D24
Advanced SpecializationWeb DevelopmentIntermediate9 weeks
REST, GraphQL & API Engineering
REST, GraphQL & API Engineering is an intermediate, 9-week course for developers who already know HTTP, JSON and one backend language. It teaches comparing REST and GraphQL through resource contracts, query cost control, OAuth authorization, idempotency, and compatibility tradeoffs, culminating in a partner course API project combining REST operations with a bounded GraphQL read layer.
Compare REST and GraphQL using resource contracts, query cost, authorization and compatibility tradeoffs.
What you'll learn
Turn a business request into a testable contract
Design an API contract that survives retries
Represent resources and state changes consistently
Control resolver scope and query cost
Course details
Duration
9 weeks
Best for
Learners who already have: HTTP, JSON and one backend language.
Enrollment isn't open for this course yet — check back soon or contact us.
Course Curriculum
A module-by-module breakdown of what you'll cover in REST, GraphQL & API Engineering.
01Basic
4 topicsWeeks 1–2
- REST Fundamentals: Resources, Verbs, and Status Codes
- Request/Response Design: Pagination, Filtering, and Consistent Error Shapes
- Versioning and Documenting an API
- Project: Design and Document a Complete REST API
02Intermediate
4 topicsWeeks 3–4
- GraphQL Fundamentals: Queries, Mutations, and the Single-Endpoint Model
- API Authentication and Authorization: API Keys, OAuth 2.0, and Scopes
- Idempotency and Designing APIs That Survive Retries
- Project: Add GraphQL, OAuth Scopes, and Idempotency to Your API
03Advanced
9 topicsWeek 5
- Turn a business request into a testable contract
- Design an API contract that survives retries
- Represent resources and state changes consistently
- Control resolver scope and query cost
- Change contracts without silently changing meaning
- Enforce ownership and roles on the server
- Measure the bottleneck before changing architecture
- Test outcomes at the boundary where they can fail
- Connect logs, metrics and traces to a user outcome
04Pro
4 topicsWeeks 6–7
- API Gateways and Rate Limiting at Scale
- Backends for Frontends (BFF) and API Composition
- Contract Testing: Catching Breaking Changes Before They Reach Consumers
- Project: Design a Gateway-Fronted, BFF-Served, Contract-Tested API Architecture
05AI Pro
3 topicsWeeks 8–9
- Using Claude, ChatGPT, and Perplexity to Design and Document APIs
- Verifying AI-Suggested API Designs and Specifications Before Trusting Them
- Project: AI-Assisted API Design with Full Verification
Need this built for your business instead?
If you'd rather have it done than learn it, our solutions team delivers this work for businesses directly.
Real-Time, Industry-Based Projects
This is project-based learning modeled on real industry scenarios — you'll build portfolio-ready work as you go, not just watch lectures.
Partner course API with REST operations and a bounded GraphQL read layer
Every course includes a guided internship on top of your project work — so you graduate with real experience, not just a certificate.
Communication & Soft Skills
Built into every course, alongside the technical curriculum.
Communication Skills
Practice explaining technical work clearly to teammates, managers, and clients.
Practical AI Skills
Hands-on training in using AI tools well — prompting, everyday workflows, and where AI actually helps versus where it doesn't.
Teamwork & Collaboration
Work in small project teams using real workflows like stand-ups and code reviews.
Problem Solving
Build the habit of breaking down ambiguous problems into clear, solvable steps.
Time Management
Learn to plan, prioritize, and deliver project work against realistic deadlines.
Presentation Skills
Present your project work and results with confidence, as you would to a client.
Resume & Profile Building
Build a strong resume, LinkedIn profile, and project portfolio that recruiters notice.
Interview Preparation
Mock interviews and portfolio reviews to get you ready for real job applications.
Career & Placement Support
100% of students enrolled in REST, GraphQL & API Engineering get full access to placement support — real tools and guidance, not just a promise. This is support and access, not a guaranteed job outcome.
Resume Builder
A resume auto-built from your real completed projects and certificates, ready to export.
Shareable Portfolio
A public portfolio page showcasing your approved projects, with a link you can share with employers.
Interview Preparation
Guidance on presenting your projects and experience clearly in real interviews.
Peer & Mentor Community
Ongoing access to our learner community for questions, feedback, and support after you finish.
What Your Certificates Look Like
Real, verifiable certificates with your name, REST, GraphQL & API Engineering, and a QR code anyone can scan to confirm they're genuine — one for completing the course, and a separate one if you take the internship track.
Course Completion Certificate
SAMPLE
Data24ZoneCertificate of Completion
Illustrative recipient
Your Name Here
Example certificate for completion of
REST, GraphQL & API Engineering
- Certificate No.
- D24-SAMPLE
- Mode
- Self-Paced
- Duration
- 9 weeks
- Example issue date
- On completion
Sample only — not a real, issued certificate.
Verification is available only on issued certificates.
Internship Completion Certificate
SAMPLE
Data24ZoneCertificate of Internship
Illustrative recipient
Your Name Here
Example certificate for completion of
REST, GraphQL & API Engineering
- Certificate No.
- D24-SAMPLE
- Mode
- Internship
- Duration
- 9 weeks
- Example issue date
- On completion
Sample only — not a real, issued certificate.
Verification is available only on issued certificates.
Frequently Asked Questions
What will I learn in the REST, GraphQL & API Engineering course?
You'll learn: Turn a business request into a testable contract; Design an API contract that survives retries; Represent resources and state changes consistently; Control resolver scope and query cost.
Is the REST, GraphQL & API Engineering course beginner-friendly?
This is a intermediate-level course, so it assumes some prior familiarity with the subject.
How long does the REST, GraphQL & API Engineering course take to complete?
The course is designed to be completed in approximately 9 weeks, depending on your pace.
What enrollment options are available for REST, GraphQL & API Engineering?
Internship (₹2,499) — Work through real projects with our team and earn an internship certificate (course certificate not included). Self-Paced (₹1,999) — Learn anytime with the full recorded curriculum and community access.
Is there an internship option for REST, GraphQL & API Engineering?
Yes — the Internship track means working through real projects with our team and earning a separate Internship Certificate.
Will I get a certificate after completing REST, GraphQL & API Engineering?
Yes. Self-paced enrollment earns a course completion certificate once your final project is reviewed and approved. Internship enrollment earns an internship certificate once your internship projects are approved. Every certificate is publicly verifiable on our website and can be added directly to your LinkedIn profile.
What kind of projects will I build in REST, GraphQL & API Engineering?
You'll work on real projects such as: Partner course API with REST operations and a bounded GraphQL read layer.
Is placement support included with REST, GraphQL & API Engineering?
Yes — every enrolled student gets full access to our placement support: resume building, a shareable project portfolio, mock interview preparation, and guidance applying what you've built to real job applications. This is support and access, not a guaranteed job outcome — how quickly it leads to an offer depends on the market and your own effort.
