gatsby-config.js

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

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

const pathPrefix = config.pathPrefix === '/' ? '' : config.pathPrefix;

module.exports = {
  pathPrefix: config.pathPrefix,
  siteMetadata: {
    siteUrl: config.siteUrl + pathPrefix,
    title: config.siteTitle,
    twitterHandle: config.twitterHandle,
    description: config.siteDescription,
    canonicalUrl: config.siteUrl,
    image: config.siteLogo,
    author: {
      name: config.author,
      minibio: config.siteDescription,
    },
    organization: {
      name: config.organization,
      url: config.siteUrl,
      logo: config.siteLogo,
    },
    social: {
      twitter: config.twitterHandle,
      fbAppID: config.siteFBAppID,
    },
  },
  plugins: [
    `gatsby-plugin-image`,
    `gatsby-plugin-sharp`,
    `gatsby-transformer-sharp`,
    `gatsby-plugin-styled-components`,
    `gatsby-plugin-react-helmet`,
    `gatsby-plugin-gatsby-cloud`,
    `gatsby-plugin-netlify`,
    `gatsby-plugin-sitemap`,
    `gatsby-plugin-robots-txt`,
    {
      resolve: `gatsby-plugin-manifest`,
      options: {
        name: config.siteTitle,
        short_name: config.siteTitleShort,
        description: config.siteDescription,
        start_url: config.pathPrefix,
        background_color: config.backgroundColor,
        theme_color: config.themeColor,
        display: 'standalone',
        icon: 'static/logo.png',
        icons: [
          {
            src: '/android-chrome-192x192.png',
            sizes: '192x192',
            type: 'image/png',
          },
          {
            src: '/android-chrome-512x512.png',
            sizes: '512x512',
            type: 'image/png',
          },
        ],
      },
    },
    `gatsby-plugin-offline`,
    {
      resolve: `gatsby-plugin-google-gtag`,
      options: {
        trackingIds: [config.googleAnalyticsID],
        pluginConfig: {
          head: true,
        },
      },
    },
  ],
};