Supply chain & data auditing

UML Diagrams

Activity Diagram

Class Diagram

State Diagram

Sequence Diagram

Project Write-up

Libraries

Additional to the libraries included in package.json the library @truffle/hdwallet-provider was included to handle the deployment to the Rinkeby network.

Contract and Deployment

Contract Address = "0xA3F0e39b27E4D36D33c637954DCBb030FdF93729";
Tx Hash = "0xe3cd23d5d1f2c96897b05f0c61eaaccd4dc2c9fdc023290029c07810801e858a";

Harvested = "0x2de176c74683cae9894e11475f8ac98ee3d91b86b1ca2e703139bec1fff178c9";
Processed = "0xa32d1dc060b00623bc5fa8e6179ad71694fada9b6cbbdd288ae622138c1238fa";
Packed = "0x63010064f4109241c6a595d29a032c874e8c97fcec7e2b1e625c1cc42a08ba7b";
ForSale = "0x88dece21aede73559b23512d5e5e89c1104f6cd39cdb70c7795b454171616db1";
Sold = "0xafa5384b7507778b31584218af310ea8e57b116c06e510b8f4aaa54ae4f9c233";
Shipped = "0x613c9220fb1b1d3dfadfd1f9579b0747c9857c7a62e04f14b403b5dc7fe84b11";
Received = "0x342f5c3f270725e2ccb99a81428742abdd4084bc4484438bae18ca5197dd1b02"
Purchased = "0x90019f8c71bbce6e5cb29eae6a9e47c931eb20b44a3acb3510c6f0ac61dce3d9";

Project

This repository containts an Ethereum DApp that demonstrates a Supply Chain flow between a Seller and Buyer. The user story is similar to any commonly used supply chain process. A Seller can add items to the inventory system stored in the blockchain. A Buyer can purchase such items from the inventory system. Additionally a Seller can mark an item as Shipped, and similarly a Buyer can mark an item as Received.

The DApp User Interface when running should look like...

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.

Installing

A step by step series of examples that tell you have to get a development env running

Clone this repository:

git clone https://github.com/udacity/nd1309/tree/master/course-5/project-6

Change directory to project-6 folder and install all requisite npm packages (as listed in package.json):

cd project-6
npm install

Launch Ganache:

ganache-cli -m "spirit supply whale amount human item harsh scare congress discover talent hamster"

Your terminal should look something like this:

In a separate terminal window, Compile smart contracts:

truffle compile

Your terminal should look something like this:

This will create the smart contract artifacts in folder build\contracts.

Migrate smart contracts to the locally running blockchain, ganache-cli:

truffle migrate

Your terminal should look something like this:

Test smart contracts:

truffle test

All 10 tests should pass.

In a separate terminal window, launch the DApp:

npm run dev

Built With

• Ethereum - Ethereum is a decentralized platform that runs smart contracts
• IPFS - IPFS is the Distributed Web | A peer-to-peer hypermedia protocol to make the web faster, safer, and more open.
• Truffle Framework - Truffle is the most popular development framework for Ethereum with a mission to make your life a whole lot easier.

Authors

See also the list of contributors who participated in this project.

Acknowledgments

• Solidity
• Ganache-cli
• Truffle
• IPFS