/
gatsby-node.js
130 lines (120 loc) · 3.62 KB
/
gatsby-node.js
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const { createFieldUtil } = require('./bootstrap/filed-util')
const { createPageUtil } = require('./bootstrap/page-util')
const redirects = require('./bootstrap/redirects')
// Does nothing but for hinting syntax highlight of inline GraphQL query
const graphql = lit => lit[0]
// Create redirections
exports.onPostBootstrap = ({
actions: { createRedirect },
}) => {
redirects.forEach(redirect => createRedirect(redirect))
}
// Create custom fields on nodes
// - Slug (equals with path of URL)
// - Series (Split the slug by `/`, then equals with the first part if it have a couple, otherwise null)
exports.onCreateNode = ({
actions: { createNodeField },
...context
}) => {
const util = createFieldUtil(context)
if (context.node.internal.type === 'MarkdownRemark') {
const prefix = '/posts'
const slug = util.buildSlug()
console.log(`\n- Gen Slug: ${prefix}${slug}`)
createNodeField({
node: context.node,
name: 'slug',
value: prefix + slug,
})
const series = util.buildSeries(slug)
console.log(`-> Series ${series}`)
createNodeField({
node: context.node,
name: 'series',
value: series,
})
}
}
// Create contentful pages
// - Post pages (`/posts/{slug}`)
// - Series pages (`/series/{series}`)
// - Tag pages (`/tag/{tag}`)
exports.createPages = async (context) => {
const util = createPageUtil(context)
const postPageCreator = util.createPageCreator({
query: graphql`{
posts: allMarkdownRemark {
edges {
node {
fields {
slug
}
}
}
}
}`,
mapDataToProps: data => (
data.posts.edges
.map(edge => edge.node)
.map(node => node.fields.slug)
.map(slug => ({
path: slug,
component: `${__dirname}/src/templates/post.tsx`,
context: { slug },
}))
),
})
const seriesPageCreator = util.createPageCreator({
query: graphql`{
posts: allMarkdownRemark(
filter: {
fields: {
series: { ne: null }
}
}
) {
groups: group(field: fields___series){
series: fieldValue
}
}
}`,
mapDataToProps: data => (
data.posts.groups
.map(group => group.series)
.map(series => ({
path: `/series/${series}`,
component: `${__dirname}/src/templates/series.tsx`,
context: { series },
})
)),
})
const tagPageCreator = util.createPageCreator({
query: graphql`{
posts: allMarkdownRemark(
filter: {
frontmatter: {
tags: { ne: null }
}
}
) {
groups: group(field: frontmatter___tags) {
tag: fieldValue
}
}
}`,
mapDataToProps: data => (
data.posts.groups
.map(group => group.tag)
.map(tag => ({
path: `/tags/${tag}`,
component: `${__dirname}/src/templates/tag.tsx`,
context: { tag },
}))
),
})
await Promise.all([
postPageCreator(),
seriesPageCreator(),
tagPageCreator(),
])
}