Skip to content

Latest commit

 

History

History
29 lines (21 loc) · 1.11 KB

upgradable.md

File metadata and controls

29 lines (21 loc) · 1.11 KB

Upgradable

The Upgradable concrete class provides a way to upgrade a contract to a new version while maintaining state. It is designed to be used as a base class for contracts that need to be upgradable. It also allows for optional upgradability, so that contracts can be deployed with the ability for authorized user to opt-out of future upgrades.

Upgradable Contract

An upgradable contract may be upgraded by the upgrader account. At time of deployment, upgrader is set the the creator account. Only the creator account may grant the upgrader role to another account.

In order to perform contract upgrade followed by action:

  1. Implement upgrade method in Airdrop contract.
@arc4.abimethod
def update(self) -> None:
  ##########################################
  assert Txn.sender == self.upgrader, "must be upgrader"
  ##########################################
  assert self.updatable == UInt64(1), "not approved"
  ##########################################
  # replace pass with your code
  pass
  1. Use command line tool to upgrade contract as upgrader account.
scs-cli airdrop update -a 1