html2canvas/www/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 {createFilePath} = require(`gatsby-source-filesystem`);
const path = require('path');

exports.onCreateNode = ({node, getNode, boundActionCreators}) => {
    const {createNodeField} = boundActionCreators;
    if (node.internal.type === `MarkdownRemark`) {
        const slug = createFilePath({node, getNode});
        createNodeField({
            node,
            name: `slug`,
            value: slug
        });
    }
};

exports.createPages = ({graphql, boundActionCreators}) => {
    const {createPage} = boundActionCreators;
    return new Promise((resolve, reject) => {
        graphql(`
      {
        allMarkdownRemark {
          edges {
            node {
              fields {
                slug
              }
            }
          }
        }
      }
    `).then(result => {
            result.data.allMarkdownRemark.edges.map(({node}) => {
                createPage({
                    path: node.fields.slug,
                    component: path.resolve(__dirname, `./src/templates/docs.js`),
                    context: {
                        // Data passed to context is available in page queries as GraphQL variables.
                        slug: node.fields.slug
                    }
                });
            });
            resolve();
        });
    });
};