Information

(Work in progress) Basic backend for a cryptocurrency exchange using a created ERC20 (PresetMinterPauser) token

Functionality:

• Change Price
• Set ask and bid price
• Get lowest ask price
• get spread
• market buy/sell tokens

Notes

The exchange offers a base rate unless there a worse deal in the bid/ask price (to simulate a spread)

Installation

Eth-brownie should be installed. Please visit their documentation to get a full picture of how to install it.

Potential Improvements

Testing

Previously tested on rinkeby (in Remix)

1. Add a reset function, to save time via not needing to re-deploy the contract
2. Create mock contracts that are in the specified test states already, to save time ...

Functionality

1. Prompt for approval to transfer a base amount of input token, instead of manually approving
2. Add extra exchange functionality such as (more tokens, limit orders, volume etc.) ...