PEAK Userland

Installation

1. Add the peak userland Library to your JS project via NPM npm install @bitmechanics/peak-userland --save
2. Use this module in peak:

#!javascript

const methodDefinitions = require('./method-definitions');
const peakUserland = peak.useModule(require('@bitmechanics/peak-userland'), methodDefinitions);

Method definitions

Define all the methods, that you need in this particular App. In this example we will build an mobile App that has a calculator functionality. This calculator stores the latest result in the App bundle.

We might need clear() as a JS function to reset the calculator and storeResult(result) aswell as getLastResult() as native methods.

Our method-definitions.js file will look like this:

#!javascript

module.exports = {
   native: [
      {
      	name: 'storeResult',		
      	payloadType: 'number'
      },
      {
        name: 'getLastResult',
        callbackDataType: 'number'
      }
   ],
   js: [
      {
         name: 'clear'
      },
      {
         name: 'getCurrentResult',
         callbackDataType: 'number'
      }
   ]
}

In our App we now need to implement these functions.

Implement JS Functions

We only have one JS function, this could be implemented like this:

#!javascript


new Vue({

   ready() {
     
      const userland = peak.modules.peakUserland // grab a reference to the userland module
      userland.bind('clear', this.clearUI)       // 'bind' this.clearUI to the defined method definition. This method can now be called from native.
      userland.bind('getCurrentResult', this.getCurrentResult)

      // After binding a method, you could also access it through:
      userland.clear()
     
   },

   methods: {

      clearUI() {
         this.result = ''
         this.steps = []
         ...
         this.peak.info("results cleared!")     // You can always access the logger via this.peak.info or this.peak.error (or this.peak.logger)
      },
      getCurrentResult(callback) {
         callback(this.result);
      }
   }
})

Call native methods