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Murntek

GraphQL Programming Course

This program walks you through building real APIs with GraphQL — from basic queries and mutations to authentication patterns and performance optimization. You'll work with actual data structures and see how different resolver strategies affect response times.

We focus on practical implementation rather than theoretical concepts. Each module includes working code examples you can deploy and test immediately. By the end, you'll have built several functional GraphQL services and understand when to use GraphQL versus REST in production systems.

GraphQL development workspace

What you'll actually build

The curriculum is organized around real projects you can use as portfolio pieces. Each module adds complexity to your understanding of how GraphQL handles data fetching, mutations, subscriptions, and caching.

You'll start by querying existing APIs, then build your own schema, implement resolvers, and optimize queries for production workloads. The mobile app development module shows you how to integrate GraphQL with React Native and handle offline states during mobile recharge scenarios.

Module 1

Schema Design & Type System

Build type-safe schemas from scratch. Learn how to define object types, scalars, enums, and interfaces that match your data model.

  • Defining custom scalar types
  • Interface and union patterns
  • Input validation strategies
  • Schema stitching basics
Module 2

Resolvers & Data Sources

Connect your schema to databases, REST APIs, and microservices. Handle complex data relationships and nested queries efficiently.

  • DataLoader implementation
  • N+1 query prevention
  • Error handling patterns
  • Context and middleware
Module 3

Mutations & Subscriptions

Implement create, update, and delete operations. Set up real-time data updates using WebSocket subscriptions.

  • Mutation best practices
  • Optimistic UI updates
  • Subscription server setup
  • Event-driven architecture
Module 4

Authentication & Authorization

Secure your API with JWT tokens, role-based permissions, and field-level authorization. Implement rate limiting and request validation.

  • JWT integration patterns
  • Directive-based auth
  • Field-level permissions
  • Rate limiting strategies
Module 5

Caching & Performance

Optimize query performance with Apollo Cache, Redis integration, and query complexity analysis. Reduce response times by 60-80%.

  • Apollo cache configuration
  • Redis caching layer
  • Query complexity limits
  • Performance monitoring
Module 6

Mobile App Integration

Connect GraphQL to React Native apps. Handle offline-first architecture and implement mobile recharge functionality with real-time updates.

  • Apollo Client mobile setup
  • Offline mutation queues
  • Mobile app state sync
  • Push notification triggers

How the program progresses

1

Foundation

Set up your development environment, understand GraphQL fundamentals, and query existing APIs to see how data flows.

2

Implementation

Build your own GraphQL server from scratch, design schemas, write resolvers, and connect to multiple data sources.

3

Production

Add authentication, implement caching strategies, optimize queries, and deploy to cloud infrastructure with monitoring.

4

Integration

Connect GraphQL to mobile applications, handle offline scenarios, and build real-time features with subscriptions.

Code-first approach

Every lesson includes complete, working code samples you can run locally. No pseudocode or simplified examples — you get production-ready implementations you can deploy immediately.

Real project experience

Build five complete applications throughout the course: an e-commerce API, social media feed, mobile recharge platform, real-time chat system, and analytics dashboard.

Performance focus

Learn to identify bottlenecks using Apollo Studio and custom logging. See actual query execution times drop from 800ms to under 50ms through proper caching and DataLoader implementation.

Mobile integration patterns

Implement GraphQL in React Native with offline mutation queues, optimistic updates, and background sync. Build a functional mobile app with payment processing and real-time balance updates.

GraphQL schema development workspace
Student working on GraphQL resolver implementation

What students say after finishing

Khalid Al-Balushi portrait

Khalid Al-Balushi

Backend Developer

The DataLoader module alone changed how I think about database queries. My API response times dropped by 70% after implementing the patterns from week three.

Layla Al-Hinai portrait

Layla Al-Hinai

Full Stack Engineer

Building the mobile recharge app was eye-opening. I now understand exactly when to use GraphQL versus REST, and I've deployed three production APIs since completing the course.

Omar Al-Rashdi portrait

Omar Al-Rashdi

Mobile Developer

The subscription module helped me build a real-time notification system that actually works offline. The code examples were detailed enough to adapt to my specific use case without guessing.