SimpleBotArb

A small project to try arbitrage on dex between two pairs (same token) e.g. busd-usdt on pancake arbitrage to busd-usdt on biswap

What file is what

• file botarb.sol for smart contract on blockchain
• file calAMM.js for shows the logic of the bot's calculation method
• file createDataJson.js for fetching pairs in factory router on dex and generating json file
• file createSamePair.js for selecting only same pairs between 2 dex
• file tradeArbOnBsc.js for connects the smart contract and trade arbitrage when it detects the condition of the arbitrage

Logic Arbitrage

• go to file calAMM.js

run file calAMM.js

  node calAMM.js

Change data input if you want to test logic

Test([94781884.284722067962798239, 94699896.246303358765962232], [0.008911144541043 , 991.9861803364])

In the above example 
DATA INPUT
paris busd-usdt on pancakeswap  
94781884.284722067962798239 busd       
94699896.246303358765962232 usdt     

paris busd-usdt on twindex
991.9861803364              busd 
0.008911144541043           usdt

what this mean?

1. The bot will check the ratio to make arbitrage 1->2 or 2->1.
2. Then calculate whether to do arbitrage from liquidity pool more to less or less to more and calculate the numbers that will make the pool balanced out of the x*y = k equation.
3. Then, when  get the numbers for  arbitrage will be performed and the result will be displayed.

In the above example result displayed

1.LP MORE -> LP LESS because busd-usdt on pancakeswap have more liquidity than busd-usdt on twindex
2.Find and get numbers for arbitrage ->In pancakeswap sell amount busd 2.976692320410171 to get usdt 2.966682040880783
ratio in the pool will change from 0.9991349819742724 to to 0.9991349192956358
3.In twindex sell amount usdt 2.966682040880783 to get busd 989.0080109808019
ratio in the pool will change from 0.000008983133754969321 to 0.999134981974273
4.The profit you will get is busd(get after arbitrage) busd 989.0080109808019 - busd(initial cost) busd 2.976692320410171 = busd 986.0313186603918
5.Then you can see that the pool ratio between busd-usdt on pancakeswap and busd-usdt on twindex is almost close together that means the arbitrage is done

How to use

1. If you want to create your own data file (if not skip this Because I also give you dataSamePair.json)

• go to file createDataJson.js

Change this variable

Parameter	Type	Description
FileName	string	name file
Length	number	for pairs data length from factory router on dex
ADDRESS_ROUTER	string	router address

const FileName = 'BakerySwap'
const Length = 100
const ADDRESS_ROUTER = '0xCDe540d7eAFE93aC5fE6233Bee57E1270D3E330F'

In the above example. i need length paris 100 and router dex BakerySwap

run file createDataJson.js

you will get file dataBiswapPair.json

  node createDataJson.js

what pair length do you want?, and which router? You can create one

next step

• go to file createSamePair.js

Change this variable

Parameter	Type	Description
locationFile1	string	name file1 for combined
locationFile2	string	name file2 for combined

const locationFile1 = './dataApeSwapPair.json'
const locationFile2 = './dataBakerySwapPair.json'

At this step, you must have data json at least two router pairs. In the above example. I have dataApeSwapPair.json and dataBakerySwapPair.json

run file createSamePair.js

you will get file dataSamePair.json The resulting file is filter only same pairs from 2 dex routers for use in arbitrage

  node createSamePair.js

2. deploy smart contract

At this step, you must deploy smart contract botarb.sol on network Bsc. and send token which you want arbitrage to smartcontract

Change address token on file tradeArbOnBsc.js

 let addressMain = [
    '0xbb4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c',
    '0xe9e7CEA3DedcA5984780Bafc599bD69ADd087D56',
    '0xE02dF9e3e622DeBdD69fb838bB799E3F168902c5'
  ]

In the above example. I use wbnb / busd / bake . You can edit and add address token you want if the dataSamePair.json uses that token

3. final

At this step, you must add .env file in your folder and input your information.

INFURA_ID=
PRIVATE_KEY=
ADDRESS_CONTRACT=

run file tradeArbOnBsc.js

  node tradeArbOnBsc.js

If you get something like this means bot it works and it will run loop data in file dataSamePair.json until you stop it

)

This picture is when the bot does arbitrage it will show information including Profit and if it have Profit it will execute tx immediately and you will get txhash back

)

This is a contract that I test https://bscscan.com/address/0xc4f4643f0e5bdfa6901b7b76751517777c470112

Authors

• @cs0041

Warning You need to have a good understanding before working, please test the smart contract carefully, otherwise your money will be lost This is just a simple arbitrage project.Don't use it in production.