gatsby-config.js

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

module.exports = {
  siteMetadata: {
    title: config.siteTitle,
    author: config.authorName,
    description: config.siteDescription,
    ...config,
  },
  pathPrefix: config.pathPrefix,
  plugins: [
    {
      resolve: `gatsby-source-filesystem`,
      options: {
        path: `${__dirname}/content/posts`,
        name: 'pages',
      },
    },
    {
      resolve: `gatsby-source-filesystem`,
      options: {
        path: `${__dirname}/content/pages`,
        name: 'pages',
      },
    },
    {
      resolve: `gatsby-source-filesystem`,
      options: {
        path: `${__dirname}/content/authors`,
        name: 'pages',
      },
    },
    {
      resolve: `gatsby-transformer-remark`,
      options: {
        plugins: [
          {
            resolve: `gatsby-remark-images`,
            options: {
              maxWidth: 590,
              linkImagesToOriginal: false,
              withWebp: true,
            },
          },
          {
            resolve: `gatsby-remark-responsive-iframe`,
            options: {
              wrapperStyle: `margin-bottom: 1.0725rem`,
            },
          },
          'gatsby-remark-prismjs',
          'gatsby-remark-copy-linked-files',
          'gatsby-remark-smartypants',
          'gatsby-remark-autolink-headers',
          `gatsby-remark-emoji`,
          'gatsby-remark-numbered-footnotes',
        ],
      },
    },
    `gatsby-transformer-sharp`,
    `gatsby-plugin-sharp`,
    {
      resolve: `gatsby-plugin-google-analytics`,
      options: {
        trackingId: config.googleAnalyticsId,
      },
    },
    `gatsby-plugin-offline`,
    `gatsby-plugin-styled-components`,
    `gatsby-plugin-react-helmet`,
    {
      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,
      }
    },

    {
     resolve: `gatsby-plugin-feed`,
      options: {
        query: `
          {
            site {
              siteMetadata {
                title
                description
                siteUrl
                site_url: siteUrl
              }
            }
          }
        `,
        feeds: [
          {
            serialize: ({ query: { site, allMarkdownRemark } }) => {
              return allMarkdownRemark.nodes.map(node => {
                return Object.assign({}, node.frontmatter, {
                  description: node.excerpt,
                  date: node.frontmatter.date,
                  url: site.siteMetadata.siteUrl + node.fields.slug,
                  guid: site.siteMetadata.siteUrl + node.fields.slug,
                  custom_elements: [{ "content:encoded": node.html }],
                })
              })
            },
            query: `
              {
                allMarkdownRemark(
                  sort: { order: DESC, fields: [frontmatter___date] },
                ) {
                  nodes {
                    excerpt
                    html
                    fields { 
                      slug 
                    }
                    frontmatter {
                      title
                      date
                    }
                  }
                }
              }
            `,
            output: "/rss.xml",
            title: "Your Site's RSS Feed",
            // optional configuration to insert feed reference in pages:
            // if `string` is used, it will be used to create RegExp and then test if pathname of
            // current page satisfied this regular expression;
            // if not provided or `undefined`, all pages will have feed reference inserted
            match: "^/blog/",
          },
        ],
      },
    },
  ],
}