module.load（内部/module/cjs/loader.js:653:32)在tryModuleLoad（内部/module/cjs/loader.js:593:12)在function.module.load（

我正在使用一个中间件（express-validator）

server.js

const express = require("express");
const connectDB = require("./config/db");

const app = express();

connectDB();

app.use(express.json({ extended: false }));

app.get("/", (req, res) => res.json({ msg: "Welcome to Operations" }));

app.use("/api/status", require("./routes/status"));

const PORT = process.env.PORT || 5000;

app.listen(PORT, () => console.log(`Server listening on Port ${PORT}`));

路由/状态.js

const express = require("express");
const router = express.Router();
const { check, validationResult } = require("express-validator");

const Status = require("../models/Status");

router.post(
  "/",
  [
    check("name", "Please Add Name")
      .not()
      .isEmpty(),
    check("date", "Please add date")
      .not()
      .isEmpty(),
    check("comment", "Please add comment")
      .not()
      .isEmpty()
  ],
  async (req, res) => {
    const errors = validationResult(req);
    if (!errors.isEmpty()) {
      return res.status(400).json({ errors: errors.array() });
    }

    const { name, date, comment } = req.body;

    try {
      entry = new Entry({
        name,
        date,
        comment
      });

      await entry.save();
    } catch (err) {
      console.error(err.message);
      res.status(500).send("Server Error...");
    }
  }
);

models/status.js

const mongoose = require("mongoose");

const StatusSchema = mongoose.Schema({
  name: {
    type: String,
    required: true
  },
  date: {
    type: Date,
    required: true
  },
  comment: {
    type: String,
    required: true
  }
});

module.exports = mongoose.model("status", StatusSchema);

Answer 1

路由/状态.js

const router = express.Router();
const { check, validationResult } = require("express-validator");

const Status = require("../models/Status");

router.post(
  "/",
  [
    check("name", "Please Add Name")
      .not()
      .isEmpty(),
    check("date", "Please add date")
      .not()
      .isEmpty(),
    check("comment", "Please add comment")
      .not()
      .isEmpty()
  ],
  async (req, res) => {
    const errors = validationResult(req);
    if (!errors.isEmpty()) {
      return res.status(400).json({ errors: errors.array() });
    }

    const { name, date, comment } = req.body;

    try {
      entry = new Entry({
        name,
        date,
        comment
      });

      await entry.save();
    } catch (err) {
      console.error(err.message);
      res.status(500).send("Server Error...");
    }
  }
);

module.exports = router;