gatsby-remark-reading-time/gatsby-node.js

Adds an estimated reading time field to all remark nodes

"use strict";

const readingTime = require("reading-time");

exports.onCreateNode = ({ node, actions }) => {
  const { createNodeField } = actions;
  if (node.internal.type === `MarkdownRemark`) {
    createNodeField({
      node,
      name: `readingTime`,
      value: readingTime(node.rawMarkdownBody)
    });
  } else if (node.internal.type === `Mdx`) {
    createNodeField({
      node,
      name: `readingTime`,
      value: readingTime(node.rawBody)
    });
  }
};