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joplin notion extension/Web Development/NOSQL/mongodb/mongoose.md

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+mongoose
+https://mongoosejs.com/docs/api/model.html
+
+
+- findall
+  `const tasks = await Task.find()`
+
+- sorting
+   `const tasks = await Task.find().sort({complexity: 1})`
+- patching
+  `const updatedTask = await Task.findByIdAndUpdate(taskID,{complexity},{new: true})`
+- inserting using save method
+  ```js
+   const newTask = new Task({title,complexity})
+    const savedTask = await newTask.save()
+  ```
+- deleting
+  `const deletedTask = await Task.findByIdAndDelete(taskID)`
+
+ 
+basic program
+
+```js
+const express = require('express')
+
+const mongoose = require('mongoose')
+const cors = require('cors')
+require('dotenv').config()
+
+const app = express()
+app.use(cors())
+app.use(express.json())
+
+const PORT = process.env.PORT || 5000
+const MONGO_URI=  process.env.MONGO_URI || 'mongodb://127.0.0.1:27017/merndb'
+
+mongoose.connect(MONGO_URI).then(()=> console.log('mongodb connnected')).catch(err=>console.log('mongodb connection error'))
+
+const TaskSchema = new mongoose.Schema({title: {type: String, require: true}})
+const Task = mongoose.model('Task',TaskSchema)
+
+app.get('/api/tasks', async (req,res)=>{
+    const tasks = await Task.find();
+    res.json(tasks);
+
+
+})
+
+
+app.post('/api/tasks', async (req,res)=>{
+    const newTask = new Task({title : req.body.title})
+    const savedTask = await newTask.save()
+    res.status(201).json(savedTask)
+} )
+
+app.listen(PORT,()=> console.log(`Server running on port ${PORT}`) )
+```