bem / webpack-feature-flags-plugin

webpack-feature-flags-plugin

Webpack plugin for Feature Flags development.

Usage

1. Add plugin in webpack config

  plugins: [
    new FeatureFlagsWebpackPlugin([
      {
        value: 'FEATURE_1',
        component: 'Button',
      },
    ]),
  ],

2. Create a function that returns false by default

export function isFeatureEnabled(_feature: { value: string; component: string }): boolean {
  return false
}

3. Add new feature in your component. The plugin checking the call isFeatureEnabled function and replaces its call to true or false, depending on the flag passed to it

import React from 'react';

export const Button = () => {
    if (isFeatureEnabled({ value: 'FEATURE_1', component: 'Button' })) {
        return <button>Button with new feature</button>
    }

    return <buttton>Regular button</button>
}