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#0
Learn GraphQL - Skill Preparation and Environment Setup
Episode 0 lays the foundation for the entire series: the essential skills you must master, the software you need to prepare, and a full development environment setup with TypeScript, ESLint, Prettier, and the GraphQL extension for VS Code.
August 10, 2026
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#1
Learn GraphQL - History and Reasons to Use GraphQL
This episode opens the GraphQL journey from the historical side: its birth at Facebook in 2012, open-sourcing in 2015, and adoption by large companies. You'll also understand the REST problems that drove GraphQL's creation and a comparison of GraphQL versus REST versus gRPC.
August 10, 2026
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#2
Learn GraphQL - Architecture and Fundamental Concepts
This episode dissects how GraphQL works under the hood: parsing, validation, and query execution, the main components such as SDL and resolvers, the three basic operations — query, mutation, and subscription — as well as gateway and federation architectural patterns.
August 10, 2026
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#3
Learn GraphQL - Building Schemas and Understanding the Type System
Episode 3 dissects every element of the Schema Definition Language: built-in and custom scalar types, object types, input types, enums, interfaces, unions, plus list types and the modifiers that control nullability. You'll design a first schema that's ready to use.
August 10, 2026
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#4
Learn GraphQL - Mastering Query Operations
Episode 4 masters query operations in GraphQL: basic structure, field selection and nested queries, arguments with default values, aliases, fragments with type conditions, variables, and the @include, @skip, and @deprecated directives.
August 10, 2026
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#5
Learn GraphQL - Mutations for Create, Update, Delete
Episode 5 covers mutations for writing data: basic structure and syntax, designing good input types, complete CRUD operations, response patterns with payloads, serial execution for multiple mutations, and best practices for naming and idempotency.
August 10, 2026
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#6
Learn GraphQL - Implementing Resolvers and Data Fetching
Episode 6 dissects the resolver as the heart of GraphQL: the anatomy of a resolver function, the four parameters — parent, args, context, and info — resolver chains, the context object for sharing data between resolvers, async resolvers, and modular file organization.
August 10, 2026
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#7
Learn GraphQL - Building a GraphQL Server with Apollo Server
Episode 7 assembles your first GraphQL server using Apollo Server 4: installing dependencies, constructing a schema from type definitions and a resolver map, Express integration, using Apollo Sandbox for testing, and a development setup with hot reload and TypeScript.
August 10, 2026
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#8
Learn GraphQL - Connecting to Databases and External APIs
Episode 8 connects GraphQL to real data sources: data source patterns, SQL integration with Prisma, NoSQL integration with MongoDB and Redis, the RESTDataSource class for external APIs, and best practices for separation of concerns between resolvers and the data layer.
August 10, 2026
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#9
Learn GraphQL - Solving the N+1 Problem with DataLoader
Episode 9 conquers the N+1 problem, GraphQL's classic performance issue: understanding how N+1 arises when resolver chains trigger repeated queries, the DataLoader batching and caching concepts, implementing a batch loader, integrating loaders into the per-request context, and measuring performance improvements.
August 10, 2026
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