Your Complete GraphQL Roadmap: Beginner to Pro

Learn to Build Efficient, Flexible APIs with GraphQL – From Fundamentals to Production-Ready APIs

Basic overview

What is GraphQL?

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Why Learn GraphQL?

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Estimated time commitment for the roadmap.

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Phases of the GraphQL Roadmap

Phase 1: Introduction to GraphQL

What is GraphQL?

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Differences Between REST and GraphQL

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Benefits and Use Cases of GraphQL

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How GraphQL Works (Schemas, Queries, Resolvers)

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Phase 2: Setting Up Environment

Installing Node.js and npm/yarn

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Creating a Basic GraphQL Server with Apollo Server / Express-GraphQL

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Exploring GraphiQL / GraphQL Playground

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Phase 3: Core Concepts

Schemas: Types, Queries, Mutations

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Types: Scalar, Object, Enum, Union, Interface, Input

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Resolvers: Basics and Field-Level Resolvers

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Queries: Writing and Executing Read Operations

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Mutations: Write and Update Operations

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Phase 4: Advanced Query Features

Nested Queries

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Aliases and Fragments

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Variables in Queries

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Pagination (Cursor-based and Offset-based)

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Filtering and Sorting

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Phase 5: Connecting with Databases

Connecting GraphQL with MongoDB / PostgreSQL

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Using ORM Tools (Mongoose, Prisma, TypeORM)

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Dynamic Resolver Functions with Database Integration

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Phase 6: Authentication & Authorization

JWT and Session-based Auth

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Securing Mutations and Queries

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Role-based Access Control in GraphQL

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Phase 7: GraphQL Subscriptions

Real-time Data with Subscriptions

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Setting up WebSocket Server

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Using Apollo Server with Subscriptions

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Phase 8: GraphQL on Frontend

Integrating GraphQL with React (Apollo Client)

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GraphQL with Vue and Angular

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Fetching Data using Queries and Mutations on Client

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Managing Cache and State with Apollo Client

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Phase 9: Error Handling & Debugging

Proper Error Messages in Resolvers

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Custom Error Types

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Logging and Monitoring GraphQL APIs

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Phase 10: Performance Optimization

Query Complexity and Depth Limiting

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Batching and Caching with DataLoader

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Persisted Queries

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Rate Limiting & Throttling

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Phase 11: GraphQL in Production

Schema Stitching and Federation (Apollo Federation)

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Versioning Strategies

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Deploying GraphQL Server (Vercel, Heroku, AWS)

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Best Practices for Scaling GraphQL

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Phase 12: Projects and Real-world Practice

Blogging Platform with GraphQL and MongoDB/PostgreSQL

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GraphQL API for E-commerce System

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Chat App with GraphQL Subscriptions

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Integration with GraphCMS, Hasura or StepZen

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