Chapter 12: Implementing Business Events

Introduction

In this chapter, we will update the code from Chapter 11 to include event creation and monitoring on the server and event subscription and notification in the browser.

Chapter 12
↳ controller
    ↳restapi
    router.js
        ↳features
        ↳composer
            autoLoad.js
            hlcAdmin.js
            hlcClient.js          <== Updated
            queryBlockChain.js
            Z2B_Services.js       <== Updated
            Z2B_Utilities.js
        ↳ text
            multi-lingual.js
            resources.js
↳ HTML
    index.html
    admin.html
    buyer.html                     <== Updated
    ceateConnectionProfile.html
    createMember.html
    createOrder.html
    deleteConnectionProfile.html
    financeCo.html                 <== Updated
    getMemberSecret.html
    removeMember.html
    provider.html                  <== Updated
    seller.html                    <== Updated
    shipper.html                   <== Updated
    singleUX.html
    ↳CSS
    pageStyles.css
    ↳js
    z2b-admin.js
    z2b-buyer.js                <== Updated
    z2b-events.js               <== Updated
    z2b-financeCo.js            <== Updated
    z2b-initiate.js
    z2b-provider.js             <== Updated
    z2b-seller.js               <== Updated
    z2b-shipper.js              <== Updated
    z2b-utilities.js
↳ network
permissions.acl
queries.qry
    ↳lib
    sample.js                    <== Updated
    ↳models
    base.cto
    events.cto
    sample.cto                   <== Updated

No new files are created. Fifteen existing files are updated:

Web Server Code Unique to this Chapter

• hlcClient.jss
  • add event monitoring to client routines
  • add event notification to browser via web socket. - it should be noted that this is a rough implementation for notifying the user of asynchronous events and is appropriate for a lightweight demo but inappropriate for a PoC or a production system.

Defining the business network

• /models/sample.CTO add events to sample.CTO file
• /lib/sample.js add event notification to transactions

Web Browser Code Unique to this Chapter

• all UX files Add placeholder for notification icon and add placeholder for notification counter.
• all UX javascript files use subscribe, unsubscribe and notifyMe routines
• z2b-events.js add event support for alert subscription, notification
• CSS/pageStyles.css add support for notification icon and text