Gnothi

Authors : Marin BOUTHEMY and Nicolas TOUSSAINT

This project aims to implement a blockchain application to create and visualize it. You can add participants and assets and define permissions for each type of user (admin or no). The application executes request to a server which is linked with the Hyperledger Fabric locally.

Requirements

The library has some requirements :

• Angular 6
• JavaScript
• Hyperledger Composer & Fabric

Files structure

The application contains a lot of components.

First the Model card for our blockchain: Blockchain/

• model.cto -> defines the model of the blockchain
• permissions.acl -> defines the permissions, here all the users and admin have default permissions
• script.js -> script for actions

First the components :

• header -> define the header of the page
• sidenav -> define the sidenav of the page
• signin -> first login page, define the status (i.e admin or no)
• asset-list -> component for the gestion of the assets, contains a component for the form and another for a detailed view
• participant-list -> same but for participants
• user/transaction -> execute a transaction when log as a user
• user/request -> do a request to add a new firm on the blockchain
• admin/notification -> get a notification when a request is executed
• ledger -> save all the transactions and suppresion in the ledger

Then the services:

• AssetsService -> service for the asset requests to the server
• ParticipantService -> same but with participants
• MessageService -> use for transmission of boolean (isAdmin, isNotification...)
• DataService -> use to do a request to the http server created by Hyperledger Composer for the blockchain.

Development server

Run ng serve for a dev server. Navigate to http://localhost:4200/. The app will automatically reload if you change any of the source files.

Code scaffolding

Run ng generate component component-name to generate a new component. You can also use ng generate directive|pipe|service|class|guard|interface|enum|module.

Build

Run ng build to build the project. The build artifacts will be stored in the dist/ directory. Use the --prod flag for a production build.

Running unit tests

Run ng test to execute the unit tests via Karma.

Running end-to-end tests

Run ng e2e to execute the end-to-end tests via Protractor.

Further help

To get more help on the Angular CLI use ng help or go check out the Angular CLI README.