• Truffle v5.1.10
• Node v10.18.0
• Ganache CLI v6.8.1 (ganache-core: 2.9.1)
• Web3 v1.2.4

Run npm install

Run ganache cli with 30 accounts created:

ganache-cli -a 30 -l 8000000

Compile and deploy contracts on the local environment:

truffle compile && truffle migrate --reset

Copy the public keys of those 30 accounts and save them into ./src/server/oracles.json file. This step is required because those oracles need some money to register itself with the contract (10 ether registration fee).

Start server to simulate oracles:

npm run server

Start dapp:

npm run dapp

Go to localhost:8000 to see the dapp. To simply test the dapp, you can do the following:

1. Select the flight that you want for all three drop down boxes (the same flight)
2. Click on Buy button to buy the insurance of the selected flight
3. Click on Submit-to-Oracles button to initiate the flight status update
4. Go to the console of npm run server, you will see like the following:

Flight [TG1001] status has been updated to [20]

You might want to do step number 3 until you see such message with the status code not equal 0 or 10.

5. Click on Claim button to get the amount back. You can also see the current balance will be increase ~1.5 ether.

In order to run tests you can simply run the following commands:

truffle compile && truffle test

I've include the tests for airline consensus, oracles registration as well as the complete scenario tests. Please see the test files.

FlightSurety is a sample application project for Udacity's Blockchain course.

This repository contains Smart Contract code in Solidity (using Truffle), tests (also using Truffle), dApp scaffolding (using HTML, CSS and JS) and server app scaffolding.

To install, download or clone the repo, then:

npm install truffle compile

To run truffle tests:

truffle test ./test/flightSurety.js truffle test ./test/oracles.js

To use the dapp:

truffle migrate npm run dapp

To view dapp:

http://localhost:8000

npm run server truffle test ./test/oracles.js

To build dapp for prod: npm run dapp:prod

Deploy the contents of the ./dapp folder

• How does Ethereum work anyway?
• BIP39 Mnemonic Generator
• Truffle Framework
• Ganache Local Blockchain
• Remix Solidity IDE
• Solidity Language Reference
• Ethereum Blockchain Explorer
• Web3Js Reference