text: const path=require('path')
  const { createFilePath } = require("gatsby-source-filesystem")
  
  exports.onCreateNode = ({ node, getNode, actions }) => {
    const { createNodeField } = actions
    if (node.internal.type === "MarkdownRemark") {
      const slug = createFilePath({ node, getNode, basePath: "pages" })
      createNodeField({
        node,
        name: "slug",
        value: slug,
      })
    }
  }
  
  exports.createPages = async ({ graphql, actions }) => {
      const {createPage}=actions
      const result = await graphql(`
      query {
        allMarkdownRemark {
          edges {
            node {
              fields {
                slug
              }
            }
          }
        }
      }
    `)
   result.data.allMarkdownRemark.edges.forEach(({node})=>{
       createPage({
           path:node.fields.slug,
           component:path.resolve(`./src/templates/blog-post.js`),
           context:{
               slug:node.fields.slug,
           }
       })
   })
  }
  