Full Stack Web Development Course: React, Next.js, APIs

This web development course takes a student from how a request becomes a page to a deployed, authenticated, tested full-stack application — and it teaches the architecture the industry actually ships in 2026, not the one tutorials were written for in 2021.

Stage 1: the platform first

Before any framework, students learn what is underneath. DNS and HTTP, status codes, caching headers — so that a slow page or a stale response is diagnosable rather than mysterious.

Semantic HTML and accessibility come first, not last. A layout built from correct elements works with a keyboard and a screen reader almost for free, while one built from generic containers needs retrofitting that rarely happens. Students test with a keyboard and a screen reader from the first week.

Modern CSS follows: the box model, flexbox and grid, custom properties, and responsive design from a mobile-first baseline. Most layout frustration comes from not knowing which box is being sized, so that is addressed directly rather than worked around.

Stage 2: React 19 and the server/client split

React is taught as components, state and composition — with particular attention to where state should live, since that single decision determines more about an application's maintainability than any other.

Then the part that matters most in 2026: React Server Components. RSC is now the production-standard architecture and the default in the Next.js App Router. The reason is concrete — a server component ships zero kilobytes of JavaScript to the device, only its rendered output, which is where the 30 to 50 per cent bundle reduction comes from. Data fetching becomes a plain async/await call against a database or API, replacing the useEffect and useState pattern entirely.

Students learn to place the server/client boundary deliberately: server by default, client only where interactivity genuinely requires it. Getting this wrong is the most common mistake in new Next.js codebases, and it is a reasoning skill rather than a syntax one.

Next.js App Router, current

File-based routing, layouts, loading and error boundaries, server actions for mutations, and streaming so a slow data source does not block the whole page.

The versions taught are React 19.2 and Next.js 16.x, with Turbopack as the default bundler and the current caching model including cache components and partial pre-rendering. Where a feature is new enough to still be shifting, the course says so rather than presenting it as settled.

Stage 3: the back end is not optional

"Full stack" means the server is understood too, so students design and build a real API: resource modelling, status codes, validation, pagination, consistent error shapes, and OpenAPI documentation that someone else could build against.

Data is treated as an engineering problem — relational modelling and normalisation, SQL, indexes and what an unindexed query costs at scale, and migrations kept in version control.

Security is taught by demonstration. Students perform XSS, CSRF and SQL injection against a deliberately vulnerable application they control, then defend it. Password storage, session versus token choices, cookie flags and rate limiting follow. An attack you have executed yourself is understood permanently.

Stage 4: shipping, and keeping it alive

Deployment is where most self-taught projects stop, so it gets real coverage: version control workflow, CI, externalised configuration and secrets, deployment, logging, error tracking and basic monitoring.

Performance is taught as measurement before optimisation. Bundle size, images, fonts, caching layers, and the Core Web Vitals that reflect what a user on a mid-range phone on a patchy connection actually experiences — not what a developer on a fast laptop sees.

Testing in proportion

Tests are taught at three levels with honest guidance about how much of each is worth writing: unit tests for logic, component tests that assert behaviour rather than implementation details, and end-to-end tests for the small number of paths that must never break.

The aim is a suite a student will actually maintain. A hundred brittle tests that break on every refactor get deleted; a dozen meaningful ones survive.

What you finish with

One deployed full-stack application: authenticated users, a real database, a documented API, a test suite, CI, and a written note on its architecture and limits.

That application is the portfolio piece, and the written note is what makes it persuasive. A student who can explain why they drew the server/client boundary where they did, and where their application would struggle under load, is demonstrating engineering judgement rather than tutorial completion.

Who this suits

Students from Class 9 upward and undergraduates, including those starting from very little. Five hours a week across about 34 weeks, online, in small groups of up to eight.

JavaScript experience helps but is not required. Students who want the language in real depth should take our JavaScript course alongside this one — it covers closures, the event loop, prototypes and TypeScript at a level this course does not need to.