This project was generated with Angular CLI version 1.7.4.

• AngularJS
• Web3.JS
• RxJS

• Solidity

The application is divided in two main structural components

The backend components is located in contracts folder and the migration scripts are located in migrations folder.

The frontend components are located in src folder. The test cases for the forntend are located in test folder and end-to-end test cases are in e2e folder. In the root folder we also have some configuration files for the frontend.

The frontend application uses following frameworks which must be installed before running the application

• NodeJS (to install please follow https://nodejs.org/en/download/)

The backend applications, uses following softwares to be installed

• Ganache (to install please follow http:https://truffleframework.com/ganache/)
• MetaMask Chrome Extention (to install please refer https://metamask.io/)

• Please download IPFS from https://ipfs.io/docs/install/

• After installation, please initialize the repo using the tutorial here https://ipfs.io/docs/getting-started/

• Before starting the IPFS Daemon, please setup CORS headers using the following commands

  ipfs config --json API.HTTPHeaders.Access-Control-Allow-Origin '["example.com"]'

  ipfs config --json API.HTTPHeaders.Access-Control-Allow-Methods '["PUT", "GET", "POST"]'

  ipfs config --json API.HTTPHeaders.Access-Control-Allow-Credentials '["true"]'

For Windows please run the following commands to set up cors

ipfs config --json API.HTTPHeaders.Access-Control-Allow-Origin "[\"example.com\"]"

ipfs config --json API.HTTPHeaders.Access-Control-Allow-Methods "[\"PUT\", \"GET\", \"POST\"]"

ipfs config --json API.HTTPHeaders.Access-Control-Allow-Credentials "[\"true\"]"

• Please start the IPFS daemon now, and leave the terminal running

  ipfs daemon

• You can verify IPFS using this link http:https://localhost:5001/webui

1. We must compile all the solidity sart contracts which are located in the contracts folder, please open the powershell on windows or terminal on linux or macos.

2. Please execute the following command from the project root directory

   truffle compile

3. Once the compilation is successful, the compiled contracts JSON will be created in build/contracts folder

4. Now we should deploy these contracts on Ganache

5. Please start Ganache.

6. You must configure MetaMask and link it with Ganache. Please refer this tutorial (http:https://truffleframework.com/docs/advanced/truffle-with-metamask)

7. Once Ganache and Metamask is set, please open the powershell and run the following command from the root of the project

   npm run compile-start

8. The above command will compile and deploy smart con tracts on truffle and will start the application

9. You can access the frontend app on http:https://localhost:4200

10. The application is ready to be used.

When we deploy the contracts on Ganache, the first wallet address under Ganache will be used for Immigration Department and it will registered in the system by default.

First and foremost, we must configure the application, that is, register verfiers and create visas. This configuration can be done using the immigration department wallet address.

An applicant, must register with the system. Please click on the Applicant button and then click on Register button. Fill in all the details along with the wallet addres from Ganache. Once register, please login and start uploading artifacts and creating new applications.

A verfier, is registered using the public address by the immigration department. Once registered in the system, verifier can use the public wallet address to login. Once verifier is logged in, they can view all the artifacts assigned to the verifier for approval.