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gatsby-theme-apollo-core

This is the base theme for building Apollo-branded Gatsby sites. It contains a small amount of configuration, and a handful of components that make it easy to build consistent-looking UIs.

It comes with a few Gatsby plugins:

Installation

$ npm install gatsby gatsby-theme-apollo-core

Configuration

// gatsby-config.js
module.exports = {
  plugins: ['gatsby-theme-apollo-core'],
  siteMetadata: {
    title: 'Apollo rocks!',
    description: 'Gatsby themes are pretty cool too...'
  }
};

Components and utilities

All of the React components and utilities documented here are available as named exports in the gatsby-theme-apollo-core package. You can import them like this:

import {MenuButton, Sidebar, breakpoints} from 'gatsby-theme-apollo-core';

Layout

Layout should wrap every page that gets created. It configures React Helmet and sets the meta description tag with data from the siteMetadata property in your Gatsby config.

import {Layout} from 'gatsby-theme-apollo-core';

function MyPage() {
  return (
    <Layout>
      Hello world
    </Layout>
  );
}
Prop name Type Required
children node yes

Sidebar

A component that renders a sidebar with a LogoTitle component in the top left corner. It can also be configured to collapse into the left side of the page on narrow windows.

import {Layout, Sidebar} from 'gatbsy-theme-apollo';

function MyPage() {
  return (
    <Layout>
      <Sidebar>
        Sidebar content goes here
      </Sidebar>
    </Layout>
  );
}
Prop name Type Required Description
children node yes
responsive bool no If true, the sidebar will behave as a drawer absolutely positioned on the left
open bool no Controls the sidebar visibility when the responsive prop is true
logoLink string no The URL/path that the sidebar logo should link to

SidebarNav

A configurable two-tiered, expandable/collapsible navigation component for use in conjunction with the Sidebar component above. It accepts a contents prop that defines what links and collapsible sections get rendered. Here's an example of the expected shape of a contents prop:

const contents = [
  {
    title: 'Getting started',
    path: '/'
  },
  {
    title: 'External link',
    path: 'https://apollographql.com',
    anchor: true
  },
  {
    title: 'Advanced features',
    pages: [
      {
        title: 'Schema stitching',
        path: '/advanced/schema-stitching'
      }
    ]
  }
];

Each element in the array can have title, path, pages, and anchor props. pages is an array of more elements with the same shape. By default, a Gatsby Link component will be used to render the links, but you can use a regular HTML anchor tag (<a>) by passing the anchor property to true on any page object.

The SidebarNav component gives the currently selected page an "active" style, and if it's a subpage, it will keep the currently active section expanded. To facilitate this, you must pass the current path to the pathname prop. Luckily, Gatsby exposes this in the location prop that gets passed automatically to every page!

import {Layout, Sidebar, SidebarNav} from 'gatsby-theme-apollo-core';

function MyPage(props) {
  return (
    <Layout>
      <Sidebar>
        <SidebarNav
          contents={contents}
          pathname={props.location.pathname}
        />
      </Sidebar>
    </Layout>
  );
}
Prop name Type Required Description
contents array yes An array of items to render
pathname string yes The current path (props.location.pathname expected)
alwaysExpanded bool no If true, all collapsible sections are expanded and cannot close

ResponsiveSidebar

A render props component that manages the state for responsive sidebars. On mobile devices, the sidebar is opened by a MenuButton component, and dismissed when the user clicks away from the sidebar. This component's children prop accepts a function that provides values and functions to enable this behavior easily.

import {
  Layout,
  Sidebar,
  ResponsiveSidebar,
  FlexWrapper,
  MenuButton
} from 'gatsby-theme-apollo-core';

function MyPage() {
  return (
    <Layout>
      <ResponsiveSidebar>
        {({sidebarOpen, openSidebar, onWrapperClick, sidebarRef}) => (
          <FlexWrapper onClick={onWrapperClick}>
            <Sidebar responsive open={sidebarOpen} ref={sidebarRef}>
              This is a sidebar
            </Sidebar>
            <MenuButton onClick={openSidebar} />
          </FlexWrapper>
        )}
      </ResponsiveSidebar>
    </Layout>
  );
}
Prop name Type Required Description
children func yes A render prop-style function that returns a React component

Logo

A component that renders the Apollo logo. This logo can be removed or replaced using component shadowing.

import {Logo} from 'gatsby-theme-apollo-core';

function MyPage() {
  return <Logo />;
}

Customizing the logo

Through component shadowing, you can override the logo that gets shown. Simply create a file that exports a SVG React component in your theme consumer at src/gatsby-theme-apollo-core/components/logo.js.

// src/gatsby-theme-apollo-core/components/logo.js
export {ReactComponent as default} from '../../assets/custom-logo.svg';

Check out this CodeSandbox link for a full component shadowing example.

Edit Component shadowing example

Prop name Type Required Description
noLogo bool no If true, the Apollo logo is hidden

Colors

An object mapping semantic names to hex strings. All of these colors are drawn from Space Kit. You can use this utility to write CSS-in-JS rules like this:

import {colors} from 'gatsby-theme-apollo-core';

const StyledButton = styled.button({
  color: colors.primary,
  background: colors.background
});

Customizing colors

You can override the default color palette using shadowing. The only constraint is that the primary and secondary palette keys must be colors from Space Kit. Here's an example of a shadowed color palette:

// src/gatsby-theme-apollo-core/utils/colors.js
const {colors} = require('gatsby-theme-apollo-core/src/utils/colors');
const {colors: spaceKitColors} = require('@apollo/space-kit/colors');

exports.colors = {
  ...colors,
  primary: spaceKitColors.red.base,
  divider: '#aeaeae'
};

You can refer to the default colors file for palette keys that can be customized.

Breakpoints

A mapping of size keys to media queries. This is useful for writing responsive CSS-in-JS components.

import {breakpoints} from 'gatsby-theme-apollo-core';

const StyledMenu = styled.nav({
  fontSize: 24,
  [breakpoints.lg]: {
    fontSize: 20
  },
  [breakpoints.md]: {
    fontSize: 16
  },
  [breakpoints.sm]: {
    fontSize: 12
  }
})
Key Value
sm @media (max-width: 600px)
md @media (max-width: 850px)
lg @media (max-width: 1120px)

Deploying to a subdirectory

In order to deploy a Gatsby site to a subdirectory, there are a few extra steps to take. First, you must provide a pathPrefix property in your Gatsby config. This option combined with the --prefix-paths option in the Gatsby CLI will handle most of the hard work. Read more about path prefixing in Gatsby here.

// gatsby-config.js
module.exports = {
  ...
  pathPrefix: '/YOUR_PATH_PREFIX'
};

Now, when you run npx gatsby bulid --prefix-paths, all pages, references to static assets, and links between pages will be prefixed with your custom path. That means that if you made a page with the path /about, it will live at /YOUR_PATH_PREFIX/about. In order for this to work within our server configuration, your website files also must exist in a directory with the same name. Here's how this sequence of events would look if you ran commands in your terminal:

$ npx gatsby build --prefix-paths
$ mkdir -p YOUR_PATH_PREFIX
$ mv public/* YOUR_PATH_PREFIX
$ mv YOUR_PATH_PREFIX public/

We use Netlify to deploy our websites, so to express this slightly more complicated build process to them, create a netlify.toml file that follows this pattern:

# netlify.toml
[build]
  base = "/"
  publish = "public/"
  command = "gatsby build --prefix-paths && mkdir -p YOUR_PATH_PREFIX && mv public/* YOUR_PATH_PREFIX && mv YOUR_PATH_PREFIX public/"

We use Fly to manage our server rewrites and redirects. To point your new Netlify deployment to a page on apollographql.com, first create a new backend using your site's Netlify alias. Next, you'll need to add two rewrite rules:

  • /YOUR_PATH_PREFIX/:page ➡️ /YOUR_PATH_PREFIX/$page
  • /YOUR_PATH_PREFIX ➡️ /YOUR_PATH_PREFIX

Be sure to set the priority of each of these rules to 3, or a value lower than the top two redirect rules that apply to our website root. Once these rewrite rules take effect, your site will be live at https://apollographql.com/YOUR_PATH_PREFIX.

Examples

License

MIT