Luận văn đại học

Đề tài

Xây dựng ứng dụng quản lý và giao dịch bất động sản áp dụng công nghệ Blockchain (Dapps).

Nhóm sinh viên thực hiện:

1. Trần Tấn Lộc - 16520679
2. Nguyễn Duy Quốc - 16521007

Smart contract

RoleBasedAcl contract

Manage role-based access control. 2 roles: SuperAdmin, Notary.

Properties:

• Assign role to address
• Unassign role to address
• Check role of address
• Get all address and role

RealEstate contract

Real estate management contracts

Properties:

• Create new certificate (notary)
• Activate certificate (owner)

Transaction contract

Real estate transactions contract

Properties:

The transaction process takes place through 4 steps as follows:

1. Create transaction: Buyer create transaction and send deposit amount to smart contract.
2. Accept transaction: Seller accept deposit and receive deposit amount front smart contract.
3. Payment: Buyer payment the remaining amount + tax (registration tax) and send it to smart contract.
4. Confirm transaction: Seller confirm transaction, receive the remaining amount - tax (personal income tax) from smart contract. At the same time, real estate be transferred to buyer.

In addition, between steps 1-2, 2-3, 3-4. Buyer or Seller can Cancel transaction.

Deploy smart contracts

Deploy smart contracts using truffle framework

• Test smart contracts

  truffle test
  

• Deploy smart contracts to your local Ganache instance

  truffle migrate --reset
  

• Deploy to other networks like testnet or mainnet

  truffle migrate --reset --network ropsten
  

Front end

Notes: After deploy smart contract. Replace contract address in client/config/common-path, replace contract json file in client/src/contracts

Run

npm start

Back end

Notes: After deploy smart contract. Replace contract address in server/src/config/common-path, replace contract json file in server/src/contracts

Run

npm run dev