gatsby-config.js

const languages = require('./src/data/languages')

module.exports = {
  siteMetadata: {
    title: 'Gatsby Default Starter',
    languages,
  },
  plugins: [
    'gatsby-plugin-react-helmet',
    {
      resolve: `gatsby-plugin-manifest`,
      options: {
        name: 'gatsby-starter-default',
        short_name: 'starter',
        start_url: '/',
        background_color: '#663399',
        theme_color: '#663399',
        display: 'minimal-ui',
        icon: 'src/images/gatsby-icon.png', // This path is relative to the root of the site.
      },
    },
    'gatsby-plugin-offline',
    `gatsby-transformer-json`,
    {
      resolve: `gatsby-source-filesystem`,
      options: {
        name: `data`,
        path: `${__dirname}/data/`,
      },
    },
    {
      resolve: `gatsby-plugin-google-analytics`,
      options: {
        trackingId: `UA-116175565-1`,
      },
    },
    {
      resolve: 'gatsby-plugin-react-svg',
      options: {
        rule: {
          include: /assets/,
        },
      },
    },
    {
      resolve: 'gatsby-plugin-i18n',
      options: {
        langKeyForNull: 'any',
        langKeyDefault: languages.defaultLangKey,
        useLangKeyLayout: false,
      },
    },
  ],
}