gatsby-config.js

const proxy = require('http-proxy-middleware')
const config = require('./src/utils/siteConfig')
require('dotenv').config()

module.exports = {
  siteMetadata: {
    title: config.siteTitle,
    description: config.siteDescription,
    siteUrl: config.siteUrl,
    author: config.userTwitter,
    lang: config.lang,
  },
  // for avoiding CORS while developing Netlify Functions locally
  // read more: https://www.gatsbyjs.org/docs/api-proxy/#advanced-proxying
  developMiddleware: app => {
    app.use(
      '/.netlify/functions/',
      proxy({
        target: 'http://localhost:9000',
        pathRewrite: {
          '/.netlify/functions/': '',
        },
      })
    )
  },
  plugins: [
    `gatsby-plugin-react-helmet`,
    {
      resolve: `gatsby-source-filesystem`,
      options: {
        name: `images`,
        path: `${__dirname}/src/images`,
      },
    },
    `gatsby-transformer-sharp`,
    `gatsby-plugin-sharp`,
    {
      resolve: `gatsby-plugin-create-client-paths`,
      options: { prefixes: [`/elmeujoc/*`] },
    },
    {
      resolve: `gatsby-plugin-gtag-outbound`,
      options: {
        // your google analytics tracking id
        trackingId: `UA-121776060-5`,
        // Puts tracking script in the head instead of the body
        head: false,
        // enable ip anonymization
        anonymize: true,
      },
    },
    {
      resolve: `gatsby-plugin-manifest`,
      options: {
        name: config.siteTitle,
        short_name: config.siteTitle,
        start_url: config.siteUrl,
        background_color: config.backgroundColor,
        theme_color: config.themeColor,
        gcm_sender_id: '103953800507',
        display: 'standalone',
        icon: `src/images/icon.png`,
        legacy: true,
        lang: config.lang,
        orientation: 'portrait',
      },
    },
    // this (optional) plugin enables Progressive Web App + Offline functionality
    // To learn more, visit: https://gatsby.app/offline
    'gatsby-plugin-offline',
    // 'gatsby-plugin-remove-serviceworker',
    'gatsby-plugin-netlify',
  ],
}