Untitled-1.jsx

exports.createPages = ({ boundActionCreators, graphql }) => {
  const { createPage } = boundActionCreators
  const blogPostTemplate = path.resolve(`src/templates/blog-post.js`)

  return graphql(`
    {
      allMarkdownRemark {
        edges {
          node {
            html
            id
            frontmatter {
              title
              date(formatString: "MMMM DD YYYY")
              path
              tags
              excerpt
              published
            }
          }
        }
      }
    }
  `).then(result => {
    if (result.errors) {
      return Promise.reject(result.errors)
    }

    const allPosts = result.data.allMarkdownRemark.edges

    const allowedPosts = allPosts.filter(
      post =>
        process.env.NODE_ENV === 'development' ||
        post.node.frontmatter.published
    )

    allowedPosts.forEach(({ node }) => {
      createPage({
        path: node.frontmatter.path,
        component: blogPostTemplate,
      })
    })
  })
}