aws4-crypto

crypto drop in replacement for aws4 module based on sjcl. the goal is to reduce the bundle size of aws4 package while used in browser.

install

npm install aws4-crypto --save

webpack usage

module.exports = {
  ...
  resolve: {
    ...
    alias: {
      ...
      crypto: 'aws4-crypto',
      ...
    }
    ...
  },
  ...
}

Due to internal usage of sjcl, in order not to bundle crypto-browserify, add to config:

module.exports = {
  ...
  module: {
    noParse: /sjcl-aws/, // it requires crypto so webpack will bundle the browserified version. if the require fails it fallback to the browser api.
  ...
  }
  ...
}

additional steps can be taken in order to reduce the aws4 package bundle size in browser

npm install url-lite --save
npm install null-loader --save-dev

add to webpack config:

module.exports = {
  ...
  resolve: {
    ...
    alias: {
      ...
        url: 'url-lite' // aws4 uses url
      ...
    }
    ...
  },
  module: {
    ...
    rules: [
      {
        test: path.resolve(process.cwd(), 'node_modules/buffer/index.js'), // aws4 uses querystring-browser which requires it but it has no usage
        use: [{
          loader: 'null-loader'
        }]
      },
      ...
    ]
    ...
  }
  ...
}

license

MIT