GraphQL vs REST: Choosing the Right Approach
Compare GraphQL and REST head to head so you can decide when each fits, and understand why Spring Boot supports both.
GraphQL vs REST: Choosing the Right Approach is a free GraphQL APIs with Spring Boot lesson on CoddyKit — lesson 4 of 4. You can read the complete lesson below for free — then practise it hands-on in the browser with a built-in code editor and a 24/7 AI tutor. It is part of the GraphQL APIs with Spring Boot learning path, one of 4 lessons in the course, and your progress syncs across the web and the CoddyKit app.
Two Ways to Build an API
You know what GraphQL is and how to set it up. So how does it stack up against REST? Knowing the trade-offs beats following the hype.
REST in One Minute
REST exposes resources as URLs and uses HTTP verbs — GET /users/1 reads, POST /users creates. Each endpoint returns a fixed, server-defined shape.
GraphQL in One Minute
GraphQL exposes one endpoint and a typed schema. The client asks for exactly the fields it wants — here, just a user’s name and email.
query {
user(id: 1) {
name
email
}
}Over-Fetching and Under-Fetching
REST’s classic pain: over-fetching returns more than you need, under-fetching forces many calls per screen. GraphQL lets the client shape the response.
Fetching Related Data
Fetching a user plus their posts is two REST round trips, but a single GraphQL query. Related data, one request.
query {
user(id: 1) {
name
posts { title }
}
}Where REST Still Shines
REST still wins for simple CRUD with stable shapes, URL-based HTTP caching, and file or binary streams. It’s mature and uses the whole HTTP toolbox.
Where GraphQL Shines
GraphQL shines when client needs vary (web plus mobile on one API), data is deeply related, or frontends evolve fast and need flexible queries.
Caching: A Key Difference
A key gap: REST caches naturally on URLs via HTTP, but GraphQL POSTs to one endpoint, so it leans on client-side normalized caches and persisted queries.
Error Handling and Status Codes
REST signals failure with HTTP status codes like 404 and 500. GraphQL usually returns 200 with an errors array — changing how clients detect problems.
Spring Boot Supports Both
You don’t have to choose: Spring Boot serves REST controllers and GraphQL from the same app, side by side.
@RestController
class UserController {
@GetMapping("/users/{id}")
User get(@PathVariable Long id) { return null; }
}
// alongside a @Controller with @QueryMapping for GraphQLIt Is Not All or Nothing
It’s not all-or-nothing. Plenty of systems use both — REST for simple resources and webhooks, GraphQL for complex client-driven reads. Choose per use case.
Quick Check
When does GraphQL beat REST — and when does it lose?
Recap
You compared the two: GraphQL fixes over/under-fetching with client-shaped queries, REST wins for cacheable URL resources, and Spring Boot serves both.
Frequently asked questions
Is the “GraphQL vs REST: Choosing the Right Approach” lesson free?
Yes — the full text of “GraphQL vs REST: Choosing the Right Approach” is free to read here on the web, and the GraphQL APIs with Spring Boot course includes 4 lessons in total. To practise it interactively (a built-in code editor and a 24/7 AI tutor) and unlock the rest of the GraphQL APIs with Spring Boot course, upgrade to CoddyKit PRO.
What will I learn in “GraphQL vs REST: Choosing the Right Approach”?
Compare GraphQL and REST head to head so you can decide when each fits, and understand why Spring Boot supports both. You practise GraphQL APIs with Spring Boot with hands-on code you run directly in the browser, and a 24/7 AI tutor answers your questions as you work through the lesson.
Do I need any experience to start GraphQL APIs with Spring Boot?
No prior experience is required. GraphQL APIs with Spring Boot on CoddyKit is structured for beginners through advanced learners; this is — lesson 4 of 4, so you can start here or from the beginning and move at your own pace.
How long does the “GraphQL vs REST: Choosing the Right Approach” lesson take?
Most CoddyKit lessons take about 5–10 minutes. Each one is bite-sized and interactive, so you make steady progress and pick up exactly where you left off across the web and the app.
Can I write and run code in this GraphQL APIs with Spring Boot lesson?
Yes. Every GraphQL APIs with Spring Boot lesson includes a built-in code editor, so you write and run real code right in your browser and get instant AI feedback — no local setup required.
All lessons in this course
- What is GraphQL?
- Setting up Spring Boot for GraphQL
- Designing Your First GraphQL Schema
- GraphQL vs REST: Choosing the Right Approach