Architect a Blockchain Supply Chain Solution

UML

Activity Diagram

Sequence Diagram

State Diagram

Class Diagram

Libraries

 web3 version               : "0.20.6" (version of web3 library used for connecting to blockchain)
 
 truffle-assertions version : "^0.9.2" (used for assertion of events emitted by contracts during test)
 
 node version               : "16.14.2"

IPFS

IPFS was not used for this project.

General write-up

This repository containts an Ethereum DApp that demonstrates a Supply Chain flow of Coffee from a Farmer to Consuer. It includes the contract definitions, frontend and truffle configuration for sepolia and development network. The Farmer harvests, processes, packs and puts coffee for sale, distributor buys and ships coffee, retailer receives coffee and consumer purchases it. The state of coffee keeps changing at every stage.

Deployment

Ethereum network - Sepolia

Supply Chain Contract address - 0x33914A839acecE9e3b57BEB6e27320649146E906

Trasaction history -

Harvested - 0x1e4af317e233ce14c1a24dfa1e63e7b03911744d3039512d1bc4711ee5aa7e5e
Processed - 0x4f3c4e8107738937dfc4f26c435a6f967c9746cc7abeab17fda333d07f08014f
Packed - 0x72186506f38bdbfb707bb5f20a041e280363c8a32acdf688428bc210d9fd5e08
ForSale - 0xc4ace6b95bbfcbb5cdd25984aadeb90cfda6e7e6de1fc7803bea6f2c8e459672
Sold - 0x381b3515f49a50e2a26093734247852aa9fac8078f806328a69a97a04f22d9c2
Shipped - 0x62d72a354a47e4a7c828a1e308075a1f931c813e02e17de794148dc8acfd38e4
Received - 0x0b6863cfb1ad76f66ecb668ab2a6280b0f16bc3968ba2cb766d693295db40f16
Purchased - 0x25b3bf193aa033c8c8aa16095fec27a3fd65cd6ad87fd709240d235d22b25a79

Steps to run

Change directory to project-6 folder and install all requisite npm packages:

cd project-6
npm install

To compile all contracts, run:

truffle compile

and:

truffle test

to test the changes.

The frontend can be accessed at http://localhost:3000 after running below command:

npm run dev

To deploy to the sepolia network:

truffle migrate --network sepolia

Madhur97/udacity_project3