gatsby-node.js

/**
 * Implement Gatsby's Node APIs in this file.
 *
 * See: https://www.gatsbyjs.org/docs/node-apis/
 */

// You can delete this file if you're not using it
const path = require("path");

exports.createPages = async ({ actions, graphql, reporter }) => {
    const { createPage } = actions;
    const docTemplate = path.resolve(`src/templates/doc.js`);
    const result = await graphql(`
        {
            allMarkdownRemark(limit: 1000) {
                edges {
                    node {
                        frontmatter {
                            path
                        }
                    }
                }
            }
        }
    `);

    if (result.errors) {
        reporter.panicOnBuild(`Error running GraphQL Query.`);
        return;
    }

    result.data.allMarkdownRemark.edges.forEach(({ node }) => {
        createPage({
            path: node.frontmatter.path,
            component: docTemplate,
            context: {},
        });
    });
};