Hi, is anyone able to help me with the correct syn...

# getting-started

[Tony Blundell]

Hi, is anyone able to help me with the correct syntax here please?
I have the following class, which basically gets a JSON string from AWS, then converts it to an instance of a data class...

class SecretsManager(region: String) {
    private val gson = Gson()
    private val smClient = AWSSecretsManagerClientBuilder.standard().withRegion(region).build()

    fun <T> getSecret(id: String): T {
        val req = GetSecretValueRequest().withSecretId(id)
        val json = smClient.getSecretValue(req).getSecretString()
        return gson.fromJson(json, T::class.java)
    }
}

To be used like this...

val myInstance = SecretsManager("eu-west-2").getSecret<MyDataClass>("myId")

Currently, I get an error Cannot use 'T' as reified type parameter. I can get around this by marking the function as inline and T as reified , but then I can't access the private attributes from within the function.
What's the best way to do this in Kotlin?

[araqnid]

Usually I’d make a public member function that takes a java Class or a KClass, and then an inline function/extension function with a reified type parameter that just calls the member with T::class.java

[Wesley Acheson]

Well sounds like you kind of have a design issue. You want to read as a type, and the type has a private member.

But you want to access as the member. Right?

[Tony Blundell]

Thanks both! Not quite @Wesley Acheson, private member's are on the class, not the type.