Spring Boot, React and Redux Training in Copenhagen, Denmark

This intensive training program equips developers with the skills to build modern full-stack web applications using Spring Boot for the backend and React with Redux for the frontend. Participants will learn to design REST APIs, build reactive user interfaces, manage state using Redux, and integrate both layers to deliver a complete application.

Backend Development with Spring Boot

Introduction to Spring Boot and Project Setup

  Overview of Spring ecosystem

  Creating a Spring Boot project using Spring Initializr

  Application structure and configuration

  Running and testing a basic application

Building RESTful APIs

  Understanding REST principles

  Creating controllers and endpoints

  Path variables, request parameters, and request bodies

  Returning JSON responses

Data Persistence with Spring Data JPA

  Connecting to a relational database

  Creating entities and repositories

  Implementing CRUD operations

  Database initialization with schema/data scripts

Exception Handling and Validation

  Global exception handling using @ControllerAdvice

  Custom exceptions and error responses

  Bean validation using JSR-380 annotations

Frontend Development with React

Introduction to React and JSX

  React concepts and component-based architecture

  Creating and rendering components

  Props, state, and event handling

  JSX syntax and rules

Component Lifecycle and Hooks

  Class vs functional components

  useState, useEffect, and other common hooks

  Managing side effects and dependencies

React Router and Navigation

  Installing and configuring React Router

  Defining routes and navigation links

  Route parameters and dynamic pages

Forms and User Interaction

  Controlled components and form state

  Handling input and validation

  Submitting data to backend

Full-Stack Integration with Redux and API Communication

Introduction to Redux

  State management challenges in React

  Core concepts: store, actions, reducers

  Setting up Redux in a React project

  Creating and dispatching actions

Asynchronous Actions with Redux Thunk

  Middleware overview

  Fetching data from Spring Boot APIs

  Handling loading and error states

Connecting Frontend and Backend

  Axios for HTTP requests

  Fetching and posting data to backend

  Using Redux state to manage UI logic

Authentication and Error Handling

  Basic authentication flow

  Handling protected routes and redirects

  Displaying backend validation or error messages

Hands-on Exercises

Summary and Conclusion