In Spring MVC, @RequestParam and @PathVariable are two commonly used annotations for handling incoming requests and extracting data from the URL. While they might seem similar, they serve different purposes and are used in distinct scenarios. In this tutorial, we'll explore the differences between @RequestParam and @PathVariable with examples to illustrate their usage. @RequestParam…
RESTful web services have become a standard for communication between web servers and clients. In Spring Boot, consuming these RESTful services is simplified with the RestTemplate class. In this tutorial, we'll explore how to use RestTemplate as a RestClient in a Spring Boot application. What is RestClient? A RestClient is a client-side application or…
Pagination is a crucial feature for displaying large sets of data in manageable chunks in web applications. Spring Boot makes it straightforward to implement pagination using Spring Data JPA and its Pageable interface. In this tutorial, we'll go through how to set up pagination in a Spring Boot application with examples. Prerequisites Basic understanding…
In this tutorial, we will explore how to leverage Twilio's APIs within a Spring Boot application to send SMS messages. Spring Boot, known for its simplicity and convention-over-configuration approach, is a popular choice for building robust Java applications, making it an excellent framework for integrating with Twilio. Prerequisites Java installed on your machine (version…
Introduction:In any web application, data validation plays a crucial role in ensuring the integrity and security of the data being processed. Node.js, with its extensive ecosystem, offers several libraries for data validation. One such popular library is Validator.js, a lightweight library for string validation and sanitization. In this tutorial, we will explore how to…
ES6, also known as ECMAScript 2015, brought significant enhancements to JavaScript, making the language more expressive, powerful, and easier to work with. In this tutorial, we'll explore some key features introduced in ES6 along with examples. 1. let and const let and const provide block-scoped variable declarations, replacing var. // let example let x…
D3.js (Data-Driven Documents) is a JavaScript library for manipulating documents based on data. It enables you to create interactive and dynamic data visualizations in web browsers. In this tutorial, we'll cover the basics of D3.js step by step. Prerequisites Before starting with D3.js, ensure you have the following: Basic understanding of HTML, CSS, and…
In Java programming, asynchronous programming is crucial for building responsive and scalable applications. Java 8 introduced the CompletableFuture class, which provides a powerful way to work with asynchronous tasks. In this article, we'll explore CompletableFuture and its various features with examples. Introduction to CompletableFuture CompletableFuture is a class added in Java 8 that represents…
Node.js has become a popular choice for building server-side applications due to its efficiency and scalability. Apollo Server, on the other hand, is a flexible GraphQL server that integrates seamlessly with Node.js. In this tutorial, we will walk through the process of setting up a basic Node.js application and integrating Apollo Server to create…
In this tutorial, we'll explore how to implement authentication in a Node.js application using JSON Web Tokens (JWT). JSON Web Tokens are a compact, URL-safe means of representing claims to be transferred between two parties. We'll cover the basics of JWT, how to generate and verify tokens, and integrate them into a simple Node.js…