Express

In this blog post, we will explore how to send files using Express, a popular framework for building web applications in Node.js. We will focus on the Response.download() method, which allows you to transfer files as attachments. When a user visits a route that uses the Response.download() method, their browser will prompt them to download the file instead of displaying it in the browser window. This is useful when you want to send files, such as PDFs or images, to your users....

Server Side Rendering (SSR), also known as Server-Side Rendering, refers to the process of rendering a JavaScript application on the server instead of the browser. There are several reasons why we should consider using SSR with React: Faster first page load time: SSR allows your site to load faster, enhancing the user experience. Improved SEO: Search engines struggle to efficiently index applications that rely solely on client-side rendering. SSR helps search engines understand and index your content correctly....

In this blog post, we will discuss how to serve static assets directly from a folder in Express. Many web applications have a public subfolder where they store images, CSS files, and more. We will learn how to expose these assets to the root level of the application using Express. To get started, we need to install Express and require it in our project file: const express = require('express'); const app = express(); Next, we can use the express....

Introduction to Pug Pug is a template engine designed for server-side Node.js applications. It allows developers to add dynamic data to views and generate HTML. Formerly known as Jade 2.0, the project changed its name to Pug in 2016 due to a trademark issue. While the older version (Jade 1.0) is still usable, it is recommended to use the latest version (Pug 2.0). Learn more about the differences between Jade and Pug....

In this blog post, we will learn how to validate input data in your Express endpoints using the express-validator package. Specifically, we will look at how to validate the name, email, and age parameters in a POST endpoint. Let’s start by setting up our Express server and configuring it to parse incoming JSON data: const express = require('express'); const { check, validationResult } = require('express-validator'); const app = express(); app.use(express.json()); Next, let’s define our POST endpoint and perform validation on the input data:...

When it comes to integrating different services in your code, utilizing webhooks is a common practice. But what exactly is a webhook? A webhook is essentially a POST request handler that awaits a call and performs a specific task once triggered. Here’s an example to illustrate how webhooks work. Let’s say I use Paddle as a platform to sell my Bootcamp course on bootcamp.dev. Every time someone signs up for the course, my webhook is called, providing me with JSON data that includes the customer’s email, name, and the purchased product....

In this article, you will learn how to effectively work with HTTP headers using Express. HTTP headers play a crucial role in web communication as they contain important information about the request and response. Accessing HTTP Header Values from a Request To access all the HTTP headers of a request, you can utilize the Request.headers property. Here’s an example: app.get('/', (req, res) => { console.log(req.headers); }); If you only need to access a specific header’s value, you can use the Request....