A guide for building a production-quality React and GraphQL application.

apollohandbook.tar.gz

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Apollo Client is a popular library in JavaScript which is integrated with React applications to fetch and manage local and remote data with GraphQL. It is a comprehensive state management library, managing the state automatically with minimal code.

In this course, you’ll learn to integrate React applications with a GraphQL server. The course uses Apollo with React applications to query a GraphQL server. You will learn how to use the GraphQL Code Generator to generate TypeScript code that you can use in a React application to query and use GraphQL data in a standardized manner. You will learn how to generate lazy queries and use union types. By the end, you will also learn about mutations and their executions.

This course will help you gain working knowledge of data fetching, caching, and managing with the help of Apollo Client. To further your skills, you may use Apollo Client to integrate with Angular, Vue, Solid, Svelte and other JavaScript frameworks.

Integrating Apollo Client with React Applications

(True or False) GraphQL Code Generator only looks at the GraphQL server’s schema to construct TypeScript types.

(True or False) GraphQL Code Generator only looks at the GraphQL server’s schema to construct TypeScript types.

(True or False) The GraphQL Code Generator will not generate types if no GraphQL queries are defined in our component file(s).

(True or False) The GraphQL Code Generator will not generate types if no GraphQL queries are defined in our component file(s).

To choose a set of valid data types to return.

To pick numerical fields to be extracted for a TypeScript type.

To specify a set of fields for a type. The returned type can only have the specified fields.

In TypeScript, `Pick` is used for what purpose?


In TypeScript, <code>Pick</code> is used for what purpose?

(True or False) The generated `Book` type has the property `__typename?`, which helps us identify what type of object TypeScript is returning.

(True or False) The generated <code>Book</code> type has the property <code>__typename?</code>, which helps us identify what type of object TypeScript is returning.

To read the GraphQL type for a field from the GraphQL schema and assign it to a TypeScript field.


To map TypeScript types to GraphQL types.

The auto-generated GraphQL types use `Scalars` for what purpose?

The auto-generated GraphQL types use <code>Scalars</code> for what purpose?

Test your knowledge of code generated using GraphQL Code Generator.

Introduction

Introducing Apollo Client

Automatically Generated Types

Lazy Queries

Union Types

Mutations

Conclusion

Appendix

Quiz on Automatically Generated Types