Project structure: main contract:

• MoniBox.sol MoniBox contains the main logics for :

  1. allowing a group to indicate interest & enter a micro-saving-agreement ;
  • they could indicate the total number of people needed in total or it could be open to as many as possible.
  • they would specify late-penalty rate say 10%
  • they would indicate profit rate say 4%
  • they would incate penalty for loan default - choose from among other things as enum
  • they would indicate how much each individual should contribute
  • they would also specify the sharing date

  2. Storing securely groups and their members and using this to distribute saving and profits

  3. Use oracle to fetch real-price data to get actual price in dollars based on indicated contribution for each individual

  4. Check and perform upkeep with chainlink automations as follow:

  • distributing funds at the end of the saving term
  • check if nearest saving term has come && placing penalties on late / no contribution at all ( 5% for late and 25% for no payment)

  4. Giving out loans to members for a set profit rate: say 5%

     • loans have and agreed repayment duration which is decide by the team at the start
     • chainlink automations to check repayment on due time:
       • implementing default penalty say : all saving held and loan + interest redacted

  5. Contract should acumulate:

     • 2% of all transactions that comes throught the platform as service fee

Foundry

Foundry is a blazing fast, portable and modular toolkit for Ethereum application development written in Rust.

Foundry consists of:

• Forge: Ethereum testing framework (like Truffle, Hardhat and DappTools).
• Cast: Swiss army knife for interacting with EVM smart contracts, sending transactions and getting chain data.
• Anvil: Local Ethereum node, akin to Ganache, Hardhat Network.
• Chisel: Fast, utilitarian, and verbose solidity REPL.

Documentation

https://book.getfoundry.sh/

Usage

Build

$ forge build

Test

$ forge test

Format

$ forge fmt

Gas Snapshots

$ forge snapshot

Anvil

$ anvil

Deploy

$ forge script script/Counter.s.sol:CounterScript --rpc-url <your_rpc_url> --private-key <your_private_key>

Cast

$ cast <subcommand>

Help

$ forge --help
$ anvil --help
$ cast --help