READCODE.md

Repairing

1. Deploy contract

$ truffle migrate $ truffle migrate -reset

I. Install OpenZeppelin and Ganache, Compile và Deploy Smart Contract, Interact với Web3

1. start ganache-cli

$ npx ganache-cli –deterministic

2. check accounts

$ npx oz accounts

3. check balance of account

$ npx oz balance

4. Deploy smart contract with “create” command line

$ npx oz create

5. call the functions which write data to blockchain, in this example, it is store() function

$ npx oz send-tx

6. the functions which read data from blockchain, in this example, it is retrieve() function

$ npx oz call

II. Upgradeable Smart Contract

7. Deploy contract với lệnh "create"

$ npx openzeppelin create or $ npx oz create

8. Check send transaction by

$ npx oz send-tx

9. Check data send

$ npx oz call

NEXT. Upgrade smart contract bằng lệnh

10.

$ npx openzeppelin upgrade

11. Check result

$ npx oz call