Datamine Network Completes Hardhat v3 Migration While Defending ERC777 Token Standard
**Datamine Network** successfully migrated their smart contract testing suite to **Hardhat v3**, requiring upgrades to Node.js 22, ESM modules, and ESLint v9 flat config.
Despite industry abandonment, they're **defending ERC777** over ERC20 for its superior user experience:
- **Single-transaction interactions** via hooks (tokensToSend/tokensReceived)
- **No approve-then-transfer** friction - users send tokens directly to contracts
- Powers their **Lockquidity mechanism** where users lock DAM tokens to mint FLUX in one action
**Key challenges solved:**
- Built custom Hardhat plugin for ERC1820 Registry deployment
- Implemented rigorous **re-entrancy attack testing** to prove security
- Used proper mutexes and checks-effects-interactions patterns
**Why ERC777 was abandoned:**
OpenZeppelin removed support due to complexity and re-entrancy risks. However, Datamine argues the industry gave up too quickly on a powerful standard.
The migration resulted in a **faster, cleaner, future-proof codebase** while maintaining advanced token functionality that ERC20 cannot match.
[Learn more about Datamine Network](https://datamine.network/)