Krystal ILO Trader

A small program that help to create trades for Krystal ILO sales.

Quick Start

go run ./cmd/app/main.go --config internal/config/config.example.yaml

Example config file:

chain_id: 1
node_rpc: "https://rpc.flashbots.net/fast"
gas_price_endpoint: "https://gas-api.metaswap.codefi.network/networks/1"
keystore_dir: "keystore"
router_address: "0x68b3465833fb72a70ecdf485e0e4c7bd8665fc45" # Uniswap v3 router address
input_token: "0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee" # ETH
output_token: "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48" # USDC
fee_tier: 500 # 0.05%, fee tier of uniswap v3 pool
gas_tip_multiplier: 1.0
#start_time: "2024-08-01T00:00:00Z" # Run immediately if omitted.
#gas_limit: 300000 # Call node to estimate gas if omitted.
#min_return_amount: 7000000000 # 7000 USDC
weth: "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2"
skip_check_tx_status: false
accounts:
  - address: "0x0000000000000000000001111111111111111111"
    passphrase: "123456"
    amount: 3000000000000000000 # 3 ETH
    priv_key: "" # optional, set this empty to use keystore
    #recipient: "" # recipient wallet, default is account address.
    max_gas_fee: 200000000000000000 # 0.2 ETH, default is estimated from metamask API.
    #min_return_amount: 12000000000 # 12000 USDC, if omitted, use global value set above.

Example keystore file:

{"address":"1111111111111111111111111111111111111111","crypto":{"cipher":"aes-128-ctr","ciphertext":"encrypted_ciphertext","cipherparams":{"iv":"iv"},"kdf":"scrypt","kdfparams":{"dklen":32,"n":262144,"p":1,"r":8,"salt":"salt"},"mac":"mac"},"id":"id","version":3}

NOTE:

1. Keystore directory contains encrypted private keys and store in json format.
2. Replace passphrase of accounts with correct passphrase to decrypt private keys.
3. Replace output_token to sale token.
4. Router address is different between chains. For base, the address is 0x2626664c2603336e57b271c5c0b26f421741e481.
5. Weth address is different between chains. For base, the address is 0x4200000000000000000000000000000000000006.
6. Need to find the correct fee tier for uniswap v3 pool, so the router can find the correct pool for swap.