Tezos-lottery_Dapp

Demo

About

The problem it solves The problem Tezos-lottery_Dapp solves This is a SmartPy contract that implements a lottery game. It has two entry points: buy_ticket and end_game. The buy_ticket entry point is used by players to purchase lottery tickets. Before buying a ticket, the contract checks if there are still tickets available to purchase and if the player has sent enough amount of tez to purchase a ticket. If both conditions are met, the contract adds the player's address to a map of players and decrements the number of available tickets. If the player has sent more tez than the cost of a ticket, the extra balance is sent back to the player. The end_game entry point is used by the contract owner to end the game. Before ending the game, the contract checks if all tickets have been purchased. If so, a winner is picked by generating a random number and selecting a player from the map of players. The winner's address is used to send the entire balance of the contract as a reward. After the reward is sent, the game is reset. A test scenario is also provided that tests the functionality of the contract. The test scenario includes both valid and invalid test cases for the buy_ticket and end_game entry points. This Project is solved the problem of cheating and fraud in Lottery System. By its Decentralised in Nature. After bidding is over,the Winning Amount of Tezos-lottery Cryptocurrency will automatically transferred to the randomly choosen User's Account. Due to Smart Contract written in Smartpy and deployed on Ghostnet Blockchain network. Which is 100% Secure.

How it's made

Challenges we ran into Connceting SmartContract written in smartpy to Frontend (React.js) through Tezos toolkit Taquito.js. Here i take refrence as https://tezostaquito.io/ or Taquito's docs . Deploy smart contract on ghostnet. But to be honest i didn't face as such difficulty, due available so many documentations in well structured regarding Tezos dApp Development. And i really enjoy this journry.