gatsby guess

npm install --save gatsby-plugin-guess-js

// Yarn
yarn add gatsby-plugin-guess-js

// In your gatsby-config.js
module.exports = {
  plugins: [
    {
      resolve: "gatsby-plugin-guess-js",
      options: {
        // Find the view id in the GA admin in a section labeled "views"
        GAViewID: `VIEW_ID`,
        // Add a JWT to get data from GA
        jwt: {
          client_email: `GOOGLE_SERVICE_ACCOUNT_EMAIL`,
          private_key: `GOOGLE_SERVICE_ACCOUNT_PRIVATE_KEY`,
        },
        minimumThreshold: 0.03,
        // The "period" for fetching analytic data.
        period: {
          startDate: new Date("2018-1-1"),
          endDate: new Date(),
        },
      },
    },
  ],
}