[BAEL-1170] Renamed folder to kotlin-js

kotlin-js/src/main/kotlin/com/baeldung/kotlinjs/CryptoRate.kt

@@ -0,0 +1,35 @@
+package com.baeldung.kotlinjs
+
+import kotlin.js.Json
+
+external fun require(module: String): dynamic
+
+fun main(args: Array<String>) {
+    println("Crypto Currency price API!")
+
+    val express = require("express")
+    val request = require("request");
+
+    val app = express()
+
+    //coin market api to fetch latest crypto currencies prices
+    val url = "https://api.coinmarketcap.com/v2/ticker/?limit=10"
+
+    app.get("/crypto", { _, res ->
+        request(url) { error: String?, _, body: String ->
+            res.type("application/json")
+            if (error.isNullOrEmpty()) {
+                val data: dynamic = JSON.parse<Json>(body)
+                res.send(data);
+            } else {
+                println(error)
+                res.send(error);
+            }
+        }
+
+    })
+
+    app.listen(3000, {
+        println("Listening on port 3000")
+    })
+}