GraphQL: Language Feature Support

Changelog | Discord Channel | LSP Server Docs

GraphQL extension for VSCode built with the aim to tightly integrate the GraphQL Ecosystem with VSCode for an awesome developer experience.

.graphql, .gql file extension support and gql/graphql tagged template literal support for tsx, jsx, ts, js

• syntax highlighting (provided by vscode-graphql-syntax)
• autocomplete suggestions
• validation against schema
• snippets (interface, type, input, enum, union)
• hover support
• go to definition support (input, enum, type)
• outline support

Getting Started

This extension requires a graphql-config file.

To support language features like completion and "go-to definition" across multiple files, please include documents in the graphql-config file default or per-project

Simplest Config Example

# .graphqlrc.yml or graphql.config.yml
schema: 'schema.graphql'
documents: 'src/**/*.{graphql,js,ts,jsx,tsx}'

package.json:

"graphql": {
  "schema": "https://localhost:3001/graphql",
  "documents": "**/*.{graphql,js,ts,jsx,tsx}"
},

// .graphqlrc.ts or graphql.config.ts
export default {
  schema: 'schema.graphql',
  documents: '**/*.{graphql,js,ts,jsx,tsx}',
};

same for .json, .toml, etc

Additional Features

• Loads the LSP server upon detecting a graphql-config file at root level or in a parent level directory, or a package.json file with graphql config
• Loads .graphql, .gql files, and detects gql, graphql tags and /** GraphQL */ and #graphql comments in js, ts, jsx, tsx, vue files
• pre-load schema and fragment definitions
• Support graphql-config files with one or multiple projects (multi-root workspaces are not yet supported)
• the language service re-starts on saved changes to vscode settings and/or graphql config!

Configuration

Advanced Example

Multi-project can be used for both local files, URL defined schema, or both

import dotenv from 'dotenv';
dotenv.config();

// .graphqlrc.ts or graphql.config.ts
export default {
  projects: {
    app: {
      schema: ['src/schema.graphql', 'directives.graphql'],
      documents: ['**/*.{graphql,js,ts,jsx,tsx}', 'my/fragments.graphql'],
    },
    db: {
      schema: 'src/generated/db.graphql',
      documents: ['src/db/**/*.graphql', 'my/fragments.graphql'],
      extensions: {
        endpoints: {
          default: {
            url: 'https://localhost:3001/graphql/',
            headers: {
              Authorization: `Bearer ${process.env.API_TOKEN}`,
            },
          },
        },
      },
    },
  },
};

Notice that documents key supports glob pattern and hence ["**/*.graphql"] is also valid.

Frequently Asked Questions

The extension fails with errors about duplicate types

Your object types must be unique per project (as they must be unique per schema), and your fragment names must also be unique per project.

The extension fails with errors about missing scalars, directives, etc

Make sure that your schema pointers refer to a complete schema!

In JSX and TSX files I see completion items I don't need

The way vscode lets you filter these out is on the user end

So you'll need to add something like this to your global vscode settings:

"[typescriptreact]": {
  "editor.suggest.filteredTypes": {
    "snippet": false
  }
},
"[javascriptreact]": {
  "editor.suggest.filteredTypes": {
    "snippet": false
  }
}

My graphql config file is not at the root

Good news, we have configs for this now!

You can search a folder for any of the matching config file names listed above:

"graphql-config.load.rootDir": "./config"
"graphql-config.envFilePath": "./config/.dev.env"

Or a specific filepath:

"graphql-config.load.filepath": "./config/my-graphql-config.js"

Or a different configName that allows different formats:

"graphql-config.load.rootDir": "./config",
"graphql-config.load.configName": "acme"

which would search for ./config/.acmerc, .config/.acmerc.js, .config/acme.config.json, etc matching the config paths above

If you have multiple projects, you need to define one top-level config that defines all project configs using projects

How do I enable language features for an embedded graphql string?

Please refer to the vscode-graphql-syntax reference files (js,ts,svelte,vue) to learn our template tag, comment and other graphql delimiter patterns for the file types that the language server supports. The syntax highlighter currently supports more languages than the language server. If you notice any places where one or the other doesn't work, please report it!

Known Issues

• the locally generated schema file for definition lookup currently does not re-generate on schema changes. this will be fixed soon.
• multi-root workspaces support will be added soon as well.
• some graphql-config options aren't always honored, this will also be fixed soon

Attribution

Thanks to apollo for their graphql-vscode grammars! We have borrowed from these on several occasions. If you are looking for the most replete set of vscode grammars for writing your own extension, look no further!

Development

This plugin uses the GraphQL language server

1. Clone the repository - https://github.com/graphql/graphiql
2. yarn
3. Run "VScode Extension" launcher in vscode
4. This will open another VSCode instance with extension enabled
5. Open a project with a graphql config file - ":electric_plug: graphql" in VSCode status bar indicates that the extension is in use
6. Logs for GraphQL language service will appear in output section under GraphQL Language Service

Contributing back to this project

This repository is managed by EasyCLA. Project participants must sign the free (GraphQL Specification Membership agreement) before making a contribution. You only need to do this one time, and it can be signed by individual contributors or their employers.

To initiate the signature process please open a PR against this repo. The EasyCLA bot will block the merge if we still need a membership agreement from you.

You can find detailed information here. If you have issues, please email operations@graphql.org.

If your company benefits from GraphQL and you would like to provide essential financial support for the systems and people that power our community, please also consider membership in the GraphQL Foundation.

License

MIT