Skip to content
L

LuckyWinner

A game where you can win a prize just by participating

31
Built at ETHforAll

Created on 19th February 2023

•

L

LuckyWinner

A game where you can win a prize just by participating

Carousel Gallery Item: 1
Carousel Gallery Item: 2
Carousel Gallery Item: 3
Carousel Gallery Item: 4
Carousel Gallery Item: 5
Carousel Gallery Item: 6

The problem LuckyWinner solves

It can be used in giveaways and crowdfunding where a random needy person can be supported. Usually randomness cannot be generated on-chain because this data can be easily used to manipulate the smart contract that we have deployed. Thats

Challenges I ran into

I faced challenges while defining entities for my subgraph, also checking for all connections i.e. the smart contract, subgraph and the frontend left room for a lot of bugs.
It was very tedious to solve this bugs and getover them.

Tracks Applied (4)

Polygon: Open Track

The smart contract is deployed on the polygon mumbai testnet.
Polygon Technology

Polygon Technology

Chainlink

The randomness generated for picking out the winner among the joined players is actually generated through an oracle. Th...Read More
Chainlink

Chainlink

The Graph: New Subgraph(s)

Created a subgraph to return values for max no. of players, winner, fees etc. to the frontend. the parameters are queri...Read More
The Graph

The Graph

Quicknode: Built on QuickNode RPC

The rpc node for this project on the mumbai testnet is working on quicknode.
QuickNode

QuickNode

Technologies used

Solidity

React

Next.js

Chainlink

The Graph

Hardhat

Polygon Chain

Cheer Project

Cheering for a project means supporting a project you like with as little as 0.0025 ETH. Right now, you can Cheer using ETH on Arbitrum, Optimism and Base.

Discussion

Builders also viewed

See more projects on Devfolio