I have this data class in Stat, all properties have some default value.

data class Stat(
    val bR: Int?  = 1,
    val cS: Int? = 2,
    val fP: Int? = 3,
    val gA: Int? = 4,
    val gC: Int? = 5,
    val gOB: Int? = 6,
    val gS: Int? = 7
)

How do I get all properties and their respective values of an object? val stat = Stat( ) stat.forEach { property, value } Is this possible in Kotlin?

with reflection, it is possible

for (property in Stat::class.declaredMemberProperties) {
    println("${property.name}=${property.get(stat)}")
}

@ephemient Do I need to add a dependency I use kotlin 1.6

While reflection is possible, it is usually not intended for business-oriented use cases. If you need to do this, you might want to design the class differently instead. For instance, using a map might be more appropriate depending on how you intend to use it

The problem is that the backend team designed it away, and the use case is to show it as a list. It is so tightly coupled that I have to develop this smartly

you need the

kotlin-reflect

artifact for my code snippet. but if this is a repeating problem then I would generate a static list with #ksp or similar

val statProps = listOf(
    Stat::bR,
    Stat::cS,
    ...

to avoid the overhead

@zain what's the sample of the backend response? I guess something like this?

{
  "bR": 1,
  "cS": 2,
  ...
}

if yes, then you can follow what @Joffrey suggested. Turn your Retrofit body object into Map<String, Int> and you're good to go.

I agree with @Joffrey & @Erick Sumargo, it would be better (faster & simpler) to use map in this case:

fun stat(
  val bR: Int? = 1,
  val cS: Int? = 2,
  ...
) = mapOf(
  "bR" to bR,
  "cS" to cS,
  ...
)

val stat = stat() //you can override the default properties just like in a data class

//and now you can get the name of each property alongside its value
stat.forEach { (key, value) -> ... }

you could write an extension function to get a map representation:

fun Stat.asMap() = mapOf<String, Int?> (
  "bR" to bR,
  "cS" to cS,
  ...
)