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gatsby-node.js
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gatsby-node.js
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/**
* Implement Gatsby's Node APIs in this file.
*
* See: https://www.gatsbyjs.org/docs/node-apis/
*/
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 = ({ graphql, actions }) => {
// **Note:** The graphql function call returns a Promise
// see: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise for more info
const { createPage } = actions;
return graphql(
`
{
allMarkdownRemark {
edges {
node {
fields {
slug
}
}
}
}
}
`
).then(result => {
result.data.allMarkdownRemark.edges.forEach(({ node }) => {
createPage({
path: node.fields.slug,
component: path.resolve(`./src/templates/default.jsx`),
context: {
// Data passed to context is available
// in page queries as GraphQL variables.
slug: node.fields.slug,
},
});
});
});
};