问题描述
我尝试为电子商务项目创建类别,然后抛出错误 Postman - throws an error
这些是源代码
位置:电子商务后端\index.js
const express = require('express')
const env = require('dotenv')
const app = express()
const mongoose = require('mongoose')
//routes
const authRoutes = require('./routes/auth')
const adminRoutes = require('./routes/admin/auth')
const categoryRoutes = require('./routes/category')
const productRoutes = require('./routes/product')
const cartRoutes = require('./routes/cart')
//environment variable or you can say constants
env.config()
//mongodb connection
mongoose.connect(
`mongodb+srv://${process.env.MONGO_DB_USERS}:${process.env.MONGO_DB_PASSWORD}@cluster0.nglbc.mongodb.net/${process.env.MONGO_DB_DATABASE}?retryWrites=true&w=majority`,{
useNewUrlParser: true,useUnifiedTopology: true,useCreateIndex: true
}
).then(() => {
console.log('Database connected')
});
app.use(express.json())
app.use('/api',authRoutes)
app.use('/api',adminRoutes)
app.use('/api',categoryRoutes)
app.use('/api',cartRoutes)
app.use('/api',productRoutes)
app.listen(process.env.PORT,() => {
console.log(`Server is running on port ${process.env.PORT}`)
})
位置:电子商务后端\routes\category.js
const express = require('express')
const { requireSignin,adminMiddleware } = require('../common-middleware')
const { addCategory,getCategories } = require('../controller/category')
const router = express.Router()
const path = require('path')
const shortid = require('shortid')
const multer = require('multer')
const storage = multer.diskStorage({
destination: function (req,file,cb) {
cb(null,path.join(path.dirname(__dirname),'uploads'))
},filename: function (req,shortid.generate() + '-' + file.originalname)
}
})
const upload = multer({ storage })
router.post('/category/create',requireSignin,adminMiddleware,upload.single('categoryImage'),addCategory)
router.get('/category/getcategory',getCategories)
module.exports = router
位置:电子商务后端\models\category.js
const mongoose = require('mongoose')
const categorySchema = new mongoose.Schema({
name: {
type: String,required: true,trim: true
},slug: {
type: String,unique: true
},categoryImage: {
type: String,},parentId: {
type: String
}
},{ timestamps: true})
module.exports = mongoose.model('Category',categorySchema)
位置:电子商务后端\控制器\category.js
const Category = require('../models/category')
const slugify = require('slugify')
function createCategories(categories,parentId = null){
const categoryList = []
let category
if(parentId == null){
category = categories.filter(cat => cat.parentId == undefined)
}else{
category = categories.filter(cat => cat.parentId == parentId)
}
for(let cate of category){
categoryList.push({
_id: cate._id,name: cate.name,slug: cate.slug,children: createCategories(categories,cate._id)
})
}
return categoryList
}
exports.addCategory = (req,res) => {
const categoryObj = {
name: req.body.name,slug: slugify(req.body.name)
}
if(req.file){
categoryObj.categoryImage = process.env.API + '/public/'+ req.file.filename
}
if(req.body.parentId){
categoryObj.parentId = req.body.parentId
}
const cat = new Category(categoryObj)
cat.save((error,category) => {
if(error) return res.status(400).json({ error})
if(category){
return res.status(201).json({ category})
}
})
}
exports.getCategories = (req,res) => {
Category.find({})
.exec((error,categories) => {
if(error) return res.status(400).json({error})
if(categories){
const categoryList = createCategories(categories)
res.status(200).json({categoryList})
}
})
}
这是我在 ecommerce-backend\ .env 中的 .env 文件
PORT = 2000
MONGO_DB_USERS = mrzombit
MONGO_DB_PASSWORD = ********
MONGO_DB_DATABASE = ecommerce
JWT_SECRET = MERNSECRET
API = http://localhost:2000
我遇到了这个问题然后我无法弄清楚我的代码发生了什么 谢谢!
解决方法
确保您已更改邮递员标题部分中的“内容类型”。
Content-Type: multipart/form-data; boundary=<calculated when request is sent>
,
我只做以下步骤:
-
从
中删除 slugify 包package.json
-
重新安装 slugify 包:你会看到
发现了 2 个高危漏洞 运行
npm audit fix
来修复它们,或运行npm audit
了解详情 -
运行
npm audit fix
-
打开新窗口!在邮递员和 从
/api/admin/create
复制令牌并将此令牌粘贴到新窗口中:/api/category/create
in body,表单数据:
名称(您的数据库中尚不存在)
categoryImage(点击文件不是文本)