Merge pull request #54 from Capstone-C2SE02-TI/update-chart-api

update chart api

Author: huynhducthanhtuan

src/controllers/Display.js

@@ -559,9 +559,9 @@ function DisplayController() {
 	};
 
 	this.getIndicators = async (req, res, next) => {
-		const {symbol, interval} = req.query
+		const {symbol, interval, period} = req.query
 		console.log(symbol, interval);
-		const data = await getIndicatorsData(`https://api3.binance.com/api/v3/klines?symbol=${symbol}&interval=${interval}`);
+		const data = await getIndicatorsData(`https://api3.binance.com/api/v3/klines?symbol=${symbol}&interval=${interval}`, period);
 		return res.status(200).json({
 			message: "successfully",
 			error: null,

src/services/crudDatabase/user.js

@@ -590,7 +590,7 @@ export const getLengthOfTransactionsList = async () => {
 	}
 };
 
-export const getIndicatorsData = async (urlApis) => {
+export const getIndicatorsData = async (urlApis, period) => {
 	const resp = await got(urlApis);
 	const data = JSON.parse(resp.body);
     let klinedata = data.map((d) => ({
@@ -610,7 +610,7 @@ export const getIndicatorsData = async (urlApis) => {
 		}))
 	  });
 
-	tulind.indicators.ema.indicator([closeData], [21], function(err, results) {
+	tulind.indicators.ema.indicator([closeData], [period], function(err, results) {
 
 		const emas = results[0]
 		klinedata = klinedata.map((d, index) => ({
@@ -630,6 +630,28 @@ export const getIndicatorsData = async (urlApis) => {
 			: false;
 		return { ...d, long, short };
 	  });
-	  
+	
+	  tulind.indicators.rsi.indicator([closeData], [period], function(err, results) {
+		
+		const rsis = results[0]
+		klinedata = klinedata.map((d, index) => ({
+			...d,
+			rsi: rsis[index]
+		}))
+	  });
+
+	  tulind.indicators.macd.indicator([closeData], [12, 26 , 9], function(err, results) {
+		
+		const madc1 = results[0]
+		const madc2 = results[1]
+		const madc3 = results[2]
+		klinedata = klinedata.map((d, index) => ({
+			...d,
+			macd_fast: madc1[index],
+			macd_slow: madc2[index],
+			macd_histogram: madc3[index],
+		}))
+	  });
+	
 	return klinedata;
 };