Community Plugin

gatsby-remark-reading-time

Adds a medium-like reading time estimate to your Gatsby remark posts. Powered by reading-time.

This plugin supports both MD and MDX formats.

Installation

Install

yarn add gatsby-remark-reading-time

Markdown (MD)

Add to gatsby-transformer-remark plugins in gatsby-config.js

// gatsby-config.js
  ...
  plugins: [
    ...
    {
      resolve: `gatsby-transformer-remark`,
      options: {
        plugins: [
          `gatsby-remark-reading-time`,
          // ...
        ],
      },
    },
  ]

MDX

Add this plugin outside your gatsby-plugin-mdx config, i.e. this plugin should not live within either of remarkPlugins or gatsbyRemarkPlugins config options:

// gatsby-config.js
  ...
  plugins: [
    {
      resolve: `gatsby-plugin-mdx`,
      options: {
        gatsbyRemarkPlugins: [...],
        remarkPlugins: [...],
      },
    },
    'gatsby-remark-reading-time',
     ...
  ],

Usage

The reading time can be queried in the relevant markdown fields. An example of this is shown below for a single post:

Markdown (MD)

If you are using the gatsby-transformer-remark plugin then you can use:

export const query = graphql`
  query($slug: String!) {
    markdownRemark(fields: { slug: { eq: $slug } }) {
      htmlAst
      excerpt(pruneLength: 200)
      frontmatter {
        title
        date(formatString: "MMMM Do, YYYY")
      }
      fields {
        slug
        readingTime {
          text
        }
      }
    }
  }
`;

MDX

If you are using the gatsby-plugin-mdx plugin then you can use:

export const query = graphql`
  query($slug: String!) {
    mdx(fields: { slug: { eq: $slug } }) {
      body
      excerpt(pruneLength: 160)
      frontmatter {
        title
        date(formatString: "MMMM Do, YYYY")
      }
      fields {
        readingTime {
          text
        }
      }
    }
  }
`;

Fields

There are 4 available fields within readingTime:

text: ‘1 min read’,
minutes: 1,
time: 60000, (milliseconds)
words: 200

License

MIT