How to convert map to url query string?

Question

Do you know of any utility class/library, that can convert Map into URL-friendly query string?

Example:

I have a map:

\"param1\"=12,
\"param2         


        

Answer 1

Kotlin

mapOf(
  "param1" to 12,
  "param2" to "cat"
).map { "${it.key}=${it.value}" }
  .joinToString("&")