Udemy – GraphQL Full Course: Backend, Frontend, Testing & Mutations

GraphQL is quickly becoming the industry standard for building modern, scalable APIs — and this course is designed to take you from absolute beginner to advanced GraphQL developer with real-world implementation. This is not a theory-only course. You will build a complete GraphQL application from scratch, understand how GraphQL works internally, and learn how it is used in production environments.

What You’ll Learn in This Course

GraphQL Fundamentals (Beginner Friendly)

You’ll start with the basics and gradually move towards advanced topics:

• What GraphQL is and why companies prefer it over REST
• Writing your first GraphQL query
• Writing mutations to modify data
• Understanding GraphQL schema
• Schema structure & best practices
• Deep dive into Resolvers
• Complete server setup from scratch
• Understanding server context
• Code generation on the server side
• Implementing schema & resolvers step by step
• Setting up the GraphQL client
• Executing queries from the client
• Client-side code generation
• Implementing search functionality
• Authentication with GraphQL
• User profile implementation
• Cancel application logic
• Admin functionality
• Performance optimization using Dataloaders

GraphQL Mastery (Advanced Level)

Once you’re comfortable with the fundamentals, we move into advanced, real-world GraphQL mastery:

Testing (Backend + Frontend)

• Backend testing fundamentals
• Backend testing setup
• Testing GraphQL queries & mutations
• Frontend testing basics
• Jest setup for frontend testing
• Mocking GraphQL data
• Testing React + GraphQL integration