Production Challenges: Addressing Style Problems with Material UI and Next JS 13

Question

Production Challenges: Addressing Style Problems with Material UI and Next JS 13

Using MUI in DEV results in a custom design for my application
In Prod, the custom design is missing when using MUI

Do I need to implement something differently? Is there an extra configuration required?

An example of something not working:

       <Typography className={styles.customStyle} component="h1">
          {t("Translation")}
        </Typography>

The className={styles.customStyle} is being ignored completely in Prod, although it works fine in DEV.

Details of my current configuration

Node version: v19.0.0
Package.json details:

{
  "name": "my-app",
  "version": "0.1.0",
  "private": true,
  "scripts": {
    "dev": "next dev",
    "build": "next build",
    "start": "next start",
    "lint": "next lint"
  },
  "dependencies": {
    "@emotion/react": "^11.10.5",
    "@emotion/styled": "^11.10.5",
    "@mui/icons-material": "^5.11.0",
    // Additional dependencies listed here
  }
}

Additional configurations in next.config.js:

/** @type {import('next').NextConfig} */

const nextConfig = {
  reactStrictMode: true,
  experimental: {
    appDir: true,
  },
}

module.exports = nextConfig

javascript build material-ui next.js13

Answer 1

Answer №1

UPDATED:

After going through the content on this website: https://blog.logrocket.com/getting-started-with-mui-and-next-js/

I noticed that a crucial element was missing, which is the addition of <CacheProvider />. By adding this, the custom styling started working correctly.

RESOLUTION:

To solve this issue, begin by creating a new file named createEmotionCache.js in the utils directory.

import createCache from "@emotion/cache";

export default function createEmotionCache() {
 return createCache({ key: "css", prepend: true });
}

Next, navigate to either _app.js or page.js (if using LAYOUT RFC)

....
import { CacheProvider } from "@emotion/react";

const clientSideEmotionCache = createEmotionCache();

function MyApp({
 Component,
 emotionCache = clientSideEmotionCache,
 pageProps,
}) {
 return (
   <CacheProvider value={emotionCache}>
     <App />
   </CacheProvider>
 );
}

export default MyApp;

That's it for now.

Answer 2

UPDATED:

After going through the content on this website: https://blog.logrocket.com/getting-started-with-mui-and-next-js/

I noticed that a crucial element was missing, which is the addition of <CacheProvider />. By adding this, the custom styling started working correctly.

RESOLUTION:

To solve this issue, begin by creating a new file named createEmotionCache.js in the utils directory.

import createCache from "@emotion/cache";

export default function createEmotionCache() {
 return createCache({ key: "css", prepend: true });
}

Next, navigate to either _app.js or page.js (if using LAYOUT RFC)

....
import { CacheProvider } from "@emotion/react";

const clientSideEmotionCache = createEmotionCache();

function MyApp({
 Component,
 emotionCache = clientSideEmotionCache,
 pageProps,
}) {
 return (
   <CacheProvider value={emotionCache}>
     <App />
   </CacheProvider>
 );
}

export default MyApp;

That's it for now.

Answer 3

Answer №2

While your solution may appear to work, it lacks effectiveness in terms of performance optimization. Upon testing in Chrome for performance, it was observed to be slower than an alternative method by approximately 1 second due to the need for re-calling CSS.

The image below illustrates the FCP after 0.5 seconds: https://i.sstatic.net/slsYd.png

However, adopting your suggested solution would result in a delay of 1.5 seconds in my specific scenario (and generally slower in all cases). You are encouraged to utilize the StyledEngineProvider as outlined in the MUI documentation at https://mui.com/material-ui/guides/interoperability/#css-injection-order-3. This approach has proven effective in enhancing performance in my experience. Give it a try!

import * as React from 'react';
import { StyledEngineProvider } from '@mui/material/styles';

export default function App() {
  return (
    <StyledEngineProvider injectFirst>
      {/* Your component tree. Now you can override Material UI's styles. */}
    </StyledEngineProvider>
  );
}

Answer 4

While your solution may appear to work, it lacks effectiveness in terms of performance optimization. Upon testing in Chrome for performance, it was observed to be slower than an alternative method by approximately 1 second due to the need for re-calling CSS.

The image below illustrates the FCP after 0.5 seconds: https://i.sstatic.net/slsYd.png

However, adopting your suggested solution would result in a delay of 1.5 seconds in my specific scenario (and generally slower in all cases). You are encouraged to utilize the StyledEngineProvider as outlined in the MUI documentation at https://mui.com/material-ui/guides/interoperability/#css-injection-order-3. This approach has proven effective in enhancing performance in my experience. Give it a try!

import * as React from 'react';
import { StyledEngineProvider } from '@mui/material/styles';

export default function App() {
  return (
    <StyledEngineProvider injectFirst>
      {/* Your component tree. Now you can override Material UI's styles. */}
    </StyledEngineProvider>
  );
}

Production Challenges: Addressing Style Problems with Material UI and Next JS 13

Answer №1

Answer №2

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