Backroads/gatsby-node.js at master · K-Kumar-01/Backroads · GitHub

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const path = require("path")

exports.createPages = async ({ actions, graphql }) => {
  const { createPage } = actions
  const { data } = await graphql(`
    query {
      tours: allContentfulTour {
        edges {
          node {
            slug
          }
        }
      }
      posts: allContentfulPost {
        edges {
          node {
            slug
          }
        }
      }
    }
  `)
  data.tours.edges.forEach(({ node }) => {
    createPage({
      path: `/tours/${node.slug}`,
      component: path.resolve("./src/templates/tour-template.js"),
      context: {
        slug: node.slug,
      },
    })
  })
  data.posts.edges.forEach(({ node }) => {
    createPage({
      path: `/blog/${node.slug}`,
      component: path.resolve("./src/templates/blog-template.js"),
      context: {
        slug: node.slug,
      },
    })
  })
  // amount of posts
  const posts = data.posts.edges
  // posts per page
  const postPerPage = 5
  // amount of pages
  const numPages = Math.ceil(posts.length / postPerPage)

  Array.from({ length: numPages }).forEach((_, index) => {
    createPage({
      path: index === 0 ? `/blogs/` : `/blogs/${index + 1}`,
      component: path.resolve("./src/templates/blog-list-template.js"),
      context: {
        limit: postPerPage,
        skip: index * postPerPage,
        numPages,
        currentPage: index + 1,
      },
    })
  })
}