BD1.5-Assignment2.js

let express = require('express');
let cors = require("cors");

const app=express();
app.use(cors());

app.get("/", (req, res)=>{
  res.send("Welcome to Stock Portfolio analysis API!");
})

app.get('/calculate-returns', (req, res) => {
  let boughtAt = parseFloat(req.query.boughtAt);
  let marketPrice = parseFloat(req.query.marketPrice);
  let quantity = parseInt(req.query.quantity);
  let returnValue = (marketPrice - boughtAt) * quantity;
  res.send(returnValue.toString());
});

app.get('/total-returns', (req, res) => {
  let stock1 = parseFloat(req.query.stock1);
  let stock2 = parseFloat(req.query.stock2);
  let stock3 = parseFloat(req.query.stock3);
  let stock4 = parseFloat(req.query.stock4);
  let totalReturns = stock1 + stock2 + stock3 + stock4;
  res.send(totalReturns.toString());
});

app.get('/calculate-return-percentage', (req, res) => {
  let boughtAt = parseFloat(req.query.boughtAt);
  let returns = parseFloat(req.query.returns);
  let returnPercentage = (returns / boughtAt) * 100;
  res.send(returnPercentage.toString());
});

app.get('/total-return-percentage', (req, res) => {
  let stock1 = parseFloat(req.query.stock1);
  let stock2 = parseFloat(req.query.stock2);
  let stock3 = parseFloat(req.query.stock3);
  let stock4 = parseFloat(req.query.stock4);
  let totalReturnPercentage = stock1 + stock2 + stock3 + stock4;
  res.send(totalReturnPercentage.toString());
});

app.get('/status', (req, res) => {
  let returnPercentage = parseFloat(req.query.returnPercentage);
  let status = returnPercentage > 0 ? 'Profit' : 'Loss';
  res.send(status);
});

app.listen(3000, () => console.log('Server running on port 3000'));