Keg Core

Overview

The keg is a platform for developing cross-platform react apps. It comes preconfigured to target both web and mobile, and it contains a collection of utilities for simplifying development, including:

• built-in routing and navigation
• a reducer based on the relational data model
• dynamic theming via re-theme
• cross platform persistent storage

Tap usage

• To start, first setup the keg-cli
• Next, use the cli to generate a tap: keg gn tap
• cd into your tap's directory, then run yarn setup
• The tap you generated will have installed keg-core as a dependency
• Read more about tap-development here

Defining Environment Variables

• Within your tap's config file (e.g. tap.js, tap.json), you can define an envs property in the keg object like this:

module.exports = {
  ...,
  keg: {
    ...
    envs: {
      'process.env.FOO': 'bar',
      SOME_API_KEY: getAPIKey()
      'process.env.TAP_LICENSE': 'tap.package.license'
    }
  }
}

And these will be replaced in your code, so that you can use them like this:

const myFunction () {
  makeAPICall(SOME_API_KEY)
  console.log('Foo', process.env.FOO)
  console.log('This tap uses the license', process.env.TAP_LICENSE)
}

• you can define dynamic envs that pull data from a package.json or an app config by using the form: <tap|core>.<package|config>.<some_property>
  • so the tap.package.license will evaluate to the value of the license property in your tap's package.json
• every env is automatically stringified

Running with webpack / expo

• These envs are automatically replaced for you at build time

Running with other build tools

• If you use a different bundler, like rollup, you can still use these envs by importing the getKegEnvs function from keg-core/core/scripts/js/getKegEnvs
  • learn more here
• then, just use them into your tool's replacement plugin

Architecture

Store

• Reducers
• Plugins