Supply chain Smart Contract deployed on IOTA 2.0

Project for the Blockchain and cryptocurrency exam. The project consist in the creation of a smart contract for managing a very compact supply chain. The deployment is done on the IOTA 2.0 testnet, available at the moment of writing. The idea behind the implementation comes from the Colnago announcement, where products with a unique identifiers can be tracked across the supply chain using blockchain technology. The smart contract present in this repo, tries to provide a possible solution in a very simplified manner, allowing to track a product from the manufacturer to the client and being able at every step to verify its origin.

Problems in Existing System

Currently tracking, selling, purchasing of product in traditional systems can not be trusted.
Blockchain can solve this by providing immutable and verifiable data sources

What this project provide?

An implementation of a smart contract for storing the product details across the supply chain and verifying the authenticity of that product during every step.

Included Components

Solidity (Ethereum language)
Metamask (Ethereum wallet)
Web3JS

Prerequisites

Nodejs v18.0 or above
Solidity v0.8.0 or above
Metamask set with the IOTA testnet network

Deployment Steps

Load the smart contracts on Remix (which is supported by IOTA) compile and deploy them to the IOTA testnet. See the IOTA smart contract wiki for more details

Clone the repository locally and move into it

git clone https://github.com/treyvian/BlockchainRetailSupplyChain.git
cd RetailSupplyChainEthereum/

Copy the address on which the contract is deployed and past it in the file src/js/app.js in the deployedAddress variable.

start the front end by running:

npm run dev

Interact with the smart contract via the web page

This application supports three roles for an account

Owner
Manufacturer
Retailer

Owner of the contract : it is the which execute the transaction to deploy the contract. It is basically a super-user, it can add Roles to other accounts can remove product from memory and execute every action available in the front end of the application.

Manufacturer : It has the ability to create new product and store them in memory

Retailer : It can buy products directly from the Manufacturer and resell them to the general public.

Every other account that has no role, can only buy products sold by the Retailers.