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re: Tutorial: How to share code between iOS, Android & Web using React Native, react-native-web and monorepo VIEW POST

FULL DISCUSSION
 

Hi Bruno,

How to use 3rd lib, I want to add react-native-element package.
It's work well on mobile, but when I run web app, it's error below:

Support for the experimental syntax 'classProperties' isn't currently enabled (41:23):

  39 | 
  40 | export default class SwipeRating extends Component {
> 41 |   static defaultProps = {
     |                       ^
  42 |     type: 'star',
  43 |     ratingImage: require('./images/star.png'),
  44 |     ratingColor: '#f1c40f',

Add @babel/plugin-proposal-class-properties (https://git.io/vb4SL) to the 'plugins' section of your Babel config to enable transformation.

Here's what I added to config-override.js on packages/web

const appIncludes = [
  ...
  resolveApp('../../node_modules/react-native-elements'),
  resolveApp('../../node_modules/react-native-vector-icons'),
]

module.exports = function override(config, env) { 
  ...
  config.module.rules[2].oneOf[1].options.plugins = [
    require.resolve('babel-plugin-react-native-web'),
    require.resolve('@babel/plugin-proposal-class-properties'),
  ].concat(config.module.rules[2].oneOf[1].options.plugins)
  ...
}

In future, I will add react-navigation and some other packages.
Please help, many thanks!

 

Did you make it work?

I haven't tried your code but yes, changing config-override.js correctly should be enough.

 

Was anyone able to add react-navigation to the project? I got react-native-elements working by following the above comment.

Here's a working example for React-Navigation with web :
github.com/react-native-elements/r...

Thank for documenting all this work thoroughly.
As a React-Native noob, this guide was very easy to follow along ! Cheers!

I got react-navigation's drawer working on the web.

The following is my config-override.js

const fs = require('fs')
const path = require('path')
const webpack = require('webpack')

const appDirectory = fs.realpathSync(process.cwd())
const resolveApp = relativePath => path.resolve(appDirectory, relativePath)

// our packages that will now be included in the CRA build step
const appIncludes = [
  resolveApp('src'),
  resolveApp('../components/src'),
  resolveApp('../../node_modules/@react-navigation'),
  resolveApp('../../node_modules/react-navigation'),
  resolveApp('../../node_modules/react-native-uncompiled'),
  resolveApp('../../node_modules/react-native-elements'),
  resolveApp('../../node_modules/react-native-gesture-handler'),
  resolveApp('../../node_modules/react-native-ratings'),
  resolveApp('../../node_modules/react-native-screens'),
  resolveApp('../../node_modules/react-native-tab-view'),
  resolveApp('../../node_modules/react-native-vector-icons'),
  resolveApp('../components/libraries/MSALAuthLogin'),
  resolveApp('../../node_modules/react-native-vector-icons'),

]

module.exports = function override(config, env) {
  // allow importing from outside of src folder
  config.resolve.plugins = config.resolve.plugins.filter(
    plugin => plugin.constructor.name !== 'ModuleScopePlugin'
  )
  config.module.rules[0].include = appIncludes
  config.module.rules[1] = null
  config.module.rules[2].oneOf[1].include = appIncludes
  config.module.rules[2].oneOf[1].options.plugins = [
    require.resolve('babel-plugin-react-native-web'),
    require.resolve('@babel/plugin-proposal-class-properties'),
  ].concat(config.module.rules[2].oneOf[1].options.plugins)
  config.module.rules = config.module.rules.filter(Boolean)
  config.plugins.push(
    new webpack.DefinePlugin({ __DEV__: env !== 'production' })
  )

  return config
}

thanks for the input
i am facing similar issue while using GoogleSigninButton from react-native-google-signin.

i tried adding require.resolve('@babel/plugin-proposal-class-properties') as you suggested below.

also tried to update babel.config.js with the following, didnt worked as well...
module.exports = {
plugins: [
[
'@babel/plugin-proposal-decorators',
{
legacy: true,
},
],
[
'@babel/plugin-proposal-class-properties',
{
loose: true,
},
],
'@babel/plugin-syntax-dynamic-import',
'@babel/plugin-transform-regenerator',
[
'@babel/plugin-transform-runtime',
{
helpers: false,
regenerator: true,
},
],
],
presets: ['@babel/preset-flow', 'module:metro-react-native-babel-preset'],
}

also tried with loose: true
require.resolve('@babel/plugin-proposal-class-properties', {
loose: true,
}),

any suggestion please?

thanks for you time.

Hi Oz, were you able to make it run? Did you try with a compatible release (any before 0.60)?

Hi Nishant,

Unfortunately I was not able to solve it.
I am not sure about earlier versions but I went over many possible suggestions, none of them worked...
Any additional idea that I can try?

Thanks for the reply

Use this config to fix the issue

config.module.rules.push(
    {
        test: /\.js$/,
        use: {
            loader: 'babel-loader',
            options: {
                // Disable reading babel configuration
                babelrc: false,
                configFile: false,

                // The configration for compilation
                presets: [
                    '@babel/preset-env',
                    '@babel/preset-react',
                    '@babel/preset-flow'
                ],
                plugins: [
                    '@babel/plugin-proposal-class-properties',
                    '@babel/plugin-proposal-object-rest-spread'                  
               ]
            }
        }
    }
)

Add the above code before the return config line

Thanks Rajendran

i tried adding the above as part of config-overrides.js
it didn't helped.

BTW, i`ve executed 'sudo yarn add @react-native-community/google-signin'

Under the folder 'react-native-web-monorepo/packages/components'
Is that the right location?

Thanks, Oz

An update...
i had to add two more dev dependencies under the web module.
sudo yarn add --dev babel-loader
sudo yarn add --dev @babel/preset-flow

now i am getting different error:
/react-native-web-monorepo/node_modules/@react-native-community/google-signin/src/GoogleSigninButton.js
Attempted import error: 'requireNativeComponent' is not exported from 'react-native'.

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