FuelSwap

FuelSwap is a Lightning-Fast DEX powered by Fuel. It allows users to swap tokens, provide liquidity, and earn fees.

Key Components

1. Router Contract (crypto-router) - Go to Router Contract
2. Factory Contract (crypto-factory) - Go to Factory Contract
3. Pair Contract (crypto-pair) - Go to Pair Contract

Features

• Token swaps
• Liquidity provision
• Automated market making
• Fee collection

Router Contract

The Router contract is the main entry point for users to interact with FuelSwap. It handles:

• Adding and removing liquidity
• Token swaps (exact input and exact output)
• Quote calculations
• Path-based multi-hop swaps

Factory Contract

The Factory contract is responsible for:

• Creating new trading pairs
• Managing the list of all trading pairs
• Setting and updating fee parameters

Pair Contract

The Pair contract implements the core AMM (Automated Market Maker) logic:

• Minting and burning liquidity tokens
• Executing swaps
• Maintaining reserves and price accumulators
• Implementing the constant product formula (x * y = k)

Key Functions

Router

• add_liquidity: Add liquidity to a trading pair
• remove_liquidity: Remove liquidity from a trading pair
• swap_exact_input: Swap a fixed input amount for a minimum output amount
• swap_exact_output: Swap a maximum input amount for a fixed output amount

Factory

• create_pair: Create a new trading pair
• get_pair: Retrieve the asset ID for a trading pair
• all_pairs_length: Get the total number of trading pairs

Pair

• mint: Mint liquidity tokens when adding liquidity
• burn: Burn liquidity tokens when removing liquidity
• swap: Execute a token swap
• get_reserves: Retrieve the current reserves of a trading pair

Security

FuelSwap implements several security measures:

• Reentrancy protection
• Overflow checks
• Deadline checks for transactions
• Minimum liquidity requirements

License

© 2025 0x77. All rights reserved.