gatsby-config.js

module.exports = {
  siteMetadata: {
    title: `a-to-z`,
    siteUrl: `https://www.yourdomain.tld`,
  },
  plugins: [
    /**
     * We need this plugin so that it adds the "File.publicURL" to our site
     * It will allow us to access static url's for assets like PDF's
     *
     * See https://www.gatsbyjs.org/packages/gatsby-source-filesystem/ for more info
     */
     {
      resolve: `gatsby-source-filesystem`,
      options: {
        name: `src`,
        path: `${__dirname}/src/`,
      },
    },
    /**
     * The following two plugins are required if you want to use Gatsby image
     * See https://www.gatsbyjs.com/docs/gatsby-image/#setting-up-gatsby-image
     * if you're curious about it.
     */
     `gatsby-transformer-sharp`,
     {
       resolve: `gatsby-plugin-sharp`,
       options: {
         defaults: {
           placeholder: `none`,
           backgroundColor: `transparent`,
         },
       },
     },
     `gatsby-plugin-image`,
     {
      // See https://www.gatsbyjs.com/plugins/gatsby-plugin-manifest/?=gatsby-plugin-manifest
      resolve: `gatsby-plugin-manifest`,
      options: {
        name: `tio | Make your business tio-powered`,
        short_name: `tio.ist`,
        start_url: `/`,
        background_color: `#ffffff`,
        theme_color: `#663399`,
        display: `minimal-ui`,
        icon: `src/images/icon.png`,
      },
    },
    `gatsby-plugin-postcss`,
    `gatsby-plugin-react-helmet`,
    `gatsby-transformer-remark`,
    {
      resolve: `gatsby-plugin-google-analytics`,
      options: {
        // The property ID; the tracking code won't be generated without it
        trackingId: "UA-127688828-1",
        // Defines where to place the tracking script - `true` in the head and `false` in the body
        head: false,
        // Setting this parameter is optional
        anonymize: true,
        // Setting this parameter is also optional
        respectDNT: true,
        // Delays sending pageview hits on route update (in milliseconds)
        pageTransitionDelay: 0,
        // Defers execution of google analytics script after page load
        defer: false,
        // defaults to false
        enableWebVitalsTracking: true,
      },
    },
    {
      resolve: `gatsby-plugin-facebook-pixel`,
      options: {
        pixelId: "221938399918609",
      },
    },
    {
      resolve: "gatsby-plugin-sitemap",
      options: {
        query: `
        {
          allSitePage {
            nodes {
              path
            }
          }         
        }
      `,
        resolveSiteUrl: () => "https://tio.ist",
        resolvePages: ({
          allSitePage: { nodes: allPages }         
        }) => {
          return allPages.map(page => {
            return { ...page }
          })
        },
        serialize: ({ path, modifiedGmt }) => {
          return {
            url: path,
            lastmod: modifiedGmt,
          }
        },
      },
    },
  ],
}