how to get qoute which has &

When you request for a quote data and if the server doesn't have any cached value then it will return empty JSON in response. Before you consume data, add a check for the containsKey NSE:IL&FSTRANS. I just tried and got this response

{
	"status": "success",
	"data": {
		"NSE:IL\u0026FSTRANS": {
			"instrument_token": 4696321,
			"timestamp": "2018-02-08 11:24:48",
			"last_price": 76.2,
			"last_quantity": 50,
			"last_trade_time": "2018-02-08 11:24:48",
			"average_price": 75.97,
			"volume": 86831,
			"buy_quantity": 106869,
			"sell_quantity": 121404,
			"ohlc": {
				"open": 75.1,
				"high": 76.9,
				"low": 74.05,
				"close": 74.05
			},
			"net_change": 0,
			"oi": 0,
			"oi_day_high": 0,
			"oi_day_low": 0,
			"depth": {
				"buy": [{
					"price": 76.05,
					"quantity": 50,
					"orders": 1
				}, {
					"price": 76,
					"quantity": 1729,
					"orders": 8
				}, {
					"price": 75.95,
					"quantity": 790,
					"orders": 2
				}, {
					"price": 75.85,
					"quantity": 705,
					"orders": 3
				}, {
					"price": 75.8,
					"quantity": 1,
					"orders": 1
				}],
				"sell": [{
					"price": 76.2,
					"quantity": 140,
					"orders": 1
				}, {
					"price": 76.25,
					"quantity": 409,
					"orders": 2
				}, {
					"price": 76.3,
					"quantity": 144,
					"orders": 1
				}, {
					"price": 76.35,
					"quantity": 730,
					"orders": 3
				}, {
					"price": 76.4,
					"quantity": 56,
					"orders": 1
				}]
			}
		}
	}
}

got it..thanks