Blockchain is a safe way to record activities and keep data fresh while maintaining a record of its history compared to the traditional records or databases where hacks, errors, and downtimes are very possible.
nodejs-restful-api How to create a RESTful CRUD API using Nodejs? This tutorial will demo how to set up a bare bones API using mongodb as the database. It consist of a User model and controller. The model defines the data, and the controller will contain all the business logic needed...
REST API with Node.js is a web service architecture defining routes, handling HTTP methods, and interacting with data storage for interoperable APIs.
You can run thenpm initcommand to create some generic version of package.json. It’s going to ask you some questions here to create a boilerplate file with required fields. We are going to address these fields later, but for now, we are going to focus on name, version, repository and ...
To illustrate this, let’s consider a scenario where you’re building a simple chat application using Node.js and Express.js. You want to create a server that listens for incoming messages and broadcasts them to all connected clients. Here’s a simple example of how you might structure your...
nanohello.js Copy We start by loading thehttpmodule that’s standard with all Node.js installations. Add the following line tohello.js: first-servers/hello.js consthttp=require("http"); Copy Thehttpmodule contains the function to create the server, which we will see later on. ...
We begin by importing the built-in http module, which allows us to create an HTTP server in Node.js. Next, we define the hostname (in this case, ‘localhost’) and the port number (3000) on which our server will listen for incoming requests. ...
This parameter makes the request take a screenshot of the full page. Here’s how to use it: constscrapingbee =require('scrapingbee');// Import ScrapingBee's SDKconstfs =require('fs');asyncfunctiontake_screenshot(url, path) {varclient =newscrapingbee.ScrapingBeeClient('YOUR-API-KEY');/...
Update Node.js with NVM The best and easiest way to upgrade Node.js is withnvm, a practical tool for managing multiple Node.js versions. Follow these steps: 1. Start by updating the system package repository: sudo apt updateCopy 2. Installnvmusing thecurl command: ...
nstalling Express.js Creating a Web Service It’s now time to create a web service/server with Express! 1. To get started, ensure you’re still in the~/NodejsHTTPSServerdirectory and create a blank file calledindex.js. This file will be a Javascript script that will hold all necessary ...