@gkhurana02 What kind of option data is needed, I recently can get LTP data using websocket

I use data directly from NSE save it in txt file and call a function to read its contents for symbol code
For Equity
For FnO

return the code to tokens for LTP

I recently had posted this issue getting error on my Google Sheet apps script while trying to connect for token.
Following is my code!

Some params have been masked. Kindly guide me correct code.
Where are revisions needed?