gatsby-config.js

module.exports = {
  plugins: [
    {
      resolve: `gatsby-plugin-gtag`,
      options: {
        trackingId: process.env.GOOGLE_ANALYTICS_ID,
        head: true,
        anonymize: true,
        respectDNT: true,
        pageTransitionDelay: 0,
      },
    },
    {
      resolve: 'gatsby-source-filesystem',
      options: {
        name: 'guides',
        path: `${__dirname}/guides/`,
      },
    },
    {
      resolve: 'gatsby-source-filesystem',
      options: {
        name: 'src',
        path: `${__dirname}/src/`,
      },
    },
    {
      resolve: 'gatsby-source-filesystem',
      options: {
        name: 'images',
        path: `${__dirname}/images/`,
      },
    },
    {
      resolve: 'gatsby-plugin-html-attributes',
      options: {
        lang: 'en',
      },
    },
    {
      resolve: 'gatsby-plugin-mdx',
      options: {
        gatsbyRemarkPlugins: [
          {
            resolve: `gatsby-remark-images`,
            options: {
              maxWidth: 1000,
            },
          },
        ],
        extensions: ['.md', '.mdx'],
        defaultLayouts: {
          default: require.resolve('./src/templates/post.js'),
        },
      },
    },
    {
      resolve: `gatsby-plugin-offline`,
      options: {
        precachePages: [`/*`],
      },
    },
    'gatsby-plugin-material-ui',
    'gatsby-plugin-react-helmet',
    'gatsby-source-local-git',
    'gatsby-plugin-offline',
    'gatsby-remark-images',
    'gatsby-plugin-sharp',
  ],
};