Blockchain Supply Chain Solution
This is a project for Udacity's Nanodegree Blockchain Developer
One of the biggest challenges with supply chains is the lack of transparency in product tracking which leads to increased costs, counterfeit goods, and unnecessary waste. From the food on our table to the luxury handbags on store shelves - how can we trust the products we buy? For this project, I built a DApp (Decentralized Application) authenticity management system backed by the Ethereum platform that help track product origination and verify product authenticity.
UML diagrams
Activity Diagram
Sequence Diagram
State Diagram
Data Model Diagram
NOTE: This model is for practice purpose. As a result, the model does not fully represent the supply chain in real life. E.g. Distributor ship coffee to Retailer without receiving payment.
Address on Rinkeby
Transaction ID 0xd024f91fd7fdf63f81c698c8dd993932101b016342ad481c47a13a6e581a87dc
Contract address https://rinkeby.etherscan.io/address/0x5efcfc952f065200aba0dc7b6f8cc8ce4e38a8b5
Steps
For local environment
- Launch Ganache GUI
- Run the following command to test smart contracts
truffle compile truffle migrate --reset truffle test - Run local server with the following command:
npm run dev - Test DApp in browserhttp://localhost:3000/
For Rinkeby network
- Create a
.envfile in the root directory. Add environment-specific variables on new lines in the form of NAME=VALUEWALLET_MNEMONIC='Your Mnemonic goes here' WEB3_PROVIDER='Your Infura Endpoint goes here' - Run the following command to test smart contracts
truffle compile truffle migrate --reset --network rinkeby truffle test - Run local server with the following command:
npm run dev - Test DApp in browserhttp://localhost:3000/
Notes: In order to test this DApp in browser, you need MetaMask installed