An Ethereum DApp(Decentralized Application) 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.
Click here to view the SupplyChain contract on etherscan
The contract code has been verified and it is visible on rinkeby.etherscan.io
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.
Please make sure you've already installed ganache-cli, Truffle and enabled MetaMask extension in your browser.
A step by step series of examples that tell you have to get a development environment running
git clone https://github.com/DineshBS44/Product-Supply-Chain
Change directory to supply-chain folder and install all requisite npm packages (as listed in package.json):
cd supply-chain
npm install
ganache-cli -m "<Seed Phrase>"
or
truffle develop
truffle compile
This will create the smart contract artifacts in folder build\contracts.
Migrate smart contracts to the locally running blockchain, ganache-cli:
truffle migrate
Or, Migrate smart contracts to the Rinkeby Test Network:
truffle migrate --reset --network rinkeby
truffle run verify SupplyChain --network rinkeby --license MIT
truffle test
All 10 tests should pass.
In a separate terminal window, launch the DApp:
npm run dev
- 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.
- ganache-cli - For running a local blockchain mostly used for testing purposes
- dotenv - For managing data in .env files
- truffle-hdwallet-provider - Used to create a provider using Seed phrase(Mnemonic) and Infura RPC URL to connect to the Rinkeby Test Network
- web3 - To interact with the deployed smart contract either on Ganache or Rinkeby test network
- mocha & chai - To test the smart contracts written in solidity
- lite-server - To host the DApp on the server
- truffle-plugin-verify - To verify the smart contract code on Etherscan using its API
- Etherscan - View and keep track of transactions happening around a smart contract as well as view its code, read and write stuff to it
- Remix - To compile, deploy and test smart contracts on the Javascript VM
- Metamask - Ethereum wallet which is connected to the DApp
- Infura - For getting the API endpoint to connect to the Etherem network without having to run a full node
- IPFS - To make the DApp completely decentralized, the DApp and all its files are hosted to IPFS
- Truffle - Framework used to write, compile, test and deploy smart contracts with ease along with the frontend of the DApp.
Make sure IPFS-cli is installed
ipfs add -r Product-Supply-Chain
Now the whole project can be view using this link The IPFS hash used to store the project folder is QmcFzmx6j7QYvSEuSXUSZrdVR5tcU6p1NWwk9HS93vW9k4
ipfs daemon
In an different terminal window, execute the following command to publish
ipfs name publish QmcFzmx6j7QYvSEuSXUSZrdVR5tcU6p1NWwk9HS93vW9k4
Use https://gateway.ipfs.io/ipfs/QmcFzmx6j7QYvSEuSXUSZrdVR5tcU6p1NWwk9HS93vW9k4 to see the published project on IPFS
The transaction hash and contract address for the smart contracts deployed to the Rinkeby Test Network are
- transaction hash - 0x92105d3ff48a8a63e16e7f694f2989d00218f85a4f922c215eed68d7237aaab0
- contract address - 0xA6bde78Ed2D8eF4d82425e481fb4094B1Cd3C462
- transaction hash - 0xf903b17cf938ce45cf4e66914cdb4f376f4bd21c3f74d2341fd15ab67e6a292c
- contract address - 0x01dAE76C3AF54F77D9bf1d51437f4b82dF4dD7D1
- transaction hash - 0xff73bc83785f384acb2e03078fe17eadb94279ca41f303dd7edab7533ca8f16a
- contract address - 0xD451de7349c89674C8043f32b858Ec072E22D131
- transaction hash - 0xebbf29e0a7cc09fecd98ba8bcc442e7eaeff3125e8fb21992322c71208aad643
- contract address - 0x6d17CdcaeB9c49Bda9810dD4C8e8DF6F21893C84
- transaction hash - 0x77f39a47869690c5534704f10141d1860e166c570ddaafde78c19703a69d3e61
- contract address - 0xB8eB51696C71DB081909908fcFC36C17C65B2c64
- Truffle version - 5.3.14
- Solidity version - 0.8.6
- Node JS version - 14.16.1
- truffle-hdwallet-provider version - 1.0.17
- web3 version - 1.4.0
A product has been tracked through the supply chain and these transactions can be viewed on rinkeby.etherscan.io
The Transactio hashes are
- Harvested - 0x92a3a10b852ab26efb94088f1c3a9212211ab978f37e03ac37fcc9b6af715466
- Processed - 0x368eb35fac9807c16b4d3bad77ec9d72f34ae56c384fe84ae1193bee03e73b0d
- Packed - 0x50c3c0b5fa691d955c1e4eafd94ac91082d66d5e353b837378b4b5a902245009
- ForSale - 0x50bb804da55f9cc3adf53dfc1cb640aaf6deb30ded7799629c085ec5a1f9a998
- Sold - 0xdb99ffd9f6d2ac59f6fccd2349e9a3f0dbfcb262c0f1d0ccf3ddf61797338374
- Shipped - 0x94e0465d803053ce0d0811891cba91c08cfc0701a6ac83dc7a6fc65309114c06
- Received - 0x2da6ce670bff2cec745e919c0b61e08ec983a8d24564dea0f4f4526d8cbf8710
- Purchased - 0x25ea83867bfce70a3ea296b448aca4db1b836eb2bccff2ab93711419ee57d3c8
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Dinesh B S
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Licensed under MIT License : https://opensource.org/licenses/MIT