@sagargami777 Javascript example::
// Reference:: https://smartapi.angelbroking.com/docs/WebSocket2
let ExchangeType = {
nse_cm: 1,
nse_fo: 2,
bse_cm: 3,
bse_fo: 4,
mcx_fo: 5,
ncx_fo: 7,
cde_fo: 13
}
// Reference: https://smartapi.angelbroking.com/docs/Orders#place
let ExchangeMap = {
BSE: 'bse_cm',
NSE: 'nse_cm',
NFO: 'nse_fo',
MCX: 'mcx_fo',
BFO: 'bse_fo',
CDS: 'cde_fo'
}
let exch_seg = 'NSE'
console.log(ExchangeType[ExchangeMap[exch_seg]])