无法保存mongoose文档：架构类型问题

我试图用邮递员保存猫鼬的数据，数据似乎被保存了

但是当我尝试使用API发布时，没有数据被保存

在邮递员中，我发布了如下内容：

标题内容类型：application/json

\var\www\html\Express\nodeauthapp master\app.js

const express = require('express');
const path = require('path');
const bodyParser = require('body-parser');
const cors = require('cors');
const passport = require('passport');
const mongoose = require('mongoose');
const config = require('./config/database');

// Connect To Database
mongoose.connect(config.database);

// On Connection
mongoose.connection.on('connected', () => {
  console.log('Connected to database '+config.database);
});

const app = express();
const products = require('./routes/products');

// Port Number
const port = 3000;

// CORS Middleware
app.use(cors());

// Set Static Folder
app.use(express.static(path.join(__dirname, 'public')));

// Body Parser Middleware
app.use(bodyParser.json());

// Passport Middleware
app.use(passport.initialize());
app.use(passport.session());

require('./config/passport')(passport);

app.use('/users', users);
app.use('/products', products);

// Index Route
app.get('/', (req, res) => {
res.send('Invalid Endpoint');
});

// Start Server
app.listen(port, () => {
  console.log('Server started on port '+port);
});

const express = require('express');
const router = express.Router();
var mongoose = require('mongoose');
const config = require('../config/database');
const Products = require('../models/products');

// Add Categories
router.post('/add', (req, res, next) => {

//res.send('Products addition');
//Create a model folder

   let newProduct = new Products({
        category_name: req.body.category_name,  
        product_name: req.body.product_name,
        product_price: req.body.product_price,
        product_image: req.body.product_image,
        product_desc: req.body.product_desc,
        product_status: req.body.product_status,
        product_createdat: req.body.product_createdat,
        product_updatedat: req.body.product_updatedat
    }); 


   Products.addProduct(newProduct, (err, products) => {
    if(err){
      res.json({success: false, msg:'Product unable to add'});
    } else {
      res.json({success: true, msg:'Products successfuly added!!'});
    }
     });
   });

module.exports = router;

const mongoose = require('mongoose');

const config = require('../config/database');

// Products Schema
const ProductsSchema = mongoose.Schema({
    category_name: {
    type: String
  },
  product_name: {
    type: String,
    //required: true  //had to change this to default
    default: true
  },
  product_price: {
    type: String,
    default: true
  },
  product_image: {
    type: String,
    default: true
  },
   product_desc: {
    type: String,
    default: true
 },
   product_status: {
    type: String,
    default: true
 },
   product_createdat: {
    type: String,
    required: true
 },
   product_updatedat: {
    type: String,
   default: true
 }
});

 const Products = module.exports = mongoose.model('Products', ProductsSchema);


module.exports.addProduct = function(newProduct, callback){
    //newProduct.save(callback);
    newProduct.save(function(err) { 
      // we've updated the dog into the db here if (err) throw err;
    });
}

\var\www\html\Express\nodeauthapp master\routes\products.js

const express = require('express');
const path = require('path');
const bodyParser = require('body-parser');
const cors = require('cors');
const passport = require('passport');
const mongoose = require('mongoose');
const config = require('./config/database');

// Connect To Database
mongoose.connect(config.database);

// On Connection
mongoose.connection.on('connected', () => {
  console.log('Connected to database '+config.database);
});

const app = express();
const products = require('./routes/products');

// Port Number
const port = 3000;

// CORS Middleware
app.use(cors());

// Set Static Folder
app.use(express.static(path.join(__dirname, 'public')));

// Body Parser Middleware
app.use(bodyParser.json());

// Passport Middleware
app.use(passport.initialize());
app.use(passport.session());

require('./config/passport')(passport);

app.use('/users', users);
app.use('/products', products);

// Index Route
app.get('/', (req, res) => {
res.send('Invalid Endpoint');
});

// Start Server
app.listen(port, () => {
  console.log('Server started on port '+port);
});

const express = require('express');
const router = express.Router();
var mongoose = require('mongoose');
const config = require('../config/database');
const Products = require('../models/products');

// Add Categories
router.post('/add', (req, res, next) => {

//res.send('Products addition');
//Create a model folder

   let newProduct = new Products({
        category_name: req.body.category_name,  
        product_name: req.body.product_name,
        product_price: req.body.product_price,
        product_image: req.body.product_image,
        product_desc: req.body.product_desc,
        product_status: req.body.product_status,
        product_createdat: req.body.product_createdat,
        product_updatedat: req.body.product_updatedat
    }); 


   Products.addProduct(newProduct, (err, products) => {
    if(err){
      res.json({success: false, msg:'Product unable to add'});
    } else {
      res.json({success: true, msg:'Products successfuly added!!'});
    }
     });
   });

module.exports = router;

const mongoose = require('mongoose');

const config = require('../config/database');

// Products Schema
const ProductsSchema = mongoose.Schema({
    category_name: {
    type: String
  },
  product_name: {
    type: String,
    //required: true  //had to change this to default
    default: true
  },
  product_price: {
    type: String,
    default: true
  },
  product_image: {
    type: String,
    default: true
  },
   product_desc: {
    type: String,
    default: true
 },
   product_status: {
    type: String,
    default: true
 },
   product_createdat: {
    type: String,
    required: true
 },
   product_updatedat: {
    type: String,
   default: true
 }
});

 const Products = module.exports = mongoose.model('Products', ProductsSchema);


module.exports.addProduct = function(newProduct, callback){
    //newProduct.save(callback);
    newProduct.save(function(err) { 
      // we've updated the dog into the db here if (err) throw err;
    });
}

更新：

\var\www\html\Express\nodeauthapp master\models\products.js

const express = require('express');
const path = require('path');
const bodyParser = require('body-parser');
const cors = require('cors');
const passport = require('passport');
const mongoose = require('mongoose');
const config = require('./config/database');

// Connect To Database
mongoose.connect(config.database);

// On Connection
mongoose.connection.on('connected', () => {
  console.log('Connected to database '+config.database);
});

const app = express();
const products = require('./routes/products');

// Port Number
const port = 3000;

// CORS Middleware
app.use(cors());

// Set Static Folder
app.use(express.static(path.join(__dirname, 'public')));

// Body Parser Middleware
app.use(bodyParser.json());

// Passport Middleware
app.use(passport.initialize());
app.use(passport.session());

require('./config/passport')(passport);

app.use('/users', users);
app.use('/products', products);

// Index Route
app.get('/', (req, res) => {
res.send('Invalid Endpoint');
});

// Start Server
app.listen(port, () => {
  console.log('Server started on port '+port);
});

const express = require('express');
const router = express.Router();
var mongoose = require('mongoose');
const config = require('../config/database');
const Products = require('../models/products');

// Add Categories
router.post('/add', (req, res, next) => {

//res.send('Products addition');
//Create a model folder

   let newProduct = new Products({
        category_name: req.body.category_name,  
        product_name: req.body.product_name,
        product_price: req.body.product_price,
        product_image: req.body.product_image,
        product_desc: req.body.product_desc,
        product_status: req.body.product_status,
        product_createdat: req.body.product_createdat,
        product_updatedat: req.body.product_updatedat
    }); 


   Products.addProduct(newProduct, (err, products) => {
    if(err){
      res.json({success: false, msg:'Product unable to add'});
    } else {
      res.json({success: true, msg:'Products successfuly added!!'});
    }
     });
   });

module.exports = router;

const mongoose = require('mongoose');

const config = require('../config/database');

// Products Schema
const ProductsSchema = mongoose.Schema({
    category_name: {
    type: String
  },
  product_name: {
    type: String,
    //required: true  //had to change this to default
    default: true
  },
  product_price: {
    type: String,
    default: true
  },
  product_image: {
    type: String,
    default: true
  },
   product_desc: {
    type: String,
    default: true
 },
   product_status: {
    type: String,
    default: true
 },
   product_createdat: {
    type: String,
    required: true
 },
   product_updatedat: {
    type: String,
   default: true
 }
});

 const Products = module.exports = mongoose.model('Products', ProductsSchema);


module.exports.addProduct = function(newProduct, callback){
    //newProduct.save(callback);
    newProduct.save(function(err) { 
      // we've updated the dog into the db here if (err) throw err;
    });
}

在浏览器中，我得到：

success:false，msg:“产品无法添加”

更新：我这里有完整的angular前端代码：

在postman中，我正在传递API端点

..：3000/产品/添加

---

addProduct

在没有邮递员的情况下工作？？？试试这个-

newProduct.save（函数（err）{//if（err）throw err；}），我们已经将狗更新到数据库中

已更新问题@Utkarsh Dubey，我在broswer中仅看到包含数据的对象，但数据未保存到DB，在postman中，我通过APIs保存。请检查app.js设置中的body parser。我有app.use（bodyParser.json（））；在我的app.js中，已更新我的完整app.js文件