gatsby-node.js

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

const path = require("path")
exports.createPages = ({ actions, graphql }) => {
  const { createPage } = actions
  const postTemplate = path.resolve("src/templates/projects-template.js")
  return graphql(`
    {
      allMarkdownRemark {
        edges {
          node {
            html
            id
            frontmatter {
              path 
              date 
              title 
              category 
              link
              code
            }
          }
        }
      }
    }
  `).then(res => {
    if (res.errors) {
      return Promise.reject(res.errors)
    }
    res.data.allMarkdownRemark.edges.forEach(({ node }) => {
      console.log(node.frontmatter.path)
      createPage({
        path: node.frontmatter.path,
        component: postTemplate,
      })
    })
  })
}
// You can delete this file if you're not using it