https://github.com/namkatcedrickjumtock/node-blogger-app

Mern stack blogging web app with simple Crud functionalities
https://github.com/namkatcedrickjumtock/node-blogger-app

ejs-templates express mongodb mongoo nodejs

Last synced: 1 day ago
JSON representation

Mern stack blogging web app with simple Crud functionalities

• Host: GitHub
• URL: https://github.com/namkatcedrickjumtock/node-blogger-app
• Owner: namkatcedrickjumtock
• Created: 2022-07-05T22:31:01.000Z (over 2 years ago)
• Default Branch: master
• Last Pushed: 2022-07-08T00:39:42.000Z (over 2 years ago)
• Last Synced: 2024-04-18T04:42:12.952Z (7 months ago)
• Topics: ejs-templates, express, mongodb, mongoo, nodejs
• Language: EJS
• Homepage: https://express-blogz.herokuapp.com/blogs
• Size: 207 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

        
## Node JS Notes

#### Global objects in Node

Global Objects in Node is similar to the Global Window Object in the browser.

    Broswer: Window -> returns all accessible methos within the object

    node: Gloable return all the accessible methods

#### NB:-

Accessing Files

    __dirname -> returns the absolute path of file

    __filname - > return the absolute path of file with the ile name

#### Modules import and Export Modularity in node js

exporting file name: resources.js  

importing files name: app.js

    const values = [23,"hey","johne", true]

    const values2 = [...values]

    // export multiple rescources

    modules.export = {values, values2}

    const {values, values2} = require("./resources.js") //import destructuring

#### FileSstems Operations in Node

        const fs = require('fs')

        

        // reading file

        fs.readFile(, (err, data) => { //async fxn

            if(err){log(err)}

            log(data.toString)

        })

        // writing files

        fs.writeFile(, data, (err) =>{

            ...code

        })

        // making Directories

        check if dir exists

        if(!fs.existsSync()){

            fs.mkdir(, (err)=>{ // rmdir removes a directories

                ... log message

            })

        }

        // deletings files

        if(fs.existsSync()){

            fs.unlink("path to file", (err)=>{

                .. log err if found

            })

        }

### Streams and Buffers for large files

- ## Streams

- ## Buffers

- [ ]   Read Streams 

- [ ]   Write Streams  

Using Streams data can be used while it's loading 

        const readStream = fs.createReadStream(, {encoding: "utf8})

        const writeStream = fs.createWriteStream(, {encoding: "utf8})

    

    readStream.on('data', (chunck)=>{

        writeStream.write('\n Chunk \n')

    })

    // piping

    reading data from read stream into the  write stream

    // much easier

    readStream.pipe(writeStream)

setHeader - > redirect to a particular screen.

#### Express MiddleWares

 it's simply functions or peac of code that run between the request coming in and the response going out of the server.    

 ##### Uses of Middleware can be used in: 

 - As a logger for looing details of every request

 - Authentication check middleware for protected Routes

 - Middleware to parse json data from request

 - Return 404 pages

 ``` 

 for example: 

 the use((res, req)) // we use for displaying th e 404 pages.

 // the use fxn runs for every request sent the Browser