REST API vs GraphQL
A detailed comparison of REST API and GraphQL. Learn when to use each, their pros and cons, and how they fit into modern API architecture.
Short Answer
While both REST API and GraphQL are essential tools for API development, they serve different primary purposes. REST API is typically used for X, whereas GraphQL excels at Y.
Comparison Table
| Feature | REST API | GraphQL |
|---|---|---|
| Primary Focus | Design & Documentation | Testing & Execution |
| Format | YAML / JSON | JSON / UI-based |
When to use REST API
Use REST API when you are in the design phase, need to generate SDKs, or want to create interactive API documentation for third-party consumers.
When to use GraphQL
Use GraphQL when your primary goal is to run integration tests, automate QA workflows, or share executable request collections with your team.
Pros of REST API
- Highly standardized
- Great for code generation
- Vendor neutral
Pros of GraphQL
- Executable instantly
- Environment variables support
- Excellent GUI tooling
Frequently Asked Questions
Which one should I choose?
It depends on your use case. Read our detailed comparison to see which fits your team's workflow.
Can I use both?
In many cases, yes! Teams often use OpenAPI for documentation and Postman for testing.