package main

  import (
    "fmt"

    "github.com/unitedwardrobe/imgproxy-go"
  )

  func main() {
    ip, err := imgproxy.NewImgproxy(imgproxy.Config{
      BaseURL:       "http://localhost",
      SignatureSize: 15,
      Key:           hex.EncodeToString([]byte("key")),
      Salt:          hex.EncodeToString([]byte("salt")),
      EncodePath:    false,
    })
    if err != nil {
      panic(err)
    }

    url, err := ip.
      Builder().
      Resize(imgproxy.ResizingTypeFill, 123, 456, true, false).
      DPR(10).
      Format("png").
      Generate("path/to/my/image.jpg")
    if err != nil {
      panic(err)
    }

    fmt.Println(url) // http://localhost/448bHumukUmn0qpKBY2z/dpr:10/f:png/rs:fill:123:456:1:0/plain/path/to/my/image.jpg
  }