Sub0 ink! Challenges

ink! programming language challenges made for the Sub0 Reset Bangkok

Getting started

Before tackling the challenges, you need to setup your local environment for ink! contract development first.

• Install pop-cli: https://learn.onpop.io/cli/installing-pop-cli/

About the challenges

To tackle the challenges, first fork and clone the repository

git clone https://github.com/r0gue-io/sub0-ink-challenges.git

To test your contract, run:

cargo test

🏆 CHALLENGES

✒️ Challenges	Description	Link to the challenge
Challenge 1	Basics of ink! and setting up a DAO contract	Take challenge
Challenge 2	Membership and voting mechanism to the DAO.	Take challenge
Challenge 3	Connect your DAO to the Super DAO with registration and voting	Take challenge
Challenge 4	Support creating cross-chain proposals to the Super DAO	Take challenge
Challenge 5	Build a UI for your DAO	Take challenge
Challenge 6	Ideate and design a multichain, permissionless solution for Polkadot	Take challenge
Challenge 7	Use the Pop API to create a fungibles token for token-backed voting	Take challenge

Superdao Contract Address on Pop Network

12oasvoSoRKxQ7ABrjgCftm78g4wvfyLQ33prWK69htwNsc7

🍭 Challenge 1: Basics of ink! and setting up a DAO contract

• Difficulty: Easy
• Submission Criteria: ink! contract must
  • Have a constructor accepting a name parameter.
  • Have a storage field for the DAO name.
  • Implement the provided methods.
  • Unit test for constructor and setting DAO name.
  • Be built and deployed on Pop Network testnet.
• Submission Guidelines:
  • Verify with R0GUE DevRel, and post on X.
• Prize: sub0 merch

🍭 Challenge 2: Membership and voting mechanism to the DAO.

• Difficulty: Mid
• Submission Criteria: ink! contract must
  • Use a storage-optimized data-structure Mapping or StorageVec
  • Store registered members, member votes, and proposals to vote on.
  • Implement methods to register and de-register members.
  • Implement methods to create proposals and a method to vote on proposals.
  • Unit tests for adding members, votes, and proposals.
• Submission Guidelines:
  • Verify with R0GUE DevRel, and post on X.
• Prize: sub0 merch

🍭 Challenge 3: Connect your DAO to the Super DAO with registration and voting

• Difficulty: Mid
• Submission Criteria: ink! contract must
  • Import the Super DAO trait>
  • Store Super DAO contract address.
  • Register contract as member of Super DAO - using trait-based contract calling.
  • Vote on proposals in the Super DAO - using trait-based contract calling.
  • Create proposals to call another contract - using trait-based contract calling.
  • E2E test for cross-contract call.
• Submission Guidelines:
  • Verify with R0GUE DevRel, and post on X.
• Prize: Sub0 Merch & ink! sports towel

🍭 Challenge 4: Support creating cross-chain proposals to the Super DAO

• Difficulty: Advanced
• Submission Criteria: ink! contract must
  • Support creating cross-chain proposals to the Super DAO (XCM)
  • A deployed contract on Pop Network Testnet
  • Have a cross-chain proposal successfully executed
• Submission Guidelines:
  • Verify with R0GUE DevRel, and post on X.
• Prize: Sub0 merch

🍭 Challenge 5: Build a UI for your DAO

• Difficulty: Mid
• Submission Criteria: The UI must support
  • Registering & viewing members
  • Voting on and viewing proposals
  • Viewing overall proposal votes
• Submission Guidelines: Verify with R0GUE or Dedot DevRel, and post on X
• Prize: Sub0 merch & ink! sports towel

🍭 Challenge 6: Ideate and design a multichain, permissionless solution for Polkadot

• Difficulty: Easy
• Submission Criteria: A PDF containing
  • A write-up of their proposal
  • What their idea solves, how it works, and team members (if applicable)
• Submission Guidelines: Verify with R0GUE DevRel

🍭 Challenge 7 (Bonus): Use the Pop API to create a fungibles token for token-backed voting

• Difficulty: Mid
• Submission Criteria: DAO contract must
  • Store PSP22 token contract address.
  • Use the fungibles Pop API to create a new asset.
  • Mint the asset for newly registered voter.
  • Use the asset for token-backed voting by creating a new storage item to track the Prevote of each Superdao Proposal.
  • Registered voter in the Dao will use the minted tokens to vote on the Prevote.
  • If number of approvals in the Prevote is more than the disapprovals after the deadline, submit the vote to the proposal on Superdao.
• Submission Guidelines: Verify with R0GUE DevRel, post on X with GitHub link
• Prize: Pop ring candy

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For any questions related to ink! you can also go to Polkadot Stack Exchange or ask the ink! community.