Developer Guide

Overview

PicWe provides a comprehensive smart contract infrastructure for RWA capital markets. This guide helps developers integrate with our platform.

Quick Start

1. Choose Your Network

2. Get Contract Addresses

See Contract Addresses for all deployed contracts.

3. Review API Reference

See API Reference for function signatures and parameters.

Core Contracts

WEUSD System

RWA Platform

Invest Module

Integration Examples

Minting WEUSD

// 1. Approve USDC spending
IERC20(usdcAddress).approve(mintRedeemAddress, amount);
 
// 2. Mint WEUSD
IMintRedeem(mintRedeemAddress).mint(amount);

Mincasting RWA Tokens

// 1. Approve WEUSD spending
IERC20(weusdAddress).approve(marketAddress, amount);
 
// 2. Mincast tokens
(uint256 tokens, uint256 fee) = IMarket(marketAddress).mincast(
    weusdAddress,  // token
    amount,        // tokenWorth
    minExpected    // desired (slippage protection)
);

Participating in IRO

// 1. Approve WEUSD spending
IERC20(weusdAddress).approve(glaAddress, amount);
 
// 2. Subscribe (during public phase)
IGLA(glaAddress).publicOfferingBuy(amount);
 
// 3. Claim tokens (after market initialization)
IGLA(glaAddress).claim();

Investing via Module

// 1. Approve WEUSD to InvestmentPool
IERC20(weusdAddress).approve(investmentPoolAddress, amount);
 
// 2. Invest
uint256 investmentId = IInvestmentManager(managerAddress).invest(
    assetId,
    amount
);
 
// 3. Redeem at maturity
uint256 profit = IInvestmentManager(managerAddress).redeem(investmentId);

Recommended Tools

Web3 Libraries

Development Frameworks

Token Decimals

Important decimal information:

Always check decimals before calculations!

Best Practices

1. Always Approve First

Token transfers require prior approval:

token.approve(spender, amount);

2. Use Slippage Protection

For mincast/melt operations, set desired parameter:

// Set to 99% of expected (1% slippage tolerance)
uint256 desired = expectedAmount * 99 / 100;

3. Check Contract States

Verify conditions before transactions:

• Market initialized?
• Contract paused?
• User whitelisted?

4. Handle Reverts

Common revert reasons:

• Insufficient balance
• Approval not granted
• Slippage exceeded
• Market not active

Resources

• Contract Addresses — All deployed contracts
• API Reference — Function signatures
• Security — Security information

Support

Need help?

• Check FAQ
• Contact Support
• Join our developer Discord