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16 lines
669 B
16 lines
669 B
2 years ago
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# Festival Buy Ticket
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A core functionality of your smart contract is the ability to sell tickets. You will sell them for 0.1 Ethers. An Ethereum address could own several tickets.
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You learn to take into account the value field of a transaction.
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### Instructions
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- Create a new Smart Contract `BuyTickets`.
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- Add a function `buyTicket()` that takes no parameters and that allows a user to buy one ticket for 0.1 Ethers. If a user pays more than 0.1 the excess is kept.
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- Add a function `ticketsOf()` that takes as parameter an ethereum address and returns the number of tickets that this address owns.
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### Notions
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- [solidity docs](https://docs.soliditylang.org/)
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