Ecosyste.ms: Awesome

An open API service indexing awesome lists of open source software.

Awesome Lists | Featured Topics | Projects

https://github.com/gajus/format-graphql

Formats GraphQL schema definition language (SDL) document.
https://github.com/gajus/format-graphql

formatter graphql linter sdl sort

Last synced: about 2 months ago
JSON representation

Formats GraphQL schema definition language (SDL) document.

Awesome Lists containing this project

README

        

# format-graphql

[![GitSpo Mentions](https://gitspo.com/badges/mentions/gajus/format-graphql?style=flat-square)](https://gitspo.com/mentions/gajus/format-graphql)
[![Travis build status](http://img.shields.io/travis/gajus/format-graphql/master.svg?style=flat-square)](https://travis-ci.org/gajus/format-graphql)
[![Coveralls](https://img.shields.io/coveralls/gajus/format-graphql.svg?style=flat-square)](https://coveralls.io/github/gajus/format-graphql)
[![NPM version](http://img.shields.io/npm/v/format-graphql.svg?style=flat-square)](https://www.npmjs.org/package/format-graphql)
[![Canonical Code Style](https://img.shields.io/badge/code%20style-canonical-blue.svg?style=flat-square)](https://github.com/gajus/canonical)
[![Twitter Follow](https://img.shields.io/twitter/follow/kuizinas.svg?style=social&label=Follow)](https://twitter.com/kuizinas)

Formats GraphQL schema definition language (SDL) document.

---

* [Motivation](#motivation)
* [Behaviour](#behaviour)
* [Example](#example)
* [Usage](#usage)
* [Command Line](#command-line)
* [Node API](#node-api)
* [Hooks](#hooks)

## Motivation

As schema grows in size, it becomes desirable to automate schema organisation. The primary function of `format-graphql` is to sort definitions and fields in an alphabetical order, therefore enabling predictable discovery and grouping of related schema entities.

## Behaviour

Alphabetically sorts definitions, fields and arguments.

### Example

Input:

```graphql
type Query {
bananas: [Banana!]!
apples: [Apple!]!
}

type Apple {
name: String!
id: ID!
}

type Banana {
name: String!
id: ID!
}

```

Output:

```graphql
type Apple {
id: ID!
name: String!
}

type Banana {
id: ID!
name: String!
}

type Query {
apples: [Apple!]!
bananas: [Banana!]!
}

```

## Usage

### Command Line

```bash
$ format-graphql --help
Sort GraphQL schema definition language (SDL) document.

Positionals:
sdl-path Path to the GraphQL schema definition (SDL) document. [string]

Options:
--version Show version number [boolean]
--help Show help [boolean]
--sort-arguments Sort on arguments [boolean] [default: true]
--sort-definitions Sort on definitions [boolean] [default: true]
--sort-enums Sort on enums [boolean] [default: true]
--sort-fields Sort on fields [boolean] [default: true]
--write Overrides contents of the SDL document.
[boolean] [default: false]

$ # Prints formatted schema.
$ format-graphql ./schema.graphql
$
$ # Overrides target schema.
$ format-graphql --write=true ./schema.graphql

```

### Node API

`formatSdl(schema, options)`

Returns a formatted GraphQL SDL String.

#### Parameters

- `schema`: string
- `options` (optional): object:

```
{
sortDefinitions?: boolean,
sortEnums?: boolean,
sortFields?: boolean,
sortArguments?: boolean,
}
```

#### Example

```js
import {formatSdl} from 'format-graphql';

formatGraphql('type Foo { bar: String }');
```

### Hooks

I recommend using [husky](https://www.npmjs.com/package/husky) to setup a pre-commit hook that would format the schema, e.g.

```json
"husky": {
"hooks": {
"pre-commit": "format-graphql --write true src/schema.graphql"
}
},

```