The SpaceCoin Liquidity Pool Project

Project Spec

ERC20 & ICO Updates

• Add a withdraw function to your ICO contract that allows you to moves the invested funds out of the ICO contract and into the treasury address.

Liquidity Pool Contract

Implement a liquidity pool for ETH-SPC. You will need to:

• Write an ERC-20 contract for your pool's LP tokens.
• Write a liquidity pool contract that
  • Mints LP tokens for liquidity deposits (ETH + SPC tokens)
  • Burns LP tokens to return liquidity to holder
  • Accepts trades with a 1% fee

SpaceRouter

Transferring tokens to an LP pool requires two transactions:

1. Trader grants allowance on the Router contract for Y tokens.
2. Trader executes a function on the Router which pulls the funds from the Trader and transfers them to the LP Pool.

Write a router contract to handles these transactions. Be sure it can:

• Add / remove liquidity, without wasting or donating user funds.
• Swap tokens, allowing traders to specify a minimum amount out for the output token.

 

Code Coverage Report

------------------|----------|----------|----------|----------|----------------|

File	% Stmts	% Branch	% Funcs	% Lines	Uncovered Lines
contracts/	99.07	77.5	100	91.76
Pool.sol	97.56	56.25	100	90.77	... 123,132,163
SpaceCoin.sol	100	100	100	100
SpaceICO.sol	100	91.3	100	94.23	97,131,135
SpaceRouter.sol	100	75	100	87.76	... ,86,115,146
------------------	----------	----------	----------	----------	----------------
All files	99.07	77.5	100	91.76
------------------	----------	----------	----------	----------	----------------

 

Testnet Deploy Information

Contract	Address Etherscan Link
SpaceCoin	https://sepolia.etherscan.io/address/0xf50443Dd4558EE696440239ED1dBbe82513B126d#code
SpaceICO	https://sepolia.etherscan.io/address/0x78FD10E56327e10cFF9DBdAb4c4994EA88135Ee9#code
Pool	https://sepolia.etherscan.io/address/0xf4aF2b797d0723c50a9692726EE7cD7900a8ddEf#code
SpaceRouter	https://sepolia.etherscan.io/address/0x724348dF0c48be5E5be32fa3b8812a92e4ef50Bc#code