/
gatsby-node.js
83 lines (75 loc) · 1.89 KB
/
gatsby-node.js
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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(
filter: { fileAbsolutePath: { regex: "/content/blog/" } }
) {
edges {
node {
fields {
slug
}
frontmatter {
title
}
}
}
}
}
`)
const posts = result.data.allMarkdownRemark.edges
posts.forEach(({ node }, index) => {
let previousPost = null
if (index < posts.length - 1) {
const postIndex = index + 1
const previousNode = posts[postIndex].node
previousPost = {
title: previousNode.frontmatter.title,
slug: previousNode.fields.slug,
}
}
let nextPost = null
if (index > 0) {
const postIndex = index - 1
const nextNode = posts[postIndex].node
nextPost = {
title: nextNode.frontmatter.title,
slug: nextNode.fields.slug,
}
}
createPage({
path: `/blog${node.fields.slug}`,
component: path.resolve(`./src/templates/blog-post.js`),
context: {
// Data passed to context is available
// in page queries as GraphQL variables.
slug: node.fields.slug,
previousPost,
nextPost,
},
})
})
}
exports.onCreateWebpackConfig = ({ actions }) => {
actions.setWebpackConfig({
resolve: {
fallback: {
path: require.resolve("path-browserify"),
},
},
})
}