Нове компоненте сервера Реацта могу бити смрт преплављених веб апликација

(*If you’d like to skip ahead and dive directly into the technical breakdown, jump to 1. Why React Server Components Were Introduced.)

In the early 2010s, React revolutionized frontend development with its declarative component model and efficient virtual DOM diffing. What began as a simple view library soon became the backbone for large-scale single-page applications (SPAs). These SPAs predominantly used Client-Side Rendering (CSR), meaning the browser would download a JavaScript bundle, execute it, and construct the UI entirely on the client.

This client-centric model was flexible and highly interactive, and it defined “modern” web apps for years. However, as applications grew more complex and feature-rich, the CSR approach started to show its cracks:

• Longer Time-to-Interactive (TTI): Hefty JavaScript bundles and client-side work meant users waited longer before they could actually interact with the page.

• Хидрација боца: Претварање ХТМЛ-а који је приказао сервер у интерактивну апликацију (хидрација) постала је тачка удара у перформансама, посебно пошто се количина динамичког садржаја повећала.
• Надувани пакети: Апликације често испоручују много више ЈаваСцрипта него што је потребно, оптерећујући претраживаче кодом за функције или садржај који би могао бити испоручен ефикасније.

• Performance that doesn’t scale: The larger and more complex the app, the harder it became to maintain snappy performance across all devices and network conditions.

  
  

Next.js emerged to tackle some of these pain points by introducing Server-Side Rendering (SSR), Static Site Generation (SSG), and other optimizations. These techniques improved initial load times and offloaded some of the UI rendering work to the server. But even with SSR and SSG, the fundamental issue remained: we were still over-delivering JavaScript to the browser.

Брзо напред до 2025. године.Са Next.js 15 који ради на Реацт 19, нова парадигма рендерирања је ушла у средишњу фазу:React Server Components (RSC)РСЦс омогућавају програмерима да беспрекорно мешају компоненте које приказују сервери и клијенти у једном Реацт дрвету. Импликације су значајне. статички делови УИ-а сада се могу испоручити као чист ХТМЛ саzero JavaScript overheadДругим речима, за те секције није потребна хидратација са стране клијента. Логика прикупљања података се такође поједностављује покретањем компоненти унутар сервера, елиминишући многе непотребне АПИ позиве из претраживача.

Овај чланак није преглед РСЦ-а на површини.Када сам почео да пишем о ефикасном коришћењу Next.js-а у 2025, брзо је постало јасно да Реацт Сервер Компонентс заслужује посвећено дубоко роњење.Оно што следи је технички ригорозно истраживање како РСЦ ради под капом, како га искористити у пројекту Next.js 15 и зашто то представља фундаменталну промену у фронтенд архитектури.

By the end, I hope you come away with the same clarity and appreciation for RSC that I did through the process of researching and writing this piece.

Intro: From CSR to RSC — How Rendering Evolved in React

Intro: From CSR to RSC — How Rendering Evolved in React

Током протекле деценије, начин на који градимо Реацт апликације фундаментално је еволуирао и са њим, начин на који размишљамо о рендерирању.

🕰 A brief history of Client-Side Rendering (CSR) in React

React gained its popularity through Client-Side Rendering (CSR) — a model where the browser downloads JavaScript, executes it, and builds the entire UI on the client. This approach gave developers full control over interactivity and state, and made it easy to build dynamic single-page applications (SPAs).

However, CSR came with notable trade-offs:

• Спорији почетни оптерећења, посебно на мобилним или лошим мрежама
• Poor SEO for content-driven pages
• JavaScript-heavy bundles — even for pages with minimal interactivity
• A hydration step was required after HTML loaded, delaying time-to-interactive

Неко време, ова ограничења су била само "како су ствари биле."

Како је Next.js довео SSR и SSG у развој Реацта

When Next.js entered the scene, it introduced server-side rendering (SSR) and static site generation (SSG) as first-class citizens for React. This marked a turning point: frontend developers could now choose how and when rendering occurred.

• SSR enabled pages to be generated per request, improving SEO and load speed for dynamic content.
• SSG allowed content to be prebuilt at deploy time, perfect for blogs, docs, and marketing sites.
• Incremental Static Regeneration (ISR) bridged the gap by allowing static pages to be updated post-deploy.

This flexibility helped developers strike a better balance between performance, SEO, and developer experience.

But even with SSR and SSG, there was still a lingering issue: we were still sending too much JavaScript to the browser — even for components that didn’t need to be interactive.

🧠 The rise of React Server Components (RSC) in 2025

Са ослобађањемNext.js 15 and React 19Ušli smo u novu eru:React Server Components (RSC) are now a core part of how we build apps.

Unlike SSR, which still requires hydration and ships JavaScript to the client, RSC allows you to render components on the server — without sending any JavaScript to the browser at all.

It’s a big shift:

• Components can now access server-side data directly
• Static content doesn’t require hydration
• You can mix server and client components in a single React tree, composing your rendering strategy per component

RSC ne zamenjuje SSR ili SSG.complements them, откључавање финијег контроле над перформансама, величином пакета и понашањем приказа.

In 2025, RSC is a foundational concept that every senior React engineer needs to master.

1. Why React Server Components Were Introduced

1. Why React Server Components Were Introduced

As React applications became more complex, the industry began to feel the weight of its success. While Client-Side Rendering (CSR), Server-Side Rendering (SSR), and Static Site Generation (SSG) offered different strategies for building performant web apps, each of them carried trade-offs that grew more apparent at scale.

🚧 Limitations of CSR, SSR, and SSG

1Hydration overhead

Чак и са ССР или ССГ, када ХТМЛ стигне до претраживача, Реацт треба да "хидрира" страницу - прикључи слушаоце догађаја, поново покрене компоненте и ефикасно поново изгради апликацију у меморији.

2. JavaScript bundle bloat

With CSR, every component, utility, and API call that’s part of the page must be sent to the browser — regardless of whether it’s interactive or not. SSR and SSG reduce this slightly, but most of the bundle still needs to be executed on the client. As apps grow, this leads to bloated bundles that slow down the user experience.

3. Disconnected data-fetching logic

In the pre-RSC world, data lived outside the components that rendered it. You had to use getServerSideProps or getStaticProps (or call APIs in useEffect) to fetch data, then pass it into components via props. This separation added cognitive overhead and made code harder to co-locate and reuse.

🧠 What problems RSC was designed to solve

React Server Components (RSC) were created to address these growing pain points with a simple but powerful idea: let components execute on the server by default, and only send JavaScript to the browser when it’s absolutely necessary.

✅ Eliminate unnecessary JavaScript

RSC allows components to be rendered server-side withoutАко компонента не захтева интерактивност, нема потребе за хидратацијом или оптерећењем њеног ЈС пакета.

Server-side data access within the component tree

RSC removes the artificial boundary between data fetching and rendering. Server components can use async/awaitда директно приступите базама података, датотечним системима или АПИ-има - ко-лоцирање података и природно прегледање логике, без потребе за АПИ рутама или бушењем.

✅ Improve rendering efficiency and developer experience

Пребацивањем неинтерактивне логике на сервер, програмери могу да граде лакше апликације са мањим пакетима и бољим перформансама.РСЦ такође поједностављује ментални модел - само пишете компоненте и пустите оквир да управља где се покрећу и како се испоручују.

RSC ne želi da zameni SSR ili SSG, već ih nadopunjuje.at the component level, not just the page level, about what should run on the server and what belongs in the browser.

In short: React Server Components were designed to bring modern frontend development back to its lean, fast, and maintainable roots without compromising interactivity.

2. Rendering Strategies in Next.js 15: RSC vs SSR vs CSR

2. Rendering Strategies in Next.js 15: RSC vs SSR vs CSR

Next.js 15 offers developers a granular rendering model that goes far beyond traditional page-level strategies. With React Server Components (RSC) becoming a first-class concept, it’s essential to understand how they compare to two familiar models: Server-Side Rendering (SSR) and Client-Side Rendering (CSR).

While SSG (Static Site Generation) is still valuable in specific cases, it can be viewed as a caching strategy built on top of SSR. In contrast, RSC vs SSR vs CSR represent distinct runtime rendering paths, and understanding them is crucial for making performance- and architecture-aware decisions in 2025.

💡 Пре него што упоредимо: шта значи "интерактивна компонента"?

U kontekstu React i Next.js, jedaninteractive component is any UI element that requires client-side JavaScript to respond to user input or browser events.

This includes (but is not limited to):

• Buttons that update state on click

• Forms with validation or controlled inputs

• Dropdowns and modals that toggle open/closed

• Animations triggered by scrolling or hover

• Tabs, carousels, filters, sliders

• Components that use useState, useEffect, or useReducer

  
  

If a component has event handlers• интерниstate, or relies on the DOM or browser APIsТо мора да иде на клијента.

Interactivity = Browser-side behavior + JS event listeners + local state.

Разумевање ове разлике помаже да се разјасниwhy RSC exists: to avoid shipping JavaScript for UI pieces that don’t need to be interactive.

🧩 Rendering Models at a Glance

Функција RSC (React Server Components) SSR (Server-Side Rendering) CSR (Client-Side Rendering)Интеракција Не ✅ Потпуно ✅ Потпуно

Render location	сервера	сервера	Клијент
JavaScript sent to browser	niko	Да	✅ Yes
Requires hydration	❌ No	Да	✅ Yes
Access to server resources	✅ Direct	✅ Via getServerSideProps	Potreban vam je API poziv
When it runs	On-demand or streamed	po zahtevu	On load in browser
Ideal use case	Static or data-bound views	Персонализовани или динамички УИ	Interactive flows, local UX

Функција RSC (React Server Components) SSR (Server-Side Rendering) CSR (Client-Side Rendering)

Render location

сервера

сервера

Client

JavaScript sent to browser

niko

✅ Yes

✅ Yes

Requires hydration

❌ No

Да

✅ Yes

Интеракција Не ✅ Потпуно ✅ Потпуно

Access to server resources

✅ Direct

✅ Via getServerSideProps

Potreban vam je API poziv

When it runs

On-demand or streamed

po zahtevu

On load in browser

Ideal use case

Static or data-bound views

Персонализовани или динамички УИ

Interactive flows, local UX

Функција RSC (React Server Components) SSR (Server-Side Rendering) CSR (Client-Side Rendering)

Feature

Feature

RSC (React Server Components)

RSC (React Server Components)

SSR (Server-Side Rendering)

SSR (Server-Side Rendering) – пренос са стране сервера

CSR (Client-Side Rendering)

CSR (Client-Side Rendering)

Render location

сервера

сервера

Клијент

Render location

Render location

сервера

сервера

сервера

Server

Client

Client

JavaScript sent to browser

niko

✅ Yes

✅ Yes

JavaScript sent to browser

JavaScript sent to browser

niko

niko

Да

✅ Yes

✅ Yes

✅ Yes

Requires hydration

❌ No

Да

✅ Yes

Потребна хидратација

Потребна хидратација

❌ No

Не

Да

Да

Да

Да

Интеракција Не ✅ Потпуно ✅ Потпуноинтеракције

интеракције

Не

Не

✅ Full

✅ Full

Потпуно

Потпуно

Приступ серверским ресурсима

Директно

✅ преко getServerSidePropsPotreban vam je API poziv

Приступ серверским ресурсима

Access to server resources

Директно

Директно

✅ преко getServerSideProps

✅ преко getServerSideProps

Potreban vam je API poziv

Potreban vam je API poziv

Када се трчи

On-demand or streamed

po zahtevu

Преузмите у Browser

Када се трчи

When it runs

On-demand or streamed

On-demand or streamed

po zahtevu

Per request

Преузмите у Browser

On load in browser

Идеални случај употребе

Static ili data-bound pogledi

Персонализовани или динамички УИ

Interactive flows, local UX

Идеални случај употребе

Ideal use case

Static ili data-bound pogledi

Static ili data-bound pogledi

Персонализовани или динамички УИ

Personalized or dynamic UI

Interactive flows, local UX

Interactive flows, local UX

🔍 Think in Components, Not Just Pages

In earlier versions of Next.js, rendering strategies were applied at the page level. You had getServerSideProps, getStaticPropsШта год да изаберете, примењује се наentire page. This made sense in a world where rendering happened all-or-nothing — either statically at build time, or dynamically on each request.

But with React Server Components (RSC) and the app/директоријум уведен у Next.js 13+ и стандардизован у 15,rendering is no longer a top-down, one-size-fits-all decisionOna postaje aper-component concernTo otvara novi način razmišljanja.

🧠 A New Way of Thinking: Declarative and Composable Rendering

Ova promena je više od promene API-ja, to je konceptualna promena u načinu na koji arhitektujete frontend.

Declarative

Уместо оркестрацијеhow and gde components are rendered manually, you now simply declare what each component does and what it needs — React and Next.js take care of the rest.

You don’t manually wire up API endpoints or pass props from SSR to components. You can just write:

// Server Component
export default async function ProductInfo() {
  const product = await db.getProduct(slug)
  return <div>{product.name}</div>
}

This component:

• Раде на серверу
• Doesn’t send JS to the client
• Не захтева никакве getServerSideProps или API слој
• Да ли је "само компонента" - није потребна додатна апстракција

You describe the UI and its data needs declaratively, and the rendering engine figures out the rest.

Composable

Different parts of your UI can use different rendering strategies — on the same page, at the same time, иwith minimal overhead. .

For example:

// Product page layout
<ProductInfo />           // Server Component (no JS, rendered on the server)
<AddToCartButton />       // Client Component (interactive)
<SimilarProducts />       // Static Component (SSG with revalidation)

These components live together in the same tree, but each one:

• Runs in a different environment (server, client, build)
• Uses only the data and code it needs
• Преноси управо оно што је потребно за претраживач - не више, не мање

To make this more concrete, I created a Минимална демо that showcases how different rendering strategies can coexist on a single page.

3. How React Server Components Work Under the Hood

Како Реацт сервер компоненте раде под капом

React Server Components (RSC) are more than just a new rendering strategy, they fundamentally change how component trees are built, rendered, and transmitted. To use RSC effectively in production, it’s important to understand how it works behind the scenes and how it impacts the boundaries of state, interactivity, and data.

🧱 Server/Client Boundary: A Split React Tree

React aplikacije koje koriste RSC više se ne prikazuju u potpunosti na klijentu.component tree is split into two worlds:

• Server Components: Execute only on the server. No JavaScript is ever sent to the browser. Cannot hold local state or attach event listeners. Perfect for rendering static content and server-bound logic (e.g., DB access).
• Client Components: Must be explicitly marked with "use client". These are compiled into browser-friendly JavaScript and support full interactivity, local state, useEffect, and event handling.

At build or runtime, React constructs a tree where server and client components coexist and stitches them together during render.

---

📍 What "use client"U stvari čini

When you add "use client" to a file, it marks that entire module and its exports as client-only. Behind the scenes, this instructs the Next.js build pipeline to:

• Compile that file (and its dependencies) into a separate JavaScript bundle
• Exclude that component from being run on the server
• Treat it like a classic React CSR component with hydration logic

This directive acts as a boundary marker between the two sides of the tree. All components above it can be server-rendered; all components below it must be rendered in the browser.

💧 Streaming: Rendering in Pieces, Not All at Once

RSC embraces streaming as a native rendering strategy. Instead of waiting for the full React tree to be built before sending it to the browser, the server streams serialized fragments of UI to the client as they become ready.

• Компоненте сервера се приказују и шаљу што је пре могуће
• Задржавачи места (нпр. преко <Suspense>) привремено попуњавају

• Client Components hydrate incrementally, only when they load

  
  

✅ How is this possible?

RSC introduces a concept called selective hydration. When a Client Component is rendered within a Server Component tree, React inserts a placeholder (<div data-rsc-placeholder />) and defers hydration.

Након што је клијент учитао одговарајући ЈС пакет:

1. Реацти лазилно оптерећује ту специфичну компоненту
2. Finds the placeholder and stitches it into the live tree
3. Hydrates it in isolation, without re-rendering the entire page

This design is decoupled and progressive: апликација почиње брзо, а интерактивност се постепено појављује на мрежи.

<Suspense fallback={<LoadingDetails />}>
  <ProductDetails />  // Server Component
</Suspense>

<AddToCartButton />    // Client Component (hydrated later)

⚙️ Data Fetching and Code Splitting in RSC

Another key “magic” of RSC: you can fetch data directly inside components with async/await — without relying on getServerSideProps,useEffect, or manual prop-passing.

// Server Component
export default async function Dashboard() {
  const stats = await getStatsForUser()
  return <StatsView data={stats} />
}

Why is this possible?

• RSC components run as real server functions, not as client-compiled modules
• Они могу приступити базама података, интерним АПИ-има, датотечним системима или било чему што ваш сервер подржава.
• The result is rendered HTML (not JS) and streamed to the client

Also:

• No hydration needed, since the result is static
• No loading UI logic in the component itself — everything resolves before it hits the browser
• No code for this component is sent to the client — unless nested inside a client boundary

This significantly reduces boilerplate and bundle size, while keeping logic colocated with UI — a long-standing React goal finally realized at scale.

Стање, кукови и разматрања животног циклуса

RSC does not support traditional React hooks like useState,useEffect, or useRefЗато што су ониdon’t run in the browser.

Карактеристике Сервер Компонента Клијент Компонента употребаСтатус ❌ ✅ употребаЕфекат ❌ ✅ употребаКонтекст ✅ (ако је статичан) ✅ асинх/очекивати ✅ ❌ (треба да се укључи у ефекте) Управљачи догађајима ❌ ✅Функција Сервер Компонента Клијент КомпонентаКоришћењеЕфекат

Коришћење контекста

✅ (if static)

✅

async/await ✅ (треба да се умотава у ефекте)Детаљи

Feature

Серверске компоненте

Client Component

Feature

карактеристике

Серверске компоненте

Серверске компоненте

Компоненте клијента

Client Component

Коришћење

Коришћење

useState

✅

✅

Ефекат

useEffect

useEffect

❌

❌

✅

Коришћење контекста

✅ (ако је статично)

Коришћење контекста

useContext

✅ (ако је статично)

✅ (if static)

✅

async/await ✅ (треба да се умотава у ефекте)

async/await

async/await

✅

❌ (should wrap in effects)

❌ (should wrap in effects)

Детаљи

Руководиоци догађаја

Руководиоци догађаја

❌

❌

✅

This enforces a clean separation of responsibilities:

• Компоненте сервера: подаци и распоред
• Client Components: interactivity and local state

---

React Server Components are designed to simplify your app. Once you internalize the boundary rules, the streaming model, and async data access, you can compose fast, personalized, and minimal-JS apps with far less boilerplate than before.

4. What’s the Best Practice? Combining RSC, SSR, and SSG

4. What’s the Best Practice? Combining RSC, SSR, and SSG

Једно од најчешћих питања са којима се React инжењери суочавају у Next.js 15 није "Да ли треба да користим РСЦ?" - то је“how do I combine RSC with SSR and SSG in a maintainable, high-performance way?”

Лепота Next.js 15 је у томе што више нисте ограничени на једну стратегију рендерирања по страници.compose rendering strategies at the component level, applying the most appropriate approach to each part of the UI.

This section introduces a practical framework for making that decision based on actual architectural needs.

🧭 Start with the Core Question: What does this component need?

Поставите ова четири питања за сваку компоненту:

1. Да ли је потребно да буде интерактивно? ✅ Да → Користите компоненту клијента
2. Da li su potrebni bezbedni, specifični podaci ili podaci u realnom vremenu? ✅ Da → Razmislite o SSR
3. Can it be precomputed or infrequently updated?
   • ✅ Yes → Prefer SSG
4. Does it fetch server data but never need to run on the client?
   • ✅ Yes → Use RSC

🧩 Example: Product Page Strategy Breakdown

Here’s how a typical e-commerce prduct page might be composed using all three strategies:

Component	Rendering Strategy	Reason
ProductDetails	RSC	Fetched from DB, no interactivity, no need to hydrate
PriceWithPersonalization	SSR	Depends on user session, dynamic per request
AddToCartButton	CSR	Requires interactivity and local state
RelatedProducts	SSG (with ISR)	Safe to cache at build-time, can revalidate every 24h or per tag
StockStatusBanner	RSC + streaming	Frequently changing, streamed in with Suspense to not block TTFB

Компоненте

Rendering Strategy

Razlog

ProductDetails

RSC

Fetched from DB, no interactivity, no need to hydrate

ЦенаПерсонализација

SSR

Depends on user session, dynamic per request

AddToCartButton

CSR

Потребна је интерактивност и локална држава

RelatedProducts

SSG (with ISR)

Safe to cache at build-time, can revalidate every 24h or per tag

StockStatusBanner

RSC + streaming

Frequently changing, streamed in with Suspense to not block TTFB

Компоненте

Rendering Strategy

Razlog

Компоненте

Component

Rendering Strategy

Rendering Strategy

Razlog

Razlog

ProductDetails

RSC

Fetched from DB, no interactivity, no need to hydrate

ProductDetails

ProductDetails

RSC

RSC

Fetched from DB, no interactivity, no need to hydrate

Преузето из ДБ-а, нема интерактивности, нема потребе за хидратацијом

ЦенаПерсонализација

SSR

Depends on user session, dynamic per request

ЦенаПерсонализација

PriceWithPersonalization

SSR

SSR

Depends on user session, dynamic per request

Depends on user session, dynamic per request

AddToCartButton

CSRПотребна је интерактивност и локална држава

AddToCartButton

AddToCartButton

CSR

CSR

Requires interactivity and local state

Потребна је интерактивност и локална држава

RelatedProducts

SSG (with ISR)

Safe to cache at build-time, can revalidate every 24h or per tag

RelatedProducts

RelatedProducts

SSG (with ISR)

SSG (with ISR)

Safe to cache at build-time, can revalidate every 24h or per tag

Safe to cache at build-time, can revalidate every 24h or per tag

StockStatusBanner

РСЦ + стреамингЧесто мењају, преносе се са Суспенсе да не блокирају ТТФБ

StockStatusBanner

StockStatusBanner

RSC + streaming

RSC + streaming

Frequently changing, streamed in with Suspense to not block TTFB

Често мењају, преносе се са Суспенсе да не блокирају ТТФБ

Свака компонента радиjust what it needs to do — no more, no less. No full-page hydration, no global data fetching, no unnecessary JavaScript.

Дизајн најбоље праксе за комбиновање стратегија

✅ 1. почетак сервера-прво

Design every component as a Server Component by default. Opt into interactivity ("use client") only when necessary. This keeps bundles smaller and simplifies testing.

✅ 2. Keep boundaries clear

Користите именовање фасцикле или суфикси имена да бисте границе изразили:

/components
  /server/ProductDetails.tsx
  /client/AddToCartButton.tsx
  /shared/ReviewStars.tsx

✅ 3. Embrace Suspense for progressive delivery

Коришћење<Suspense> to stream in non-critical RSCs without blocking the whole page:

<Suspense fallback={<LoadingReviews />}>
  <ReviewList />
</Suspense>

✅ 4. Co-locate logic with components

Don’t split data-fetching and UI across files unless necessary. In RSC, you can colocate async logic directly inside the component tree — the framework takes care of the rest.

✅ 5. Use ISR (Incremental Static Regeneration) smartly

For cacheable, high-traffic pages like blog articles or marketing sections, use SSG + revalidation:

export const revalidate = 3600  // regenerate every hour

✔️ Уобичајене грешке које треба избегавати

• ❌ Using "use client" by default — you’ll end up with CSR all over again
• ❌ Fetching data in client components when it could be server-fetched
• ❌ Passing too much data between RSC and client components via props — instead, let client components be focused, isolated, and stateful
• ❌ Recreating SSR-style getServerSideProps logic inside RSC — no need, RSC is server-side

✅ Decision Tree Summary

Here’s a simplified guide:

Is it interactive?
│
├── Yes → Client Component (CSR)
│
└── No
    │
    ├── Needs per-request data? → SSR
    │
    ├── Can be pre-rendered? → SSG
    │
    └── Otherwise → RSC

You don’t need to memorize it. Once you internalize how rendering maps to responsibility, the decisions become intuitive.

Најбоља пракса није о избору "најбоље стратегије рендерирања".

То је оdesigning rendering as an intentional part of your component architecture — with clarity, purpose, and performance in mind.

6. Looking Ahead: Why RSC Is More Than Just a Feature

6. Looking Ahead: Why RSC Is More Than Just a Feature

React Server Components are not just a performance optimization or a DX enhancement — they represent a foundational shift in how we build React applications. Much like React Hooks in 2019, RSC in 2025 is redefining the baseline for frontend architecture. .

РСЦ мења ментални модел изградње у реакцији

Традиционални развој Реацта је увек изграђен на овој претпоставци:

“The browser owns the runtime. We hydrate everything. Every piece of logic and data must live in the client, or be fetched via API.”

RSC breaks that assumption.

With RSC, you now ask:

• Can I skip hydration entirely?
• Да ли се ова компонента може покренути искључиво на серверу?
• Can I colocate backend logic with my UI?

It gives us back the ability to separate display logic and interactivity cleanly, not with wrappers and workarounds, but with first-class architectural boundaries.

It’s no longer “client-first.” It’s “purpose-first.”

Each part of your UI exists where it’s most efficient — server, client, or static.

🌐 Ecosystem Shift Toward Server-First Rendering

RSC isn’t happening in isolation. The broader frontend ecosystem is undergoing a server-first rendering renaissance. .

Frameworks like:

• Remix lean heavily into server data loading and form actions.
• Astro embraces zero-JS by default, shipping only islands of interactivity.
• Qwik takes hydration to the extreme — deferring all JS until explicitly needed.
• Next.js 15, with RSC and App Router, now puts per-component rendering at the center of the developer experience.

This isn’t a coincidence. It’s a reflection of a hard truth we’ve all felt:

Sending less JavaScript is the only way to scale interactivity and performance on the modern web.

React Server Components are the React-native answer to that challenge — deeply integrated, ergonomic, and production-ready.

Šta očekivati sledeće

The evolution is still ongoing. As React 19 and the ecosystem mature, we can expect:

• Више грануларних алата за дебугирање и профилирање за РСЦ дрвеће
• Better DevTools integration to show boundaries and hydration timelines
• Higher-order patterns to abstract rendering strategy (e.g., <ServerOnly>, <DeferredClient> wrappers)
• Broader adoption in design systems, frameworks, and libraries (e.g., RSC-aware UI kits)

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