Day 5: Solana programs are upgradeable and do not have constructors

Day 5 of RareSkills Solana Course.

Setup

1. Configure Solana to run on localhost: solana config set --url localhost
2. Run the test validator node on another terminal: solana-test-validator
3. Run Solana logs on another terminal: solana logs
4. Build Anchor program: anchor build
5. Deploy Anchor program: anchor deploy
6. Sync program_id with Anchor key: anchor keys sync
7. Run tests: anchor test --skip-local-validator --skip-deploy

Notes

• Solana programs don't have constructors.
• Solana programs are mutable (upgradeable) by default.
  • Solana doesn't need delegatecall, since programs can be upgraded.
• Solana programs don't have immutable variables.

References

• anchor deploy
• Solana deploy "account data too small for instruction"