gatsby-config.js

require('dotenv').config({
  path: `.env.${process.env.NODE_ENV}`
});

const config = require('./config');

module.exports = {
  pathPrefix: config.gatsby.pathPrefix,
  siteMetadata: {
    title: config.siteMetadata.title,
    description: config.siteMetadata.description,
    docsLocation: config.siteMetadata.docsLocation,
    ogImage: config.siteMetadata.ogImage,
    favicon: config.siteMetadata.favicon,
    logo: {
      link: config.header.logoLink ? config.header.logoLink : '/',
      image: config.header.logo,
    }, // backwards compatible
    headerTitle: config.header.title,
    githubUrl: config.header.githubUrl,
    helpUrl: config.header.helpUrl,
    tweetText: config.header.tweetText,
    headerLinks: config.header.links,
    siteUrl: config.gatsby.siteUrl,
  },
  plugins: [
    'gatsby-plugin-sitemap',
    'gatsby-plugin-sharp',
    {
      resolve: `gatsby-plugin-layout`,
      // options: {
      //   component: require.resolve(`./src/templates/docs.js`),
      // },
    },
    {
      resolve: 'gatsby-mdx',
      options: {
        gatsbyRemarkPlugins: [
          {
            resolve: 'gatsby-remark-images',
            options: {
              maxWidth: 1035,
              sizeByPixelDensity: true,
            },
          },
          {
            resolve: 'gatsby-remark-copy-linked-files',
          },
        ],
        extensions: ['.mdx', '.md'],
      },
    },
    'gatsby-plugin-emotion',
    'gatsby-plugin-remove-trailing-slashes',
    'gatsby-plugin-react-helmet',
    {
      resolve: 'gatsby-source-filesystem',
      options: {
        name: 'lessons',
        path: `${__dirname}/lessons/`,
      },
    },
    {
      resolve: `gatsby-plugin-gtag`,
      options: {
        // your google analytics tracking id
        trackingId: config.gatsby.gaTrackingId,
        // Puts tracking script in the head instead of the body
        head: true,
        // enable ip anonymization
        anonymize: false,
      },
    },
  ],
};