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Derks Roy, Checinski Gaetano - Fullstack GraphQL [2020, PDF/EPUB, ENG] + code

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Post 12-Apr-2021 18:00

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Fullstack GraphQL
 Год издания: 2020
Автор: Derks Roy, Checinski Gaetano
Издательство: newline
Язык: Английский
Формат: PDF/epub
Качество: Издательский макет или текст (eBook)
Интерактивное оглавление: Да
Количество страниц: 231
Описание: Build Robust, Safe, and Flexible APIs with GraphQL
GraphQL changed the way data is transferred between applications.
As you will work through this book, we hope you won’t just add GraphQL to your toolbox, but also develop a new way of thinking about data models, APIs, and full-stack development.
GraphQL – and it’s huge ecosystem – give you tools to create and consume flexible, easy-to-use, type-safe APIs.
Usage Driven: It encourages users to define queries that specify what data to fetch in a granular way.
Intuitive: GraphQL delivers you only the data that you request, in the exact format that you requested
Self-descriptive: GraphQL schemas are strongly typed and define a strict contract between a query and its response.
GraphQL embodies many lessons learned from API design that enforces several best practices into one solution, and in Fullstack GraphQL we show you how to use these tools with practical code-driven examples.
What’s in the book
Fullstack GraphQL is the busy engineer’s guide to building real-world GraphQL servers and clients with examples in Node.js, React, TypeScript, and Apollo.
How to write GraphQL Schemas
How to write flexible APIs with GraphQL and Node.js
How to generate TypeScript types from your GraphQL types – for type-safe code that matches your API
How to use an ORM to automatically generate your GraphQL API
How to setup authentication and authorization for your API
How to use Apollo Client with Hooks in your React app
How to use GraphQL developer tools
How to optimize your GraphQL server fetching with DataLoader
How to paginate queries and write efficient pagination resolvers
How to modify data with Mutations

Примеры страниц

Оглавление

Motivation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
What is GraphQL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Why GraphQL? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Usage driven and Intuitive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Self-descriptive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Other advantages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Join Our Discord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Hello GraphQL - GraphiQL and Github’s GraphQL Playground . . . . . . . 11
Enter GraphiQL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Our First Query . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Named Queries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Multiple Queries and Renaming Result fields . . . . . . . . . . . . . . . . . . 24
Fragments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Union Types and Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Pagination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Mutations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
GraphQL queries over HTTP - fetching with fetch and curl . . . . . . . . 37
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Hello GraphQL from Node . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
A GraphQL Hello World from Node . . . . . . . . . . . . . . . . . . . . . . . 39
Making Changes with Mutations . . . . . . . . . . . . . . . . . . . . . . . . . 41
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Hello GraphQL in the Browser . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
A GraphQL Hello World from Localhost . . . . . . . . . . . . . . . . . . . . 43
Putting the Query in the App . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Creating a Custom Hook . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Making Updates with Mutations . . . . . . . . . . . . . . . . . . . . . . . . . 49
Handling User Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Picking a GraphQL Client . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
GraphQL is just JSON over HTTP (well, usually) . . . . . . . . . . . . . . . 54
Why You Might Want a Dedicated GraphQL Client . . . . . . . . . . . . . . 55
So What Are The Options? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
graphql-request . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
urql . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Relay Modern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Apollo Client . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
What to Choose? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
The Basics of Apollo Client and React . . . . . . . . . . . . . . . . . . . . . . . . 62
Apollo Client . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Getting Hooked on useQuery . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Getting hooked on useMutation . . . . . . . . . . . . . . . . . . . . . . . . . . 66
How to use Apollo Client across your app . . . . . . . . . . . . . . . . . . . . 67
ApolloClient and Testing Components . . . . . . . . . . . . . . . . . . . . . . 67
Remember . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Building a TypeSafe GraphQL React Client App - Part 1 . . . . . . . . . . . . 72
What are we building? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Tooling and Project Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
TypeScript and GraphQL Types - There is a difference . . . . . . . . . . . . 75
Generating Types with graphql-codegen . . . . . . . . . . . . . . . . . . . . . 76
Generating Types for Queries . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Generating Helper Functions for Apollo . . . . . . . . . . . . . . . . . . . . . 79
Building the Issue Finder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Creating the Search Component . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Visualizing Issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Pagination with cursors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Tracking our cursorState . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Building a TypeSafe GraphQL React Client App - Part 2 . . . . . . . . . . . . 93
What are we building? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Loading Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Mutations - Modifying Existing Data . . . . . . . . . . . . . . . . . . . . . . . 103
Mutations - Creating New Data . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Refetching Queries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Manually Updating the Apollo Cache . . . . . . . . . . . . . . . . . . . . . . 110
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
What’s Next? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
FAQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Your First GraphQL Server with Apollo Server . . . . . . . . . . . . . . . . . . 115
Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Schema . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
The Obligatory Boilerplate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Mocking the Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Resolvers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Chaining Resolvers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Passing Arguments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Using GraphQL Servers with A Database . . . . . . . . . . . . . . . . . . . . . 137
Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Using GraphQL with a Database . . . . . . . . . . . . . . . . . . . . . . . . . 138
Queries with pagination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Writing Mutation Resolvers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
Handling Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Caching and Batching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Optimized queries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Batching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Caching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Cost computation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Authentication and Authorization in GraphQL . . . . . . . . . . . . . . . . . . 178
JWT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
Resolver Authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Context Authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Schema Authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Code First GraphQL with TypeORM and TypeGraphQL . . . . . . . . . . . . 205
TypeGraphQL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Implementing Pagination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
Using Context in a Resolver . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
TypeORM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Authorization with TypeGraphQL . . . . . . . . . . . . . . . . . . . . . . . . 221
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
More on TypeGraphQL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
Where to Go From Here? Advanced GraphQL . . . . . . . . . . . . . . . . . . 224
What did you think? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
Awesome GraphQL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
Say Hello . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
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