gatsby-node.js

/**
 * Implement Gatsby's Node APIs in this file.
 *
 * See: https://www.gatsbyjs.org/docs/node-apis/
 */

// You can delete this file if you're not using it
exports.onCreateWebpackConfig = ({ stage, actions, getConfig }) => {
  if (stage === "build-html") {
    actions.setWebpackConfig({
      // Don't bundle modules that reference browser globals such as `window` and `IDBIndex` during SSR.
      // See: https://github.com/gatsbyjs/gatsby/issues/17725
      externals: getConfig().externals.concat(function(
        _context,
        request,
        callback
      ) {
        // Exclude bundling firebase* and react-firebase*
        // These are instead required at runtime.
        if (/^@?(react-)?firebase(.*)/.test(request)) {
          console.log("Excluding bundling of: " + request)
          return callback(null, "umd " + request)
        }
        callback()
      }),
    })
  }
}

exports.createPages = ({ graphql, actions }) => {
  const { createRedirect } = actions //actions is collection of many actions - https://www.gatsbyjs.org/docs/actions
  createRedirect({
    fromPath: "/discord",
    toPath: "https://discord.gg/GnVhHMVXdH",
    isPermanent: true,
  })
}