Supply Chain traceability with blockchain

Problem to be solved:

• How to trace the origin of a product?
• Expiration date of a product?
• Error in the supply chain?
• Invalid Source?
• Lack of transparency?
• Seamless communication between the supply chain partners?
• Authentication of the product?
• Accurate information about the product?

App description:

• App Layer:
  • Producer
  • Distributor
  • Retailer
  • Consumer
• Blockchain Layer:
  • Trading System
  • Review System
  • Smart Contracts
• Infrastructure Layer:
  • IPFS
  • blockchain node connection
  • Kubernetes
  • Serverless functions
  • Cloud storage

System Architecture:

App Roles:

• Admin

  • Create new user and assign roles
  • Edit user details
  • Delete user
  • View user details
  • Audit user activities

• Producer

  • Register Product
  • Update Product
  • Delete Product
  • View Product
  • View All Products
  • Sell Product

• Processor

  • View Product
  • View All Products
  • Buy Product
  • Sell Product
  • Review Product

• Distributor

  • View Product
  • View All Products
  • Buy Product
  • Sell Product

• Retailer

  • View Product
  • View All Products
  • Buy Product
  • Sell Product
  • Return Product

• Customer

  • View Product
  • View All Products
  • Buy Product
  • Return Product
  • Review Product

• Certifier

  • View Product
  • View All Products
  • Review Product
  • Certify Product
  • De-certify Product
  • issue certificate to producer
  • issue certificate to distributor

Example supply chain implementation with blockchain traceability:

1. Food industry of Bangladesh
2. Footwear industry of Bangladesh

Basic breakdown of the Food industry supply chain project:

• Producer & Farmer
  • is the person who produces the raw product
  • is verified by the certifier
  • is supplying the raw product to the processor
  • is stakeholder of the supply chain
• Investigator & Certifier
  • is the person who investigates the product
  • is verifying the product
  • is issuing the certificate to the producer
  • is govt authority, private authority or a third party
• Stakeholder
  • is the person who is involved in the supply chain
  • is the person who is interested in the supply chain
  • is the person who is affected by the supply chain
• Products
  • is the raw product
  • is the processed product
  • is the final product
  • has a unique id
  • has a name
  • has a description
  • has a price
  • has a quantity
  • has a date of production
  • has from whom it is produced, shipped, sold
• Processor
  • is the person who processes the raw product
  • is verified by the certifier
  • is supplying the processed product to the distributor
  • is stakeholder of the supply chain
• Distributor
  • is the person who distributes the processed product
  • is verified by the certifier
  • is supplying the final product to the retailer
  • is stakeholder of the supply chain
• Retailer
  • is the person who sells the final product
  • is verified by the certifier
  • is selling the final product to the customer
  • is stakeholder of the supply chain
    Try running some of the following tasks:

npx hardhat accounts
npx hardhat compile
npx hardhat clean
npx hardhat test
npx hardhat node
node scripts/sample-script.js
npx hardhat help