Learning GraphQL by Porcello, Eve -- Read -- Imperial Library of Trantor

Index

Preface

Acknowledgments Conventions Used in This Book Using Code Examples O’Reilly Safari How to Contact Us

1. Welcome to GraphQL

What Is GraphQL?

The GraphQL Specification Design Principles of GraphQL

Origins of GraphQL History of Data Transport

Remote Procedure Call Simple Object Access Protocol REST

REST Drawbacks

Overfetching Underfetching Managing REST Endpoints

GraphQL in the Real World

GraphQL Clients

2. Graph Theory

Graph Theory Vocabulary History of Graph Theory Trees are Graphs Graphs in the Real World

3. The GraphQL Query Language

GraphQL API Tools

GraphiQL GraphQL Playground Public GraphQL APIs

The GraphQL Query

Edges and Connections Fragments

Union types Interfaces

Mutations

Using Query Variables

Subscriptions Introspection Abstract Syntax Trees

4. Designing a Schema

Defining Types

Types Scalar Types Enums

Connections and Lists

One-to-One Connections One-to-Many Connections Many-to-Many Connections

Through types

Lists of Different Types

Union types Interfaces

Arguments

Filtering Data

Data paging Sorting

Mutations Input Types Return Types Subscriptions Schema Documentation

5. Creating a GraphQL API

Project Setup Resolvers

Root Resolvers Type Resolvers Using Inputs and Enums Edges and Connections

One-to-many connections Many-to-many

Custom Scalars

apollo-server-express Context

Installing Mongo Adding Database to Context

GitHub Authorization

Setting Up GitHub OAuth The Authorization Process githubAuth Mutation Authenticating Users

me Query postPhoto mutation Add fake users mutation

Conclusion

6. GraphQL Clients

Using a GraphQL API

fetch Requests graphql-request

Apollo Client Apollo Client with React

Project Setup Configure Apollo Client The Query Component The Mutation Component

Authorization

Authorizing the User Identifying the User

Working with the Cache

Fetch Policies Persisting The Cache Updating the Cache

7. GraphQL in the Real World

Subscriptions

Working with Subscriptions

Posting photos

Consuming Subscriptions

Adding the WebSocketLink Listening for new users

Uploading Files

Handling Uploads on the Server Posting a New Photo with Apollo Client

Security

Request Timeouts Data Limitations Limiting Query Depth Limiting Query Complexity Apollo Engine

Taking the Next Steps

Incremental Migration Schema-First Development GraphQL Events Community Community Slack Channels

Index

← Prev
Back
Next →

← Prev
Back
Next →