@graphql-codegen/typescript-react-query v6.1.0
GraphQL Code Generator is a tool that generates code out of your GraphQL schema. Whether you are developing a frontend or backend, you can utilize GraphQL Code Generator to generate output from your GraphQL Schema and GraphQL Documents (query/mutation/subscription/fragment).
By analyzing the schema and documents and parsing it, GraphQL Code Generator can output code at a wide variety of formats, based on pre-defined templates or based on custom user-defined ones. Regardless of the language that you're using, GraphQL Code Generator got you covered.
GraphQL Code Generator lets you choose the output that you need, based on plugins, which are very flexible and customizable. You can also write your plugins to generate custom outputs that match your needs.
You can try this tool live on your browser and see some useful examples. Check out GraphQL Code Generator Live Examples.
We currently support and maintain these plugins (TypeScript, Flow, React, Angular, MongoDB, Stencil, Reason, and some more), and there is an active community that writes and maintains custom plugins.
Quick Start
Start by installing the basic deps of GraphQL Codegen;
yarn add graphql
yarn add -D @graphql-codegen/cli
GraphQL Code Generator lets you setup everything by simply running the following command:
yarn graphql-codegen init
Question by question, it will guide you through the whole process of setting up a schema, selecting plugins, picking a destination of a generated file, and a lot more.
If you don't want to use the wizard, install it by yourself and create a basic codegen.yml
configuration file, point to your schema, and pick the plugins you wish to use.
Install CLI using yarn
:
yarn add -D @graphql-codegen/cli
And create a config like below:
schema: http://localhost:3000/graphql
generates:
./src/types.d.ts:
plugins:
- typescript
Then, run the code-generator using graphql-codegen
command:
yarn graphql-codegen
The command above may fetch (for example) the following GraphQL schema:
type Author {
id: Int!
firstName: String!
lastName: String!
posts(findTitle: String): [Post]
}
type Post {
id: Int!
title: String!
author: Author!
}
type Query {
posts: [Post]
}
schema {
query: Query
}
And generate the following TypeScript typings:
export type Maybe<T> = T | null;
/** All built-in and custom scalars, mapped to their actual values */
export type Scalars = {
ID: string,
String: string,
Boolean: boolean,
Int: number,
Float: number,
};
export type Author = {
__typename?: 'Author',
id: Scalars['Int'],
firstName: Scalars['String'],
lastName: Scalars['String'],
posts?: Maybe<Array<Maybe<Post>>>,
};
export type AuthorPostsArgs = {
findTitle?: Maybe<Scalars['String']>
};
export type Post = {
__typename?: 'Post',
id: Scalars['Int'],
title: Scalars['String'],
author: Author,
};
export type Query = {
__typename?: 'Query',
posts?: Maybe<Array<Maybe<Post>>>,
};
Links
Besides our docs page, feel free to go through our published Medium articles to get a better grasp of what GraphQL Code Generator is all about:
Contributing
Feel free to open issues and pull requests. We're always welcome support from the community.
For a contribution guide, please refer to: http://graphql-code-generator.com/docs/custom-codegen/contributing
License
MIT
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