gql-types-generator

gql-types-generator

Package to generate types depending on GraphQL scheme, mutations and queries.

Install

npm install --save gql-types-generator

yarn add gql-types-generator

Usage

gql-types-generator provides 2 ways of generating types:

1. Command line interface;
2. TypeScript / JavaScript code.

Warning

When using CLI, each glob will be formatted as process.cwd() + glob.

When using compile function directly through JS, it will not format any glob, so make sure you passed correct globs

Command line interface

After installation of package is done, gql-types-generator command becomes available.

Usage: gql-types-generator [options] <schema-globs>

Options:
  --operations <globs>       globs to find queries and mutations
  --flatten-operations       states if operations should be placed in a single file
  --remove-description       states if description should be removed
  --display <sort>           how to display compiled types. Valid values are "as-is" and "default". By default, generator compiles scalars first, then enums, interfaces, inputs, unions and then types. "as-is" places types as they are placed in schema
  --output-directory <path>  path to directory where typings will be saved
  -h, --help                 display help for command

Programmatic control

If needed, you can use compile function to generate types.

Options

Current list of options

Examples

When schema is separated between 2 directories:

import {compile} from 'gql-types-generator';
import * as path from 'path';

compile({
  schemaPath: [
    path.resolve(__dirname, 'schema-artifacts-folder-1/*.graphql'),
    path.resolve(__dirname, 'schema-artifacts-folder-2/*.graphql')
  ],
  outputDirectory:  path.resolve(__dirname, 'compiled'),
});

When all the schema partials are in the only 1 directory:

compile({
  schemaPath: path.resolve(__dirname, 'schema-artifacts/*.graphql'),
  outputDirectory:  path.resolve(__dirname, 'compiled'),
});

When you already have schema as text:

compile({ 
  schema: 'type Query { ... }',
  outputDirectory:  path.resolve(__dirname, 'compiled'),
});

When you want to sort schema types as they are placed in original GQL schema:

compile({
  schemaPath: path.resolve(__dirname, 'schema-artifacts/*.graphql'),
  outputDirectory:  path.resolve(__dirname, 'compiled'),
  sort: 'as-is'
});