example.go

import (
  "imgproxy"
)

func foo() {
  imgproxy.SetEndpoint("https://my-imgproxy.com")
  imgproxy.SetKeySalt("MYKEY", "MYSALT")
  
  imgproxyURL := imgproxy.NewUrl(
    "local:///my_pic.jpg",
    imgproxy.ResizeOption{imgproxy.Fill, 640, 480},
    imgproxy.GravityOption{imgproxy.GravityCenter},
    imgproxy.SharpenOption{0.5},
  )
  
  anotherURL := imgproxyURL.WithOptions(
    imgproxy.FormatOption{"webp"}
  )
  
  imgproxyURL.String() // => https://my-imgproxy.com/jlkghgkjhg/rs:fill:640:480/g:ce/sh:0.5/plain/local:///my_pic.jpg
  anotherURL.String() // => https://my-imgproxy.com/jlkghgkjhg/rs:fill:640:480/g:ce/sh:0.5/plain/local:///my_pic.jpg@webp
}