gatsby-node.js

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

// You can delete this file if you're not using it
const path = require('path')

exports.onCreateWebpackConfig = ({ actions }) => {
  actions.setWebpackConfig({
    resolve: {
      alias: {
        '@': path.resolve(__dirname, 'src'),
        styles: path.resolve(__dirname, 'src/styles'),
        static: path.resolve(__dirname, 'src/static'),
      },
    },
  })
}

exports.createPages = ({ actions, graphql }) => {
  const { createPage } = actions

  const markdownTemplate = path.resolve(`./src/markdown/markdown-template.tsx`)

  return graphql(`
    {
      allMarkdownRemark(sort: { order: DESC, fields: [frontmatter___date] }, limit: 1000) {
        edges {
          node {
            frontmatter {
              path
            }
          }
        }
      }
    }
  `).then((result) => {
    if (result.errors) {
      return Promise.reject(result.errors)
    }

    result.data.allMarkdownRemark.edges.forEach(({ node }) => {
      createPage({
        path: node.frontmatter.path,
        component: markdownTemplate,
        context: {},
      })
    })
  })
}