The <HTML> component serves as a top level wrapper for a react application, allowing you to avoid needing any kind of server side template, in favour of purely using reactDom.renderToString.

import * as React from 'react';
import { renderToString } from 'react-dom/server';

import HTML, {DOCTYPE} from '@shopify/react-html';
import MyApp from '../app';

export default (ctx, next) => {
  // we have to prepend DOCTYPE to serve valid HTML
  ctx.body = DOCTYPE + renderToString(
    <HTML>
      <MyApp />
    </HTML>
  );

  await next();
}

Due to limitations in react's implementation of HTML, you still need to prepend the <!DOCTYPE html> directive. To assist with this the module also exports a DOCTYPE constant.

The component will automatically propagate any usage of the react-helmet module in your app's content to manipulate the title or other top level HTML or HEAD attributes.

Interface

export interface Props {
  children?: React.ReactNode;
  styles?: Asset[];
  scripts?: Asset[];
  blockingScripts?: Asset[];
  headData?: {[id: string]: any};
  data?: {[id: string]: any};
}

interface Asset {
  path: string;
  integrity?: string;
}

interface Browser {
  userAgent: string;
  supported: boolean;
}

Basic props

Most simple applications will only need these basic properties.

children The children to be rendered inside the #app div.

styles Descriptors for any style tags you want to include in the HEAD of the document.

scripts Descriptors for any script tags you want to include in your document. All scripts passed to this property will be deferred by appending them to the end of the document. We encourage this as a default, although you may use blockingScripts for any scripts that must be included in the HEAD of the document.

blockingScripts Descriptors for any script tags you want to include in the HEAD of the document. These will block HTML parsing until they are evaluated, so use them carefully.

Serializers

These props are useful for more complex applications that want to synchronize redux, apollo, translation, or any other data across the network boundary. These props are stringified into the DOM using (@shopify/react-serialize)[https://github.com/Shopify/quilt/blob/master/packages/react-serialize/README.md].

headData Any serializable data that needs to be available from the DOM when the synchronousScripts are run.

data Any serializable data that needs to be available from the DOM when the deferredScripts are run.

Asset Components

This module also exports the asset components the <HTML /> component uses internally for it's script and style props.

import {Style, Script} from '@shopify/react-html';

Style

The <Style /> component lets you render <link> tags in your document dynamically as part of your react app.

<Style
  href="./some-style.css"
  integrity="some-integrity-hash"
  crossOrigin="anonymous"
/>

Script

The <Script /> component lets you render <script> tags in your document dynamically as part of your react app.

<Script
  src="./some-script.js"
  integrity="some-integrity-hash"
  crossOrigin="anonymous"
/>

FAQs

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Package last updated on 22 May 2018

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Install

@shopify/react-html

Installation

Usage

Interface

Basic props

Serializers

Asset Components

Style

Script

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