pranshurastogi / flightsurety_blockchain

Flight Surety

How to run

System Requirements

1. Node v10.15.3
2. Ganache CLI v6.4.3 (ganache-core: 2.5.5)
3. Solidity 0.4.24
4. Truffle v5.0.11 (core: 5.0.11)
5. Solidity - 0.4.24 (solc-js)
6. Web3.js v1.0.0-beta.37

Setup

Obtain the code

1. Downwload and unzip this repo to a folder on your machine.
2. Open Terminal in this folder
3. Run:

npm install

Start Ganache

You will need specific configuration of ganache. So run:

ganache-cli -l 999999999999 -m "candy maplcake sugar puddi cream honey rich smooth crumble sweet treat" -e 10000 -a 30

This command will create the local test network with the following props:

1. gas limit = 999999999999
2. test accounts = 30
3. ether on each test account = 10000

Migrate contracts to ganache

Specific configuration of test network is configured in truffle under the development_cli alias.

So, you need to migrate the contract to this specific network. Hence, run in the project folder:

truffle migrate --network development_cli

Start Oracle Server

Now server depends on truffle-contract npm package, so you need to install it.

But if you just run npm install inside ./src/server folder, it will fail.

So first go ahead and open your node modules

cd ./node_modules

Then remove

rm -rf web3-providers-ws

Now, go up to you project folder again.

To start oracle server, you will have to change the folder in the Terminal first:

cd ./src/server

And install the truffle-contract

npm install

And start the server as normal Node.js process:

node server.js

Start Dapp

Dapp that will allow you to interact with deployed contracts will be server for you on localhost:8000. In the project folder run:

npm run dapp

At this point you have set up the system locally, and you are good to go with tests and interactions with UI.

CAUTION! After you run automatic tests, please tear down the local system and set it up again for interaction with UI.

To set everything up again, run in the project folder

> ganache-cli -l 999999999999 -m "candy maplcake sugar puddi cream honey rich smooth crumble sweet treat" -e 10000 -a 30
> truffle migrate --network development_cli
> cd ./src/server
> node server.js
> cd ../..
> npm run dapp

Now open the locallhost:8000 in your browser.

Run tests

IMPORTANT! You need to run the test files as described below. Otherwise, tests may fail due to bugs in the truffle/ganache.

Please, find yourself in the project folder again.

1. Run unit tests for Flight Surety Data Contract

truffle test test/FlightSuretyDataTest.js --network development_cli

2. Run unit tests for Flight Surety App Contract

truffle test test/FlightSuretyAppTest.js --network development_cli

3. Run integration tests for Oracle App with FlightSurety

truffle test test/OracleTest.js --network development_cli

Interact with UI

The Dapp has four sections: Contract, Airlines, Flights and Insurances.

Sections contain forms for the specific resource in the system.

Outcome of each form request outputs to Results section.

IMPORTANT!

When you try to search the Flight or Insurance in Get Flight/ Get Insurance forms, you need to use the Id of the flight or insurance.

Ids are integers, starting with 1.

So if you have created two insurances in the network, and you want to search for the first one, then use 1 as Insurance Id in the Get Insurance form.

Same applies to Buy Insurance. You need to use integer id of the flight. For first flight in the system the id will be 1.