GraphQL Course Online

11 Lesson

40 Hours

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igmGuru offers a GraphQL course that helps developers master modern API development using JavaScript, Node.js, and Apollo Server. GraphQL is an open-source query language that allows clients to request specific data from multiple sources in a single request. This training covers schema design, queries, mutations, resolvers, and API deployment using Apollo Server. Learners gain practical experience connecting GraphQL APIs to front-end frameworks such as React, implementing authentication, managing real-time updates with subscriptions, and optimizing API performance. The program prepares professionals to build production-ready GraphQL APIs for web and mobile applications.

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Overview

Prerequisites for GraphQL Course

Understanding of APIs and HTTP
Proficiency in JavaScript or TypeScript (primary focus) or any backend language such as Java or Python
Knowledge of ES6 and asynchronous programming concepts
Familiarity with web concepts and command-line interfaces
Experience with package managers like npm
Basic understanding of JSON and databases (SQL or NoSQL)
Installed IDE such as Visual Studio Code or IntelliJ IDEA
React knowledge beneficial but not mandatory
Experience working with REST APIs

What Will You Learn

GraphQL fundamentals and core principles
Schema Definition Language (SDL)
Types, queries, and mutations
Resolver functions for data handling
Writing and executing queries
Creating and managing mutations
Using arguments and variables in queries
Building GraphQL servers with Apollo Server
Connecting clients using Apollo Client
Testing and debugging with GraphiQL and Apollo Explorer
API performance optimization
Authentication and authorization in GraphQL
Implementing caching strategies
Real-time data handling with subscriptions

Who Should Do This Course

Web developers
JavaScript developers
React developers
Software developers
Front-end engineers
Back-end developers
Full-stack developers
Recent graduates in computer science or IT fields

Job Roles After GraphQL Training

GraphQL Developer
Backend Developer
Full Stack Developer
API Developer
Software Engineer
Web Application Developer
Frontend Engineer (working with GraphQL APIs)
Mobile Application Developer
Cloud Application Developer
Technical Consultant (API & Integration)

Key Features

1 On 1 Training Option Available
24 X 7 Lifetime Support & Access
Small Batches Upto 10 Participants
Experienced & Professional Trainers
100% Job Assistance
Flexible Schedule

Course Curriculum

Lesson 1 - Introduction to GraphQL

1. What is GraphQL

2. Key differences between GraphQL and REST

3. Core concepts: Schema, Query, Mutation, Resolver

4. Setting up the development environment

Lesson 2 - Schema and Type System

1. Understanding Schema Definition Language (SDL)

2. Defining object types, fields, and relationships

3. Scalars, enums, interfaces, and unions

4. Schema design best practices

Lesson 3 - Queries and Mutations

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

Lesson 4 - Resolvers and Data Fetching

1. How resolvers work

2. Writing resolver functions

3. Connecting resolvers to databases and APIs

4. Handling errors and nullability in resolvers

Lesson 5 - Building a GraphQL Server

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

Lesson 6 - Client-Side Integration

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

Lesson 7 - Advanced GraphQL Concepts

1. Authentication and authorization in GraphQL

2. Implementing caching and performance optimization

3. Using directives and schema stitching

4. Pagination and batching requests

Lesson 8 - Subscriptions and Real-Time Updates

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

Lesson 9 - Connecting to Databases

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

Lesson 10 - Deployment and Best Practices

1. Deploying a GraphQL API to cloud platforms

2. Securing GraphQL endpoints

3. Schema evolution and deprecation handling

4. Monitoring and logging GraphQL performance

Lesson 11 - Hands-On Projects

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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1-800-7430-173 (US Toll Free)

+91 7240740740 (India)

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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 09 Jul 2026
Weekday Batch 13 Jul 2026
Weekend Batch 11 Jul 2026

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Customized Training Delivery Model
Flexible Training Schedule Options
Industry Experienced Trainers
24x7 Support

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Want to know Today's Offer

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.

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GraphQL Course Online