main.go

package main

import (
    "context"
    "flag"
    "fmt"
    "log"

    "github.com/etherdev12/go-defi/bclient"
    "github.com/etherdev12/go-defi/config"
)

var (
    THRESHOLD = flag.Float64("threshold", 0, "Threshold of ETH Price")
    BALANCE   = flag.Float64("balance", 0, "Balance of ETH to Swap")
)

func init() {
    flag.Parse()
}

func main() {
    ctx, cancel := context.WithCancel(context.Background())
    defer cancel()

    cfg := &config.Config{
        Blockchain: config.Blockchain{
            ProviderType: "direct",
            RPC:          "https://eth.llamarpc.com",
        },
    }
    client, err := cfg.EthClient(ctx)
    if err != nil {
        log.Fatal(err)
    }
    bc, err := bclient.NewClient(ctx, client)
    if err != nil {
        log.Fatal(err)
    }

    // Get price on uniswap
    price, err := bc.EthDaiPrice()
    if err != nil {
        log.Fatal(err)
    }
    fmt.Println(price)

    priceF, _ := price.Float64()
    if priceF > *THRESHOLD && *BALANCE > 0 {
        // Swap ETH into DAI
        fmt.Println("Try to swap", *BALANCE, "ETH into DAI...")
        //
        // Add swap code here
        //
    }
}