gatsby-config.js

const config = require("./data/siteConfig");

module.exports = {
  siteMetadata: {
    title: config.siteTitle,
    description: config.siteDescription,
    author: config.authorName,
    ...config
  },
  pathPrefix: config.pathPrefix,
  plugins: [
    `gatsby-plugin-react-helmet`,
    `gatsby-transformer-sharp`,
    `gatsby-plugin-sharp`,
    {
      resolve: `gatsby-plugin-manifest`,
      options: {
        name: config.siteTitle,
        short_name: config.siteTitle,
        start_url: config.pathPrefix,
        background_color: config.background_color,
        theme_color: config.theme_color,
        display: config.display,
        icon: config.icon,
      },
    },
    `gatsby-plugin-styled-components`,
    {
      resolve: `gatsby-plugin-google-gtag`,
      options: {
        // You can add multiple tracking ids and a pageview event will be fired for all of them.
        trackingIds: [
          config.googleAnalyticsId // Google Analytics / GA
        ],
      },
    },
    // this (optional) plugin enables Progressive Web App + Offline functionality
    // To learn more, visit: https://gatsby.app/offline
    // 'gatsby-plugin-offline',
  ],
}