Let's create a more complex smart contract and name it donation.vy, as follows. You can refer to the followng GitLab link for the full code: https://gitlab.com/arjunaskykok/hands-on-blockchain-for-python-developers/blob/master/chapter_03/donation.vy:
struct DonaturDetail: sum: uint256(wei) name: bytes[100] time: timestampdonatur_details: public(map(address, DonaturDetail))......@publicdef withdraw_donation(): assert msg.sender == self.donatee send(self.donatee, self.balance)
Compile and deploy the smart contract as before. Don’t forget to remove all of your files in the build/contracts directory and restart your Ganache if you reuse the project directory.
Take a look at the following lines:
struct DonaturDetail: sum: uint256(wei) ...
