/
gatsby-node.js
64 lines (56 loc) · 1.42 KB
/
gatsby-node.js
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const path = require(`path`);
const { createFilePath } = require(`gatsby-source-filesystem`);
const queryArticles = `
{
allMarkdownRemark(
sort: { fields: [frontmatter___date], order: DESC }
limit: 1000
) {
edges {
node {
fields {
slug
}
frontmatter {
title
}
}
}
}
}
`;
exports.createPages = ({ graphql, actions }) => {
const { createPage } = actions;
const articleTemplate = path.resolve(`./src/templates/template.tsx`);
return graphql(queryArticles).then(result => {
if (result.errors) {
throw result.errors;
}
const articles = result.data.allMarkdownRemark.edges;
articles.forEach((article, i) => {
const previous = i === articles.length - 1 ? null : articles[i + 1].node;
const next = i === 0 ? null : articles[i - 1].node;
createPage({
path: article.node.fields.slug,
component: articleTemplate,
context: {
slug: article.node.fields.slug,
previous,
next
}
});
});
});
};
exports.onCreateNode = ({ node, actions, getNode }) => {
const { createNodeField } = actions;
if (node.internal.type === `MarkdownRemark`) {
const filePath = createFilePath({ node, getNode });
const value = path.join("/articles", filePath);
createNodeField({
name: `slug`,
node,
value
});
}
};