Overview

• SSR (Server Side Rendering) as a view template engine
• Dynamic
  • props
    • Passing the server data to the React client props
    • Suitable for dynamic routes like blogging
  • Head component for better SEO
• Developer Experience
  • HMR (Hot Module Replacement) when process.env.NODE_ENV !== 'production'
  • Automatically reflect to the browser as soon as you save the scripts and even if styles

Usage

Install it:

# install NestJS dependencies
$ npm install --save @nestjs/core @nestjs/common @nestjs/platform-express

# install @react-ssr/nestjs-express
$ npm install --save @react-ssr/core @react-ssr/nestjs-express react react-dom

And add a script to your package.json like this:

{
  "scripts": {
    "start": "ts-node --project tsconfig.server.json server/main.ts"
  }
}

Then, populate files below inside your project:

.babelrc:

{
  "presets": [
    "@brendonjohn/react-ssr-nestjs-express/babel"
  ]
}

tsconfig.json:

{
  "compilerOptions": {
    "target": "esnext",
    "module": "esnext",
    "moduleResolution": "node",
    "jsx": "preserve",
    "lib": [
      "dom",
      "dom.iterable",
      "esnext"
    ],
    "strict": true,
    "allowJs": true,
    "skipLibCheck": true,
    "esModuleInterop": true
  },
  "exclude": [
    "node_modules",
    "ssr.config.js",
    ".ssr"
  ]
}

tsconfig.server.json:

{
  "extends": "./tsconfig.json",
  "compilerOptions": {
    "module": "commonjs"
  },
  "include": [
    "server"
  ]
}

server/main.ts:

import { NestFactory } from '@nestjs/core';
import { NestExpressApplication } from '@nestjs/platform-express';
import register from '@react-ssr/nestjs-express/register';
import { AppModule } from './app.module';

(async () => {
  const app = await NestFactory.create<NestExpressApplication>(AppModule);

  // register `.tsx` as a view template engine
  await register(app);

  app.listen(3000, async () => {
    console.log(`> Ready on http://localhost:3000`);
  });
})();

server/app.module.ts:

import { Module } from '@nestjs/common';
import { AppController } from './app.controller';

@Module({
  controllers: [
    AppController,
  ],
})
export class AppModule {}

server/app.controller.ts:

import {
  Controller,
  Get,
  Render,
} from '@nestjs/common';

@Controller()
export class AppController {
  @Get()
  @Render('index') // this will render `views/index.tsx`
  public showHome() {
    const user = { name: 'NestJS' };
    return { user };
  }
}

views/index.tsx:

interface IndexProps {
  user: any;
}

const Index = ({ user }: IndexProps) => {
  return <p>Hello {user.name}!</p>;
};

export default Index;

Finally, just run npm start and go to http://localhost:3000, and you'll see Hello NestJS!.

Configuration (ssr.config.js)

Here is the default ssr.config.js, which is used by react-ssr when there are no valid values:

module.exports = {
  id: 'default',
  distDir: '.ssr',
  viewsDir: 'views',
  staticViews: [],
  webpack: (config /* webpack.Configuration */, env /* 'development' | 'production' */) => {
    return config;
  },
};

ssr.config.js#id

The id of UI framework. (default: default)

It can be ignored only when the project does not use any UI frameworks.

Supported UI frameworks are:

• [x] default (the id default doesn't need to be specified in ssr.config.js)
  • [x] bulma
  • [x] semantic-ui
  • [x] Or any other non CSS-in-JS UI frameworks
• [x] emotion
• [x] styled-components
• [x] material-ui
• [x] antd
• [ ] and more...

For example, if we want to use emotion, ssr.config.js is like this:

module.exports = {
  id: 'emotion',
};

ssr.config.js#distDir

The place where react-ssr generates production results. (default: .ssr)

If we use TypeScript or any other library which must be compiled, the config below may be useful:

module.exports = {
  // dist folder should be ignored by `.gitignore`
  distDir: 'dist/.ssr',
};

ssr.config.js#viewsDir

The place where we put views. (default: views)

A function res.render('xxx') will render views/xxx.jsx or views/xxx.tsx.

A working example is here: examples/basic-custom-views

ssr.config.js#staticViews

If specified, react-ssr generates html cache when production:

module.exports = {
  staticViews: [
    'auth/login',
    'auth/register',
    'about',
  ],
};

ssr.config.js#webpack()

module.exports = {
  webpack: (config /* webpack.Configuration */, env /* 'development' | 'production' */) => {
    // we can override default webpack config here
    return config;
  },
};

Custom Document

Just put _document.tsx into the views root:

views/_document.tsx:

import React from 'react';
import {
  Document,
  Head,
  Main,
} from '@react-ssr/nestjs-express';

export default class extends Document {
  render() {
    return (
      <html lang="en">
        <Head>
          <title>Default Title</title>
          <meta charSet="utf-8" />
          <meta name="viewport" content="minimum-scale=1, initial-scale=1, width=device-width" />
          <link rel="shortcut icon" href="/favicon.ico" />
        </Head>
        <body>
          <Main />
        </body>
      </html>
    );
  }
};

Note:

• Please put <Main /> component directly under <body> tag and don't wrap <Main /> component with another components, because this is a hydration target for the client.

And then, use it as always:

views/index.tsx:

const Index = (props) => {
  return <p>Hello World!</p>;
};

export default Index;

A working example is here: examples/basic-custom-document

Dynamic Head

We can use the Head component in any pages:

views/index.tsx:

import React from 'react';
import { Head } from '@react-ssr/nestjs-express';

const Index = (props) => {
  return (
    <React.Fragment>
      <Head>
        <title>Dynamic Title</title>
        <meta name="description" content="Dynamic Description" />
      </Head>
      <p>Of course, SSR Ready!</p>
    </React.Fragment>
  );
};

export default Index;

A working example is here: examples/basic-dynamic-head

Supported UI Framework

• [x] default (the id default doesn't need to be specified in ssr.config.js)
  • [x] bulma
  • [x] semantic-ui
  • [x] Or any other non CSS-in-JS UI frameworks
• [x] emotion
• [x] styled-components
• [x] material-ui
• [x] antd
• [ ] and more...

Non CSS-in-JS framework

Like semantic-ui, non CSS-in-JS frameworks are supported without extra configuration.

All we have to do is to load global CSS in _document or each page:

views/_document.tsx:

import React from 'react';
import {
  Document,
  Head,
  Main,
} from '@react-ssr/express';

export default class extends Document {
  render() {
    return (
      <html>
        <Head>
          <title>A Sample of Semantic UI React</title>
          <link rel="stylesheet" href="//cdn.jsdelivr.net/npm/[email protected]/dist/semantic.min.css" />
        </Head>
        <body>
          <Main />
        </body>
      </html>
    );
  }
}

With Ant Design

In order to enable SSR, we must install babel-plugin-import as devDependencies.

And then, populate .babelrc in your project root:

{
  "presets": [
    "@brendonjohn/react-ssr-express/babel"
  ],
  "plugins": [
    [
      "import",
      {
        "libraryName": "antd",
        "style": "css"
      }
    ]
  ]
}

A working example is here: examples/with-jsx-antd

With Emotion

In order to enable SSR, we must install these packages:

• @emotion/cache as dependencies
• create-emotion-server as dependencies
• babel-plugin-emotion as devDependencies

And then, populate .babelrc in your project root:

{
  "presets": [
    "@brendonjohn/react-ssr-express/babel"
  ],
  "plugins": [
    "emotion"
  ]
}

A working example is here: examples/with-jsx-emotion

With Material UI

We can use material-ui without extra configuration.

A working example is here: examples/with-jsx-material-ui

With styled-components

In order to enable SSR, we must install babel-plugin-styled-components as devDependencies.

And then, populate .babelrc in your project root:

{
  "presets": [
    "@brendonjohn/react-ssr-express/babel"
  ],
  "plugins": [
    "styled-components"
  ]
}

A working example is here: examples/with-jsx-styled-components

Examples

• @react-ssr/express
  • .jsx
    • examples/basic-jsx
    • examples/basic-custom-views
    • examples/basic-custom-document
    • examples/basic-dynamic-head
    • examples/basic-hmr-css
    • examples/basic-hmr-scss
    • examples/basic-blogging
    • examples/with-jsx-antd
    • examples/with-jsx-bulma
    • examples/with-jsx-emotion
    • examples/with-jsx-material-ui
    • examples/with-jsx-semantic-ui
    • examples/with-jsx-styled-components
  • .tsx
    • examples/basic-tsx
• @react-ssr/nestjs-express
  • examples/basic-nestjs
  • examples/basic-nestjs-nodemon
• @react-ssr/static
  • .jsx
    • examples/basic-jsx-static
    • examples/with-jsx-static-bulma
  • .tsx
    • examples/basic-tsx-static

Starters

• react-ssr-jsx-starter
• react-ssr-tsx-starter
• react-ssr-nestjs-starter

Articles

Introducing an Alternative to NEXT.js

[Express] React as a View Template Engine?

Related

reactjs/express-react-views