Introduction to Express- | Shalini Chauhan
Post
Introduction to Express-
Express is a Web Framework built upon Node.js.
Node.js is an amazing tool for building networking services and applications. Express builds on top of its features to provide easy to use functionality that satisfies the needs of the Web Server use-case. It's Open Source, free, easy to extend and very performant.
There are also lots and lots of pre-built packages you can just drop in and use to do all kinds of things.
Installation
You can install Express into any project with npm.
If you're in an empty folder, first create a new Node.js project with
npm init -y
then run
npm install express
to install Express into the project.
The first example we're going to create is a simple Express Web Server.
const express = require('express')
const app = express()
app.get('/', (req, res) => res.send('Hello World!'))
app.listen(3000, () => console.log('Server ready'))
and start the server using
node index.js
You can open the browser to port 3000 on localhost and you should see the Hello World! message.
Keep on eyes for the next post of express:)
React
Pages and Layouts in Nextjs- When building projects with Next.js, we typically create an entire user interface by assembling isolated components. However, some parts of the interface require the same code snippets across multiple routes — for example, the navigation header, footer, and sidebar. To manage this, we use layouts to structure the interface in a way that contains shared code snippets. Next.js recommends starting a new project with the App Router. However, we’ll discuss how to implement layouts and nested layouts with the Pages Router for users who have yet to migrate to the new Next.js routing system.
How to Parse JSON in Dart/Flutter Parsing JSON is a very common task for apps that need to fetch data from the Internet. And depending on how much JSON data you need to process, you have two options: write all the JSON parsing code manually automate the process with code generation Encoding and Decoding JSON When a JSON response is sent over the network, the entire payload is encoded as a string. But inside our Flutter apps, we don't want to extract the data from a string manually: