Hello there!
SVOI dev team greets you and would like to present the results of created Decentralized Exchange for the FreeTON Community contest:
#23 FreeTon DEX Implementation Stage 2 Contest.
Goal of this work is to create Decentralized Exchange based on Liquidity Pool mechanism and develop instruments, such as debot and site for interacting with developed smart contracts.
Repository for smart contracts compilation and deployment - https://github.com/SVOIcom/ton-testing-suite
Used ton-solidity compiler - solidity compiler v0.39.0
Used tvm-linker - latest tvm linker
This repository contains smart contracts that are used for Decentralized Exchange based on Liquidity Pairs
There are two main contracts related to swap pair - RootSwapPairContract and SwapPairContract.
RootSwapPairContract is used to deploy swap pair contract, update it and store information about already deployed swap pairs to prevent dublication of swap pairs.
SwapPairContract is used to implement liquidity pool swap mechanics and to provide access to it for users.
Below is short description of iterfaces and smart contracts.
These interfaces may be used to implement smart contracts that interact with swap pair or swap pair root contract
Contains main functionality of RootSwapPairContract - deployment of swap pair
Contains functions for swap pair contract upgrade
Contains structure with service information
Contains main functionality of SwapPairContract
Contains debug functions of SwapPairContract which could be implemented if debug version is required
Contains information structures used in SwapPairContract
Contains function to upgrade swap pair code
This is RootSwapPairContract. It is used to deploy swap pairs and keep track of unique swap pairs.
Contract implementing liquidity pair mechanism
Used tokens are TIP-3 tokens initially developed by Broxus for bridges between Ethereum and TON.
We decided that it will be great not to create a ton of new TIP-3 token types and used already existing and working solution.
Interfaces can be found at contracts/TIP-3/interfaces/
Contracts can be found at contracts/TIP-3/
Some additional contracts that can help you to deploy your own swap pair or tokens
There are compiled contracts at release page. You can use them for quick start.
If you want to compile smart contracts - please check repository https://github.com/SVOIcom/ton-testing-suite
There you will find instructions and instruments for smart contract compilation and testing/deploying test swap pair and debot contracts.
Deployed root swap pair contract: 0:3dc2f941650dbb757e47363109841a943c04a4824a6652b8be7377b945603137
Deployed test swap pair contract: 0:12987e0102acf7ebfe916da94a1308540b9894b3b99f8d5c7043a39725c08bdf
If you have any questions - feel free to ask our team in Telegram.