ParamParseKakashka.kt

fun trades(currency: String, timestamp: Long = -1L, limit_trades: Int = 0) : FundingBook {
        val param1 = if (timestamp != -1L)  "timestamp=$timestamp" else null
        val param2 = if (limit_trades != 0) "limit_trades=$limit_trades" else null

        val params : String
        if (param1 == null)
            if (param2 == null)
                params = ""
            else
                params = "?$param2"
        else
            if (param2 == null)
                params = "?$param1"
            else
                params = "?$param1&$param2"

        val response = get("$url/v1/trades/$currency$params")
        return objMapper.readValue(response.text, FundingBook::class.java)
}