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gatsby-node.js
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gatsby-node.js
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const path = require(`path`)
const { createFilePath } = require(`gatsby-source-filesystem`)
exports.createPages = async ({ graphql, actions, reporter }) => {
const { createPage } = actions
// Get all markdown blog posts sorted by date
const result = await graphql(
`
{
allMarkdownRemark(
sort: { fields: [frontmatter___date], order: ASC }
limit: 1000
) {
nodes {
id
fields {
slug
}
}
}
}
`
)
if (result.errors) {
reporter.panicOnBuild(
`There was an error loading your blog posts`,
result.errors
)
return
}
}
exports.onCreatePage = async ({ page, actions }) => {
const { createPage } = actions
// page.matchPath is a special key that's used for matching pages
// only on the client.
if (page.path.match(/^\/rocket\/EditRocket/)) {
page.matchPath = "/rocket/EditRocket/*"
// Update the page.
createPage(page)
}
}
exports.onCreateNode = ({ node, actions, getNode }) => {
const { createNodeField } = actions
if (node.internal.type === `MarkdownRemark`) {
const value = createFilePath({ node, getNode })
createNodeField({
name: `slug`,
node,
value,
})
}
}
exports.createSchemaCustomization = ({ actions }) => {
const { createTypes } = actions
// Explicitly define the siteMetadata {} object
// This way those will always be defined even if removed from gatsby-config.js
// Also explicitly define the Markdown frontmatter
// This way the "MarkdownRemark" queries will return `null` even when no
// blog posts are stored inside "content/blog" instead of returning an error
createTypes(`
type SiteSiteMetadata {
author: Author
siteUrl: String
social: Social
}
type Author {
name: String
summary: String
}
type Social {
twitter: String
}
type MarkdownRemark implements Node {
frontmatter: Frontmatter
fields: Fields
}
type Frontmatter {
title: String
description: String
date: Date @dateformat
}
type Fields {
slug: String
}
`)
}