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 = async ({ actions, graphql, reporter }) => {
  const { createPage } = actions
  //get all non blog pages
  const markdownTemplate = path.resolve(`src/components/markdownTemplate.js`)
  const result = await graphql(`
    {
      allMarkdownRemark(
        filter: { fileAbsolutePath: { glob: "!./**/blog/**/*.md" } }
      ) {
        edges {
          node {
            frontmatter {
              path
            }
          }
        }
      }
    }
  `)
  // Handle errors
  if (result.errors) {
    reporter.panicOnBuild(`Error while running GraphQL query.`)
    return
  }
  result.data.allMarkdownRemark.edges.forEach(({ node }) => {
    createPage({
      path: node.frontmatter.path,
      component: markdownTemplate,
      context: {}, // additional data can be passed via context
    })
  })

  //get all blog pages
  const blogTemplate = path.resolve(`src/components/blogTemplate.js`)
  const blogResult = await graphql(`
    {
      allMarkdownRemark(
        filter: { fileAbsolutePath: { glob: "./**/blog/**/*.md" } }
      ) {
        edges {
          node {
            frontmatter {
              path
            }
          }
        }
      }
    }
  `)
  // Handle errors
  if (blogResult.errors) {
    reporter.panicOnBuild(`Error while running GraphQL query.`)
    return
  }
  blogResult.data.allMarkdownRemark.edges.forEach(({ node }) => {
    createPage({
      path: node.frontmatter.path,
      component: blogTemplate,
      context: {}, // additional data can be passed via context
    })
  })
}