DOAPP

DOoAPP is a decentralized application developed as part of the Blockchain Developer certification module at Alyra (Buterin batch, May-July 2023).

Developpers:

Yannick Tison

Demo

You can find a video demonstration of the DApp at this link:

• the video demo should to be refreshed

• this project is still on work, some functions must be developped / finalized :

  • a call to function exactOutputSingle(ExactOutputSingleParams calldata ) should be executed when user sell token B to get token A (in place of exactInputSingle)
  • a security point should be fixed :
    => external call to function updateDCAConfigLastDCATime (uint _dcaConfigId, uint _lastDCATime) external;
  • a lot of traces remains in code (console.log)
  • decimals need to be managed for send /swap / received token amounts
  • OTC funciton must take in account token a and token B value (currently 1 A = 1 B)

Overview

DOApp is an application designed to enable efficient investment using the dollar-cost averaging method, but in a decentralized setting. This investment approach helps you mitigate the impact of price volatility when purchasing assets, by dividing the total sum to be invested into equal amounts spread across regular intervals. DOApp leverages the power of blockchain technology to offer this investment method in a decentralized way, making investment more transparent, secure, and democratic.

The project follows a client-server architecture, with separate components for the backend and frontend.

Backend

The backend of DOApp plays a pivotal role in creating DCA (Dollar Cost Averaging) configuration data, as well as in administering the necessary configuration processes. It handles all the operational intricacies involved in setting up and managing your DCA strategy, thereby ensuring an optimized and streamlined investment process.

Detailed documentation for the backend can be found here.

Frontend

The application's user interface, crafted using React.js and Chakra UI, serves as an interactive platform for engaging with the DCA process. The frontend empowers users by providing functionalities to formulate their DCA configuration, manage their token transactions including deposits and withdrawals, and monitor their DCA investments, all within a seamless and user-friendly environment.

Detailed documentation for the frontend can be found here.

Getting Started

To get started with the application, please refer to the individual README files in the backend and frontend directories for setup instructions and usage guidelines.

Deployment

The DOApp App is deployed on Vercel
This DApp is linked to solidity contracts deployed on Goerli :

DOApp deployed to 0x71A8c2Ac13a406f2C7CE71a36deD09fA6133F473 dataStorage deployed to 0xfDd9248fAB6e47d251E3E347F32b06d70F33b6C1 TokenA deployed to 0x3AcB780e5ea7E508728b5089B46B325302CC08E5 TokenB deployed to 0xc5e8eB58055737d61aa19990289F23e0F2E746d1 MockChainLinkAggregatorV3 deployed to 0x9bfB16E984bC4435ACAD691DbFeA6E73158c714E MockAAVEPoolAddressesProvider deployed to 0x752446066f20fEb0A5D7B97c087E5835A8015e81 MockAavePool deployed to 0x21B10a8f824609bDb9d41765C2062B54E4bf2DFd AAVE Pool Implementation set to 0x21B10a8f824609bDb9d41765C2062B54E4bf2DFd ATokenA address : 0x7268c27bc2f8b1e8C0cb1329a5B14666b87bB92B ATokenB address : 0x4718196CBA3B75f29D1490Da20911c53B96eeb16 MockUniswapISwapRouter deployed to 0x496e70d51c25Eb6ffdCC5f4Ca55E22afD2b67BA3

Feel free to explore the code and documentation to understand the inner workings. Happy DCA!