Can't fetch data because of instrument keys

i want to fetch real time data for 250 stocks, can i do it without instrument key, because i am unable to find any instrument key for required stock, even in the json file there is no instrument key for stocks on for future and options the key is available there

he instrument key is mandatory for fetching data.

You can find the available instrument keys here: Upstox API Documentation - Instruments.

We recommend reviewing the Sample JSON Object: Sample JSON Object.