kotlin-getting-api.kt

 private fun getResCards() {
        val urlAllResCards = "http://13.235.250.119/v2/restaurants/fetch_result/"
        val queue = Volley.newRequestQueue(activity as Context)

        val allResCardsReq = object : JsonObjectRequest(Method.GET, urlAllResCards, null,
            Response.Listener {
                val response = it.getJSONObject("data")
                if (response.getString("success") == "true") {
                    val data = response.getJSONArray("data")
                    for (i in 0 until data.length()) {
                        val restJsonObject = data.getJSONObject(i)
                        val restObject = ResEntity(
                            restJsonObject.getString("id"),
                            restJsonObject.getString("name"),
                            restJsonObject.getString("rating"),
                            restJsonObject.getString("cost_for_one"),
                            restJsonObject.getString("image_url")
                        )
                        DBTasks(activity as Context, 40, restObject).execute()
                        if (restObject in resList)
                            continue
                        else
                            resList.add(restObject)
                    }
                    adapter.notifyDataSetChanged()
                    progressLay.visibility = View.GONE
                }
            },
            Response.ErrorListener {
                makeToast("vollerr")
                progressLay.visibility = View.VISIBLE
                getResCards()
            }) {
            override fun getHeaders(): MutableMap<String, String> {
                val headers = HashMap<String, String>()
                headers["Content-type"] = "application/json"
                headers["token"] = "c4d68c99358269"
                return headers
            }
        }

        queue.add(allResCardsReq)
    }