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GraphQL

A complete GraphQL learning path covering schema design, queries, mutations, subscriptions, resolvers, Apollo, federation, and performance for building flexible and efficient APIs.

technicalintermediate12 nodes80h total
  1. 1

    GraphQL Fundamentals

    Understand GraphQL schema, types, queries, and mutations

    Completion criteria: Write GraphQL queries and mutations for a sample schema

    Next step: Learn schema design

    ⏱ 8h

  2. 2

    Schema Design Best Practices

    Design GraphQL schemas with proper types, interfaces, and unions

    Prerequisites: gr-01

    Completion criteria: Design a complete GraphQL schema for a domain

    Next step: Study resolvers

    ⏱ 10h

  3. 3

    Resolvers and Data Fetching

    Implement resolvers with data loaders for efficient fetching

    Prerequisites: gr-02

    Completion criteria: Build resolvers with DataLoader to solve N+1 queries

    Next step: Learn mutations and subscriptions

    ⏱ 10h

  4. 4

    Mutations and Subscriptions

    Implement mutations for writes and subscriptions for real-time

    Prerequisites: gr-03

    Completion criteria: Build real-time features with subscriptions

    Next step: Study Apollo Server

    ⏱ 8h

  5. 5

    Apollo Server and Client

    Build GraphQL servers and clients with Apollo ecosystem

    Prerequisites: gr-04

    Completion criteria: Build a full-stack GraphQL app with Apollo

    Next step: Learn authentication

    ⏱ 10h

  6. 6

    Authentication and Authorization in GraphQL

    Implement auth with context, directives, and field-level security

    Prerequisites: gr-05

    Completion criteria: Add field-level authorization to a GraphQL API

    Next step: Study error handling

    ⏱ 8h

  7. 7

    Error Handling and Validation

    Handle errors, validation, and custom error formatting in GraphQL

    Prerequisites: gr-06

    Completion criteria: Implement comprehensive error handling in a GraphQL API

    Next step: Learn caching strategies

    ⏱ 6h

  8. 8

    Caching and Performance

    Implement caching, persisted queries, and query complexity analysis

    Prerequisites: gr-07

    Completion criteria: Optimize a GraphQL API with caching and complexity limits

    Next step: Study testing

    ⏱ 8h

  9. 9

    Testing GraphQL APIs

    Write unit, integration, and schema tests for GraphQL

    Prerequisites: gr-08

    Completion criteria: Create comprehensive tests for a GraphQL API

    Next step: Learn federation

    ⏱ 6h

  10. 10

    Schema Federation and Stitching

    Build federated GraphQL services with Apollo Federation

    Prerequisites: gr-09

    Completion criteria: Build a federated GraphQL gateway over microservices

    Next step: Study file uploads

    ⏱ 8h

  11. 11

    File Uploads and Advanced Topics

    Handle file uploads, batching, and relay-style pagination

    Prerequisites: gr-10

    Completion criteria: Implement file uploads and cursor-based pagination

    Next step: Build a capstone GraphQL project

    ⏱ 6h

  12. 12

    Capstone GraphQL Project

    Build a production GraphQL API with full features

    Prerequisites: gr-11

    Completion criteria: Deliver a deployed, tested, optimized GraphQL API

    Next step: Explore GraphQL code generation and explore federation at scale

    ⏱ 10h