GraphQL Course Online

SKU: 2769
11 Lesson
|
40 Hours
igmGuru's GraphQL Certification Training Course teaches you to design, build, secure, and scale production-grade GraphQL APIs. Through live instructor-led sessions and hands-on labs, you'll master schema design, resolvers, Apollo Federation, real-time subscriptions, and API security — the exact skills employers look for in API-first engineering teams today.

Overview

GraphQL has moved well beyond early adopters like Facebook and GitHub into mainstream enterprise architecture, now powering APIs at companies such as Netflix, Shopify, and PayPal. This GraphQL online training takes you from query fundamentals to advanced topics like federated graphs, caching, and observability. Every module pairs concepts with real coding exercises, so you leave with a portfolio-ready project and the confidence to build, secure, and deploy GraphQL APIs in production environments.

Prerequisites

This course is designed to be accessible to developers with basic programming exposure. You should be comfortable with the following before you begin:

  • Basic understanding of JavaScript or any object-oriented programming language
  • Familiarity with how web APIs work (prior REST API experience is helpful but not mandatory)
  • Basic command-line and Git usage
  • A laptop with Node.js (v18 or later) installed for hands-on labs

No prior GraphQL experience is required - the course begins from the fundamentals and builds up to advanced, enterprise-grade concepts.

Course Objectives

  • Understand GraphQL's core architecture and how it differs from REST, SOAP, and gRPC
  • Design type-safe schemas using GraphQL Schema Definition Language (SDL)
  • Build resolvers, mutations, and real-time subscriptions using Apollo Server
  • Implement authentication, authorization, and field-level access control
  • Optimize query performance using DataLoader and solve the N+1 query problem
  • Deploy and monitor GraphQL APIs in serverless and containerized environments
  • Apply Apollo Federation to build enterprise-scale supergraphs across microservices
  • Prepare for globally recognized GraphQL certification exams

What You Will Learn

  • GraphQL fundamentals: schemas, types, queries, mutations, and subscriptions
  • Setting up a GraphQL server with Apollo Server, Node.js, and Express
  • Connecting GraphQL to SQL and NoSQL databases (PostgreSQL, MongoDB)
  • Client-side integration using Apollo Client and React
  • Authentication with JWT and OAuth2 inside a GraphQL context
  • Error handling, input validation, and custom directives
  • Query complexity analysis, depth limiting, and rate limiting for API security
  • Caching strategies: persisted queries, CDN caching, and Apollo Client cache
  • Apollo Federation and building a supergraph across independent services
  • Testing GraphQL APIs with Jest, plus schema linting and breaking-change detection
  • Deploying GraphQL APIs on AWS Lambda, Cloudflare Workers, and Docker
  • Monitoring and observability using Apollo Studio and GraphQL Inspector
  • Migrating an existing REST API to GraphQL incrementally

Who Should Take This Course?

This GraphQL certification course is built for professionals who work with APIs in any capacity, including:

  • Backend and full-stack developers who want to modernize their API layer
  • Frontend developers who consume APIs and want to reduce over-fetching and under-fetching
  • Software architects evaluating GraphQL for enterprise API strategy
  • DevOps and platform engineers responsible for API performance and security
  • QA engineers who test API-driven applications
  • Technical leads and engineering managers assessing GraphQL adoption
  • Computer science students and recent graduates preparing for developer roles

Skills You Will Gain

  • Schema design and SDL
  • Resolver architecture and data-fetching patterns
  • Query performance optimization
  • API security and access control
  • Federation and microservices integration
  • Apollo Server, Apollo Client, and Apollo Federation
  • GraphiQL and Apollo Studio
  • Node.js, Express, and React
  • API design thinking
  • Debugging and performance tuning
  • Schema documentation and governance

Tools Covered

  • Apollo Server & Apollo Client
  • Apollo Federation & Apollo Studio
  • GraphiQL / GraphQL Playground
  • Node.js & Express.js
  • React.js
  • PostgreSQL & MongoDB
  • Postman (for GraphQL requests)
  • Docker
  • AWS Lambda / Cloudflare Workers
  • Jest (testing)
  • GraphQL Code Generator

Career Outcomes

GraphQL skills are in high demand across product companies, SaaS platforms, and API-first organizations. After completing this course, you'll be prepared for roles such as:

  • GraphQL Developer
  • Backend / API Developer
  • Full-Stack Developer
  • API Architect
  • Software Engineer - API Platform
  • DevOps Engineer (API Layer)
  • Technical Lead - API Development

Salary of GraphQL Developer

Job Role Experience Level India Salary USA Salary
Full Stack Developer Entry Level (0–2 years) ₹1.67–8.18 LPA $84.1K–$221.1K/year
Full Stack Developer Mid Level (2–5 years) ₹3.70 LPA average $136.4K/year average
Backend Developer Mid Level (2–5 years) ₹3.52 LPA average $161.5K/year average
Software Engineer Mid/Senior Level ₹8.88 LPA average $135.2K/year average

Key Features

Course Curriculum

1. What is GraphQL
2. Key differences between GraphQL and REST
3. Core concepts: Schema, Query, Mutation, Resolver
4. Setting up the development environment
1. Understanding Schema Definition Language (SDL)
2. Defining object types, fields, and relationships
3. Scalars, enums, interfaces, and unions
4. Schema design best practices
1. Writing basic and nested queries
2. Creating, updating, and deleting data with mutations
3. Using arguments, aliases, and fragments
4. Query variables and dynamic requests
1. How resolvers work
2. Writing resolver functions
3. Connecting resolvers to databases and APIs
4. Handling errors and nullability in resolvers
1. Setting up a GraphQL server with Apollo Server and Express.js
2. Integrating GraphQL with Node.js (primary focus)
3. Overview of integration options in Python and Java
4. Using GraphQL playgrounds (GraphiQL, Apollo Explorer)
5. Testing and debugging API endpoints
1. Connecting GraphQL APIs with front-end frameworks
2. Using Apollo Client with React
3. Querying data from the client
4. Managing local state and cache
1. Authentication and authorization in GraphQL
2. Implementing caching and performance optimization
3. Using directives and schema stitching
4. Pagination and batching requests
1. Understanding GraphQL subscriptions
2. Setting up WebSocket connections
3. Implementing real-time features with Apollo Server
4. Managing live updates in front-end applications
1. Integrating GraphQL with SQL and NoSQL databases
2. Using Prisma or Sequelize ORM
3. Efficient data fetching and data modeling
4. Handling nested and relational data
1. Deploying a GraphQL API to cloud platforms
2. Securing GraphQL endpoints
3. Schema evolution and deprecation handling
4. Monitoring and logging GraphQL performance
1. Building a full-stack GraphQL API with Apollo Server and React
2. Implementing authentication and subscriptions
3. Performance tuning and caching project
4. Final project review and best practices
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Course Fees

Online Class Room Program

US $ 799.00
100% Money Back Guarantee
  • Duration : 40 Hrs
  • Plus Self Paced

Classes Starting From

  • Fast Track Batch 23 Aug 2026
  • Weekday Batch 24 Aug 2026
  • Weekend Batch 29 Aug 2026

Corporate Training

Corporate Training
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  • Flexible Training Schedule Options
  • Industry Experienced Trainers
  • 24x7 Support

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GraphQL Training Certification

Upon completing the GraphQL training and hands-on projects, learners will receive a Course Completion Certificate. This certification validates your ability to design schemas, write queries and mutations, and build modern APIs using Apollo Server and React, preparing you for real-world API development roles.

GraphQL Training Certification

FAQ's

GraphQL is a query language and runtime for APIs that lets clients request exactly the data they need in a single call. It's commonly used to power web, mobile, and microservices architectures where flexible, efficient data fetching matters.

Not entirely. Many organizations run GraphQL alongside REST, using GraphQL as a flexible aggregation layer over existing REST or database services rather than a wholesale replacement.

No. The course starts with the fundamentals and progresses to advanced topics like federation and security, so a basic programming b


ackground is enough to get started.

Yes, the igmGuru certificate reflects hands-on, project-based skills that employers value, and the curriculum also prepares you for Apollo's industry-recognized certification exams if you want additional validation.

The course runs for 40 hours, combining live instructor-led sessions with hands-on labs and a capstone project. Exact batch schedules vary by weekday and weekend timing.

Yes. Every module includes a practical lab, and the course concludes with a capstone project where you design, secure, and deploy a complete GraphQL application.

GraphQL is the query language and specification; Apollo is a set of tools (Apollo Server, Apollo Client, Apollo Federation) that implement and extend GraphQL for building, connecting to, and scaling real applications.

Yes, igmGuru offers both weekday and weekend batch options so you can train alongside a full-time job or studies.

You retain lifetime access to recorded sessions and course material, along with 24x7 learner support and placem

ent assistance.

Through Apollo Federation, individual services can each expose a piece of a schema, which is then composed into a single unified supergraph - letting teams own their part of the API independently while clients query it as one graph.

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